技术领域Technical Field
本发明涉及一种医疗器材，特别是涉及一种用于向患者体内注射药剂的自动注射装置及其使用方法。The present invention relates to a medical device, and in particular to an automatic injection device for injecting medicine into a patient's body and a use method thereof.
背景技术Background technique
自动注射器用于向患者体内注射药剂，该注射通常由患者完成。Autoinjectors are used to inject medication into a patient's body, and the injection is usually done by the patient.
自动注射器是比较复杂的装置，一般现有的自动注射器的内部容器为符合法规标准的注射器，注射器内部装载水剂，注射器的一端装有可以被推动的活塞，另一端布置注射针。通过自动注射器完成对注射器内部水剂的推送动作。为了可靠，自动注射器应满足一定数量的限制条件要求，例如装置的稳定性、安全性、牢固性、易操作性等。An automatic syringe is a relatively complex device. Generally, the internal container of an existing automatic syringe is a syringe that meets regulatory standards. The syringe is loaded with liquid medicine. One end of the syringe is equipped with a piston that can be pushed, and the other end is equipped with an injection needle. The automatic syringe completes the pushing action of the liquid medicine inside the syringe. In order to be reliable, the automatic syringe should meet a certain number of restrictive conditions, such as stability, safety, firmness, and ease of operation of the device.
例如，为了避免自动注射器的意外自动启动，在运输或储存期间，装置应包括可靠的锁定部件。同样，当使用者希望使用自动注射器时，装置不应意外启动，而是只能在使用者真正希望时启动，即在它贴靠在希望实施注射的身体部位时才启动。因此，设置可靠的启动锁定器是很重要的。另一方面，自动注射器的使用不应太困难，防止体弱的人不能方便地使用该注射器。另外，为了避免装置使用后受伤的危险，自动注射器应包括针头安全装置，避免装置使用后针头仍保持外露。此外，自动注射器本身应该朝着集成化、多功能、易用性的方向发展，以适应复杂多变的应用场景。For example, in order to avoid accidental automatic activation of the auto-injector, the device should include a reliable locking component during transportation or storage. Similarly, when the user wants to use the auto-injector, the device should not be activated accidentally, but can only be activated when the user really wants it, that is, when it is against the part of the body where the injection is desired. Therefore, it is important to provide a reliable activation lock. On the other hand, the use of the auto-injector should not be too difficult to prevent the weak from being unable to use the syringe conveniently. In addition, in order to avoid the risk of injury after the use of the device, the auto-injector should include a needle safety device to prevent the needle from remaining exposed after the use of the device. In addition, the auto-injector itself should develop in the direction of integration, multi-function, and ease of use to adapt to complex and changing application scenarios.
发明内容Summary of the invention
本发明提供一种自动注射装置及其使用方法，可以满足使用中的各项要求。The present invention provides an automatic injection device and a method for using the same, which can meet various requirements in use.
本发明的技术方案如下：The technical solution of the present invention is as follows:
一种自动注射装置，其主要由提供动力的驱动组件、提供外部保护的外壳组件和容纳药剂的注射器组成；An automatic injection device mainly consists of a driving component for providing power, a housing component for providing external protection, and a syringe for containing medicine;
其中，所述驱动组件包括外锁套和远端端盖，所述外锁套和远端端盖相互连接，且所述外锁套能够相对于所述远端端盖进行轴向相向移动，所述远端端盖与所述外壳组件连接；Wherein, the driving assembly comprises an outer locking sleeve and a distal end cover, the outer locking sleeve and the distal end cover are connected to each other, and the outer locking sleeve can move axially relative to the distal end cover, and the distal end cover is connected to the outer shell assembly;
还包括设置在所述外锁套和所述远端端盖之间的被压缩的第一弹性储能元件、可拆卸式连接在所述远端端盖上并套设在所述外锁套之内的内锁套、套设在所述内锁套之内并穿过所述外锁套的推杆、位于所述推杆之内且设置在所述推杆和所述远端端盖之间的被压缩的第二弹性储能元件；其中，It also includes a compressed first elastic energy storage element disposed between the outer locking sleeve and the distal end cover, an inner locking sleeve detachably connected to the distal end cover and sleeved within the outer locking sleeve, a push rod sleeved within the inner locking sleeve and passing through the outer locking sleeve, and a compressed second elastic energy storage element located within the push rod and disposed between the push rod and the distal end cover; wherein,
所述外锁套具有解锁槽；The outer locking sleeve has an unlocking groove;
所述内锁套上具有向内凸出的突起特征，所述推杆上对应设有容置所述突起特征的通孔；The inner locking sleeve has a protruding feature protruding inward, and the push rod is correspondingly provided with a through hole for accommodating the protruding feature;
当所述外锁套受触发力而相对所述远端端盖发生移动后，所述第一弹性储能元件受压而进一步储能，所述解锁槽随所述外锁套移动至所述内锁套的突起特征之外时，所述第二弹性储能元件推动所述推杆，使所述内锁套的突起特征向外顶出，所述推杆被所述第二弹性储能元件推动而移动，进而推动所述注射器内的药剂排出。When the outer locking sleeve is moved relative to the distal end cover by the trigger force, the first elastic energy storage element is compressed to further store energy, and when the unlocking groove moves with the outer locking sleeve to the outside of the protruding feature of the inner locking sleeve, the second elastic energy storage element pushes the push rod to push the protruding feature of the inner locking sleeve outward, and the push rod is pushed by the second elastic energy storage element to move, thereby pushing the medicine in the syringe to be discharged.
作为本发明所述的自动注射装置的一种优选实施方式，所述内锁套的突起特征面向所述远端端盖的一表面为与所述第二弹性储能元件的推动方向成角度的斜面，所述推杆上的所述通孔对应所述突起特征的斜面的表面与所述斜面相贴合，且也为斜面。As a preferred embodiment of the automatic injection device described in the present invention, a surface of the protruding feature of the inner locking sleeve facing the distal end cover is a slope that is angled with the pushing direction of the second elastic energy storage element, and the surface of the through hole on the push rod corresponding to the slope of the protruding feature is in contact with the slope and is also a slope.
作为本发明所述的自动注射装置的一种优选实施方式，所述突起特征设置在一杆件上，所述杆件的一端固定于所述内锁套，另一端为自由端，所述杆件的周围具有开口式空间；所述突起特征和所述杆件设置一个或多个。As a preferred embodiment of the automatic injection device described in the present invention, the protruding feature is arranged on a rod, one end of the rod is fixed to the inner locking sleeve, and the other end is a free end, and there is an open space around the rod; one or more protruding features and the rod are arranged.
作为本发明所述的自动注射装置的一种优选实施方式，所述外锁套设有表面突起，所述远端端盖在对应位置设有滑槽；所述表面突起设置于所述远端端盖对应位置的滑槽内，实现了所述外锁套与所述远端端盖的相互连接；并且，所述表面突起能够在所述滑槽内沿轴向滑动；所述外锁套的表面突起与所述解锁槽相比更靠近所述外锁套的端部。As a preferred embodiment of the automatic injection device described in the present invention, the outer locking sleeve is provided with a surface protrusion, and the distal end cover is provided with a slide groove at a corresponding position; the surface protrusion is arranged in the slide groove at the corresponding position of the distal end cover, thereby realizing the mutual connection between the outer locking sleeve and the distal end cover; and the surface protrusion can slide axially in the slide groove; the surface protrusion of the outer locking sleeve is closer to the end of the outer locking sleeve than the unlocking groove.
作为本发明所述的自动注射装置的一种优选实施方式，所述内锁套具有末端突起，所述远端端盖在对应位置设有末端槽，所述内锁套的末端突起与所述远端端盖的末端槽对应扣合，将所述内锁套的一端与所述远端端盖相固定。As a preferred embodiment of the automatic injection device described in the present invention, the inner locking sleeve has a terminal protrusion, and the distal end cover is provided with a terminal groove at a corresponding position, and the terminal protrusion of the inner locking sleeve is correspondingly engaged with the terminal groove of the distal end cover to fix one end of the inner locking sleeve to the distal end cover.
作为本发明所述的自动注射装置的一种优选实施方式，所述远端端盖还设有中心杆，所述第二弹性储能元件套设在所述中心杆上，并且一端抵在所述远端端盖端部，另一端抵在所述推杆端部内表面。As a preferred embodiment of the automatic injection device described in the present invention, the distal end cover is also provided with a center rod, and the second elastic energy storage element is sleeved on the center rod, with one end abutting against the end of the distal end cover and the other end abutting against the inner surface of the push rod end.
作为本发明所述的自动注射装置的一种优选实施方式，所述外锁套的外表面设置有导向突起，所述导向凸起与所述外壳组件的相应结构配合，限制所述外锁套的圆周旋转。As a preferred embodiment of the automatic injection device of the present invention, a guide protrusion is provided on the outer surface of the outer locking sleeve, and the guide protrusion cooperates with a corresponding structure of the housing assembly to limit the circumferential rotation of the outer locking sleeve.
作为本发明所述的自动注射装置的一种优选实施方式，所述远端端盖上设有为悬臂突起，所述悬臂突起突出设置在所述远端端盖的外表面，所述远端端盖通过所述悬臂突起与所述外壳组件固定连接，限制所述驱动组件与所述外壳组件的轴向分离。As a preferred embodiment of the automatic injection device described in the present invention, the distal end cover is provided with a cantilever protrusion, and the cantilever protrusion is protrudingly arranged on the outer surface of the distal end cover. The distal end cover is fixedly connected to the shell assembly through the cantilever protrusion, thereby limiting the axial separation of the drive assembly and the shell assembly.
作为本发明所述的自动注射装置的一种优选实施方式，所述外锁套具有近端内孔，所述自动注射装置的所述驱动组件还包括由外向内依次设置在所述外锁套的近端内孔中的齿槽和齿环，并且所述齿槽固定在所述外锁套上，所述推杆穿过所述齿槽和所述齿环；所述齿槽与所述推杆为孔轴配合，且不能相对旋转；所述推杆上设有螺旋轨道，所述齿环的内孔中设有滑块突起，所述滑块突起设置在所述螺旋轨道内；所述齿环外表面设有弹性臂，所述齿槽在内孔对应位置设有周向齿槽，所述弹性臂张紧在所述周向齿槽内，并且所述弹性臂的末端具有能插入所述周向齿槽的拨齿部。As a preferred embodiment of the automatic injection device described in the present invention, the outer locking sleeve has a proximal inner hole, and the driving assembly of the automatic injection device also includes a tooth groove and a tooth ring arranged in sequence from the outside to the inside in the proximal inner hole of the outer locking sleeve, and the tooth groove is fixed on the outer locking sleeve, and the push rod passes through the tooth groove and the tooth ring; the tooth groove and the push rod are hole-axis matched and cannot rotate relative to each other; the push rod is provided with a spiral track, and a slider protrusion is provided in the inner hole of the tooth ring, and the slider protrusion is arranged in the spiral track; an elastic arm is provided on the outer surface of the tooth ring, and the tooth groove is provided with a circumferential tooth groove at a corresponding position of the inner hole, the elastic arm is tensioned in the circumferential tooth groove, and the end of the elastic arm has a tooth-pulling portion that can be inserted into the circumferential tooth groove.
作为本发明所述的自动注射装置的一种优选实施方式，所述齿槽具有卡扣特征，相应地，所述外锁套具有容置槽，所述卡扣特征的形状与所述容置槽的形状适配，将所述齿槽的卡扣特征安装在所述外锁套的容置槽内，进而将所述齿槽固定在所述外锁套上以阻止相对旋转。As a preferred embodiment of the automatic injection device described in the present invention, the tooth groove has a snap feature, and correspondingly, the outer locking sleeve has a receiving groove, the shape of the snap feature is adapted to the shape of the receiving groove, and the snap feature of the tooth groove is installed in the receiving groove of the outer locking sleeve, thereby fixing the tooth groove on the outer locking sleeve to prevent relative rotation.
作为本发明所述的自动注射装置的一种优选实施方式，所述驱动组件还包括复位锁套，所述复位锁套套设在所述外锁套内；所述复位锁套包括复位斜面，所述复位斜面可被所述外锁套所受的触发力推动进而使所述复位锁套旋转；所述复位锁套还包括复位锁止，所述外锁套对应所述复位锁止还设有复位止档，其中，所述复位锁套旋转后，及所述外锁套在第一弹性储能元件的推动下回到原位后，所述复位止档挡在所述复位锁止的近端。As a preferred embodiment of the automatic injection device described in the present invention, the drive assembly also includes a reset lock sleeve, which is sleeved in the outer lock sleeve; the reset lock sleeve includes a reset inclined surface, which can be pushed by the trigger force exerted on the outer lock sleeve to rotate the reset lock sleeve; the reset lock sleeve also includes a reset lock, and the outer lock sleeve is further provided with a reset stopper corresponding to the reset lock, wherein, after the reset lock sleeve rotates and the outer lock sleeve returns to its original position under the push of the first elastic energy storage element, the reset stopper is blocked at the proximal end of the reset lock.
作为本发明所述的自动注射装置的一种优选实施方式，所述外锁套具有位于近端的粗部和位于远端的细部，所述复位锁套包括大口径部和小口径部，所述复位锁套的大口径部设于所述外锁套的粗部的内孔中，所述复位锁套的小口径部位于所述外锁套的细部的内孔中；所述复位锁套的小口径部与所述内锁套的端部相对设置。As a preferred embodiment of the automatic injection device described in the present invention, the outer locking sleeve has a thick portion located at the proximal end and a thin portion located at the distal end, the reset locking sleeve includes a large-diameter portion and a small-diameter portion, the large-diameter portion of the reset locking sleeve is arranged in the inner hole of the thick portion of the outer locking sleeve, and the small-diameter portion of the reset locking sleeve is located in the inner hole of the thin portion of the outer locking sleeve; the small-diameter portion of the reset locking sleeve is arranged opposite to the end of the inner locking sleeve.
作为本发明所述的自动注射装置的一种优选实施方式，所述复位锁止为在所述复位锁套的大口径部的边缘沿轴向延伸的杆状，并且其端部具有沿径向往外延伸的外延部。As a preferred embodiment of the automatic injection device of the present invention, the reset lock is in the shape of a rod extending axially at the edge of the large-diameter portion of the reset lock sleeve, and its end has an extension portion extending radially outward.
作为本发明所述的自动注射装置的一种优选实施方式，所述外锁套的内表面设有限位条，所述复位锁套的大口径部的底面边缘设有对应卡槽，所述外锁套的限位条卡设在所述复位锁套的卡槽内，阻止了所述复位锁套与外锁套之间的相对旋转；并且，所述限位条的长度还设置为能够保证在所述复位锁套被推动时，所述限位条脱离所述卡槽，使所述复位锁套能够相对于所述外锁套沿周向旋转。As a preferred embodiment of the automatic injection device described in the present invention, a limit strip is provided on the inner surface of the outer locking sleeve, and a corresponding groove is provided on the bottom edge of the large-diameter portion of the reset locking sleeve. The limit strip of the outer locking sleeve is clamped in the groove of the reset locking sleeve to prevent relative rotation between the reset locking sleeve and the outer locking sleeve; and the length of the limit strip is also set to ensure that when the reset locking sleeve is pushed, the limit strip is disengaged from the groove, so that the reset locking sleeve can rotate circumferentially relative to the outer locking sleeve.
作为本发明所述的自动注射装置的一种优选实施方式，所述外壳组件包括近端端帽、触发套筒及外壳，所述触发套筒从近端方向安装在所述外壳的内孔中，所述近端端帽从近端方向嵌套安装在所述触发套筒的外表面，所述触发套筒用于对所述外锁套施加触发力，及在所述外锁套被所述第一弹性储能元件推压复位后对所述注射器的针头进行保护。As a preferred embodiment of the automatic injection device described in the present invention, the shell assembly includes a proximal end cap, a trigger sleeve and a shell, the trigger sleeve is installed in the inner hole of the shell from the proximal direction, and the proximal end cap is nested and installed on the outer surface of the trigger sleeve from the proximal direction. The trigger sleeve is used to apply a trigger force to the outer locking sleeve and protect the needle of the syringe after the outer locking sleeve is pushed and reset by the first elastic energy storage element.
作为本发明所述的自动注射装置的一种优选实施方式，所述触发套筒设有卡扣，所述外壳设有挡板特征部，所述触发套筒安装在所述外壳内之后，所述触发套筒的卡扣被所述外壳内部的挡板特征限制，防止所述触发套筒在所述外壳中掉出来。As a preferred embodiment of the automatic injection device described in the present invention, the trigger sleeve is provided with a buckle, and the shell is provided with a baffle feature. After the trigger sleeve is installed in the shell, the buckle of the trigger sleeve is restricted by the baffle feature inside the shell, preventing the trigger sleeve from falling out of the shell.
