技术领域technical field
本发明涉及一种具有手动复位机构的手柄及吻合器。The invention relates to a handle and a stapler with a manual reset mechanism.
背景技术Background technique
腹腔镜吻合器是腹腔镜手术中的常用器械，目前市场上主流外科耗材器械生产商都有相应器械。腔镜吻合器头端为可开闭的钳口，夹闭组织后扣动击发手柄可以将推动切割刀及楔形推块前进，同时将吻合钉向上推出，并钉合相应组织。Laparoscopic staplers are commonly used instruments in laparoscopic surgery, and the mainstream surgical consumables manufacturers in the market currently have corresponding instruments. The head end of the laparoscopic stapler is a jaw that can be opened and closed. After the tissue is clamped, the firing handle can be pulled to push the cutting knife and the wedge-shaped push block forward, and at the same time, the staples are pushed upward and the corresponding tissue is stapled.
在吻合器使用过程中可能存在多种意外情况导致器械停止运转，如电池电量耗尽、电路板信号丢失、电机损坏等，此时无法通过按键控制将切割刀收回并打开钳口；同时电机由于自身特性而被锁定无法转动，与电机齿轮啮合的齿轮或齿条也无法运动，故器械与病人无法脱开，也无法从腹腔内取出，会造成严重的临床后果。因此，设计一个安全可靠的手动复位机构显得尤为必要。During the use of the stapler, there may be many accidents that cause the instrument to stop running, such as the battery is exhausted, the circuit board signal is lost, the motor is damaged, etc. At this time, the cutting knife cannot be retracted and the jaws can be opened by pressing the button; Due to its own characteristics, it is locked and cannot rotate, and the gear or rack meshed with the motor gear cannot move, so the instrument cannot be disengaged from the patient, nor can it be taken out from the abdominal cavity, which will cause serious clinical consequences. Therefore, it is particularly necessary to design a safe and reliable manual reset mechanism.
目前多数公司(如美国强生公司及多数国内厂家)采用的技术方案是将与电机输出齿轮通过一传动齿轮与齿条啮合，需要进行解锁操作时，沿传动齿轮的轴向推动传动齿轮，使其与齿条脱离啮合，但该方案缺点是当器械前端卡死后齿条无法运动，而电机强大的输出力使其与传动齿轮间存在巨大的挤压力，使摩擦力增大，需要很大的力才能将传动齿轮推动，而由于器械与病人组织连接在一起，用户很难采用舒适的姿势发力，进而导致无法解锁。为了解决这一问题，只能设计复杂的凸轮杠杆机构将操作力放大，成本较高；同时还需要设计复杂的机构使传动齿轮与齿条保持脱离，从而避免故障器械被二次使用。At present, the technical solution adopted by most companies (such as Johnson & Johnson and most domestic manufacturers) is to mesh the output gear of the motor with the rack through a transmission gear. When unlocking is required, the transmission gear is pushed along the axial direction of the transmission gear to make It is disengaged from the rack, but the disadvantage of this solution is that the rack cannot move when the front end of the instrument is stuck, and the strong output force of the motor makes it have a huge extrusion force between the gear and the transmission gear, which increases the friction and requires a lot of Only a certain force can push the transmission gear, and because the device is connected with the patient's tissue, it is difficult for the user to apply force in a comfortable posture, which leads to the failure to unlock. In order to solve this problem, a complex cam lever mechanism can only be designed to amplify the operating force, which is costly; at the same time, a complex mechanism needs to be designed to keep the transmission gear and the rack apart, so as to prevent the faulty device from being used again.
发明内容Contents of the invention
本发明的目的是提供一种省力且结构简单的具有手动复位机构的手柄。The object of the present invention is to provide a handle with a manual reset mechanism which is labor-saving and simple in structure.
本发明的另一个目的是提供一种包含该手柄的吻合器。Another object of the present invention is to provide a stapler comprising the handle.
为达到上述目的，本发明采用的技术方案是：In order to achieve the above object, the technical scheme adopted in the present invention is:
一种具有手动复位机构的手柄，包括：A handle with a manual reset mechanism, comprising:
壳体；case;
驱动组件，设于所述壳体；a drive assembly, located in the housing;
传动组件，包括设于所述壳体的传动齿轮和沿前后方向延伸的齿条，所述传动齿轮分别与所述驱动组件、所述齿条可操作地连接，所述传动齿轮能够在所述驱动组件的驱动下绕其轴心线正转或反转并带动所述齿条前进或后退，所述传动齿轮的轴心线沿上下方向延伸；The transmission assembly includes a transmission gear arranged in the housing and a rack extending in the front and rear directions, the transmission gear is operatively connected with the drive assembly and the rack respectively, and the transmission gear can be connected to the Driven by the drive assembly, it rotates forward or reverse around its axis and drives the rack forward or backward, and the axis of the transmission gear extends in the up and down direction;
所述手柄还包括手动复位机构，所述手动复位机构包括：The handle also includes a manual reset mechanism, and the manual reset mechanism includes:
齿轮连杆，所述齿轮连杆绕第一转动轴心线转动地设置在所述壳体内，所述第一转动轴心线与所述传动齿轮的轴心线相平行，所述齿轮连杆的一端部连接在所述传动齿轮上；A gear connecting rod, the gear connecting rod is arranged in the housing so as to rotate around a first axis of rotation, the first axis of rotation is parallel to the axis of the transmission gear, the gear connecting rod One end of is connected to the transmission gear;
操作组件，所述操作组件连接在所述齿轮连杆上，当操作所述操作组件时，所述齿轮连杆在所述操作组件的驱动下绕所述第一转动轴心线转动，并带动所述传动齿轮与所述齿条和所述驱动组件相连接或与所述齿条和/或所述驱动组件脱离连接，所述操作组件可暴露于所述壳体；An operation assembly, the operation assembly is connected to the gear connecting rod, when the operation assembly is operated, the gear connection rod is driven by the operation assembly to rotate around the first rotation axis, and drives The transmission gear is connected to or disconnected from the rack and the driving assembly, and the operating assembly can be exposed to the housing;
回退组件，所述回退组件连接在所述齿条上，当所述传动齿轮与所述齿条和/或所述驱动组件处于脱离连接状态时，操作所述回退组件可使所述齿条前进或后退。a retracting assembly, the retracting assembly is connected to the rack, and when the transmission gear is disconnected from the rack and/or the driving assembly, operating the retracting assembly can make the The rack goes forward or backward.