作为本发明所述的自动注射装置的一种优选实施方式，所述近端端帽设有突起，所述触发套筒设有凹槽，所述近端端帽的突起扣合在所述触发套筒的凹槽里面，实现所述近端端帽和所述触发套筒的安装。As a preferred embodiment of the automatic injection device described in the present invention, the proximal end cap is provided with a protrusion, and the trigger sleeve is provided with a groove, and the protrusion of the proximal end cap is snapped into the groove of the trigger sleeve to achieve the installation of the proximal end cap and the trigger sleeve.
基于相同的发明构思，本发明还提供一种上述的自动注射装置的使用方法，包括：Based on the same inventive concept, the present invention also provides a method for using the automatic injection device, comprising:
向所述外锁套施加触发力或触发信号，使所述外锁套相对所述远端端盖移动，同时所述第一弹性储能元件被进一步压缩；Applying a trigger force or a trigger signal to the outer locking sleeve to move the outer locking sleeve relative to the distal end cover, and at the same time the first elastic energy storage element is further compressed;
所述外锁套的解锁槽移动至所述内锁套的突起特征之外时，所述第二弹性储能元件推动所述推杆，使所述内锁套的突起特征向外顶出，所述推杆被所述第二弹性储能元件推动而移动，实现进给；When the unlocking groove of the outer locking sleeve moves to the outside of the protruding feature of the inner locking sleeve, the second elastic energy storage element pushes the push rod to make the protruding feature of the inner locking sleeve push outward, and the push rod is pushed by the second elastic energy storage element to move, thereby achieving feeding;
进给完成后，移除所述触发力或触发信号，所述第一弹性储能元件推动所述外锁套复位。After the feeding is completed, the trigger force or the trigger signal is removed, and the first elastic energy storage element pushes the outer locking sleeve to reset.
优选地，通过所述外壳组件中的触发套筒施加触发力或触发信号。Preferably, the trigger force or the trigger signal is applied via a trigger sleeve in the housing assembly.
基于相同的发明构思，本发明还提供一种自动注射装置，其主要由提供动力的驱动组件、提供外部保护的外壳组件和容纳药剂的注射器组成；Based on the same inventive concept, the present invention also provides an automatic injection device, which is mainly composed of a driving component for providing power, a housing component for providing external protection, and a syringe containing a medicine;
其中，所述驱动组件包括外锁套和远端端盖，所述外锁套和远端端盖相互连接，且所述外锁套能够相对于所述远端端盖进行轴向相向移动，所述远端端盖与所述外壳组件连接；Wherein, the driving assembly comprises an outer locking sleeve and a distal end cover, the outer locking sleeve and the distal end cover are connected to each other, and the outer locking sleeve can move axially relative to the distal end cover, and the distal end cover is connected to the outer shell assembly;
还包括设置在所述外锁套和所述远端端盖之间的被压缩的第一弹性储能元件、可拆卸式连接在所述远端端盖上并套设在所述外锁套之内的内锁套、套设在所述内锁套之内并穿过所述外锁套的推杆、位于所述推杆之内且设置在所述推杆和所述远端端盖之间的被压缩的第二弹性储能元件；其中，It also includes a compressed first elastic energy storage element disposed between the outer locking sleeve and the distal end cover, an inner locking sleeve detachably connected to the distal end cover and sleeved within the outer locking sleeve, a push rod sleeved within the inner locking sleeve and passing through the outer locking sleeve, and a compressed second elastic energy storage element located within the push rod and disposed between the push rod and the distal end cover; wherein,
所述外锁套具有解锁槽；The outer locking sleeve has an unlocking groove;
所述内锁套上具有向内凸出的突起特征，所述推杆上对应设有容置所述突起特征的通孔；The inner locking sleeve has a protruding feature protruding inward, and the push rod is correspondingly provided with a through hole for accommodating the protruding feature;
所述外锁套具有近端内孔，所述驱动组件还包括由外向内依次设置在所述外锁套的近端内孔中的复位锁套、齿槽和齿环，并且所述齿槽固定在所述外锁套上，所述推杆穿过所述齿槽和所述齿环；所述齿槽与所述推杆为孔轴配合，且不能相对旋转；所述推杆上设有螺旋轨道，所述齿环的内孔中设有滑块突起，所述滑块突起设置在所述螺旋轨道内；所述齿环外表面设有弹性臂，所述齿槽在内孔对应位置设有周向齿槽，所述弹性臂张紧在所述周向齿槽内，并且所述弹性臂的末端具有能插入所述周向齿槽的拨齿部；The outer locking sleeve has a proximal inner hole, and the driving assembly also includes a reset locking sleeve, a tooth groove and a tooth ring which are sequentially arranged in the proximal inner hole of the outer locking sleeve from the outside to the inside, and the tooth groove is fixed on the outer locking sleeve, and the push rod passes through the tooth groove and the tooth ring; the tooth groove and the push rod are hole-shaft matched and cannot rotate relative to each other; a spiral track is provided on the push rod, and a slider protrusion is provided in the inner hole of the tooth ring, and the slider protrusion is arranged in the spiral track; an elastic arm is provided on the outer surface of the tooth ring, and the tooth groove is provided with a circumferential tooth groove at a position corresponding to the inner hole, the elastic arm is tensioned in the circumferential tooth groove, and the end of the elastic arm has a tooth-pulling portion that can be inserted into the circumferential tooth groove;
所述复位锁套包括复位斜面，所述复位斜面可被所述外锁套所受的触发力推动进而使所述复位锁套旋转，所述复位斜面的位置设置为使触发力先触发所述外锁套轴向移动，一段距离后再触发所述复位斜面使所述复位锁套旋转；所述复位锁套还包括复位锁止，所述外锁套对应所述复位锁止还设有复位止档，其中，所述复位锁套旋转后，及所述外锁套在第一弹性储能元件的推动下回到原位后，所述复位止档能够挡在所述复位锁止的近端；The reset lock sleeve comprises a reset inclined surface, which can be pushed by the trigger force on the outer lock sleeve to rotate the reset lock sleeve, and the position of the reset inclined surface is set so that the trigger force first triggers the outer lock sleeve to move axially, and then triggers the reset inclined surface after a certain distance to rotate the reset lock sleeve; the reset lock sleeve also comprises a reset lock, and the outer lock sleeve is further provided with a reset stopper corresponding to the reset lock, wherein after the reset lock sleeve rotates and the outer lock sleeve returns to its original position under the push of the first elastic energy storage element, the reset stopper can block the proximal end of the reset lock;
当所述外锁套受触发力而相对所述远端端盖发生移动后，所述第一弹性储能元件受压而进一步储能，所述解锁槽随所述外锁套移动至所述内锁套的突起特征之外时，所述第二弹性储能元件推动所述推杆，使所述内锁套的突起特征向外顶出，所述推杆被所述第二弹性储能元件推动而移动，进而推动所述注射器内的药剂排出；当所述推杆进给到位后，移除所述触发力，所述第一弹性储能元件能够推动所述外锁套归原位。When the outer locking sleeve is moved relative to the distal end cover by the trigger force, the first elastic energy storage element is compressed to further store energy, and when the unlocking groove moves with the outer locking sleeve to the outside of the protruding feature of the inner locking sleeve, the second elastic energy storage element pushes the push rod to make the protruding feature of the inner locking sleeve push outward, and the push rod is pushed by the second elastic energy storage element to move, thereby pushing the medicine in the syringe to be discharged; when the push rod is fed into place, the trigger force is removed, and the first elastic energy storage element can push the outer locking sleeve back to its original position.
作为上述的自动注射装置的一种优选，所述外壳组件包括触发套筒，所述触发套筒用于向所述外锁套及所述复位锁套施加触发力。As a preferred embodiment of the above-mentioned automatic injection device, the housing assembly includes a trigger sleeve, and the trigger sleeve is used to apply a trigger force to the outer locking sleeve and the reset locking sleeve.
基于相同的发明构思，本发明还提供一种上述的自动注射装置的触发、信号反馈、复位及锁止方法，包括：Based on the same inventive concept, the present invention also provides a triggering, signal feedback, resetting and locking method of the above-mentioned automatic injection device, comprising:
向所述外锁套施加触发力或触发信号，使所述外锁套相对所述远端端盖移动，同时所述第一弹性储能元件被进一步压缩；经过预定时间或距离后，所述触发力或触发信号施加至所述复位锁套，使其发生旋转；Applying a trigger force or a trigger signal to the outer locking sleeve to move the outer locking sleeve relative to the distal end cover, and at the same time the first elastic energy storage element is further compressed; after a predetermined time or distance, the trigger force or the trigger signal is applied to the reset locking sleeve to cause it to rotate;
所述外锁套的解锁槽移动至所述内锁套的突起特征之外时，所述第二弹性储能元件推动所述推杆，使所述内锁套的突起特征向外顶出，所述推杆被所述第二弹性储能元件推动而移动，实现进给；所述推杆进给的同时带动所述齿环在所述齿槽内旋转，所述齿环的弹性臂碰撞所述齿槽的周向齿槽发出声音，实现信号反馈；When the unlocking groove of the outer locking sleeve moves beyond the protruding feature of the inner locking sleeve, the second elastic energy storage element pushes the push rod, so that the protruding feature of the inner locking sleeve is pushed outward, and the push rod is pushed by the second elastic energy storage element to move, thereby realizing feeding; while the push rod is feeding, it drives the gear ring to rotate in the tooth groove, and the elastic arm of the gear ring collides with the circumferential tooth groove of the tooth groove to produce a sound, thereby realizing signal feedback;
进给完成后，移除所述触发力或触发信号，所述第一弹性储能元件推动所述外锁套复位，基于所述复位锁套发生了旋转，所述外锁套复位后，所述复位止档挡在所述复位锁套的复位锁止之外，防止所述自动注射装置再次被触发，实现了锁止。After the feeding is completed, the trigger force or trigger signal is removed, and the first elastic energy storage element pushes the outer locking sleeve to reset. Based on the rotation of the reset locking sleeve, after the outer locking sleeve is reset, the reset stopper is blocked outside the reset lock of the reset locking sleeve to prevent the automatic injection device from being triggered again, thereby achieving locking.
与现有技术相比，本发明的有益效果如下：Compared with the prior art, the present invention has the following beneficial effects:
1.本发明的自动注射装置是一种纯机械结构的模块化装置，因此具备机械结构可靠性高、稳定性好的固有属性。1. The automatic injection device of the present invention is a modular device of a purely mechanical structure, and therefore has the inherent properties of high mechanical structure reliability and good stability.
2.本发明的自动注射装置集成了触发、蓄能、发声反馈、复位、锁定功能等多种功能，具备很多的功能特性和完善的触发启动、自动传动特性；本发明通过合理布置传动结构和方案，可以实现一次触发即可自动完成释放弹簧蓄能、推送动作、发声反馈、以及注射后的复位和锁定功能，大大提高了装置的集成度，降低操作过程的复杂度；在自动注射装置集成度高的前提下，可以实现使用后的针头自动保护，提高装置的安全性要求。2. The automatic injection device of the present invention integrates multiple functions such as triggering, energy storage, voice feedback, resetting, and locking functions, and has many functional characteristics and perfect triggering and starting, and automatic transmission characteristics; the present invention can realize the automatic completion of releasing spring energy storage, pushing action, voice feedback, and resetting and locking functions after injection in one trigger through reasonable arrangement of transmission structure and scheme, which greatly improves the integration of the device and reduces the complexity of the operation process; under the premise of high integration of the automatic injection device, automatic protection of the needle after use can be realized, thereby improving the safety requirements of the device.
3.本发明的自动注射装置的发声反馈功能可以作为信息交互的接口，通过具体的声音反馈、触觉反馈，向外部发送声音，使装置本身的功能状态可以被使用者监测，从而便于使用者进行下一步的控制或决策执行。在操作过程中的信息传递路径为先从装置到人，再从人到装置。因此装置本身具备闭环系统的属性，可以大大提高装置在操作过程中的安全性和可靠性。3. The voice feedback function of the automatic injection device of the present invention can be used as an interface for information interaction. Through specific voice feedback and tactile feedback, the sound is sent to the outside, so that the functional status of the device itself can be monitored by the user, thereby facilitating the user to perform the next step of control or decision execution. The information transmission path during the operation process is first from the device to the person, and then from the person to the device. Therefore, the device itself has the properties of a closed-loop system, which can greatly improve the safety and reliability of the device during operation.
4.本发明的自动注射装置作为一种多功能性的自动注射装置，可以结合应用在多种注射场合中(例如慢性病治疗、急救治疗、诊断等具体细分领域)，技术方案的临床适用性很广泛；4. As a multifunctional automatic injection device, the automatic injection device of the present invention can be used in combination with a variety of injection occasions (such as chronic disease treatment, emergency treatment, diagnosis and other specific sub-fields), and the clinical applicability of the technical solution is very wide;
5.本发明的自动注射装置中所包含的触发、蓄能、发声反馈、复位、锁定的功能，可以根据不同的使用目标群体(例如高等院校，科研单位，企业，教育系统，医疗系统等)，进行合理的装置化适配，可以使用金属材质或高分子材质制造，可以作为重复性使用或一次性使用的自动注射装置。5. The functions of triggering, energy storage, voice feedback, resetting and locking included in the automatic injection device of the present invention can be reasonably adapted according to different target groups (such as colleges and universities, scientific research institutions, enterprises, education systems, medical systems, etc.). It can be made of metal or polymer materials and can be used as a reusable or disposable automatic injection device.