优选地，所述操作组件包括第一连杆和第二连杆，所述第一连杆的一端绕第二转动轴心线转动地设置在所述齿轮连杆上；所述第二连杆的一端绕第三转动轴心线转动地设置在壳体内，另一端绕第四转动轴心线转动地设置在所述第一连杆的中间部位上，所述第二转动轴心线、第三转动轴心线、第四转动轴心线与所述第一转动轴心线相互平行；Preferably, the operating assembly includes a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably arranged on the gear connecting rod around the second rotation axis; the second connecting rod One end of the connecting rod is arranged in the casing to rotate around the third axis of rotation, and the other end is arranged on the middle part of the first connecting rod to rotate around the center of the fourth rotation axis. The second axis of rotation, the second axis of rotation The three rotation axes, the fourth rotation axis and the first rotation axis are parallel to each other;
向外拉动所述第一连杆，所述第一连杆、第二连杆、齿轮连杆各自转动，并带动所述传动齿轮向外运动，使所述传动齿轮与所述齿条和/或所述驱动组件脱离连接。Pull the first connecting rod outward, the first connecting rod, the second connecting rod, and the gear connecting rod rotate respectively, and drive the transmission gear to move outward, so that the transmission gear and the rack and/or Or the drive assembly is disconnected.
进一步地，所述手动复位机构还包括固定设置在所述壳体内的配合部，所述配合部位于所述齿条和所述操作组件之间，当所述传动齿轮与所述齿条和所述驱动组件处于连接状态时，所述配合部与所述第一连杆和/或所述第二连杆相接触。Furthermore, the manual reset mechanism also includes a matching part fixedly arranged in the housing, and the matching part is located between the rack and the operation assembly, when the transmission gear is connected to the rack and the When the driving assembly is in a connected state, the matching portion is in contact with the first connecting rod and/or the second connecting rod.
一些优选的实施方式中，所述配合部为凸块。In some preferred embodiments, the matching portion is a bump.
进一步地，所述凸块的自由端呈弧形。Further, the free end of the protrusion is arc-shaped.
优选地，当所述传动齿轮由与所述齿条和所述驱动组件连接状态转换成与所述齿条和/或所述驱动组件脱离连接状态时，所述第一转动轴心线和所述第二转动轴心线所在的平面与所述齿条轴线之间的夹角逐渐减小。Preferably, when the transmission gear changes from being connected to the rack and the driving assembly to being disconnected from the rack and/or the driving assembly, the first rotation axis and the driving assembly The angle between the plane where the second rotation axis is located and the axis of the rack gradually decreases.
一些具体的实施方式中，当所述传动齿轮与所述齿条和所述驱动组件处于连接状态时，所述第一转动轴心线和所述第二转动轴心线所在的平面与所述齿条轴线之间的夹角约90°，进一步为85°～95°。In some specific embodiments, when the transmission gear is connected to the rack and the drive assembly, the plane where the first rotation axis and the second rotation axis are located is the same as the plane where the The included angle between the axes of the racks is about 90°, further 85°-95°.
优选地，所述齿轮连杆的一端部具有容置所述传动齿轮的容纳区域，所述传动齿轮转动地设置在所述容纳区域内。Preferably, one end of the gear link has an accommodating area for accommodating the transmission gear, and the transmission gear is rotatably disposed in the accommodating area.
优选地，所述手动复位机构还包括保持组件，用于使所述传动齿轮与所述齿条和/或所述驱动组件保持脱离连接状态。Preferably, the manual reset mechanism further includes a holding component for keeping the transmission gear in a disconnected state from the rack and/or the driving component.
进一步地，所述保持组件包括绕第五转动轴心线转动地设置在所述壳体内的保持挂钩以及扭簧，所述扭簧的一端臂固定设置在壳体内，另一端臂固定连接在所述保持挂钩上；Further, the holding assembly includes a holding hook and a torsion spring that are rotatably arranged in the housing around the fifth rotation axis, one end arm of the torsion spring is fixedly arranged in the housing, and the other end arm is fixedly connected to the housing. keep the hook on;
当所述传动齿轮与所述齿条和所述驱动组件处于连接状态时，所述保持挂钩抵设在所述齿轮连杆另一端部的端面上；当所述传动齿轮与所述齿条和/或所述驱动组件处于脱离连接状态时，所述保持挂钩的勾部插入所述齿轮连杆另一端部的凹槽内，并使得所述齿轮连杆的一端部具有向外运动的趋势。When the transmission gear is connected to the rack and the driving assembly, the retaining hook is abutted against the end surface of the other end of the gear connecting rod; when the transmission gear is connected to the rack and the drive assembly /or when the driving assembly is in a disconnected state, the hook portion of the holding hook is inserted into the groove at the other end of the gear connecting rod, and makes the one end of the gear connecting rod have a tendency to move outward.
进一步地，所述凹槽位于所述齿轮连杆另一端部的外侧部，所述凹槽具有与所述保持挂钩的勾部相适配的配合面。Further, the groove is located on the outer side of the other end of the gear connecting rod, and the groove has a mating surface adapted to the hook portion of the holding hook.