当然，实施本发明的任一产品并不一定需要同时达到以上所述的所有优点。Of course, any product implementing the present invention does not necessarily need to achieve all of the above-mentioned advantages at the same time.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本发明实施例的自动注射装置经过生产组装后的原始状态图；FIG1 is a diagram of the original state of the automatic injection device according to an embodiment of the present invention after production and assembly;
图2为本发明实施例的自动注射装置的零部件分解图；FIG2 is an exploded view of the components of the automatic injection device according to an embodiment of the present invention;
图3为本发明实施例的自动注射装置的齿槽立体结构示意图；FIG3 is a schematic diagram of the three-dimensional structure of the tooth groove of the automatic injection device according to an embodiment of the present invention;
图4为本发明实施例的自动注射装置的齿环立体结构示意图；FIG4 is a schematic diagram of a three-dimensional structure of a gear ring of an automatic injection device according to an embodiment of the present invention;
图5为本发明实施例的自动注射装置的复位锁套的立体结构示意图；FIG5 is a schematic diagram of the three-dimensional structure of the reset lock sleeve of the automatic injection device according to an embodiment of the present invention;
图6为本发明实施例的自动注射装置的外锁套的立体结构示意图；FIG6 is a schematic diagram of the three-dimensional structure of the outer locking sleeve of the automatic injection device according to an embodiment of the present invention;
图7为本发明实施例的自动注射装置的外锁套的导向突起与外壳的滑槽或轨道的一种具体配合结构的示意图；FIG7 is a schematic diagram of a specific matching structure between the guide protrusion of the outer locking sleeve and the slide groove or track of the housing of the automatic injection device according to an embodiment of the present invention;
图8为本发明实施例的自动注射装置的推杆的立体结构示意图；FIG8 is a schematic diagram of the three-dimensional structure of the push rod of the automatic injection device according to an embodiment of the present invention;
图9为本发明实施例的自动注射装置的推杆与齿环、齿槽的配合示意图；FIG9 is a schematic diagram of the cooperation between the push rod, the gear ring and the gear groove of the automatic injection device according to an embodiment of the present invention;
图10为本发明实施例的自动注射装置的内锁套的立体结构示意图；FIG10 is a schematic diagram of the three-dimensional structure of the inner locking sleeve of the automatic injection device according to an embodiment of the present invention;
图11为本发明实施例的自动注射装置的远端端盖的立体结构示意图；FIG11 is a schematic diagram of the three-dimensional structure of the distal end cover of the automatic injection device according to an embodiment of the present invention;
图12为本发明实施例的自动注射装置的远端端盖的悬臂突起与外壳固定连接的一个具体结构；FIG12 is a specific structure of a cantilever protrusion of a distal end cover of an automatic injection device according to an embodiment of the present invention being fixedly connected to a housing;
图13为本发明实施例的自动注射装置的复位弹簧的立体结构示意图；FIG13 is a schematic diagram of the three-dimensional structure of a return spring of an automatic injection device according to an embodiment of the present invention;
图14为本发明实施例的自动注射装置的进给弹簧的立体结构示意图；FIG14 is a schematic diagram of the three-dimensional structure of a feed spring of an automatic injection device according to an embodiment of the present invention;
图15为本发明实施例的自动注射装置的注射器的立体结构示意图；FIG15 is a schematic diagram of the three-dimensional structure of the syringe of the automatic injection device according to an embodiment of the present invention;
图16为本发明实施例的自动注射装置的近端端帽的立体结构示意图；FIG16 is a schematic diagram of the three-dimensional structure of the proximal end cap of the automatic injection device according to an embodiment of the present invention;
图17为本发明实施例的自动注射装置的触发套筒的立体结构示意图；FIG17 is a schematic diagram of the three-dimensional structure of the trigger sleeve of the automatic injection device according to an embodiment of the present invention;
图18为本发明实施例的自动注射装置的外壳的立体结构示意图；FIG18 is a schematic diagram of the three-dimensional structure of the housing of the automatic injection device according to an embodiment of the present invention;
图19为本发明实施例的自动注射装置的外壳的剖面结构示意图；FIG19 is a schematic cross-sectional view of the housing of the automatic injection device according to an embodiment of the present invention;
图20为本发明实施例的自动注射装置的原始状态轴向剖面图；FIG20 is an axial cross-sectional view of the automatic injection device in the original state according to an embodiment of the present invention;
图21为本发明实施例的自动注射装置的驱动组件A在原始状态的轴向剖面图；FIG21 is an axial cross-sectional view of the driving assembly A of the automatic injection device according to an embodiment of the present invention in an original state;
图22为本发明实施例的自动注射装置的外壳组件B在原始状态的轴向剖面图；FIG22 is an axial cross-sectional view of the housing assembly B of the automatic injection device according to an embodiment of the present invention in an original state;
图23为本发明实施例的自动注射装置的注射器C的剖面结构示意图；FIG23 is a schematic cross-sectional view of a syringe C of an automatic injection device according to an embodiment of the present invention;
图24为本发明实施例的自动注射装置的原始状态剖视图，并且与图20相比，图24围绕轴向旋转了90度；FIG24 is a cross-sectional view of the automatic injection device according to the embodiment of the present invention in an original state, and compared with FIG20 , FIG24 is rotated 90 degrees around the axial direction;
图25a和图25b为本发明实施例的自动注射装置的齿槽和齿环以及推杆的具体配合关系示意图，其中图25a为发声反馈外部安装状态示意图，图25b为发声反馈内部安装状态示意图；Fig. 25a and Fig. 25b are schematic diagrams showing the specific matching relationship between the tooth groove, the tooth ring and the push rod of the automatic injection device according to the embodiment of the present invention, wherein Fig. 25a is a schematic diagram showing the external installation state of the sound feedback, and Fig. 25b is a schematic diagram showing the internal installation state of the sound feedback;
图26a为本发明实施例的自动注射装置的推杆的主视图，图26b为本发明实施例的自动注射装置的推杆的立体图，特别凸显了外表面的对称螺旋轨道；FIG. 26a is a front view of the push rod of the automatic injection device according to an embodiment of the present invention, and FIG. 26b is a stereoscopic view of the push rod of the automatic injection device according to an embodiment of the present invention, particularly highlighting the symmetrical spiral track on the outer surface;
图27为本发明实施例的自动注射装置的触发过程的半剖示意图；FIG27 is a half-section schematic diagram of the triggering process of the automatic injection device according to an embodiment of the present invention;
图28为本发明实施例的自动注射装置的触发初始状态剖面示意图；FIG28 is a cross-sectional schematic diagram of the automatic injection device in the initial state of triggering according to an embodiment of the present invention;
图29为本发明实施例的自动注射装置的触发进行状态剖面示意图；FIG29 is a cross-sectional schematic diagram of the triggering state of the automatic injection device according to an embodiment of the present invention;
图30为本发明实施例的自动注射装置的进给状态剖面示意图；FIG30 is a cross-sectional schematic diagram of the feeding state of the automatic injection device according to an embodiment of the present invention;
图31为本发明实施例的自动注射装置的进给结束状态的剖面示意图；31 is a cross-sectional schematic diagram of the feeding end state of the automatic injection device according to the embodiment of the present invention;
图32为本发明实施例的自动注射装置的驱动组件A进给状态示意图；FIG32 is a schematic diagram of a feeding state of a driving assembly A of an automatic injection device according to an embodiment of the present invention;
图33a为本发明实施例的自动注射装置的发声反馈原始位置，图33b为自动注射装置的发声反馈执行状态，图中仅示出了齿槽1、齿环2、推杆5三个零件，其他零件未示出；FIG. 33a is the original position of the sound feedback of the automatic injection device according to the embodiment of the present invention, and FIG. 33b is the execution state of the sound feedback of the automatic injection device, wherein only the tooth groove 1, the tooth ring 2 and the push rod 5 are shown in the figure, and other parts are not shown;
图34a-图34e为本发明实施例的自动注射装置的触发状态下复位锁套被触发而发生旋转的示意图，其中图34a-34c显示了依时间顺序触发力和复位锁套的位置示意图，图34d和图34e分别显示了复位锁套的初始位置和触发后的位置；34a to 34e are schematic diagrams of the reset lock sleeve being triggered and rotating in the triggered state of the automatic injection device according to the embodiment of the present invention, wherein FIGS. 34a to 34c are schematic diagrams showing the triggering force and the position of the reset lock sleeve in time sequence, and FIGS. 34d and 34e respectively show the initial position and the position of the reset lock sleeve after triggering;
图35a-图35c为本发明实施例的自动注射装置原始状态、触发状态和结束状态下复位和锁定功能实现的示意图；35a-35c are schematic diagrams showing the implementation of the reset and lock functions of the automatic injection device in the original state, the triggered state and the end state according to the embodiment of the present invention;
图36a-图36c为本发明实施例的自动注射装置的外锁套与复位锁套相对位置在原始状态、触发状态和结束状态的示意图；36a-36c are schematic diagrams of the relative positions of the outer locking sleeve and the reset locking sleeve of the automatic injection device according to the embodiment of the present invention in the original state, the triggered state and the end state;
图37a-图37c为本发明实施例的自动注射装置的复位锁止与复位止档相对位置在原始状态、触发状态和结束状态的示意图；37a to 37c are schematic diagrams of the relative positions of the reset lock and the reset stop of the automatic injection device according to the embodiment of the present invention in the original state, the triggered state and the end state;
图38a-图38c为本发明实施例的自动注射装置的复位锁止发生弹性变形的过程示意图。38a-38c are schematic diagrams showing the process of elastic deformation of the reset lock of the automatic injection device according to an embodiment of the present invention.
具体实施方式Detailed ways
本发明提供了一种自动注射装置，其可用来在触发后自动推送该装置的容器中的水剂，此种水剂可以是注射用药。本发明还涉及配置成触发、蓄能、发声反馈、复位、锁定功能相结合的一种自动注射装置的配置方案和/或装配方法。本发明的自动注射装置主要应用在医用器械器材领域中，针对自我注射治疗或者他人辅助注射治疗的使用场合。本发明通过合理配置自动注射装置传动组件上的各个传动件，以及包括在各个传动件上所布置的结构特征，设计了一种可自动触发、触发后自动执行推送动作、结束推送动作后可自动复位并自动锁止的自动注射装置。同时，针对不同使用场合的要求，可在该自动注射装置内灵活设置发声反馈机构和/或发声反馈结构特征，实现装置可调节发声大小和发声响应间隔，进一步扩展自动注射装置的发声反馈功能，可适应多种运转场景。The present invention provides an automatic injection device, which can be used to automatically push the liquid in the container of the device after being triggered, and the liquid can be an injectable drug. The present invention also relates to a configuration scheme and/or assembly method of an automatic injection device configured to combine triggering, energy storage, voice feedback, reset, and locking functions. The automatic injection device of the present invention is mainly used in the field of medical instruments and equipment, for self-injection treatment or other people's assisted injection treatment. The present invention designs an automatic injection device that can be automatically triggered, automatically performs a push action after being triggered, and can automatically reset and automatically lock after the push action is completed by reasonably configuring each transmission member on the transmission assembly of the automatic injection device, and the structural features arranged on each transmission member. At the same time, according to the requirements of different use occasions, the voice feedback mechanism and/or voice feedback structural features can be flexibly set in the automatic injection device, so that the device can adjust the sound size and the sound response interval, further expand the voice feedback function of the automatic injection device, and can adapt to a variety of operation scenarios.
目前已有的自动注射装置主要是指推送动作的自动实现，通过释放被压缩在注射装置内的弹簧，弹簧力被释放并作用在推杆上，推杆通过推送活塞把注射装置内部的水剂经过注射针输送到自动注射装置外部或人体/动物体中。The currently available automatic injection devices mainly refer to the automatic realization of the pushing action. By releasing the spring compressed in the injection device, the spring force is released and acts on the push rod. The push rod pushes the piston to transport the aqueous solution inside the injection device through the injection needle to the outside of the automatic injection device or to the human/animal body.
以上所述为自动注射装置的主要功能，但是自动注射装置的应用场景是复杂多变的，自动注射装置本身应该朝着集成化、多功能、易操作的方向发展，以适应复杂多变的应用场景。The above are the main functions of the automatic injection device, but the application scenarios of the automatic injection device are complex and changeable. The automatic injection device itself should develop in the direction of integration, multi-function and easy operation to adapt to the complex and changeable application scenarios.
例如，对于需要紧急使用的急救场合，需要尽可能降低操作流程。一般的自动注射装置需要经过解除针头保护、对准注射位置、触发按键注射、移除注射位置的过程。复杂的操作过程会导致患者错过最佳救治时间。因此需要对自动注射装置的自动化特性进行扩展，将更多分散的操作过程进行时序梳理并将多功能尽量集成化到同一个装置上，这样可以将自动注射装置的功能点做的更加集成化，在面对紧急情况的时候，尽量降低操作复杂度，尽可能的通过一步或两步操作过程完成所有的自动注射功能。For example, for emergency situations that require emergency use, the operation process needs to be reduced as much as possible. General automatic injection devices need to go through the process of removing needle protection, aligning the injection site, triggering the button injection, and removing the injection site. The complicated operation process will cause the patient to miss the best time for treatment. Therefore, it is necessary to expand the automation characteristics of the automatic injection device, sort out the more scattered operation processes in time, and integrate the multiple functions into the same device as much as possible. In this way, the functional points of the automatic injection device can be made more integrated. In the face of emergency situations, the complexity of the operation can be reduced as much as possible, and all automatic injection functions can be completed through one or two steps as much as possible.
再例如，对于需要长期治疗、感知能力弱的患者，在使用自动注射装置的过程中往往需要更多的操作提示来告知自动注射装置的运行状态。一般的操作提示是通过视觉区分使用前和使用后的不同状态，因此需要对功能特性进行扩展，增加听觉或触觉提示。For another example, patients who need long-term treatment and have weak perception often need more operation prompts to inform them of the operating status of the automatic injection device during use. The general operation prompts distinguish the different states before and after use by vision, so it is necessary to expand the functional characteristics and add auditory or tactile prompts.
又例如，装置的安全性也需要结合自动化特性一并考虑，要确保使用前防误触功能完好，使用后注射器端部的注射针能够被装置保护起来，避免对人体造成伤害。For example, the safety of the device also needs to be considered in conjunction with its automation features. It is necessary to ensure that the anti-accidental touch function is intact before use, and that the injection needle at the end of the syringe can be protected by the device after use to avoid harm to the human body.
针对以上多种需求，本发明配置了一种自动注射装置。In view of the above multiple needs, the present invention configures an automatic injection device.
本发明所提供的自动注射装置可以独立完成触发、蓄能、发声反馈、复位、锁定相结合的时序组合功能，通过合理布置传动结构和方案，可以实现一次触发即可自动完成释放弹簧蓄能、推送动作、发声反馈、以及注射后的复位和锁定功能，大大提高了装置的集成度，降低操作过程的复杂度，在自动注射装置集成度高的前提下，可以实现使用后的针头自动保护，提高装置的安全性要求，这样才使自动注射装置具备真正的更加全面的自动化意义。The automatic injection device provided by the present invention can independently complete the time-series combination functions of triggering, energy storage, audible feedback, resetting, and locking. By reasonably arranging the transmission structure and scheme, it can realize that the release of spring energy storage, pushing action, audible feedback, and resetting and locking functions after injection can be automatically completed with one trigger, which greatly improves the integration of the device and reduces the complexity of the operation process. Under the premise of high integration of the automatic injection device, automatic protection of the needle after use can be achieved, and the safety requirements of the device are improved, so that the automatic injection device has a truly more comprehensive automation significance.
本发明还扩展了自动注射装置的发声反馈功能。在生产过程中，通过调节与发声大小和响应间隔相关的结构件尺寸，可以进一步丰富和多样化注射装置在使用过程中的发声反馈功能。The present invention also expands the sound feedback function of the automatic injection device. During the production process, by adjusting the size of the structural parts related to the sound size and the response interval, the sound feedback function of the injection device during use can be further enriched and diversified.
本发明的自动注射装置在结构上采用嵌套式设计，零部件组合的集成度高，当需要面对市场需求进行大量生产的时候，使用高分子材质可以大幅度降低生产成本。结合高分子装置生产批量大、成本低廉的优势，可以把装置从重复使用的场合，扩展到一次性使用的场合，确保自动注射装置常用常新，提高了装置使用周期内的稳定性。The automatic injection device of the present invention adopts a nested design in structure, and the integration of parts is high. When mass production is required to meet market demand, the use of polymer materials can significantly reduce production costs. Combined with the advantages of large production batches and low costs of polymer devices, the device can be expanded from repeated use to single-use occasions, ensuring that the automatic injection device is often used and new, and improving the stability of the device during its use cycle.
下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
实施例Example
本实施例涉及配置成触发、复位、锁定、蓄能、发声反馈等功能相结合的一种自动注射装置，该装置经过生产组装后的原始状态如图1所示。该自动注射装置的零部件分解图如图2所示。This embodiment relates to an automatic injection device configured to combine the functions of triggering, resetting, locking, energy storage, and voice feedback. The original state of the device after production and assembly is shown in Figure 1. The exploded view of the parts of the automatic injection device is shown in Figure 2.
图2中可见，自动注射装置包括如下零部件：As can be seen in Figure 2, the automatic injection device includes the following components:
齿槽1；Tooth 1;
齿环2；Gear ring 2;
复位锁套3；Reset lock sleeve 3;
外锁套4；External locking sleeve 4;
推杆5；Putt 5;
内锁套6；Internal locking sleeve 6;
远端端盖7；Distal end cap 7;
复位弹簧8；Return spring 8;
进给弹簧9；Feed spring 9;
注射器10；Syringe 10;
近端端帽11；A proximal end cap 11;
触发套筒12；Trigger sleeve 12;
外壳13。Housing 13.
以下将结合其他附图说明上述各零部件的结构和安装关系。在以下描述中，近端指靠近接受注射的身体部位的一端，远端至远离接受注射的身体部位的一端。The structures and installation relationships of the above-mentioned components will be described below in conjunction with other drawings. In the following description, the proximal end refers to the end close to the body part receiving the injection, and the distal end refers to the end far from the body part receiving the injection.
请结合参见图3和图4，其中图3为齿槽1的立体结构示意图，图4为齿环2的立体结构示意图，齿槽1和齿环2为发声反馈功能的主要零部件。Please refer to FIG. 3 and FIG. 4 , wherein FIG. 3 is a schematic diagram of the three-dimensional structure of the tooth groove 1 , and FIG. 4 is a schematic diagram of the three-dimensional structure of the gear ring 2 . The tooth groove 1 and the gear ring 2 are main components of the sound feedback function.
如图3所示，齿槽1的主体为圆柱体形，其外表面具有两个与其等长度的凸条1a，每个凸条1a的一端具有卡扣特征103，该卡扣特征103对应的齿槽1的主体部分具有开口，并且该卡扣特征103的侧面由远端至近端为平滑过渡的弧面，该卡扣特征103能够与外锁套4上的相应结构配合，用于将齿槽1连接于外锁套4，使齿槽1不能相对于外锁套4发生周向旋转。As shown in FIG3 , the main body of the tooth groove 1 is cylindrical, and its outer surface has two convex strips 1a of equal length, and one end of each convex strip 1a has a snap feature 103. The main body of the tooth groove 1 corresponding to the snap feature 103 has an opening, and the side surface of the snap feature 103 is a smoothly transitioned arc surface from the distal end to the proximal end. The snap feature 103 can cooperate with the corresponding structure on the outer locking sleeve 4 to connect the tooth groove 1 to the outer locking sleeve 4 so that the tooth groove 1 cannot rotate circumferentially relative to the outer locking sleeve 4.
齿槽1还形成有端面孔101，该端面孔101具体是位于与卡扣特征103相背的另一端。端面孔101为非圆形，具体的形状相当于是在一个圆形的上、下两端分别用相互平行的两条直线切掉上、下的圆弧部分而得到的。该端面孔101能够与推杆5的相应结构配合，用于限制推杆5的周向旋转运动，使推杆5只能沿轴向执行平移运动。The tooth groove 1 is also formed with an end hole 101, which is specifically located at the other end opposite to the buckle feature 103. The end hole 101 is non-circular, and its specific shape is equivalent to the shape obtained by cutting off the upper and lower arc parts of a circle with two parallel straight lines at the upper and lower ends. The end hole 101 can cooperate with the corresponding structure of the push rod 5 to limit the circumferential rotation movement of the push rod 5, so that the push rod 5 can only perform translational movement along the axial direction.
齿槽1具有比端面孔101更大的内部空腔，该内部空腔的表面还形成有周向齿槽102，该周向齿槽102由多个齿102a依次相邻围绕而成。该周向齿槽102用于与齿环2的相应结构配合实现发声反馈功能。The tooth groove 1 has an inner cavity larger than the end hole 101, and the surface of the inner cavity is also formed with a circumferential tooth groove 102, which is formed by a plurality of teeth 102a surrounding each other in sequence. The circumferential tooth groove 102 is used to cooperate with the corresponding structure of the gear ring 2 to realize the sound feedback function.
请参见图4，齿环2的主体部分为圆柱体形，并且齿环2是嵌套在齿槽1的内部空腔中。具体地，齿环2具有两条弹性臂201，两条弹性臂201沿齿环2周向呈中心对称设置；每条弹性臂201的一端固定在齿环2的外周侧，另一端为自由端，并且该自由端具有与齿槽1的周向齿槽102相配合实现发声功能的拨齿部2011。齿环2通过两条弹性臂201在齿槽1的周向齿槽102内张紧，并且每条弹性臂201的拨齿部2011分别位于周向齿槽102的相邻齿102a之间的齿槽内。当齿环2相对于齿槽1周向旋转时，齿环2的弹性臂201的拨齿部2011在齿槽1的周向齿槽102上的多个齿102a之间的齿槽滑动，发出哒哒声，实现声音反馈功能。Please refer to FIG4 , the main body of the tooth ring 2 is cylindrical, and the tooth ring 2 is nested in the internal cavity of the tooth groove 1. Specifically, the tooth ring 2 has two elastic arms 201, and the two elastic arms 201 are centrally symmetrically arranged along the circumference of the tooth ring 2; one end of each elastic arm 201 is fixed to the outer peripheral side of the tooth ring 2, and the other end is a free end, and the free end has a tooth-picking portion 2011 that cooperates with the circumferential tooth groove 102 of the tooth groove 1 to achieve the sound-generating function. The tooth ring 2 is tensioned in the circumferential tooth groove 102 of the tooth groove 1 through the two elastic arms 201, and the tooth-picking portion 2011 of each elastic arm 201 is respectively located in the tooth groove between adjacent teeth 102a of the circumferential tooth groove 102. When the gear ring 2 rotates circumferentially relative to the tooth groove 1, the tooth-moving portion 2011 of the elastic arm 201 of the gear ring 2 slides between the multiple teeth 102a on the circumferential tooth groove 102 of the tooth groove 1, making a clicking sound, thereby realizing the sound feedback function.
此外，齿环2还在其内孔203的内表面向内凸设有滑块突起202，滑块突起202设置有两个，这两个滑块突起202相对设置。滑块突起202用于与推杆5的对应结构配合，实现推杆5在沿轴向移动时带动齿环2沿周向旋转。In addition, the gear ring 2 is also provided with a slider protrusion 202 protruding inwardly on the inner surface of its inner hole 203. Two slider protrusions 202 are provided, and the two slider protrusions 202 are arranged opposite to each other. The slider protrusion 202 is used to cooperate with the corresponding structure of the push rod 5, so that the push rod 5 drives the gear ring 2 to rotate in the circumferential direction when moving in the axial direction.
请参见图5，为复位锁套3的立体结构示意图。Please refer to FIG. 5 , which is a schematic diagram of the three-dimensional structure of the reset lock sleeve 3 .
如图5所示，复位锁套3包括大口径部31和小口径部32，并具有贯穿的内孔33。As shown in FIG. 5 , the reset lock sleeve 3 includes a large-diameter portion 31 and a small-diameter portion 32 , and has a penetrating inner hole 33 .
大口径部31的边缘设有复位锁止301。复位锁止301在相对方向分别设置一个，共设置两个；每个复位锁止301为在复位锁套3的大口径部31的底面边缘向远离小口径部32的方向沿轴向延伸的杆状，并且其远离小口径部32的端部具有沿径向向外凸出的外延部3011。The edge of the large-diameter portion 31 is provided with a reset lock 301. One reset lock 301 is provided in opposite directions, and two reset locks 301 are provided in total; each reset lock 301 is in the shape of a rod extending axially from the bottom edge of the large-diameter portion 31 of the reset lock sleeve 3 in a direction away from the small-diameter portion 32, and its end away from the small-diameter portion 32 has an extension portion 3011 protruding radially outward.
此外，复位锁套3的大口径部31还设有复位部303，复位部303与复位锁止301沿相同方向延伸设置，并且复位部303具有复位斜面302，复位斜面302用于被触发力按压触发而使复位锁套3发生沿周向的转动。复位部303在相对方向分别设置一个，共设置两个。在图5中，复位部303与复位锁止301的周向距离较近。In addition, the large-diameter portion 31 of the reset lock sleeve 3 is further provided with a reset portion 303, which is extended in the same direction as the reset lock 301, and has a reset slope 302, which is used to be pressed and triggered by a trigger force to cause the reset lock sleeve 3 to rotate in the circumferential direction. One reset portion 303 is provided in each opposite direction, and two reset portions 303 are provided in total. In FIG5 , the circumferential distance between the reset portion 303 and the reset lock 301 is relatively close.
另外，复位锁套3的大口径部31的底面边缘还设有径向相对的两个卡槽311，卡槽311用于与外锁套4的对应结构配合，阻止复位锁套3与外锁套4在一定轴向距离范围内的周向旋转。In addition, the bottom edge of the large-diameter portion 31 of the reset lock sleeve 3 is also provided with two radially opposite grooves 311, which are used to cooperate with the corresponding structure of the outer lock sleeve 4 to prevent the reset lock sleeve 3 and the outer lock sleeve 4 from circumferentially rotating within a certain axial distance range.
请参见图6，为外锁套4的立体结构示意图。Please refer to FIG. 6 , which is a schematic diagram of the three-dimensional structure of the outer locking sleeve 4 .
如图6所示，外锁套4包括粗部41和细部42两个部分，粗部41和细部42分别具有外壁，并且粗部41和细部42之间通过过渡台进行过渡。粗部41和细部42分别具有贯穿且中空的内腔。As shown in Fig. 6, the outer locking sleeve 4 includes two parts, namely, a thick part 41 and a thin part 42. The thick part 41 and the thin part 42 each have an outer wall, and a transition platform is provided between the thick part 41 and the thin part 42. The thick part 41 and the thin part 42 each have a through and hollow inner cavity.
具体地，外锁套4在细部42设有表面突起406，在图6中，外锁套4设有两个表面突起406，两个表面突起406相背设置，表面突起406的形状为棱条状；表面突起406用于与远端端盖7的相应结构配合，实现并引导外锁套4相对于远端端盖7在轴向的移动。Specifically, the outer locking sleeve 4 is provided with a surface protrusion 406 in the detail 42. In Figure 6, the outer locking sleeve 4 is provided with two surface protrusions 406, which are arranged back to back and are shaped like ribs. The surface protrusions 406 are used to cooperate with the corresponding structure of the distal end cover 7 to realize and guide the axial movement of the outer locking sleeve 4 relative to the distal end cover 7.
此外，外锁套4还包括如下结构：In addition, the outer locking sleeve 4 also includes the following structure:
设置在细部42上的解锁槽405，具体地，解锁槽405设置两个，两个所述解锁槽405相对设置；解锁槽405相对于表面突起406更加靠近近端，且与表面突起406在周向错开设置；An unlocking groove 405 is provided on the detail 42. Specifically, two unlocking grooves 405 are provided. The two unlocking grooves 405 are arranged opposite to each other. The unlocking groove 405 is closer to the proximal end than the surface protrusion 406, and is staggered with the surface protrusion 406 in the circumferential direction.
设置在粗部41上的导向突起404，具体地，导向突起404设置两个，两个所述导向突起404相对设置；导向突起404可以限制外锁套4相对于外壳13沿周向的旋转，具体地，外锁套4安装在外壳13中后，导向突起404设置在外壳13内部设置的滑槽或轨道里，该滑槽或轨道的周向尺寸与导向突起404相适配，进而限制外锁套4沿周向的旋转。外锁套4的导向突起404与外壳13内的滑槽或轨道131的一个具体配合结构如图7所示；The guide protrusion 404 is provided on the thick portion 41. Specifically, two guide protrusions 404 are provided, and the two guide protrusions 404 are arranged opposite to each other; the guide protrusion 404 can limit the circumferential rotation of the outer locking sleeve 4 relative to the outer shell 13. Specifically, after the outer locking sleeve 4 is installed in the outer shell 13, the guide protrusion 404 is provided in a slide groove or track provided inside the outer shell 13. The circumferential size of the slide groove or track is adapted to the guide protrusion 404, thereby limiting the circumferential rotation of the outer locking sleeve 4. A specific matching structure of the guide protrusion 404 of the outer locking sleeve 4 and the slide groove or track 131 in the outer shell 13 is shown in FIG. 7;
设置在粗部41上的滑槽403，具体地，滑槽403设置两个，两个所述滑槽403相对设置；在图6中，滑槽403具体呈T字形；滑槽403用于容置齿槽1的卡扣特征103，进而将齿槽1固定于外锁套4，使两者不能发生相对旋转；A slide groove 403 is provided on the thick portion 41. Specifically, two slide grooves 403 are provided, and the two slide grooves 403 are arranged opposite to each other. In FIG. 6 , the slide groove 403 is specifically T-shaped. The slide groove 403 is used to accommodate the buckle feature 103 of the tooth groove 1, thereby fixing the tooth groove 1 to the outer locking sleeve 4 so that the two cannot rotate relative to each other.
设置在粗部41上的复位止档402，具体地，复位止档402设置两个，两个所述复位止档402相对设置；在图6中，复位止档402是由呈L形的孔形成的挡块，所述L形孔的其中一段的一端沿轴向向外连通，所述L形孔的另一段位于所述复位止档402的远端；A reset stopper 402 is provided on the thick portion 41. Specifically, two reset stoppers 402 are provided, and the two reset stoppers 402 are arranged opposite to each other. In FIG. 6 , the reset stopper 402 is a stopper formed by an L-shaped hole, one end of one section of the L-shaped hole is connected outwardly along the axial direction, and the other section of the L-shaped hole is located at the distal end of the reset stopper 402.
设置在粗部41上的触发面401，具体地，触发面401为V型槽的内表面，触发面401在粗部41的相对的方向设置两个；A trigger surface 401 is provided on the thick portion 41. Specifically, the trigger surface 401 is an inner surface of the V-shaped groove. Two trigger surfaces 401 are provided in opposite directions of the thick portion 41.
设置在粗部41的内表面的两根限位条407，两根限位条407相对设置。限位条407用于与复位锁套3的大口径部31的底面边缘的两个卡槽311配合，实现外锁套4与复位锁套3沿轴线相对转动的锁定与解锁。具体地，在自动注射装置安装完成后的原始状态下，外锁套4的限位条407卡在复位锁套3的卡槽311内，阻止了复位锁套3与外锁套4之间的相对旋转；而在外锁套4被触发力按压沿轴向向靠近远端端盖7的方向移动时，复位锁套3的复位斜面302在一段时间后继而被触发力按压触发，此时随着外锁套4的轴向移动，限位条407脱离了卡槽311，进而复位锁套3能够在触发力的作用下相对于外锁套4沿周向旋转。Two limiting strips 407 are arranged on the inner surface of the thick portion 41, and the two limiting strips 407 are arranged opposite to each other. The limiting strips 407 are used to cooperate with the two card slots 311 on the bottom edge of the large-diameter portion 31 of the reset lock sleeve 3 to realize the locking and unlocking of the outer lock sleeve 4 and the reset lock sleeve 3 relative to each other along the axis. Specifically, in the original state after the automatic injection device is installed, the limiting strip 407 of the outer lock sleeve 4 is stuck in the card slot 311 of the reset lock sleeve 3, preventing the relative rotation between the reset lock sleeve 3 and the outer lock sleeve 4; and when the outer lock sleeve 4 is pressed by the trigger force to move axially toward the distal end cover 7, the reset inclined surface 302 of the reset lock sleeve 3 is then pressed and triggered by the trigger force after a period of time. At this time, with the axial movement of the outer lock sleeve 4, the limiting strip 407 is separated from the card slot 311, and then the reset lock sleeve 3 can rotate circumferentially relative to the outer lock sleeve 4 under the action of the trigger force.
请参见图8，为推杆5的立体结构示意图，推杆5为一端开口且具有内腔的圆柱体状。Please refer to FIG8 , which is a schematic diagram of the three-dimensional structure of the push rod 5 . The push rod 5 is in the shape of a cylinder with an open end and an inner cavity.
如图8所示，推杆5具有端面特征501，端面特征501为与齿槽1的端面孔101匹配的非圆形，从图8可见，该端面特征501的形状沿推杆5的长度方向延伸，覆盖了推杆5的大部分，这样的结构设置实现了齿槽1与推杆5非圆形的孔轴配合，进而使得齿槽1能够通过端面孔101限制推杆5在进给时不能进行旋转运动，使推杆5只能沿轴向执行平移运动。推杆5与齿槽1的端面配合见图9。As shown in FIG8 , the push rod 5 has an end face feature 501, which is a non-circular shape matching the end face hole 101 of the tooth groove 1. As can be seen from FIG8 , the shape of the end face feature 501 extends along the length direction of the push rod 5, covering most of the push rod 5. Such a structural setting realizes the non-circular hole-axis matching of the tooth groove 1 and the push rod 5, thereby enabling the tooth groove 1 to limit the push rod 5 from rotating during feeding through the end face hole 101, so that the push rod 5 can only perform translational movement along the axial direction. The end face matching of the push rod 5 and the tooth groove 1 is shown in FIG9 .
如图8所示，推杆5的外表面具有两条向内凹的螺旋轨道502，并且两条螺旋轨道502在推杆5的外表面为180度对称布置；螺旋轨道502用于与齿环2的滑块突起202配合，实现在推杆5沿轴向移动时，带动齿环2发生周向旋转，进而使齿环2相对于齿槽1发生旋转，齿环2的弹性臂201的拨齿部2011在齿槽1的周向齿槽102内旋转并碰撞周向齿槽102而发声，实现推杆5进给过程中的声音反馈功能。推杆5与齿环2的配合示意图见图9。As shown in FIG8 , the outer surface of the push rod 5 has two inwardly concave spiral tracks 502, and the two spiral tracks 502 are arranged 180 degrees symmetrically on the outer surface of the push rod 5; the spiral tracks 502 are used to cooperate with the slider protrusion 202 of the gear ring 2, so that when the push rod 5 moves along the axial direction, the gear ring 2 is driven to rotate circumferentially, and then the gear ring 2 is rotated relative to the tooth groove 1, and the tooth-pick portion 2011 of the elastic arm 201 of the gear ring 2 rotates in the circumferential tooth groove 102 of the tooth groove 1 and collides with the circumferential tooth groove 102 to make a sound, thereby realizing the sound feedback function during the feeding process of the push rod 5. The schematic diagram of the cooperation between the push rod 5 and the gear ring 2 is shown in FIG9 .
请再次参见图8，推杆5在靠近远端的部分设有两个对称的通孔503，该通孔503用于与内锁套6的相应结构配合，实现在原始状态下的锁定以及在触发状态下的解锁。并且，所述通孔503在远端一侧的内表面为斜面，该斜面的倾斜方向便于推杆5被沿轴向推出。Please refer to Fig. 8 again, the push rod 5 is provided with two symmetrical through holes 503 near the distal end, and the through holes 503 are used to cooperate with the corresponding structure of the inner locking sleeve 6 to achieve locking in the original state and unlocking in the triggered state. In addition, the inner surface of the through hole 503 on the distal end side is an inclined surface, and the inclined direction of the inclined surface facilitates the push rod 5 to be pushed out axially.