更进一步地，所述配合面为平面。Furthermore, the matching surface is a plane.
优选地，所述回退组件包括回退拉杆，所述回退拉杆固定连接在所述齿条上且一端伸出于所述壳体，所述壳体具有沿前后方向延伸的滑槽，所述回退拉杆位于所述滑槽内且能够在所述滑槽内滑动。Preferably, the retraction assembly includes a retraction rod, the retraction rod is fixedly connected to the rack and one end protrudes from the housing, the housing has a chute extending in the front-rear direction, the The retraction rod is located in the sliding groove and can slide in the sliding groove.
优选地，所述手柄还包括设置在所述壳体内的机架，所述齿轮连杆、操作组件、保持组件分别安装在所述机架上。Preferably, the handle further includes a frame arranged in the housing, and the gear connecting rod, the operating assembly, and the holding assembly are installed on the frame respectively.
进一步地，至少部分所述机架位于所述齿条与所述齿轮连杆、操作组件和保持组件之间。Further, at least part of the rack is located between the rack and the gear connecting rod, the operating assembly and the holding assembly.
优选地，所述壳体具有镂空的操作窗口，所述操作窗口位于所述操作组件外侧的壳体上，所述操作窗口上可选择性地贴纸覆盖。Preferably, the casing has a hollowed-out operation window, the operation window is located on the casing outside the operation assembly, and the operation window can be selectively covered with stickers.
优选地，所述驱动组件包括具有电机齿轮的电机，所述电机位于所述齿条的下方且所述电机齿轮的转动轴心线与所述传动齿轮的转动轴心线相平行，所述传动齿轮位于所述齿条的侧面，该侧面具有齿面，当所述传动齿轮与所述驱动组件和所述齿条连接时，所述传动齿轮分别与所述电机齿轮、齿条的齿面相啮合。Preferably, the driving assembly includes a motor with a motor gear, the motor is located below the rack and the rotation axis of the motor gear is parallel to the rotation axis of the transmission gear, and the transmission The gear is located on the side of the rack, and the side has a tooth surface. When the transmission gear is connected with the drive assembly and the rack, the transmission gear meshes with the tooth surfaces of the motor gear and the rack respectively. .
进一步地，所述电机齿轮和所述齿条位于所述传动齿轮的同侧。Further, the motor gear and the rack are located on the same side of the transmission gear.
本发明的另一目的是提供一种吻合器，包括工作头，所述吻合器还包括如上所述的手柄，所述工作头连接在所述手柄上。Another object of the present invention is to provide a stapler, including a working head, the stapler also includes the above-mentioned handle, and the working head is connected to the handle.
所述工作头的结构参照现有技术中的吻合器的工作头。The structure of the working head refers to the working head of the stapler in the prior art.
由于上述技术方案运用，本发明与现有技术相比具有下列优点：Due to the use of the above-mentioned technical solutions, the present invention has the following advantages compared with the prior art:
本发明手柄中的手动复位机构通过齿轮连杆、操作组件及保持组件等的设计，使得传动齿轮能够沿其径向与齿条或驱动组件脱离连接，较为省力，方便用户操作。The manual reset mechanism in the handle of the present invention enables the transmission gear to be disconnected from the rack or the drive assembly along its radial direction through the design of the gear connecting rod, the operating assembly and the holding assembly, which is labor-saving and convenient for the user to operate.
附图说明Description of drawings
图1为本发明一种实施方式中手柄的结构示意图；Fig. 1 is a schematic structural view of a handle in an embodiment of the present invention;
图2为图1手柄的结构分解图；Fig. 2 is an exploded view of the structure of Fig. 1 handle;
图3为图1手柄内部结构的结构示意图；Fig. 3 is a structural schematic diagram of the internal structure of the handle of Fig. 1;
图4为图1手柄内部结构的另一角度的结构示意图；Fig. 4 is a structural schematic diagram of another angle of the internal structure of the handle of Fig. 1;
图5为图1手柄内部结构的俯视图；Fig. 5 is a top view of the internal structure of the handle of Fig. 1;
图6为图1手柄中的传动齿轮与齿条和/或驱动组件处于脱离连接状态时的结构示意图；Fig. 6 is a schematic structural view of the transmission gear in the handle of Fig. 1 when the rack and/or the driving assembly are in a disconnected state;
图7为图6手柄的俯视图；Fig. 7 is the top view of Fig. 6 handle;
图8为图6手柄内部结构的结构示意图；Fig. 8 is a structural schematic diagram of the internal structure of the handle in Fig. 6;
图9为图6手柄内部结构的另一角度的结构示意图；Fig. 9 is a structural schematic diagram of another angle of the internal structure of the handle in Fig. 6;
图10为图6手柄内部结构的俯视图；Fig. 10 is a top view of the internal structure of the handle in Fig. 6;
图11为本发明一种实施方式中的传动组件和驱动组件以及包含手柄其他结构的结构示意图；Fig. 11 is a structural schematic diagram of a transmission assembly, a drive assembly and other structures including handles in an embodiment of the present invention;
图12为图11传动组件和驱动组件以及包含手柄其他结构的俯视图；Fig. 12 is a top view of the transmission assembly and drive assembly of Fig. 11 and other structures including the handle;
图13为本发明一种实施方式中的齿轮连杆的结构示意图；Fig. 13 is a structural schematic diagram of a gear connecting rod in an embodiment of the present invention;
图14为本发明一种实施方式中的吻合器的结构示意图；Fig. 14 is a schematic structural view of a stapler in an embodiment of the present invention;
其中，1、壳体；11、第一外壳；12、第二外壳；13、滑槽；14、操作窗口；Among them, 1. shell; 11. first shell; 12. second shell; 13. chute; 14. operation window;
2、电机；21、电机齿轮；2. Motor; 21. Motor gear;
3、齿条；31、齿面；3. Rack; 31. Tooth surface;
4、传动齿轮；4. Transmission gear;
5、齿轮连杆；51、远端部；511、容纳区域；52、近端部；521、近端面；522、凹槽；523、配合面；5. Gear connecting rod; 51, distal end portion; 511, accommodation area; 52, proximal end portion; 521, proximal end face; 522, groove; 523, mating surface;
6、操作组件；61、第一连杆；62、第二连杆；6. Operating components; 61. The first connecting rod; 62. The second connecting rod;
7、保持组件；71、保持挂钩；711、勾部；72、扭簧；7. Holding component; 71. Holding hook; 711. Hook; 72. Torsion spring;
8、回退拉杆；8. Roll back the pull rod;
9、机架；91、配合部；9. Rack; 91. Cooperating part;
A、工作头；A1、执行部件；A. Working head; A1. Executing parts;
a、第一转动轴心线；b、第二转动轴心线；c、第三转动轴心线；d、第四转动轴心线；e、第五转动轴心线；f、传动齿轮的轴心线；a, the first axis of rotation; b, the second axis of rotation; c, the third axis of rotation; d, the fourth axis of rotation; e, the fifth axis of rotation; f, the transmission gear axis line;
x、前后方向；y、左右方向；z、上下方向；x, front-back direction; y, left-right direction; z, up-down direction;
γ、第一转动轴心线和第二转动轴心线所在的平面与齿条的轴线之间的夹角。γ, the angle between the plane where the first rotation axis and the second rotation axis are located and the axis of the rack.