请参见图10，为内锁套6的结构示意图。Please refer to FIG. 10 , which is a schematic structural diagram of the inner locking sleeve 6 .
如图10所示，内锁套6向内凸设有两个突起特征部601，这两个突起特征部601相对设置，每个突起特征部601分别设置在一杆件61上，每个杆件61的周围具有空置槽60。内锁套6的每个突起特征部601与推杆5的通孔503对应配合。自动注射装置在原始状态下，内锁套6的每个突起特征部601插入推杆5的对应通孔503内，从而将推杆5固定于内锁套6，而内锁套6的突起特征部61同时被其外套设的外锁套4限制而不能发生周向扩张，进而使进给弹簧9不能推动推杆5沿轴向移动。更优地，内锁套6的每个突起特征部601面向所述远端端盖7的一表面为与进给弹簧9的推动方向成角度的斜面，具体为近端低远端高的斜面，所述推杆5上的所述通孔503的斜面与内锁套6的突起特征部601的斜面相贴合。此种设置便于在触发状态下，进给弹簧9推动推杆5沿轴向向近端进给。As shown in FIG. 10 , the inner locking sleeve 6 is provided with two protruding features 601 protruding inwardly, and the two protruding features 601 are arranged opposite to each other, and each protruding feature 601 is respectively arranged on a rod 61, and each rod 61 has an empty groove 60 around it. Each protruding feature 601 of the inner locking sleeve 6 is matched with the through hole 503 of the push rod 5. In the original state of the automatic injection device, each protruding feature 601 of the inner locking sleeve 6 is inserted into the corresponding through hole 503 of the push rod 5, thereby fixing the push rod 5 to the inner locking sleeve 6, and the protruding feature 61 of the inner locking sleeve 6 is simultaneously restricted by the outer locking sleeve 4 arranged outside it and cannot expand circumferentially, so that the feed spring 9 cannot push the push rod 5 to move axially. More preferably, a surface of each protruding feature 601 of the inner locking sleeve 6 facing the distal end cover 7 is an inclined surface at an angle to the pushing direction of the feed spring 9, specifically, an inclined surface with a lower proximal end and a higher distal end, and the inclined surface of the through hole 503 on the push rod 5 fits with the inclined surface of the protruding feature 601 of the inner locking sleeve 6. This arrangement facilitates the feed spring 9 to push the push rod 5 to feed axially toward the proximal end in the triggered state.
请再次参见图10，内锁套6的远端具有末端突起602，末端突起602设置有两个，且两个末端突起602相对设置。内锁套6通过两个末端突起602可拆卸式连接在远端端盖7上。Please refer to Fig. 10 again, the distal end of the inner locking sleeve 6 has a terminal protrusion 602, and two terminal protrusions 602 are provided, and the two terminal protrusions 602 are arranged opposite to each other. The inner locking sleeve 6 is detachably connected to the distal end cover 7 through the two terminal protrusions 602.
请参见图11，为远端端盖7的结构示意图。Please refer to FIG. 11 , which is a schematic structural diagram of the distal end cover 7 .
远端端盖7具有如下结构：The distal end cover 7 has the following structure:
基底71，在图11中为一圆板状；The base 71 is a circular plate in FIG11 ;
圆筒部72，为沿基底71的一表面垂直向外延伸形成的，并且圆筒部72的中心轴与远端端盖7的中心轴一致；该圆筒部72上设置有滑槽702，具体地，设置两个滑槽702，并且两个滑槽702相对设置；滑槽702用于与外锁套4的表面突起406配合，将外锁套4的表面突起406设置于远端端盖7对应位置的滑槽702内，即实现了外锁套4与远端端盖7的相互连接；并且，表面突起406能够在滑槽702内沿轴向滑动。更优地，表面突起406沿外锁套4周向的长度与滑槽702沿远端端盖7周向的长度相匹配，因此起到了引导移动的作用，并且防止外锁套4与远端端盖7相对的周向旋转；The cylindrical portion 72 is formed by extending vertically outward along a surface of the base 71, and the central axis of the cylindrical portion 72 is consistent with the central axis of the distal end cover 7; a slide groove 702 is provided on the cylindrical portion 72, specifically, two slide grooves 702 are provided, and the two slide grooves 702 are arranged opposite to each other; the slide groove 702 is used to cooperate with the surface protrusion 406 of the outer locking sleeve 4, and the surface protrusion 406 of the outer locking sleeve 4 is arranged in the slide groove 702 at the corresponding position of the distal end cover 7, that is, the outer locking sleeve 4 and the distal end cover 7 are connected to each other; and the surface protrusion 406 can slide axially in the slide groove 702. More preferably, the length of the surface protrusion 406 along the circumference of the outer locking sleeve 4 matches the length of the slide groove 702 along the circumference of the distal end cover 7, thereby playing a role in guiding movement and preventing the outer locking sleeve 4 and the distal end cover 7 from rotating relative to each other in the circumferential direction;
末端槽703，设置在圆筒部72的底部位置与基底71相接处；按照图11中所示，末端槽703设置两个(另一个末端槽在图中视角不可见)，两个所述末端槽703相对设置；在图11中，每个末端槽703还包括设置在槽体两侧的凸起703a；The terminal groove 703 is arranged at the bottom of the cylindrical portion 72 and the junction with the base 71; as shown in FIG11 , two terminal grooves 703 are arranged (the other terminal groove is not visible in the view angle of the figure), and the two terminal grooves 703 are arranged opposite to each other; in FIG11 , each terminal groove 703 further includes protrusions 703a arranged on both sides of the groove body;
中心杆701，沿远端端盖7的轴心方向设置，一端固定于远端端盖7的基底71上，另一端为自由端；并且，中心杆701位于圆筒部72内部；The center rod 701 is arranged along the axial direction of the distal end cover 7, one end of which is fixed on the base 71 of the distal end cover 7, and the other end is a free end; and the center rod 701 is located inside the cylindrical portion 72;
悬臂突起704，突出设置在圆筒部72的外表面，并且具有钩部，在图11所示的结构中，共设置两个悬臂突起704，两个所述悬臂突起704相背设置；远端端盖7通过两个悬臂突起704与外壳13固定连接，悬臂突起704可以限制远端端盖7与外壳13的轴向分离。悬臂突起704与外壳13固定连接的一个具体结构可以如图12所示，通过将远端端盖7的悬臂突起704设置在外壳13的卡槽130之内来限制远端端盖7与外壳13的轴向分离。The cantilever protrusion 704 is protrudingly arranged on the outer surface of the cylindrical portion 72 and has a hook portion. In the structure shown in FIG11 , two cantilever protrusions 704 are arranged in total, and the two cantilever protrusions 704 are arranged opposite to each other. The distal end cover 7 is fixedly connected to the housing 13 through the two cantilever protrusions 704, and the cantilever protrusion 704 can limit the axial separation of the distal end cover 7 from the housing 13. A specific structure of the cantilever protrusion 704 fixedly connected to the housing 13 can be shown in FIG12 , and the axial separation of the distal end cover 7 from the housing 13 is limited by setting the cantilever protrusion 704 of the distal end cover 7 in the slot 130 of the housing 13.
请参见图13，为复位弹簧8的结构示意图。Please refer to FIG. 13 , which is a schematic diagram of the structure of the return spring 8 .
复位弹簧8为内腔较粗的弹簧，便于套在远端端盖7的圆筒部72和外锁套4的细部42的外部，同时复位弹簧8的两端分别抵在远端端盖7和外锁套4的端面上，原始状态下复位弹簧8被压缩而蓄能，对外锁套4和远端端盖7产生挤压力；在外锁套4被触发力沿轴向挤压而触发后，复位弹簧8能够被进一步压缩蓄能，进而在触发力去除后，复位弹簧8能够推动外锁套4复位。The return spring 8 is a spring with a thicker inner cavity, which is convenient for being put on the outside of the cylindrical portion 72 of the distal end cover 7 and the thin portion 42 of the outer locking sleeve 4. At the same time, the two ends of the return spring 8 respectively abut against the end faces of the distal end cover 7 and the outer locking sleeve 4. In the original state, the return spring 8 is compressed and stores energy, generating an extrusion force on the outer locking sleeve 4 and the distal end cover 7; after the outer locking sleeve 4 is triggered by the trigger force along the axial direction, the return spring 8 can be further compressed and store energy, and then after the trigger force is removed, the return spring 8 can push the outer locking sleeve 4 to reset.
请参见图14，为进给弹簧9的结构示意图。Please refer to FIG. 14 , which is a schematic structural diagram of the feed spring 9 .
进给弹簧9为内腔较细的弹簧，而且长度比复位弹簧8更长。进给弹簧9安装后套设在远端端盖7的中心杆701上，并位于推杆5的内腔内，一端抵在远端端盖7的位于中心杆701周围的基底71的部分上，另一端抵在推杆5的端面的内表面，原始状态下进给弹簧9被压缩而蓄能，便于实现对推杆5的推动进而实现该自动注射装置的自动进给功能。The feed spring 9 is a spring with a thinner inner cavity and is longer than the return spring 8. After installation, the feed spring 9 is sleeved on the central rod 701 of the distal end cover 7 and is located in the inner cavity of the push rod 5, with one end abutting against the portion of the base 71 of the distal end cover 7 located around the central rod 701, and the other end abutting against the inner surface of the end face of the push rod 5. In the original state, the feed spring 9 is compressed and stores energy, which facilitates the pushing of the push rod 5 and thus realizes the automatic feeding function of the automatic injection device.
请参见图15，为注射器10的结构示意图。Please refer to FIG. 15 , which is a schematic structural diagram of the syringe 10 .
注射器10包括针筒10a、针头套10b，及与针筒10a连通并位于针头套10b之内的针头(针头在图15的视角不可见)。针头套10b上设有若干方形及长条形的通孔。The syringe 10 comprises a syringe 10a, a needle cover 10b, and a needle connected to the syringe 10a and located in the needle cover 10b (the needle is not visible in the viewing angle of Figure 15). The needle cover 10b is provided with a plurality of square and long through holes.
请参见图16，为近端端帽11的结构示意图。Please refer to FIG. 16 , which is a schematic structural diagram of the proximal end cap 11 .
近端端帽11的大体形状为圆柱体，其内部具有空腔，且一端具有端面，另一端为敞口。The proximal end cap 11 is generally in the shape of a cylinder with a cavity inside, an end surface at one end and an open end at the other end.
如图16所示，近端端帽11在端面的内表面设有两个相对的突起1101，两个突起1101用于分别扣合在触发套筒12的对应凹槽里面，确保近端端帽11与触发套筒12嵌套牢固。As shown in FIG. 16 , the inner surface of the end face of the proximal end cap 11 is provided with two opposite protrusions 1101 , and the two protrusions 1101 are used to respectively engage in corresponding grooves of the trigger sleeve 12 to ensure that the proximal end cap 11 and the trigger sleeve 12 are firmly nested.
近端端帽11的内腔中还从端面内表面延伸出两个卡扣1102，每个卡扣1102用于对应扣合在注射器10的方形通孔内，实现近端端帽11与注射器10之间的固定及连接。Two buckles 1102 extend from the inner surface of the end face in the inner cavity of the proximal end cap 11 , and each buckle 1102 is used to correspondingly fit into the square through hole of the syringe 10 to achieve fixation and connection between the proximal end cap 11 and the syringe 10 .
请参见图17，为触发套筒12的结构示意图。Please refer to FIG. 17 , which is a schematic structural diagram of the trigger sleeve 12 .
触发套筒12包括一空心圆柱体部分及从该空心圆柱体部分的一端延伸出的两个相对的触发杆。The trigger sleeve 12 includes a hollow cylindrical portion and two opposite trigger rods extending from one end of the hollow cylindrical portion.
所述空心圆柱体部分的端部附近的内表面具有凹槽1202，凹槽1202设置两个，分别与近端端帽11的两个突起1101相配合扣合，确保近端端帽11与触发套筒12嵌套牢固。The inner surface near the end of the hollow cylindrical part has a groove 1202 , and two grooves 1202 are provided, which respectively cooperate with the two protrusions 1101 of the proximal end cap 11 to ensure that the proximal end cap 11 and the trigger sleeve 12 are firmly nested.
在触发套筒12的每个触发杆的中部设有卡扣1201，卡扣1201用于与外壳13的相应结构配合，避免触发套筒12安装在外壳13里面后掉出来。A buckle 1201 is provided in the middle of each trigger rod of the trigger sleeve 12 , and the buckle 1201 is used to cooperate with the corresponding structure of the housing 13 to prevent the trigger sleeve 12 from falling out after being installed in the housing 13 .
触发套筒12的每个触发杆还具有触发端1203。Each trigger rod of the trigger sleeve 12 also has a trigger end 1203 .
请参见图18及图19，为外壳13的立体结构示意图及内部结构示意图。Please refer to FIG. 18 and FIG. 19 , which are schematic diagrams of the three-dimensional structure and the internal structure of the shell 13 .
外壳13整体为圆筒形，并且两端开口；外壳13的一端部附近具有相对设置的两个卡槽130，用于与远端端盖7的悬臂突起704配合，将远端端盖7与外壳13相互固定。该端部还设有滑槽131，用于与外锁套4的导向突起404配合。The housing 13 is cylindrical in shape and open at both ends. Two oppositely arranged slots 130 are provided near one end of the housing 13 for cooperating with the cantilever protrusion 704 of the distal end cover 7 to fix the distal end cover 7 and the housing 13 to each other. The end is also provided with a slide groove 131 for cooperating with the guide protrusion 404 of the outer locking sleeve 4.
外壳13内部具有相对设置的两个挡板特征部1301(如图19所示)，用于与触发套筒12的卡扣1201配合，在触发套筒12安装于外壳13之后，触发套筒12的卡扣1201被外壳13内部的挡板特征部1301限制，进而可以避免触发套筒12安装在外壳13里面之后掉出来。The shell 13 has two baffle feature parts 1301 (as shown in FIG. 19 ) arranged opposite to each other inside, which are used to cooperate with the buckle 1201 of the trigger sleeve 12. After the trigger sleeve 12 is installed in the shell 13, the buckle 1201 of the trigger sleeve 12 is restricted by the baffle feature part 1301 inside the shell 13, thereby preventing the trigger sleeve 12 from falling out after being installed in the shell 13.
外壳13在与卡槽130的设置端相反的另一端附近还设有相对布置的两个开口1302。The housing 13 is further provided with two openings 1302 arranged opposite to each other near the other end opposite to the end where the card slot 130 is provided.
以下说明本实施例的自动注射装置的安装方法。The following describes the installation method of the automatic injection device of this embodiment.
请参见图20，为本实施例的自动注射装置在原始状态的轴向剖视图。Please refer to FIG. 20 , which is an axial cross-sectional view of the automatic injection device of this embodiment in an original state.
在图20中，布置于自动注射装置两端的零件分别为近端端帽11和远端端盖7，定义近端端帽11所处位置为近端，定义远端端盖7所处位置为远端。所述近端为自动注射装置的执行端，用于接收外部触发力或触发发声，从而释放内部蓄能。所述远端为自动注射装置的操作端，手持部分位于装置远端外表面，远端位置内部布置了与触发、复位、锁定、蓄能、发声反馈功能相关的主要零部件。In Figure 20, the parts arranged at both ends of the automatic injection device are the proximal end cap 11 and the distal end cap 7, respectively. The position of the proximal end cap 11 is defined as the proximal end, and the position of the distal end cap 7 is defined as the distal end. The proximal end is the execution end of the automatic injection device, which is used to receive external triggering force or trigger sound, thereby releasing the internal stored energy. The distal end is the operating end of the automatic injection device, and the handheld part is located on the outer surface of the distal end of the device. The main components related to the triggering, resetting, locking, energy storage, and sound feedback functions are arranged inside the distal end.
对于本实施例的自动注射装置而言，进给弹簧9、推杆5、齿环2、齿槽1、复位锁套3、内锁套6、外锁套4、复位弹簧8、远端端盖7共同安装形成一个驱动组件A，触发套筒12、近端端帽11、外壳13共同安装形成一个外壳组件B，注射器10称为一个注射器C，因此，自动注射装置就由1个驱动组件A、1个外壳组件B、1个注射器C组合而成。For the automatic injection device of this embodiment, the feed spring 9, the push rod 5, the gear ring 2, the tooth groove 1, the reset lock sleeve 3, the inner lock sleeve 6, the outer lock sleeve 4, the reset spring 8, and the distal end cover 7 are installed together to form a drive component A, the trigger sleeve 12, the proximal end cap 11, and the outer shell 13 are installed together to form a shell component B, and the syringe 10 is called a syringe C. Therefore, the automatic injection device is composed of 1 drive component A, 1 shell component B, and 1 syringe C.
请参见图21，驱动组件A的安装方法为：Please refer to Figure 21. The installation method of drive component A is as follows:
复位锁套3、齿槽1、齿环2从近端方向依次安装在外锁套4的近端内孔中；The reset lock sleeve 3, the tooth groove 1, and the tooth ring 2 are sequentially installed in the proximal inner hole of the outer lock sleeve 4 from the proximal direction;
推杆5、内锁套6从远端安装在外锁套4的远端内孔中；The push rod 5 and the inner locking sleeve 6 are installed in the inner hole at the distal end of the outer locking sleeve 4 from the distal end;
然后，依次从远端将复位弹簧8嵌套在外锁套4的细部42的外表面，将进给弹簧9嵌套进推杆5的内孔中；Then, the return spring 8 is nested in the outer surface of the thin part 42 of the outer lock sleeve 4 from the far end, and the feed spring 9 is nested in the inner hole of the push rod 5;
最后，从远端安装远端端盖7。Finally, the distal end cap 7 is installed from the distal end.
如图21所示，当远端端盖7安装到位后，外锁套4的表面突起406与远端端盖7的滑槽702扣合，内锁套6的末端突起602与远端端盖7的末端槽703扣合，此时，复位弹簧8被压缩在外锁套4与远端端盖7之间，进给弹簧9被压缩在推杆5和远端端盖7之间，在复位弹簧8和进给弹簧9张力作用下，内锁套6的末端突起602与远端端盖7的末端槽703扣合紧密，外锁套4的表面突起406和远端端盖7的滑槽702扣合紧密。As shown in Figure 21, when the distal end cover 7 is installed in place, the surface protrusion 406 of the outer locking sleeve 4 is engaged with the slide groove 702 of the distal end cover 7, and the end protrusion 602 of the inner locking sleeve 6 is engaged with the end groove 703 of the distal end cover 7. At this time, the reset spring 8 is compressed between the outer locking sleeve 4 and the distal end cover 7, and the feed spring 9 is compressed between the push rod 5 and the distal end cover 7. Under the tension of the reset spring 8 and the feed spring 9, the end protrusion 602 of the inner locking sleeve 6 is tightly engaged with the end groove 703 of the distal end cover 7, and the surface protrusion 406 of the outer locking sleeve 4 is tightly engaged with the slide groove 702 of the distal end cover 7.
具体地，复位弹簧8的一端抵在外锁套4的粗部41的端部，另一端设置在远端端盖7的悬臂突起704的内表面与圆筒部72之间的空间内，如图24所示，并请结合图11。Specifically, one end of the return spring 8 abuts against the end of the thick portion 41 of the outer locking sleeve 4, and the other end is arranged in the space between the inner surface of the cantilever protrusion 704 of the distal end cover 7 and the cylindrical portion 72, as shown in FIG. 24, and please refer to FIG. 11.
具体地，如图21所示，内锁套6靠近远端端盖7的一段与远端端盖7的圆筒部72的筒壁之间具有一环形空间(请结合图11)，在外锁套4向远端端盖7移动时，所述环形空间为移动后的外锁套4的细部42的端部一段提供容纳空间，从而配合实现所述外锁套4在远端端盖7内的滑动。Specifically, as shown in Figure 21, there is an annular space between a section of the inner locking sleeve 6 close to the distal end cover 7 and the wall of the cylindrical portion 72 of the distal end cover 7 (please refer to Figure 11). When the outer locking sleeve 4 moves toward the distal end cover 7, the annular space provides an accommodating space for a section of the end of the thin portion 42 of the outer locking sleeve 4 after movement, thereby cooperating to achieve the sliding of the outer locking sleeve 4 in the distal end cover 7.
具体地，推杆5穿过外锁套4、复位锁套3、齿槽1、齿环2套设后形成的中心孔，并且推杆5的近端露出在外锁套4、复位锁套3、齿槽1、齿环2套设后形成的组件的近端之外。结合图20及上述各零部件的说明，可见推杆5由远端向近端依次穿过内锁套6、复位锁套3的小口径部32、齿环2的内孔203、齿槽1的端面孔101，其近端露出外锁套4之外。Specifically, the push rod 5 passes through the center hole formed by the outer locking sleeve 4, the reset locking sleeve 3, the tooth groove 1, and the tooth ring 2, and the proximal end of the push rod 5 is exposed outside the proximal end of the assembly formed by the outer locking sleeve 4, the reset locking sleeve 3, the tooth groove 1, and the tooth ring 2. Combined with Figure 20 and the description of the above-mentioned components, it can be seen that the push rod 5 passes through the inner locking sleeve 6, the small-diameter portion 32 of the reset locking sleeve 3, the inner hole 203 of the tooth ring 2, and the end hole 101 of the tooth groove 1 in sequence from the distal end to the proximal end, and its proximal end is exposed outside the outer locking sleeve 4.
由此，在原始状态下，驱动组件A具备自我锁定的功能，同时，由于复位弹簧8和进给弹簧9在驱动组件A锁定功能下被压缩，因此驱动组件A也具备蓄能的功能。这将对自动注射装置后续触发、复位、发声反馈等时序功能的实现产生有益效果。Thus, in the original state, the drive assembly A has a self-locking function, and at the same time, because the reset spring 8 and the feed spring 9 are compressed under the locking function of the drive assembly A, the drive assembly A also has an energy storage function. This will have a beneficial effect on the realization of subsequent timing functions such as triggering, resetting, and sound feedback of the automatic injection device.
请参见图22，为外壳组件B的剖面图。结合图22，说明自动注射装置的外壳组件B的安装方法如下：Please refer to Figure 22, which is a cross-sectional view of the housing component B. In conjunction with Figure 22, the installation method of the housing component B of the automatic injection device is described as follows:
图22中，触发套筒12从近端方向安装在外壳13的内孔中，在安装到位后，触发套筒12的卡扣1201被外壳13内部的挡板特征部1301限制，可以避免触发套筒12安装在外壳13里面后掉出来。In FIG. 22 , the trigger sleeve 12 is installed in the inner hole of the housing 13 from the proximal direction. After being installed in place, the buckle 1201 of the trigger sleeve 12 is restricted by the baffle feature 1301 inside the housing 13, which can prevent the trigger sleeve 12 from falling out after being installed inside the housing 13.
然后，近端端帽11从近端方向嵌套安装在触发套筒12的外表面，在安装过程中，近端端帽11的突起1101会扣合在触发套筒12的凹槽1202里面，这样可以确保近端端帽11与触发套筒12嵌套牢固。Then, the proximal end cap 11 is nested and installed on the outer surface of the trigger sleeve 12 from the proximal direction. During the installation process, the protrusion 1101 of the proximal end cap 11 will be snapped into the groove 1202 of the trigger sleeve 12, so as to ensure that the proximal end cap 11 and the trigger sleeve 12 are firmly nested.
图23为注射器C的剖面结构示意图。FIG23 is a schematic diagram of the cross-sectional structure of syringe C. FIG.
图24为自动注射装置原始状态下相对于图20围绕轴向旋转90度的剖面图。FIG. 24 is a cross-sectional view of the automatic injection device in its original state, rotated 90 degrees about the axis relative to FIG. 20 .
请结合参见图20和图24，当驱动组件A、外壳组件B组装完成后，将注射器C从外壳13的远端装入，之后将驱动组件A从外壳13的远端装入，远端端盖7的悬臂突起704卡在外壳13的卡槽130中，实现了驱动组件A在外壳组件B上的安装，进而也完成了自动注射装置的安装。Please refer to Figures 20 and 24. When the drive component A and the housing component B are assembled, the syringe C is installed from the distal end of the housing 13, and then the drive component A is installed from the distal end of the housing 13. The cantilever protrusion 704 of the distal end cover 7 is stuck in the slot 130 of the housing 13, thereby realizing the installation of the drive component A on the housing component B, and thus completing the installation of the automatic injection device.
自动注射装置的触发、复位、锁定、蓄能、发声反馈功能是通过在具体的任务完成过程中得以清楚的体现。具体的任务过程包括但不限于原始状态、触发状态、运行状态、结束状态。自动注射装置通过不同的功能组合，从而完成既定的上述任务。自动注射装置的不同功能伴随任务完成过程的详述如下。The triggering, resetting, locking, energy storage, and voice feedback functions of the automatic injection device are clearly reflected in the specific task completion process. The specific task process includes but is not limited to the original state, trigger state, running state, and end state. The automatic injection device completes the above-mentioned tasks through different functional combinations. The different functions of the automatic injection device are detailed as follows.
当自动注射装置处于原始状态时，装置具备锁定和蓄能功能，详见图20和图24所示，其中图20为自动注射装置在原始状态下的轴向剖面图。图24为自动注射装置围绕轴向旋转90度的剖面图。When the automatic injection device is in the original state, the device has the locking and energy storage functions, as shown in Figures 20 and 24, wherein Figure 20 is an axial cross-sectional view of the automatic injection device in the original state, and Figure 24 is a cross-sectional view of the automatic injection device rotated 90 degrees around the axis.
如图24所示，本实施例的自动注射装置的特别之处至少在于，远端端盖7、外锁套4、内锁套6、推杆5为轴向套设，在推杆5的外表面上设置的两个对称的通孔503，分别与内锁套6上向内设置的两个突起特征601配合。在自动注射装置的锁定和蓄能状态(即原始状态)下，进给弹簧9有带动推杆5一起向近端运动的趋势，而在外锁套4的远端内孔中，内锁套6的突起特征601被外锁套4限制无法在进给弹簧9的作用下周向扩张，因此推杆5的通孔503被突起特征601限制，因此在锁定状态下自动注射装置不会因为受到冲击、振动等环境干扰而被误触发，大大增强了该自动注射装置的稳定性。As shown in FIG. 24 , the special feature of the automatic injection device of this embodiment is at least that the distal end cover 7, the outer locking sleeve 4, the inner locking sleeve 6, and the push rod 5 are axially sleeved, and the two symmetrical through holes 503 provided on the outer surface of the push rod 5 are respectively matched with the two protruding features 601 provided inwardly on the inner locking sleeve 6. In the locked and energy-storing state (i.e., the original state) of the automatic injection device, the feed spring 9 has a tendency to drive the push rod 5 to move toward the proximal end together, and in the distal inner hole of the outer locking sleeve 4, the protruding features 601 of the inner locking sleeve 6 are restricted by the outer locking sleeve 4 and cannot expand circumferentially under the action of the feed spring 9, so the through hole 503 of the push rod 5 is restricted by the protruding features 601, so that in the locked state, the automatic injection device will not be triggered by mistake due to environmental interference such as impact and vibration, which greatly enhances the stability of the automatic injection device.
本实施例的自动注射装置的特别之处还在于，自动注射装置所具备的发声反馈功能是一种发声功能，是在具体的运行状态中得以体现的。当自动注射装置被触发后，会进入运行状态，自动注射装置会不断的发出“哒哒”声音。具体的，发声反馈功能在图20所示的组成部分中，是通过布置在自动注射装置中的齿槽1和齿环2共同作用实现的，发出“哒哒”的声音效果是通过齿环2的弹性臂201的拨齿部2011对齿槽1的周向齿槽102机械碰撞产生的。具体的发声机理将在自动注射装置运行状态时进行详细描述。The special feature of the automatic injection device of this embodiment is that the sound feedback function of the automatic injection device is a sound function, which is reflected in the specific operating state. When the automatic injection device is triggered, it will enter the operating state, and the automatic injection device will continuously emit a "click" sound. Specifically, the sound feedback function is realized by the joint action of the tooth groove 1 and the tooth ring 2 arranged in the automatic injection device in the components shown in Figure 20, and the "click" sound effect is generated by the mechanical collision of the tooth part 2011 of the elastic arm 201 of the tooth ring 2 with the circumferential tooth groove 102 of the tooth groove 1. The specific sound mechanism will be described in detail when the automatic injection device is in the operating state.
通过此种发声反馈功能，自动注射装置可以对外发出声音，此功能可作为人机交互或机内交互的接口功能，使自动注射装置的功能状态可以被使用者或者传感器监测，从而便于使用者进行后续的控制或决策执行。Through this vocal feedback function, the automatic injection device can make sounds to the outside. This function can be used as an interface function for human-computer interaction or intra-machine interaction, so that the functional status of the automatic injection device can be monitored by the user or sensor, thereby facilitating the user's subsequent control or decision execution.
在图20所述的安装状态下，齿槽1嵌套在外锁套4的内孔中，齿环2嵌套在齿槽1的内孔中。图25a和图25b示出了齿槽1和齿环2以及推杆5的具体配合关系，图中已去掉零件3、4、6、7、8、9、10、11、12、13。图25a的观察视角为从近端向远端观察，图25b为从远端向近端的内部观察视角。具体地，齿环2和推杆5为间隙配合，具体是图25a中齿环2的滑块突起202与推杆5的螺旋轨道502配合；齿槽1和齿环2为间隙配合，具体是图25b中的齿环2的弹性臂201与齿槽1的周向齿槽102的齿形互相配合，并且齿环2通过弹性臂201在齿槽1的周向齿槽102内张紧。In the installation state described in FIG20 , the tooth groove 1 is nested in the inner hole of the outer locking sleeve 4, and the tooth ring 2 is nested in the inner hole of the tooth groove 1. FIG25a and FIG25b show the specific matching relationship between the tooth groove 1, the tooth ring 2 and the push rod 5, and parts 3, 4, 6, 7, 8, 9, 10, 11, 12, and 13 have been removed in the figure. The viewing angle of FIG25a is from the proximal end to the distal end, and FIG25b is the internal viewing angle from the distal end to the proximal end. Specifically, the tooth ring 2 and the push rod 5 are clearance-matched, specifically, the slider protrusion 202 of the tooth ring 2 in FIG25a matches the spiral track 502 of the push rod 5; the tooth groove 1 and the tooth ring 2 are clearance-matched, specifically, the elastic arm 201 of the tooth ring 2 in FIG25b matches the tooth shape of the circumferential tooth groove 102 of the tooth groove 1, and the tooth ring 2 is tensioned in the circumferential tooth groove 102 of the tooth groove 1 through the elastic arm 201.
此外，在图25a中，推杆5的端面特征501与齿环1的端面孔101配合，并且由图20可知推杆5伸出齿环1的端面孔101并朝向近端，推杆5的端面特征501与齿环1的端面孔101为非圆形的孔轴配合。这样的配合形态有利于齿环1通过端面孔101限制推杆5的旋转运动，又由于齿环1固定在外锁套4上因而不能旋转，进而使推杆5只能沿轴向执行平移运动。In addition, in Fig. 25a, the end face feature 501 of the push rod 5 matches with the end face hole 101 of the gear ring 1, and it can be seen from Fig. 20 that the push rod 5 extends out of the end face hole 101 of the gear ring 1 and faces the proximal end, and the end face feature 501 of the push rod 5 matches with the end face hole 101 of the gear ring 1 as a non-circular hole axis. Such a matching form is conducive to the gear ring 1 limiting the rotational movement of the push rod 5 through the end face hole 101, and because the gear ring 1 is fixed on the outer locking sleeve 4 and cannot rotate, the push rod 5 can only perform translational movement along the axial direction.
图26a为推杆5的主视图，图中展示了推杆5的端面特征501和螺旋轨道502。需要特别注意的是，推杆5的外表面设有螺旋轨道502，并且螺旋轨道502在推杆5的外表面为180度对称布置，如图26b所示。Fig. 26a is a front view of the push rod 5, showing the end surface feature 501 and the spiral track 502 of the push rod 5. It should be noted that the outer surface of the push rod 5 is provided with a spiral track 502, and the spiral track 502 is arranged 180 degrees symmetrically on the outer surface of the push rod 5, as shown in Fig. 26b.
在原始状态下，发声反馈功能处于待命状态，并不会被触发。In the original state, the voice feedback function is in standby mode and will not be triggered.
通过对处于原始状态的自动注射装置的内部零件施加触发力，可以打破自动注射装置的原始状态，从而使自动注射装置完成一系列的时序动作。By applying a trigger force to the internal parts of the automatic injection device in the original state, the original state of the automatic injection device can be broken, so that the automatic injection device completes a series of sequential actions.