具体实施方式Detailed ways
下面结合实施例对本发明作进一步描述。但本发明并不限于以下实施例。实施例中采用的实施条件可以根据具体使用的不同要求做进一步调整，未注明的实施条件为本行业中的常规条件。本发明各个实施方式中所涉及到的技术特征只要彼此之间未构成冲突就可以相互组合。The present invention will be further described below in conjunction with embodiment. However, the present invention is not limited to the following examples. The implementation conditions adopted in the examples can be further adjusted according to the different requirements of specific use, and the implementation conditions not indicated are the conventional conditions in this industry. The technical features involved in the various embodiments of the present invention may be combined with each other as long as they do not constitute conflicts with each other.
在下文中，仅简单地描述了某些示例性实施例。正如本领域技术人员可认识到的那样，在不脱离本发明实施例的精神或范围的情况下，可通过各种不同方式修改所描述的实施例。因此，附图和描述被认为本质上是示例性的而非限制性的。In the following, only some exemplary embodiments are briefly described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not restrictive.
在本发明实施例的描述中，需要理解的是，术语“远”、“近”等指示的方位或位置关系是基于手柄在使用时的方位进行定义的，其中靠近操作者的一侧为近，远离操作者的一侧为远，仅是为了便于描述本发明实施例和简化描述，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实施例的限制。In the description of the embodiments of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "far", "near", etc. are defined based on the orientation of the handle when in use, wherein the side close to the operator is the near , the side far away from the operator is only for the convenience of describing the embodiment of the present invention and simplifying the description, not to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot It should be understood as a limitation to the embodiments of the present invention.
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明实施例的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.
下文的公开提供了许多不同的实施方式或例子用来实现本发明实施例的不同结构。为了简化本发明实施例的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本发明实施例。此外，本发明实施例可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。The following disclosure provides many different implementations or examples for realizing different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the embodiments of the present invention. Furthermore, embodiments of the present invention may repeat reference numerals and/or reference letters in different instances, such repetition is for simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed.
实施例1Example 1
本发明提供一种吻合器，参见图14，一般而言，该吻合器用于腹腔镜外科手术，例如通过穿刺器引入手术区域，但应当指出的是，其也可以用于开放式外科手术。The present invention provides a stapler, see FIG. 14 , generally speaking, the stapler is used for laparoscopic surgery, for example, introduced into the surgical field through a trocar, but it should be noted that it can also be used for open surgery.
具体地，吻合器包括手柄以及与手柄可拆卸连接的工作头A，工作头A的远端部分为执行部件A1，适于对组织进行夹持、缝合/吻合、切割等，工作头A的具体结构以及连接方式可参照现有技术。手柄具有扳机、握持部分等，将扳机向握持部分的方向扣动时，可以实现对执行部件A1的钳口闭合，扳机、握持部分等具体结构及连接关系，可参照现有技术，本发明不作具体限制。Specifically, the stapler includes a handle and a working head A that is detachably connected to the handle. The distal part of the working head A is the execution part A1, which is suitable for clamping, suturing/stapling, cutting, etc. the tissue. The specific details of the working head A The structure and connection method can refer to the prior art. The handle has a trigger, a holding part, etc. When the trigger is pulled in the direction of the holding part, the jaws of the actuator A1 can be closed. The specific structure and connection relationship of the trigger and the holding part can refer to the existing technology. The present invention is not specifically limited.
本发明的手柄具有手动复位机构，当意外情况发生导致手柄停止运转时，通过手动复位机构可将齿条3复位，从而能够将切割刀回退。以下针对手柄做进一步论述。The handle of the present invention has a manual reset mechanism. When an accident occurs and the handle stops running, the rack 3 can be reset by the manual reset mechanism, so that the cutting knife can be retracted. The handle is further discussed below.
手柄，参见图1至图13，包括壳体1，分别设置在壳体1内的驱动组件和传动组件以及至少部分设置在壳体1内的手动复位机构。The handle, referring to FIGS. 1 to 13 , includes a housing 1 , a driving assembly and a transmission assembly respectively disposed in the housing 1 and a manual reset mechanism at least partially disposed in the housing 1 .
参见图11和图12，驱动组件包括电机2，电机2的输出轴设有用于输出动力的电机齿轮21。传动组件包括齿条3和传动齿轮4。齿条3可滑动地设置在壳体1内且沿前后方向x(即x方向)延伸；传动齿轮4与驱动组件、齿条3可操作地连接，其能够在驱动组件的驱动下绕其轴心线正转或反转并带动齿条3前进或后退。其中传动齿轮4的轴心线f与电机齿轮21的轴心线相互平行且沿上下方向z(即z方向)延伸。Referring to Fig. 11 and Fig. 12, the driving assembly includes a motor 2, and the output shaft of the motor 2 is provided with a motor gear 21 for outputting power. The transmission assembly includes a rack 3 and a transmission gear 4 . The rack 3 is slidably arranged in the housing 1 and extends along the front-rear direction x (ie, the x direction); the transmission gear 4 is operatively connected with the drive assembly and the rack 3, and can be driven by the drive assembly to rotate around its axis. The heart line rotates forward or reversely and drives the rack 3 to advance or retreat. The axis f of the transmission gear 4 and the axis f of the motor gear 21 are parallel to each other and extend along the up-down direction z (ie, z-direction).
具体地，齿条3位于电机齿轮21的上方，传动齿轮4位于齿条3的侧面以及与齿条3同侧的电机齿轮21的侧面，设有传动齿轮4的齿条3侧面具有与传动齿轮4相适配的齿面31，使得传动齿轮4能够同时与齿条3和电机齿轮21相啮合，当电机2启动时，通过传动齿轮4可带动齿条3前进或后退。Specifically, the rack 3 is positioned above the motor gear 21, the transmission gear 4 is positioned at the side of the rack 3 and the side of the motor gear 21 on the same side as the rack 3, and the rack 3 side with the transmission gear 4 has a 4 matched tooth surfaces 31 enable the transmission gear 4 to mesh with the rack 3 and the motor gear 21 at the same time. When the motor 2 starts, the transmission gear 4 can drive the rack 3 to move forward or backward.
手动复位机构包括齿轮连杆5和操作组件6。具体地，参见图3和图8，齿轮连杆5绕第一转动轴心线a转动地设置在壳体1内，第一转动轴心线a与传动齿轮4的轴心线f相平行，齿轮连杆5的一端部连接在所述传动齿轮4上。操作组件6连接在齿轮连杆5上，当操作操作组件6时，齿轮连杆5在操作组件6的驱动下绕第一转动轴心线a转动，并带动传动齿轮4与齿条3和驱动组件相连接(此时，手柄处于锁定状态，参见图3至图5)或与齿条3和/或驱动组件脱离连接(此时，手柄处于解锁状态，参见图8至图10)。The manual reset mechanism includes a gear link 5 and an operating assembly 6 . Specifically, referring to Fig. 3 and Fig. 8, the gear connecting rod 5 is rotatably arranged in the housing 1 around the first rotation axis a, the first rotation axis a is parallel to the axis f of the transmission gear 4, One end of the gear connecting rod 5 is connected to the transmission gear 4 . The operating component 6 is connected to the gear connecting rod 5. When the operating component 6 is operated, the gear connecting rod 5 is driven by the operating component 6 to rotate around the first rotation axis a, and drives the transmission gear 4 and the rack 3 to drive The components are connected (at this time, the handle is in a locked state, see Figures 3 to 5) or disconnected from the rack 3 and/or the drive assembly (at this time, the handle is in an unlocked state, see Figures 8 to 10).
现有技术中，大都通过使传动齿轮4沿轴向移动的方式实现传动齿轮4与齿条3或者电机齿轮21脱离啮合(即解锁)，具体可通过施加向上或向下的力使传动齿轮4向上运动或向下运动，从而脱离与齿条3或电机齿轮21的啮合，例如专利CN111202553B、CN105997171B等。但由于电机2锁死后强大的输出力使其与传动齿轮4间存在巨大的挤压力，因此实际中往往需要施加较大的力才能使传动齿轮4与齿条3或者电机齿轮21脱离啮合。本发明通过使齿轮连杆5带动传动齿轮4转动，从而使传动齿轮4沿径向脱开与齿条3和/或驱动组件的啮合，不存在传动齿轮4沿轴向移动时侧向力导致的巨大摩擦力，更加省力，便于操作者操作。In the prior art, the disengagement (that is, unlocking) of the transmission gear 4 from the rack 3 or the motor gear 21 is mostly achieved by moving the transmission gear 4 in the axial direction, specifically, the transmission gear 4 can be made to move by applying an upward or downward force. Move up or down, so as to disengage from the meshing with the rack 3 or the motor gear 21, such as patents CN111202553B, CN105997171B, etc. However, due to the strong output force of the motor 2 after it is locked, there is a huge squeezing force between it and the transmission gear 4, so in practice, it is often necessary to apply a relatively large force to disengage the transmission gear 4 from the rack 3 or the motor gear 21. . In the present invention, the gear connecting rod 5 drives the transmission gear 4 to rotate, so that the transmission gear 4 disengages from the meshing with the rack 3 and/or the drive assembly in the radial direction, and there is no lateral force caused by the transmission gear 4 moving in the axial direction. The huge friction force is more labor-saving and easy for the operator to operate.
进一步地，操作组件6包括第一连杆61和第二连杆62。Further, the operating assembly 6 includes a first link 61 and a second link 62 .
参见图3和图8，第一连杆61的一端绕第二转动轴心线b转动地设置在齿轮连杆5上。第二连杆62的一端绕第三转动轴心线c转动地设置在壳体1内，另一端绕第四转动轴心线d转动地设置在第一连杆61的中间部位上，第二转动轴心线b、第三转动轴心线c、第四转动轴心线d与第一转动轴心线a相互平行。向外拉动第一连杆61，第一连杆61、第二连杆62、齿轮连杆5各自转动，并带动传动齿轮4向外运动，使传动齿轮4与齿条3和/或驱动组件脱离连接(即脱离啮合)。本实施例中，向外拉动第一连杆61，传动齿轮4向外运动使得传动齿轮4同时与齿条3和电机齿轮21脱离啮合。本发明的操作组件6通过第一连杆61和第二连杆62的设计，可放大作用于操作组件6上的作用力，操作者可以轻易将操作杆拉出。此外，该结构制造简单、安装方便、生产成本低。Referring to FIG. 3 and FIG. 8 , one end of the first connecting rod 61 is arranged on the gear connecting rod 5 so as to rotate around the second rotation axis b. One end of the second connecting rod 62 is arranged in the casing 1 to rotate around the third axis of rotation c, and the other end is arranged on the middle part of the first connecting rod 61 to rotate around the fourth axis of rotation d. The rotation axis b, the third rotation axis c, the fourth rotation axis d and the first rotation axis a are parallel to each other. Pull the first connecting rod 61 outward, the first connecting rod 61, the second connecting rod 62, and the gear connecting rod 5 rotate respectively, and drive the transmission gear 4 to move outward, so that the transmission gear 4 and the rack 3 and/or the drive assembly Disconnect (i.e. disengage). In this embodiment, the first connecting rod 61 is pulled outward, and the transmission gear 4 moves outward so that the transmission gear 4 disengages from the rack 3 and the motor gear 21 at the same time. The operating assembly 6 of the present invention can amplify the force acting on the operating assembly 6 through the design of the first link 61 and the second link 62 , and the operator can easily pull out the operating lever. In addition, the structure is simple to manufacture, convenient to install, and low in production cost.
具体地，第一连杆61与齿轮连杆5以及第二连杆62与第一连杆61和壳体1分别通过枢轴转动连接。Specifically, the first connecting rod 61 is connected to the gear connecting rod 5 and the second connecting rod 62 is connected to the first connecting rod 61 and the housing 1 through pivots, respectively.
进一步地，手动复位机构还包括固定设置在壳体1内的配合部91，参见图4、图5、图9和图10，配合部91位于齿条3和操作组件6之间，当传动齿轮4与齿条3和驱动组件相啮合时，配合部91与第一连杆61和/或第二连杆62相接触，从而与操作组件6配合形成力传递的死点，使手柄能够保持在锁定状态，即便传动齿轮4上具有较大的侧向力，也不会将手柄意外解锁，稳定性佳。本实施例中，参见图4和图5，当传动齿轮4与齿条3和驱动组件相啮合时，配合部91与第二连杆62相接触。本实施例中，配合部91为凸块，凸块的自由端呈弧形。Further, the manual reset mechanism also includes a fitting part 91 fixedly arranged in the casing 1, see Fig. 4, Fig. 5, Fig. 9 and Fig. 10, the fitting part 91 is located between the rack 3 and the operating assembly 6, when the transmission gear 4 When meshing with the rack 3 and the driving assembly, the matching part 91 contacts the first connecting rod 61 and/or the second connecting rod 62, thereby cooperating with the operating assembly 6 to form a dead point of force transmission, so that the handle can be kept at In the locked state, even if there is a relatively large lateral force on the transmission gear 4, the handle will not be unlocked accidentally, and the stability is good. In this embodiment, referring to FIG. 4 and FIG. 5 , when the transmission gear 4 is engaged with the rack 3 and the drive assembly, the matching portion 91 is in contact with the second connecting rod 62 . In this embodiment, the matching portion 91 is a bump, and the free end of the bump is arc-shaped.
为了便于操作者操作操作组件6，操作组件6可暴露于壳体1。具体地，操作组件6外侧的壳体1上具有镂空的操作窗口14，操作窗口14上可选择性地贴纸覆盖，或者也可设置开闭的组件遮盖该操作窗口14。In order to facilitate the operator to operate the operation assembly 6 , the operation assembly 6 can be exposed to the casing 1 . Specifically, the casing 1 outside the operation assembly 6 has a hollow operation window 14 , which can be selectively covered with a sticker, or an opening and closing assembly can also be provided to cover the operation window 14 .
参见图13，齿轮连杆5包括远端部51和近端部52，其中，远端部51具有容置传动齿轮4的容纳区域511，传动齿轮4通过枢轴转动地设置在容纳区域511内。近端部52通过枢轴转动地设置在壳体1内，近端部52上连接有上述第一连杆61，并且第一连杆61与齿轮连杆5之间的第二转动轴心线b位于第一转动轴心线a的外侧。当手柄由锁定状态转换成解锁状态时，第一转动轴心线a和第二转动轴心线b所在的平面与齿条3轴线(齿条3轴线沿x方向延伸)之间的夹角γ逐渐减小(参见图5和图10)。作为优选，当手柄处于锁定状态时，第一转动轴心线a和第二转动轴心线b所在的平面与齿条3轴线之间的夹角γ约90°，具体为90°±5°。Referring to FIG. 13 , the gear link 5 includes a distal end portion 51 and a proximal end portion 52, wherein the distal end portion 51 has an accommodating area 511 for accommodating the transmission gear 4, and the transmission gear 4 is pivotally arranged in the accommodating area 511 . The proximal part 52 is pivotally arranged in the housing 1, the proximal part 52 is connected with the above-mentioned first connecting rod 61, and the second rotation axis between the first connecting rod 61 and the gear connecting rod 5 b is located outside the first axis of rotation a. When the handle is converted from the locked state to the unlocked state, the angle γ between the plane where the first rotation axis a and the second rotation axis b are located and the axis of the rack 3 (the axis of the rack 3 extends along the x direction) gradually decreases (see Figure 5 and Figure 10). Preferably, when the handle is in the locked state, the angle γ between the plane where the first rotation axis a and the second rotation axis b are located and the axis of the rack 3 is about 90°, specifically 90°±5° .
进一步地，近端部52远离远端部51的端面为近端面521，该近端面521为平面。近端部52的外侧具有凹槽522。Further, the end surface of the proximal portion 52 away from the distal portion 51 is a proximal surface 521 , and the proximal surface 521 is a plane. The outer side of the proximal portion 52 has a groove 522 .
手柄还包括保持组件7，主要用于使传动齿轮4与齿条3和/或驱动组件保持脱离连接状态，即使手柄保持解锁状态。The handle also includes a retaining assembly 7, which is mainly used to keep the transmission gear 4 in a disconnected state from the rack 3 and/or the drive assembly, even if the handle remains in an unlocked state.
具体地，参见图2和图5，保持组件7包括绕第五转动轴心线e转动地设置在壳体1内的保持挂钩71以及扭簧72，扭簧72的一端臂固定设置在壳体1内，另一端臂固定连接在保持挂钩71上。当手柄处于锁定状态时，参见图5，保持挂钩71抵设在齿轮连杆5的近端面521上；当手柄处于解锁状态时，参见图10，保持挂钩71的勾部711插入齿轮连杆5近端部52的凹槽522内，使得齿轮连杆5的远端部51具有向外运动的趋势。Specifically, referring to Fig. 2 and Fig. 5, the holding assembly 7 includes a holding hook 71 and a torsion spring 72 which are rotatably arranged in the casing 1 around the fifth rotation axis e, and one end arm of the torsion spring 72 is fixedly arranged on the casing. 1, the other end arm is fixedly connected to the retaining hook 71. When the handle is in the locked state, see Figure 5, the holding hook 71 is abutted against the proximal end surface 521 of the gear connecting rod 5; when the handle is in the unlocked state, see Figure 10, the hook 711 of the holding hook 71 is inserted into the gear connecting rod 5 in the groove 522 of the proximal portion 52, so that the distal portion 51 of the gear connecting rod 5 has a tendency to move outward.
进一步地，近端部52的凹槽522具有与保持挂钩71的勾部711相适配的配合面523。作为优选，该配合面523为平面，便于挂钩的插入与脱离。Further, the groove 522 of the proximal portion 52 has a mating surface 523 adapted to the hook portion 711 of the holding hook 71 . Preferably, the mating surface 523 is a plane, which facilitates the insertion and removal of the hook.
手柄还包括回退组件。回退组件连接在齿条3上，当传动齿轮4与齿条3和/或驱动组件处于脱离连接状态时，操作回退组件可使齿条3前进或后退。The handle also includes a fallback component. The retracting assembly is connected to the rack 3. When the transmission gear 4 is disconnected from the rack 3 and/or the driving assembly, the retracting assembly can be operated to make the rack 3 move forward or backward.
具体地，参见图1、图3，回退组件包括回退拉杆8，回退拉杆8固定连接在齿条3上且一端伸出于壳体1，壳体1具有沿前后方向x延伸的滑槽13，回退拉杆8位于滑槽13内且能够在滑槽13内滑动。作为优选，回退拉杆8伸出于壳体1的一端具有便于操作者拉动的手持部，手持部的形状可以根据需求进行设定，不作具体限制。Specifically, referring to Fig. 1 and Fig. 3, the retraction assembly includes a retraction rod 8, which is fixedly connected to the rack 3 and has one end protruding from the housing 1, and the housing 1 has a slide extending along the front-rear direction x The slot 13, the retracting pull rod 8 is located in the sliding slot 13 and can slide in the sliding slot 13. As a preference, one end of the retraction rod 8 protruding from the housing 1 has a hand-held part that is easy for the operator to pull. The shape of the hand-held part can be set according to requirements and is not specifically limited.
手柄还包括固定安装在壳体1内的机架9，机架9沿前后方向x延伸且与齿条3互不干涉。齿轮连杆5、操作组件6、保持组件7以及配合部91分别设置在机架9上。进一步地，机架9位于齿条3与齿轮连杆5、操作组件6、保持组件7以及配合部91之间。The handle also includes a frame 9 fixedly installed in the housing 1 , the frame 9 extends along the front-rear direction x and does not interfere with the rack 3 . The gear connecting rod 5 , the operating assembly 6 , the holding assembly 7 and the matching portion 91 are respectively arranged on the frame 9 . Further, the frame 9 is located between the rack 3 and the gear connecting rod 5 , the operating assembly 6 , the holding assembly 7 and the matching portion 91 .
壳体1包括可拆卸连接的第一外壳11和第二外壳12，其中操作窗口14位于第一外壳11上，滑槽13形成在第一外壳11与第二外壳12之间且位于壳体1上方的中间部分。The housing 1 includes a first housing 11 and a second housing 12 that are detachably connected, wherein the operation window 14 is located on the first housing 11 , and the sliding slot 13 is formed between the first housing 11 and the second housing 12 and is located on the housing 1 upper middle part.
上述吻合器或手柄至少具有如下优点：The above-mentioned stapler or handle has at least the following advantages:
1)操作简单省力：通过使传动齿轮沿径向脱开与齿条和电机齿轮的啮合，不存在沿轴向移动时侧向力导致的巨大摩擦力，同时通过第一连杆和第二连杆等的设计，可带来的力的放大作用，用户可以轻易将第一连杆拉出，使传动齿轮与电机齿轮和齿条脱开啮合，进而便于手动拉回齿条和切割刀。1) Simple and labor-saving operation: By disengaging the transmission gear from the rack and the motor gear in the radial direction, there is no huge friction force caused by the lateral force when moving in the axial direction, and at the same time through the first connecting rod and the second connecting rod The design of the rod, etc., can bring about the magnification of the force, and the user can easily pull out the first connecting rod, so that the transmission gear is disengaged from the motor gear and the rack, and then it is convenient to manually pull back the rack and the cutting knife.
2)可靠性高：锁定状态下通过操作组件、齿轮连杆以及配合部的配合形成力传递的死点，即便传动齿轮上具有较大的侧向力，也不会将装置意外解锁。2) High reliability: In the locked state, the dead point of force transmission is formed through the cooperation of the operation component, the gear connecting rod and the matching part. Even if there is a large lateral force on the transmission gear, the device will not be accidentally unlocked.
3)自动锁定：传动齿轮脱开啮合后，可被自动锁定在脱开位置，便于手动操作拉回齿条，同时避免了故障器械被二次使用的风险。3) Automatic locking: After the transmission gear is disengaged, it can be automatically locked in the disengaged position, which is convenient for manual operation to pull back the rack, and at the same time avoids the risk of secondary use of faulty instruments.
4)生产成本低：采用多个连杆相配合的结构，制造简单、安装方便且成本较低。4) Low production cost: a structure in which a plurality of connecting rods cooperate is adopted, which is simple to manufacture, easy to install and low in cost.
以上对本发明做了详尽的描述，其目的在于让熟悉此领域技术的人士能够了解本发明的内容并加以实施，并不能以此限制本发明的保护范围，凡根据本发明的精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围内。The present invention has been described in detail above, and its purpose is to allow those familiar with this field to understand the content of the present invention and implement it, and can not limit the protection scope of the present invention with this. Effect changes or modifications should be covered within the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310555135.3ACN116616845B (en) | 2023-05-17 | 2023-05-17 | Handle with manual reset mechanism and anastomat |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310555135.3ACN116616845B (en) | 2023-05-17 | 2023-05-17 | Handle with manual reset mechanism and anastomat |
| Publication Number | Publication Date |
|---|---|
| CN116616845Atrue CN116616845A (en) | 2023-08-22 |
| CN116616845B CN116616845B (en) | 2025-09-19 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310555135.3AActiveCN116616845B (en) | 2023-05-17 | 2023-05-17 | Handle with manual reset mechanism and anastomat |
| Country | Link |
|---|---|
| CN (1) | CN116616845B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117562624A (en)* | 2023-11-28 | 2024-02-20 | 宝玛医疗科技(无锡)有限公司 | Electric stapler |
| CN119523556A (en)* | 2025-01-20 | 2025-02-28 | 天津瑞奇外科器械股份有限公司 | A surgical instrument and a manual resetting unit adapted for the surgical instrument |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080237298A1 (en)* | 2007-03-28 | 2008-10-02 | Schall Christopher J | Surgical stapling and cutting instrument with manually retractable firing member |
| CN211633428U (en)* | 2020-02-21 | 2020-10-09 | 常州麦斯姆机电有限公司 | One-way locking and separating reset device of electric anastomat |
| CN211633427U (en)* | 2020-02-21 | 2020-10-09 | 常州麦斯姆机电有限公司 | One-way locking and separating reset device of electric anastomat |
| CN212297468U (en)* | 2020-08-13 | 2021-01-05 | 武汉智瓴医疗科技有限公司 | Emergent actuating structure of electronic surgical instrument |
| CN213465172U (en)* | 2020-08-08 | 2021-06-18 | 麦德莱(苏州)医疗科技有限公司 | Manual knife returning device and electric anastomat |
| US20220054125A1 (en)* | 2019-02-21 | 2022-02-24 | Ezisurg Medical Co. Ltd. | Reset mechanism, stapler, and medical device |
| US20220296234A1 (en)* | 2021-03-22 | 2022-09-22 | Ethicon Llc | Surgical stapling instrument comprising a retraction system |
| CN115462852A (en)* | 2022-09-21 | 2022-12-13 | 常州安康医疗器械有限公司 | Transmission mechanism and electric endoscope anastomat |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080237298A1 (en)* | 2007-03-28 | 2008-10-02 | Schall Christopher J | Surgical stapling and cutting instrument with manually retractable firing member |
| US20220054125A1 (en)* | 2019-02-21 | 2022-02-24 | Ezisurg Medical Co. Ltd. | Reset mechanism, stapler, and medical device |
| CN211633428U (en)* | 2020-02-21 | 2020-10-09 | 常州麦斯姆机电有限公司 | One-way locking and separating reset device of electric anastomat |
| CN211633427U (en)* | 2020-02-21 | 2020-10-09 | 常州麦斯姆机电有限公司 | One-way locking and separating reset device of electric anastomat |
| CN213465172U (en)* | 2020-08-08 | 2021-06-18 | 麦德莱(苏州)医疗科技有限公司 | Manual knife returning device and electric anastomat |
| CN212297468U (en)* | 2020-08-13 | 2021-01-05 | 武汉智瓴医疗科技有限公司 | Emergent actuating structure of electronic surgical instrument |
| US20220296234A1 (en)* | 2021-03-22 | 2022-09-22 | Ethicon Llc | Surgical stapling instrument comprising a retraction system |
| CN115462852A (en)* | 2022-09-21 | 2022-12-13 | 常州安康医疗器械有限公司 | Transmission mechanism and electric endoscope anastomat |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117562624A (en)* | 2023-11-28 | 2024-02-20 | 宝玛医疗科技(无锡)有限公司 | Electric stapler |
| CN119523556A (en)* | 2025-01-20 | 2025-02-28 | 天津瑞奇外科器械股份有限公司 | A surgical instrument and a manual resetting unit adapted for the surgical instrument |
| CN119523556B (en)* | 2025-01-20 | 2025-04-29 | 天津瑞奇外科器械股份有限公司 | Surgical instrument and manual resetting unit adapting to same |
| Publication number | Publication date |
|---|---|
| CN116616845B (en) | 2025-09-19 |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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