触发力的施加状态如图27所示，为了清楚描述触发力的传递，图27中移除了注射器10和近端端帽11。当触发套筒12受到来自外部的按压触发力时，触发套筒12的触发端1203(结合参见图17)将会顶着外锁套4的触发面401，然后触发套筒12和外锁套4一同沿着触发力的方向移动，从而打破自动注射装置的原始状态，进入触发状态。当装置处于触发状态时，自动注射装置会受到来自图27所示的外部触发力或触发发声，图28为自动注射装置触发状态的示意图。The state of applying the trigger force is shown in FIG27. In order to clearly describe the transmission of the trigger force, the syringe 10 and the proximal end cap 11 are removed from FIG27. When the trigger sleeve 12 is subjected to a pressing trigger force from the outside, the trigger end 1203 of the trigger sleeve 12 (see FIG17 in combination) will press against the trigger surface 401 of the outer locking sleeve 4, and then the trigger sleeve 12 and the outer locking sleeve 4 move together along the direction of the trigger force, thereby breaking the original state of the automatic injection device and entering the triggered state. When the device is in the triggered state, the automatic injection device will be subjected to an external trigger force or a trigger sound as shown in FIG27. FIG28 is a schematic diagram of the triggered state of the automatic injection device.
图28中，当外锁套4的触发面401受到触发力F时，外锁套4向远端移动并再次压缩复位弹簧8。在触发力F的持续作用下，复位弹簧8被压缩，触发套筒12和外锁套4一同沿着触发力的方向向远端移动，如图29所示。In FIG28 , when the trigger surface 401 of the outer locking sleeve 4 is subjected to the trigger force F, the outer locking sleeve 4 moves distally and compresses the reset spring 8 again. Under the continuous action of the trigger force F, the reset spring 8 is compressed, and the trigger sleeve 12 and the outer locking sleeve 4 move distally together along the direction of the trigger force, as shown in FIG29 .
在外锁套4向远端压缩复位弹簧8的过程中，自动注射装置将会打破锁定状态和蓄力状态。如图30所示，外锁套4的解锁槽405也随着外锁套4向远端轴向移动，当移动到图30位置时，外锁套4在解锁槽405的作用下，解除了图24中对内锁套6上突起特征601的周向扩张限制，此时进给弹簧9的蓄力将会向近端开始释放，推杆5的通孔503在进给弹簧9的推力作用下，把内锁套6上的突起特征601往周向顶开，如图30所示，当突起特征601被顶到解锁槽405内的时候，推杆5开始向近端移动，并推动药剂通过注射器10的针头向人体注射，此时需要持续维持触发力F，继续维持对复位弹簧8的压缩，直至进给弹簧9完全释放、把推杆5推到最终位置为止，释放最终位置如图31所示，自动注射装置实现推杆进给、药剂注射功能。When the outer locking sleeve 4 compresses the reset spring 8 toward the distal end, the automatic injection device will break the locking state and the power storage state. As shown in Figure 30, the unlocking groove 405 of the outer locking sleeve 4 also moves axially toward the distal end with the outer locking sleeve 4. When it moves to the position of Figure 30, the outer locking sleeve 4 releases the circumferential expansion restriction of the protruding feature 601 on the inner locking sleeve 6 in Figure 24 under the action of the unlocking groove 405. At this time, the stored force of the feed spring 9 will begin to be released toward the proximal end, and the through hole 503 of the push rod 5 pushes the protruding feature 601 on the inner locking sleeve 6 circumferentially under the thrust of the feed spring 9. As shown in Figure 30, when the protruding feature 601 is pushed into the unlocking groove 405, the push rod 5 begins to move toward the proximal end and pushes the medicine through the needle of the syringe 10 for injection into the human body. At this time, it is necessary to continue to maintain the trigger force F and continue to maintain the compression of the reset spring 8 until the feed spring 9 is completely released and the push rod 5 is pushed to the final position. The release of the final position is shown in Figure 31, and the automatic injection device realizes the push rod feeding and medicine injection functions.
在推杆5向近端平移的过程中，其上的螺旋轨道502也随着推杆5露出驱动组件A之外，如图32所示。During the process of the push rod 5 translating toward the proximal end, the spiral track 502 thereon is also exposed outside the drive assembly A along with the push rod 5 , as shown in FIG. 32 .
在图33a中，螺旋轨道502在推杆5向近端平移过程中驱动齿环2的滑块突起202发生旋转运动，当齿环2在齿槽1内旋转时，弹性臂201会发生弹性形变，刮擦齿槽1内部的周向齿槽102。从图33b中可看出，在推杆5向近端移动的过程中，齿环2绕轴向已经相对于图33a的原始位置发生了一定角度的转动，在转动过程中，弹性臂201通过刮擦齿槽1的周向齿槽102，从而发出声音，用来提示相关人员自动注射装置正在执行进给功能。In FIG33a, the spiral track 502 drives the slider protrusion 202 of the tooth ring 2 to rotate during the translation of the push rod 5 toward the proximal end. When the tooth ring 2 rotates in the tooth groove 1, the elastic arm 201 undergoes elastic deformation and scrapes the circumferential tooth groove 102 inside the tooth groove 1. As can be seen from FIG33b, during the movement of the push rod 5 toward the proximal end, the tooth ring 2 has rotated a certain angle around the axial direction relative to the original position of FIG33a. During the rotation, the elastic arm 201 scrapes the circumferential tooth groove 102 of the tooth groove 1, thereby making a sound to remind relevant personnel that the automatic injection device is performing the feeding function.
此时，安装在外锁套4内部的齿环2、齿槽1、复位锁套3、内锁套6在轴向上互相支撑，由图21可知，内锁套6的末端突起602与远端端盖7的末端槽703扣合，由图30可知，远端端盖7通过悬臂突起704与外壳13的卡槽130扣合，并且齿槽1抵在注射器10的端部，而齿环2设置在齿槽1内，齿槽1由于设置在复位锁套3的近端内孔因而其远端抵在复位锁套3的近端内孔底面上。因此当装置处于触发状态时，齿环2、齿槽1、复位锁套3、内锁套6不会随着推杆5发生轴向位移。At this time, the toothed ring 2, tooth groove 1, reset lock sleeve 3, and inner lock sleeve 6 installed inside the outer lock sleeve 4 support each other in the axial direction. As shown in FIG. 21, the terminal protrusion 602 of the inner lock sleeve 6 is engaged with the terminal groove 703 of the distal end cover 7. As shown in FIG. 30, the distal end cover 7 is engaged with the slot 130 of the housing 13 through the cantilever protrusion 704, and the tooth groove 1 is against the end of the syringe 10, and the toothed ring 2 is arranged in the tooth groove 1. Since the tooth groove 1 is arranged in the proximal inner hole of the reset lock sleeve 3, its distal end is against the bottom surface of the proximal inner hole of the reset lock sleeve 3. Therefore, when the device is in the triggered state, the toothed ring 2, tooth groove 1, reset lock sleeve 3, and inner lock sleeve 6 will not be axially displaced with the push rod 5.
当自动注射装置进给处于结束状态时，其具备复位、锁定和发声反馈功能。值得注意的是，自动注射装置的复位和锁定功能是时序功能，是在装置处于初始状态和触发状态时首先进行准备动作，进而在装置结束状态下自发完成最终实施的时序功能。When the automatic injection device is in the end state, it has the functions of reset, lock and sound feedback. It is worth noting that the reset and lock functions of the automatic injection device are timing functions, which are first prepared when the device is in the initial state and the trigger state, and then spontaneously complete the final implementation of the timing function when the device is in the end state.
自动注射装置的复位和锁定功能主要通过外锁套4和复位锁套3实现。The resetting and locking functions of the automatic injection device are mainly realized by the outer locking sleeve 4 and the resetting locking sleeve 3 .
在触发状态时，触发力F除了作用在外锁套4的触发面401上，也会作用在复位锁套3的复位斜面302上，如图34a-图34e所示。可以通过自由的设置触发面401和复位斜面302的相对轴向距离L，如图34a所示，进而实现触发力F先让外锁套4向远端轴向位移，再让复位锁套3沿轴向发生旋转的动作，如图34a-图34c所示。此时复位锁止301的圆周位置随着复位锁套3的旋转而相对于图34a和34d所显示的初始位置发生了明显变化，如图34e所示，这对自动注射装置后续复位及锁定功能的实现进行了准备。In the triggered state, the trigger force F acts not only on the trigger surface 401 of the outer lock sleeve 4, but also on the reset inclined surface 302 of the reset lock sleeve 3, as shown in Figures 34a-34e. The relative axial distance L between the trigger surface 401 and the reset inclined surface 302 can be freely set, as shown in Figure 34a, so that the trigger force F first causes the outer lock sleeve 4 to move axially to the distal end, and then causes the reset lock sleeve 3 to rotate axially, as shown in Figures 34a-34c. At this time, the circumferential position of the reset lock 301 changes significantly relative to the initial position shown in Figures 34a and 34d as the reset lock sleeve 3 rotates, as shown in Figure 34e, which prepares for the subsequent reset and locking functions of the automatic injection device.
为了更加清楚的描述复位和锁定过程中装置内部的零件变化状态，以下图中去掉了外壳13和近端端帽11的遮挡影响，复位和锁定状态下具体的时序实现过程将通过下述图示进行详细说明。In order to more clearly describe the changing states of the parts inside the device during the resetting and locking process, the shielding effect of the housing 13 and the proximal end cap 11 is removed in the following figure, and the specific timing implementation process in the resetting and locking states will be described in detail through the following diagrams.
图35a、图36a、图37a为自动注射装置原始状态示意图，图35b、图36b、图37b为自动注射装置触发状态示意图，图35c、图36c、图37c为自动注射装置结束状态示意图。Figures 35a, 36a and 37a are schematic diagrams of the original state of the automatic injection device, Figures 35b, 36b and 37b are schematic diagrams of the triggered state of the automatic injection device, and Figures 35c, 36c and 37c are schematic diagrams of the end state of the automatic injection device.
图35a中，自动注射装置保持初始安装状态，在此状态下，复位锁套3安装在外锁套4的近端内孔中，如图36a所示。并且，可以在去除冗余特征的图37a中明显的看到，在初始安装状态下，外锁套4的复位止挡402相对于复位锁套3的复位锁止301更加靠近近端布置。此时，复位弹簧8保持初始压缩状态，未受到来自外部的触发力。In FIG35a, the automatic injection device is in the initial installation state, in which the reset lock sleeve 3 is installed in the proximal inner hole of the outer lock sleeve 4, as shown in FIG36a. In addition, it can be clearly seen in FIG37a where redundant features are removed that in the initial installation state, the reset stopper 402 of the outer lock sleeve 4 is arranged closer to the proximal end relative to the reset lock 301 of the reset lock sleeve 3. At this time, the reset spring 8 remains in the initial compression state and is not subjected to the trigger force from the outside.
在图35b中，自动注射装置被来自外部的触发力F触发。当外锁套4受到沿轴向指向远端的触发力F时，外锁套4将向远端压缩复位弹簧8。由图34c可知，触发力F除了作用在外锁套4上使之向远端轴向位移，也会作用在复位锁套3上使之相对于外锁套4发生旋转。此时，复位锁套3的复位锁止301相对于图36a也发生了旋转变化，如图36b所示。并且，可以在去除冗余特征的图37b中明显的看到，在触发状态下，由于外锁套4沿轴向向远端发生了位移，因此复位锁套3的复位锁止301相对于外锁套4的复位止挡402更加靠近近端方向，此时，复位弹簧8在触发力F的作用下被外锁套4二次压缩。In FIG. 35b , the automatic injection device is triggered by a trigger force F from the outside. When the outer locking sleeve 4 is subjected to the trigger force F directed axially toward the distal end, the outer locking sleeve 4 will compress the reset spring 8 toward the distal end. As shown in FIG. 34c , in addition to acting on the outer locking sleeve 4 to cause it to axially displace toward the distal end, the trigger force F will also act on the reset locking sleeve 3 to cause it to rotate relative to the outer locking sleeve 4. At this time, the reset lock 301 of the reset locking sleeve 3 has also undergone a rotational change relative to FIG. 36a , as shown in FIG. 36b . In addition, it can be clearly seen in FIG. 37b , which removes redundant features, that in the triggered state, since the outer locking sleeve 4 has displaced axially toward the distal end, the reset lock 301 of the reset locking sleeve 3 is closer to the proximal direction relative to the reset stop 402 of the outer locking sleeve 4. At this time, the reset spring 8 is compressed twice by the outer locking sleeve 4 under the action of the trigger force F.
图35a、35b、36a、36b、37a、37b清楚的描述了自动注射装置进行复位和锁定功能的准备动作。Figures 35a, 35b, 36a, 36b, 37a, and 37b clearly illustrate the preparation actions of the automatic injection device for the reset and lock functions.
在图35c中，装置处于结束状态，此时的自动注射装置已经完成进给功能。在上一步骤中，由于复位弹簧8被外锁套4压缩，因此当触发力F被移除后，复位弹簧8将对外锁套4向近端释放二次压缩的弹簧蓄力F，如图35c所示，复位弹簧8将推动外锁套4向近端轴向位移。由于在上一步骤中，复位锁套3的复位锁止301相对于外锁套4的复位止挡402更加靠近近端方向，因此在外锁套4向近端轴向位移的过程中，复位止挡402将会持续抵靠着复位锁止301的外延部3011的斜面，使复位锁止301发生弹性变形并沿周向向内收缩，直至复位弹簧8完全释放弹簧蓄力F，复位锁止301落入复位止挡402之内的空槽中，如图35c、36c所示。相比图36b，在图36c中可以明显看到复位锁止301有一部分被复位止挡402所遮挡，此时外锁套4的复位止挡402相对于复位锁套3的复位锁止301更加靠近近端方向，如去除冗余特征的图37c所示。复位锁止301发生弹性变形的过程如图38a、图38b、图38c所示。其中图38a对应图35b的装置状态，图38b为装置从图35b到图35c的过程中复位锁止301的变化情况，图38c对应图35c的装置状态。In FIG. 35c , the device is in the end state, and the automatic injection device has completed the feeding function. In the previous step, since the reset spring 8 is compressed by the outer locking sleeve 4, when the trigger force F is removed, the reset spring 8 will release the secondary compressed spring force F to the outer locking sleeve 4 toward the proximal end, as shown in FIG. 35c , and the reset spring 8 will push the outer locking sleeve 4 to move axially toward the proximal end. Since in the previous step, the reset lock 301 of the reset lock sleeve 3 is closer to the proximal direction relative to the reset stop 402 of the outer locking sleeve 4, during the process of the outer locking sleeve 4 moving axially toward the proximal end, the reset stop 402 will continue to abut against the inclined surface of the extension 3011 of the reset lock 301, causing the reset lock 301 to undergo elastic deformation and shrink inward along the circumferential direction until the reset spring 8 completely releases the spring force F, and the reset lock 301 falls into the empty groove within the reset stop 402, as shown in FIGS. 35c and 36c . Compared with FIG. 36b, FIG. 36c clearly shows that a part of the reset lock 301 is blocked by the reset stop 402. At this time, the reset stop 402 of the outer lock sleeve 4 is closer to the proximal direction relative to the reset lock 301 of the reset lock sleeve 3, as shown in FIG. 37c with redundant features removed. The process of elastic deformation of the reset lock 301 is shown in FIG. 38a, FIG. 38b, and FIG. 38c. FIG. 38a corresponds to the device state of FIG. 35b, FIG. 38b shows the change of the reset lock 301 during the process from FIG. 35b to FIG. 35c, and FIG. 38c corresponds to the device state of FIG. 35c.
对比图35c和图35a，可以清楚的看到在自动注射装置的原始状态和结束状态下，外锁套4的相对位置没有发生变化，并且复位弹簧8均保持初始压缩状态，因此自动注射装置完成了复位功能。Comparing FIG. 35c with FIG. 35a , it can be clearly seen that in the original state and the end state of the automatic injection device, the relative position of the outer locking sleeve 4 does not change, and the reset spring 8 remains in the initial compressed state, so the automatic injection device completes the reset function.
特别的，在图37c中，当外锁套4再次受到来自外部沿轴向指向远端的触发力F时，复位锁止301可以抵挡复位止挡402，进而，外锁套4无法向远端再次移动，因此自动注射装置在完成复位功能的同时，也具备了锁定功能。In particular, in FIG. 37c , when the outer locking sleeve 4 is again subjected to the trigger force F from the outside axially pointing toward the distal end, the reset lock 301 can resist the reset stop 402, and thus, the outer locking sleeve 4 cannot move toward the distal end again. Therefore, the automatic injection device has a locking function while completing the reset function.
特别的，在图37c及图38b、图38c中，由于复位锁止301在落入复位止挡402之内的空槽的过程中发生了弹性变形沿周向向内收缩，而在落入复位止挡402之内的空槽后，复位锁止301是可以弹性恢复的，因此在复位锁止301瞬间的弹性恢复作用下，与外锁套4的近端内孔孔壁发声碰撞，进而产生发声声音，提示人员自动注射装置已经完成复位并锁定的功能。In particular, in Figures 37c, 38b and 38c, since the reset lock 301 undergoes elastic deformation and shrinks inwardly along the circumferential direction in the process of falling into the empty groove within the reset stop 402, and after falling into the empty groove within the reset stop 402, the reset lock 301 can be elastically restored. Therefore, under the instantaneous elastic recovery action of the reset lock 301, it audibly collides with the proximal inner hole wall of the outer locking sleeve 4, thereby generating a sound, prompting the personnel that the automatic injection device has completed the reset and locking function.
至此，自动注射装置伴随着原始状态、触发状态、运行状态、结束状态分别按时序的完成了蓄能、触发、发声反馈、复位、锁定的功能。At this point, the automatic injection device has completed the functions of energy storage, triggering, sound feedback, resetting, and locking in a timed sequence along with the original state, triggering state, running state, and end state.
本发明主要提供了一种自动注射装置。The present invention mainly provides an automatic injection device.
1.本发明的自动注射装置的整套方案提供了蓄能、触发、发声反馈、复位、锁定功能实现的技术原理。1. The entire solution of the automatic injection device of the present invention provides the technical principles for realizing the energy storage, triggering, audible feedback, resetting and locking functions.
2.本发明的自动注射装置提供了所包含的触发机构、蓄能机构、发声反馈机构、复位机构、锁定机构所涉及零部件结合的传动布局和/或方法。2. The automatic injection device of the present invention provides a transmission layout and/or method for combining the components involved in the trigger mechanism, energy storage mechanism, sound feedback mechanism, reset mechanism, and locking mechanism.
3.本发明的自动注射装置的发声反馈机理是使用推杆上的螺纹轨道驱动齿环转动，进而齿环刮擦齿槽发出连续或者断续的声音反馈，属于听觉反馈。3. The sound feedback mechanism of the automatic injection device of the present invention is to use the threaded track on the push rod to drive the gear ring to rotate, and then the gear ring scrapes the tooth groove to produce continuous or intermittent sound feedback, which belongs to auditory feedback.
4.本发明的自动注射装置的内锁套被嵌套在外锁套内，外锁套要向远端轴向移动较长的距离才可以触发内锁套，因此使用前可以防止误触发。4. The inner locking sleeve of the automatic injection device of the present invention is nested in the outer locking sleeve. The outer locking sleeve needs to move axially to the distal end for a long distance before triggering the inner locking sleeve, thereby preventing accidental triggering before use.
5.本发明的自动注射装置的驱动组件中，远端端盖、外锁套、内锁套、推杆为轴向套设，在推杆的外表面上设置的两个对称的通孔，分别与内锁套上向内设置的两个突起特征配合。在自动注射装置的原始状态下，进给弹簧有带动推杆一起向近端运动的趋势，而在外锁套的远端内孔中，内锁套的突起特征被外锁套限制无法在进给弹簧的作用下周向扩张，因此推杆的通孔被突起特征限制，进而在锁定状态下自动注射装置不会因为受到冲击、振动等环境干扰而被误触发，大大增强了该自动注射装置的稳定性。5. In the driving assembly of the automatic injection device of the present invention, the distal end cover, the outer locking sleeve, the inner locking sleeve, and the push rod are axially sleeved, and the two symmetrical through holes arranged on the outer surface of the push rod respectively cooperate with the two protruding features arranged inwardly on the inner locking sleeve. In the original state of the automatic injection device, the feed spring has a tendency to drive the push rod to move toward the proximal end, and in the distal inner hole of the outer locking sleeve, the protruding features of the inner locking sleeve are restricted by the outer locking sleeve and cannot expand circumferentially under the action of the feed spring, so the through hole of the push rod is restricted by the protruding features, and then the automatic injection device will not be triggered by mistake due to environmental interference such as impact and vibration in the locked state, which greatly enhances the stability of the automatic injection device.
6.本发明的自动注射装置复位时，复位锁套绕轴向旋转后，外锁套与复位锁套在复位弹簧的作用下，复位锁套的复位锁止可以落入外锁套的复位止挡内，因此使用后可以防止二次复用。6. When the automatic injection device of the present invention is reset, after the reset lock sleeve rotates axially, the reset lock of the reset lock sleeve can fall into the reset stop of the outer lock sleeve under the action of the reset spring, thereby preventing secondary reuse after use.
7.本发明的自动注射装置安全性极佳。7. The automatic injection device of the present invention has excellent safety.
本发明的自动注射装置具有以下优势：The automatic injection device of the present invention has the following advantages:
1.该自动注射装置是一种纯机械结构的模块化装置，因此具备机械结构可靠性高、稳定性好的固有属性。1. The automatic injection device is a modular device of purely mechanical structure, and therefore has the inherent properties of high mechanical structure reliability and good stability.
2.本发明将蓄能、触发、发声反馈、复位、锁定功能集成在一种自动注射装置内，技术方案本身具备多种的功能特性并具有完善的自动化特性；本发明通过合理布置传动结构和方案，可以实现一次触发即可自动完成释放弹簧蓄能、推送动作、发声反馈、以及注射后的复位和锁定功能，大大提高了装置的集成度，降低操作过程的复杂度；在自动注射装置集成度高的前提下，可以实现使用后的针头自动保护，提高装置的安全性要求。2. The present invention integrates the functions of energy storage, triggering, voice feedback, resetting and locking in an automatic injection device. The technical solution itself has multiple functional characteristics and perfect automation characteristics. The present invention can automatically complete the release of spring energy storage, pushing action, voice feedback, and resetting and locking functions after injection in one trigger through reasonable arrangement of the transmission structure and scheme, which greatly improves the integration of the device and reduces the complexity of the operation process. Under the premise of high integration of the automatic injection device, automatic protection of the needle after use can be achieved, thereby improving the safety requirements of the device.
3.本发明的自动注射装置的发声反馈功能可以作为信息交互的接口，通过具体的声音反馈、触觉反馈，向外部发送声音，使自动注射装置本身的功能状态可以被使用者监测，从而便于使用者进行下一步的控制或决策执行。在操作过程中的信息传递路径为先从装置到人，再从人到装置。因此装置本身具备闭环系统的属性，可以大大提高装置在操作过程中的安全性，可靠性。3. The voice feedback function of the automatic injection device of the present invention can be used as an interface for information interaction. Through specific voice feedback and tactile feedback, the sound is sent to the outside, so that the functional status of the automatic injection device itself can be monitored by the user, thereby facilitating the user to perform the next step of control or decision execution. The information transmission path during the operation process is first from the device to the person, and then from the person to the device. Therefore, the device itself has the properties of a closed-loop system, which can greatly improve the safety and reliability of the device during operation.
4.本发明的自动注射装置作为一种多功能性的自动注射装置，可以结合应用在多种注射场合中(例如慢性病治疗、急救治疗、诊断等具体细分领域)，技术方案的临床适用性很广泛。4. As a multifunctional automatic injection device, the automatic injection device of the present invention can be used in combination with a variety of injection occasions (such as chronic disease treatment, emergency treatment, diagnosis and other specific sub-fields), and the clinical applicability of the technical solution is very wide.
5.本发明的自动注射装置所包含的触发、蓄能、发声反馈、复位、锁定的功能，可以根据不同的使用目标群体(例如高等院校、科研单位、企业、教育系统、医疗系统等)，进行合理的装置化适配，可以使用金属材质或高分子材质制造，可以作为重复性使用或一次性使用的自动注射装置。5. The functions of triggering, energy storage, voice feedback, resetting and locking included in the automatic injection device of the present invention can be reasonably adapted according to different target groups (such as colleges and universities, scientific research institutions, enterprises, education systems, medical systems, etc.). It can be made of metal or polymer materials and can be used as a reusable or disposable automatic injection device.
以上所述实施例仅为本发明的较佳实施例而已，但并不能因此而理解为对本发明专利范围的限制，凡是在本发明的精神或实质之内所做的任何形式的修改、等效结构变换、等同替换及改进等，均属于本发明的保护范围内。因此，本发明的保护范围应以所附权利要求的内容为依据。The above-mentioned embodiments are only preferred embodiments of the present invention, but they cannot be understood as limiting the scope of the present invention. Any modification, equivalent structural transformation, equivalent replacement and improvement made within the spirit or essence of the present invention shall fall within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the content of the attached claims.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410394869.2ACN118267560A (en) | 2020-03-05 | 2020-05-12 | Automatic injection device and method of use |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010147577.0ACN111282094B (en) | 2020-03-05 | 2020-03-05 | Automatic injection device and method of use |
| CN2020101475770 | 2020-03-05 | ||
| PCT/CN2020/089784WO2021174669A1 (en) | 2020-03-05 | 2020-05-12 | Automatic injection device and method for using same |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410394869.2ADivisionCN118267560A (en) | 2020-03-05 | 2020-05-12 | Automatic injection device and method of use |
| Publication Number | Publication Date |
|---|---|
| CN115379869A CN115379869A (en) | 2022-11-22 |
| CN115379869Btrue CN115379869B (en) | 2024-06-25 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010147577.0AActiveCN111282094B (en) | 2020-03-05 | 2020-03-05 | Automatic injection device and method of use |
| CN202080098025.3AActiveCN115379869B (en) | 2020-03-05 | 2020-05-12 | Automatic injection device and method of use thereof |
| CN202410394869.2APendingCN118267560A (en) | 2020-03-05 | 2020-05-12 | Automatic injection device and method of use |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010147577.0AActiveCN111282094B (en) | 2020-03-05 | 2020-03-05 | Automatic injection device and method of use |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410394869.2APendingCN118267560A (en) | 2020-03-05 | 2020-05-12 | Automatic injection device and method of use |
| Country | Link |
|---|---|
| CN (3) | CN111282094B (en) |
| WO (1) | WO2021174669A1 (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4324500A4 (en)* | 2021-04-16 | 2025-02-19 | Shandong Wego Prefills Pharmaceutical Packaging Co., Ltd. | INJECTION PEN WITH ADJUSTABLE MULTI-DOSE PRELOAD |
| CN113144346B (en)* | 2021-05-12 | 2024-04-26 | 苏州嘉树医疗科技有限公司 | Trigger device suitable for automatic injector |
| CN113368343B (en)* | 2021-05-26 | 2022-06-10 | 宁波易舒医疗科技有限公司 | Thrust mechanism, automatic injection device applying same and use method thereof |
| US20240277936A1 (en)* | 2021-09-28 | 2024-08-22 | Shl Medical Ag | Feedback mechanism for a medicament delivery device |
| CN114099054A (en)* | 2021-11-09 | 2022-03-01 | 宁波第二激素厂 | Sheep is with sponge vaginal suppository placer |
| CN114870160B (en)* | 2022-03-31 | 2024-05-31 | 宁波睿爱产品设计有限公司 | Injection syringe |
| CN114627844A (en)* | 2022-04-09 | 2022-06-14 | 显陆(常州)科技有限公司 | Sliding and rotating sound generating device for portable liquid dispenser |
| CN115475298B (en)* | 2022-08-26 | 2023-12-01 | 宝玛医疗科技(无锡)有限公司 | Self-locking structure of flusher and flusher |
| CN115887827A (en)* | 2022-09-16 | 2023-04-04 | 嘉兴森迈医疗科技有限公司 | Mechanical automatic injection pen |
| CN115887829B (en)* | 2022-11-24 | 2025-06-13 | 苏州恒瑞宏远医疗科技有限公司 | Voice feedback mechanism, injection drive mechanism and automatic injection device |
| CN115737991A (en)* | 2022-12-27 | 2023-03-07 | 苏州恒瑞宏远医疗科技有限公司 | Automatic injection pen |
| WO2025124189A1 (en)* | 2023-12-14 | 2025-06-19 | 上海新耀湃科医疗科技股份有限公司 | Spiral excitation assembly of prefilled automatic injection pen and prefilled automatic injection pen |
| CN117731890B (en)* | 2023-12-20 | 2025-09-26 | 易安适医疗科技(苏州)有限公司 | A Luban lock structure and syringe |
| CN120550258B (en)* | 2025-07-30 | 2025-09-26 | 苏州嘉树医疗科技有限公司 | Disposable injection pen and injection unlocking structure thereof |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110681004A (en)* | 2019-11-15 | 2020-01-14 | 苏州嘉树医疗科技有限公司 | an automatic injector |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006507061A (en)* | 2002-11-25 | 2006-03-02 | テクファーマ・ライセンシング・アクチェンゲゼルシャフト | Automatic injection device with resettable release safety device |
| CN103920212B (en)* | 2008-09-29 | 2017-04-12 | 贝克顿迪金森法国公司 | Automatic injecting device capable of giving sound indication when injection is completed |
| US9572937B2 (en)* | 2010-02-18 | 2017-02-21 | Sanofi-Aventis Deutschland Gmbh | Autoinjector having piston rod with non-circular axial bore slidably arranged on housing shaft to prevent relative rotation |
| GB2509348B (en)* | 2013-09-10 | 2016-03-30 | Owen Mumford Ltd | Leak prevention in injection device |
| US10089902B2 (en)* | 2016-05-23 | 2018-10-02 | Noble International, Inc. | Resettable locking shield-activated auto injector training device |
| FR3055101B1 (en)* | 2016-08-16 | 2021-12-10 | Nemera La Verpilliere | AUTOMATIC INJECTION DEVICE WITH IMPROVED SYRINGE RETENTION. |
| US10814073B2 (en)* | 2016-12-13 | 2020-10-27 | Becton, Dickinson And Company | Safety device with collapsible housing and trigger activation |
| CN207384564U (en)* | 2017-03-16 | 2018-05-22 | 珠海凯生医用科技有限公司 | Automatic insulin injection device |
| CN107308523A (en)* | 2017-08-08 | 2017-11-03 | 甘肃成纪生物药业有限公司 | Finely tune injection pen |
| EP3545995A1 (en)* | 2018-03-28 | 2019-10-02 | Sanofi | Injection device |
| CN112188907A (en)* | 2018-05-24 | 2021-01-05 | 诺华股份有限公司 | Automatic drug delivery device |
| CN209173118U (en)* | 2018-11-15 | 2019-07-30 | 珠海市海杰科技有限公司 | A kind of continuous and quantitative formula automated injection device |
| CN110841149A (en)* | 2019-12-18 | 2020-02-28 | 苏州嘉树医疗科技有限公司 | Low-temperature locking automatic injector |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110681004A (en)* | 2019-11-15 | 2020-01-14 | 苏州嘉树医疗科技有限公司 | an automatic injector |
| Publication number | Publication date |
|---|---|
| CN111282094B (en) | 2020-11-10 |
| CN118267560A (en) | 2024-07-02 |
| CN115379869A (en) | 2022-11-22 |
| WO2021174669A1 (en) | 2021-09-10 |
| CN111282094A (en) | 2020-06-16 |
| Publication | Publication Date | Title |
|---|---|---|
| CN115379869B (en) | Automatic injection device and method of use thereof | |
| CN114828919B (en) | Two-step automatic injection device | |
| JP7203847B2 (en) | Automatic injection drug delivery device | |
| US5085642A (en) | Conveniently carried frequent use autoinjector | |
| US5425715A (en) | Reloadable injector | |
| RU2624341C2 (en) | Automated injector with separate needle insertion | |
| JP6151184B2 (en) | Drive assembly for self-injector and method for assembling self-injector | |
| JPH03222962A (en) | Injection device | |
| EP3347891B1 (en) | Resettable auto injector training device with a releasably locking shield and a resetting cap | |
| TWI598120B (en) | Auto-injector | |
| CN113368344B (en) | Axial driving mechanism, automatic injection device and using method thereof | |
| CN108778373B (en) | Medicine injection device with automatic needle retraction after injection | |
| EP2695630B1 (en) | Liquid infusion instrument | |
| TW201303171A (en) | Detent mechanism | |
| CN113368343B (en) | Thrust mechanism, automatic injection device applying same and use method thereof | |
| WO2003008025A1 (en) | An automatically retractable safety syringe | |
| US20210128836A1 (en) | Power unit for use in an autoinjector and method of assembling such power unit | |
| WO2025025637A1 (en) | Automatic injection pen | |
| CN112933346A (en) | Axial propelling mechanism, automatic injection device and working method of automatic injection device | |
| JP2020049241A (en) | Drug delivery device | |
| CN107735124A (en) | Injection device with safety trigger | |
| CN117838988B (en) | False triggering preventing structure of automatic injection pen | |
| JP2021519669A (en) | Automatic injection device with memory elements | |
| US20200324050A1 (en) | Supplementary device for a medicament delivery device | |
| TWI841305B (en) | Medical injection system |
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |