技术领域technical field
本实用新型涉及医疗器械领域，尤其涉及一种可单手操作的双联推注系统。The utility model relates to the field of medical equipment, in particular to a double injection injection system which can be operated by one hand.
背景技术Background technique
目前，使用单筒注射器难以实现对两种液体药剂进行即时混合以达到适合的治疗效果，尤其是对于一些在混匀后短时间内会发生物理或化学性质变化的药剂，这种情况下通常需要使用双联注射器混合并注射。由于需要将不同的药剂抽取至注射器中，双联混合注射器不宜设计成整体不可拆卸的结构。进一步地，由于双联混合器主要是供临床医生在手术中使用，对其操作的简便性和组装的快捷性都有较高的要求，最好是能够让操作者单手推注。同时，连接部位的稳固性也很重要，在推动液体药剂混合的过程中，如果连接部位脱离会导致混合液污染，甚至产生更严重的后果。At present, it is difficult to achieve instant mixing of two liquid medicaments with a single-barrel syringe to achieve a suitable therapeutic effect, especially for some medicaments whose physical or chemical properties will change in a short time after mixing. In this case, it is usually necessary to Mix and inject using a dual syringe. Due to the need to extract different medicaments into the syringe, the double mixing syringe should not be designed as an integral non-detachable structure. Furthermore, since the dual mixer is mainly used by clinicians during surgery, there are high requirements for its ease of operation and quick assembly, and it is best to allow the operator to inject it with one hand. At the same time, the stability of the connection part is also very important. During the process of promoting the mixing of liquid medicaments, if the connection part is detached, it will cause contamination of the mixed liquid, or even more serious consequences.
如现有技术CN216777669U提出的一种双联混合注射器，包括两个注射器和一个四通接头，四通接头具有两个接入口和两个出口，两个接入口各与一个注射器的注射口可拆卸式固定连接，两个出口分别与输注针头和喷雾针头可拆卸式固定连接，所述四通接头内部设有阀门，通过切换阀门使两个接入口在同一时间仅与一个出口连通。该实用新型所述的双联混合注射器在手术过程中仅调整阀门即可改变输注方式，无需更换针头，操作简便，降低了药液被污染的风险。但由于该装置的输入口和输出口形成的流道存在直角转角，对于药液存在较大的流动阻碍也不利于药液的均匀混合。同时，该装置在宽度方向上结构不够精简，大大降低了操作便利性。For example, a dual-mixing syringe proposed in the prior art CN216777669U includes two syringes and a four-way joint, the four-way joint has two inlets and two outlets, and each of the two inlets is detachable from the injection port of a syringe The two outlets are fixedly connected to the infusion needle and the spray needle respectively, and a valve is arranged inside the four-way joint, and the two inlets are only connected to one outlet at the same time by switching the valve. The double mixing syringe described in the utility model can change the infusion mode only by adjusting the valve during the operation, without changing the needle, is easy to operate, and reduces the risk of contamination of the medicinal solution. However, due to the presence of a right-angle corner in the flow channel formed by the input port and the output port of the device, there is a large flow resistance for the liquid medicine and it is not conducive to the uniform mixing of the liquid medicine. At the same time, the structure of the device in the width direction is not simple enough, which greatly reduces the convenience of operation.
如现有技术CN213491185U提出的一种双联混合注射器，包括用于支撑的机架装置，所述机架装置内对称安装有2个预制装置，所述机架装置一侧安装有用于施力的推力装置。但该实用新型的架体呈框架式，不便于注射器的安装和拆卸。该装置整体长度较长，尤其是推力板较长，不便于收纳的同时也不利于手持和单手操作。A double mixing injector as proposed in the prior art CN213491185U includes a frame device for support, two prefabricated devices are symmetrically installed in the frame device, and a force-applying device is installed on one side of the frame device. thrust device. But the support body of this utility model is frame type, is not convenient to the installation and dismounting of syringe. The overall length of the device is relatively long, especially the thrust plate is relatively long, which is inconvenient for storage and also unfavorable for hand-holding and one-handed operation.
针对上述现有技术存在的缺陷，本实用新型提供了一种结构紧凑、组装便捷、操作方便的可单手操作的双联推注系统。Aiming at the above-mentioned defects in the prior art, the utility model provides a double injection injection system which is compact in structure, convenient in assembly and convenient in operation and can be operated by one hand.
此外，一方面由于对本领域技术人员的理解存在差异；另一方面由于申请人做出本实用新型时研究了大量文献和专利，但篇幅所限并未详细罗列所有的细节与内容，然而这绝非本实用新型不具备这些现有技术的特征，相反本实用新型已经具备现有技术的所有特征，而且申请人保留在背景技术中增加相关现有技术之权利。In addition, on the one hand, due to differences in the understanding of those skilled in the art; It is not that the utility model does not possess the characteristics of these prior art, on the contrary, the utility model already possesses all the characteristics of the prior art, and the applicant reserves the right to add relevant prior art in the background technology.
实用新型内容Utility model content
针对现有技术之不足，本实用新型提供了一种双联推注系统，尤其是一种可单手操作的双联推注系统，其包括推注头、卡具、混匀器和锁紧件，各部件采用空间上相互独立、尺寸上相互配合的分体式设计。Aiming at the deficiencies of the prior art, the utility model provides a dual injection injection system, especially a dual injection injection system that can be operated with one hand, which includes an injection head, a fixture, a mixer and a locking Each part adopts a split design that is independent in space and cooperates in size.
优选地，所述推注头包括具有不同宽度的第一挡板、第二挡板、第三挡板和U形半包围的连接侧板，所述第一挡板、第二挡板和第三挡板由所述连接侧板相互连接且三者互相具有高度差，所述第二挡板和第三挡板的开口侧边缘配置为圆形缺口的形式。Preferably, the injection head includes a first baffle plate, a second baffle plate, a third baffle plate and a U-shaped semi-enclosed connecting side plate with different widths, the first baffle plate, the second baffle plate and the second baffle plate The three baffles are connected to each other by the connecting side plate and have a height difference among them, and the opening side edges of the second baffle and the third baffle are configured in the form of circular notches.
优选地，所述第一挡板和第二挡板构成了用以容置第一注射器的活塞柄的第一容槽，所述第二挡板面向第三挡板的表面上设置有限位栅板用以增加第二挡板与第三挡板之间的高度差，所述限位栅板与所述第三挡板构成了用以容置第二注射器的活塞柄的第二容槽，进一步地，所述第一容槽和所述第二容槽具有第一高度差。Preferably, the first baffle and the second baffle form a first cavity for accommodating the piston handle of the first syringe, and a limit grid is arranged on the surface of the second baffle facing the third baffle. The plate is used to increase the height difference between the second baffle plate and the third baffle plate, and the limiting grid plate and the third baffle plate form a second cavity for accommodating the piston handle of the second syringe, Further, the first container and the second container have a first height difference.
优选地，所述第一容槽和所述第二容槽的深度与注射器活塞柄的厚度配置为过盈配合。Preferably, the depth of the first groove and the second groove and the thickness of the plunger handle of the syringe are configured as an interference fit.
优选地，所述第一挡板的面向操作者的表面上还设置有防滑纹。Preferably, anti-slip lines are also provided on the surface of the first baffle facing the operator.
优选地，所述卡具配置有用以容置第一注射器筒体的第一容置部和用以容置第二注射器筒体的第二容置部，所述第一容置部和第二容置部延伸方向互相平行且二者的入口端面具有不同的水平高度，即二者具有第二高度差。Preferably, the fixture is configured with a first accommodating portion for accommodating the first syringe cylinder and a second accommodating portion for accommodating the second syringe cylinder, the first accommodating portion and the second accommodating portion The extending directions of the accommodating parts are parallel to each other and the inlet end faces of the two accommodating parts have different horizontal heights, that is, the two accommodating parts have a second height difference.
优选地，所述第一容置部配置为容置通孔，所述第二容置部配置为容置凹槽。Preferably, the first accommodating portion is configured as an accommodating through hole, and the second accommodating portion is configured as an accommodating groove.
优选地，所述容置通孔的入口端面上配置有U形半包围式的限位挡板以抬高所述容置通孔的入口端的水平高度从而形成了所述容置通孔和所述容置凹槽入口端面的高度差，进一步地，当第一注射器和第二注射器分别置于所述容置通孔和所述容置凹槽中时，由于受到所述限位挡板的限制，第一注射器能够与第二注射器在高度方向上相互错开进而避免注射器凸缘之间的互相干涉。Preferably, a U-shaped semi-enclosed limit baffle is arranged on the entrance end of the accommodation through-hole to raise the level of the entrance of the accommodation through-hole so as to form the accommodation through-hole and the The height difference of the inlet end surface of the accommodating groove, further, when the first syringe and the second syringe are respectively placed in the accommodating through hole and the accommodating groove, due to the restriction of the limit baffle Limitation, the first syringe and the second syringe can be staggered in the height direction so as to avoid mutual interference between the syringe flanges.
优选地，所述容置通孔的直径和所述第一注射器的筒体直径间隙配合，所述容置凹槽的直径和所述第二注射器的筒体直径过盈配合。Preferably, the diameter of the accommodating through hole is in clearance fit with the diameter of the barrel of the first syringe, and the diameter of the accommodating groove is in interference fit with the diameter of the barrel of the second syringe.
优选地，所述卡具在厚度方向上配置有凸沿以便于操作者用食指和中指夹住卡具时利用凸沿来固定注射器本体。Preferably, the clamp is provided with a convex edge in the thickness direction so that the operator can use the convex edge to fix the syringe body when clamping the clamp with the index finger and middle finger.
优选地，所述混匀器包括第一流道、第二流道、混合部和输出部，其中第一流道和第二流道的入口端具有第三高度差且分别设有第一连接口与第二连接口，所述第一连接口和第二连接口与第一注射器和第二注射器的乳头是可拆卸式密封连接的，所述第一连借口和第二连接口优选为与注射器乳头和流道直径相互配合的鲁尔接口。Preferably, the mixer includes a first flow channel, a second flow channel, a mixing part and an output part, wherein the inlet ends of the first flow channel and the second flow channel have a third height difference and are respectively provided with a first connection port and a The second connection port, the first connection port and the second connection port are detachably connected to the nipples of the first syringe and the second syringe, and the first connection port and the second connection port are preferably connected to the nipples of the syringes. Luer fittings to match flow channel diameter.
优选地，所述第一流道和第二流道通过连接板进行连接固定以防止在药液推注的过程中由于药液流动的反作用力而导致流道管体出现旋转现象。Preferably, the first flow channel and the second flow channel are connected and fixed by a connecting plate to prevent the rotation of the flow channel tube body due to the reaction force of the flow of the medical liquid during the injection of the medical liquid.
优选地，所述第一流道和第二流道均配置为具有圆形的截面的流道形式，其中第一流道配置为平直流道；为保证药液通过两个流道流至混合部的路程相等，第二流道配置为具有钝角拐角的折弯形式以实现距离补偿从而保证药液在混合部能够对等混合。Preferably, both the first flow channel and the second flow channel are configured in the form of a flow channel with a circular cross section, wherein the first flow channel is configured as a flat flow channel; in order to ensure that the liquid medicine flows through the two flow channels to the The distances are equal, and the second flow channel is configured in a bent form with obtuse corners to realize distance compensation so as to ensure equal mixing of the liquid medicine in the mixing part.
优选地，所述混合部具有一定长度以保证药液能够充分混合，混合部的出口端配置为以可拆卸式密封连接的方式与注射针头头的针座相连的圆锥形输出部，所述输出部优选采用国标设计6:100的圆锥接头形式，所述可拆卸式密封连接方式优选采用鲁尔接头进行连接。Preferably, the mixing part has a certain length to ensure that the liquid medicine can be fully mixed, and the outlet end of the mixing part is configured as a conical output part connected to the needle seat of the injection needle head in a detachable sealed connection, the output The part preferably adopts the national standard design 6:100 conical joint form, and the detachable sealed connection method is preferably connected by a Luer joint.
优选地，所述第一高度差、第二高度差和第三高度差均相等。Preferably, the first height difference, the second height difference and the third height difference are all equal.
优选地，所述第一容槽、所述容置通孔和所述第一流道处于同一安装中心线，所述第二容槽、所述容置凹槽和所述第二流道的入口段处于同一安装中心线。Preferably, the first container, the accommodating through hole and the first flow channel are on the same installation center line, and the second container, the accommodating groove and the inlet of the second flow channel The segments are on the same installation centerline.
优选地，所述混合部的出口端上配置有锁紧件，当注射针头的针座与输出部连接时，锁紧件可以将的针座进一步锁紧，从而防止使用时注射针头脱落或液体泄漏。Preferably, a locking piece is arranged on the outlet end of the mixing part. When the needle seat of the injection needle is connected with the output part, the locking piece can further lock the needle seat, so as to prevent the injection needle from falling off or liquid leakage.
本实用新型的有益效果有：The beneficial effects of the utility model have:
本实用新型的推注头、卡具、混匀器和锁紧件均为分体式部件，在组装时不会由于本体结构过大而受到限制。进一步地，本实用新型的组装过程也非常简单，只需将第一注射器和第二注射器分别第一容置部和第二容置部中，再把两注射器的乳头与混匀器的第一连接口和第二连接口相接，然后将两注射器的活塞柄插入推注头的第一容槽和第二容槽中，最后将注射针头与混匀器的输出部连接再辅以锁紧件进一步固定，至此，组装过程完成。可见，本实用新型具有组装便捷的有益效果。The injection head, fixture, mixer and locking part of the utility model are all split parts, and will not be restricted due to the oversized body structure during assembly. Further, the assembling process of the present utility model is also very simple, just put the first syringe and the second syringe into the first accommodating part and the second accommodating part respectively, and then put the nipples of the two syringes into the first accommodating part of the mixer. The connection port is connected with the second connection port, and then the piston handles of the two syringes are inserted into the first and second cavities of the injection head, and finally the injection needle is connected to the output part of the mixer and then locked The parts are further fixed, so far, the assembly process is completed. It can be seen that the utility model has the beneficial effect of convenient assembly.
本实用新型的高度差设计使得第一注射器和第二注射器可以在高度方向上错开摆放从而避免了两注射器的凸缘之间互相抵触进而使得两注射器的间隔距离更小，这也就意味着卡具、推注头和混匀器都可以具有更小的宽度尺寸以便于操作者的单手操作。除此之外，卡具配置有凸沿，操作者在单手操作时可以用拇指按住推注头、食指和中指夹住卡具，利用这两侧的凸沿来固定注射器本体、实现推注。可见，本实用新型具有结构紧凑、可单手操作的有益效果。The height difference design of the utility model enables the first syringe and the second syringe to be staggered in the height direction so as to avoid mutual interference between the flanges of the two syringes and make the distance between the two syringes smaller, which means that Fixtures, injector tips and mixers can all have smaller width dimensions for easier one-handed operation by the operator. In addition, the jig is equipped with a convex edge. When operating with one hand, the operator can use the thumb to press the injection head, index finger and middle finger to clamp the jig, and use the convex edges on both sides to fix the syringe body and realize injection injection. Note. It can be seen that the utility model has the beneficial effects of compact structure and one-handed operation.
附图说明Description of drawings
图1是本实用新型的一种可单手操作的双联推注系统的装配示意图；Fig. 1 is a schematic diagram of the assembly of a single-handed dual injection system of the present invention;
图2是本实用新型的一种可单手操作的双联推注系统的推注头结构示意图；Fig. 2 is a schematic diagram of the structure of the injection head of a double injection injection system that can be operated by one hand of the present invention;
图3是本实用新型的一种可单手操作的双联推注系统的卡具结构示意图；Fig. 3 is a structural schematic diagram of a fixture of a double injection injection system that can be operated with one hand in the present invention;
图4是本实用新型的一种可单手操作的双联推注系统的混匀器结构示意图。Fig. 4 is a structural schematic diagram of a mixer of a double injection injection system that can be operated by one hand in the present invention.
附图标记列表List of reference signs
100：推注头；101：第一挡板；102：第一容槽；103：第二挡板；104：限位栅板；105：第二容槽；106：第三挡板；107：连接侧板；108：防滑纹；200：卡具；201：容置通孔；202：容置凹槽；203：限位挡板；204：凸沿；300：混匀器；301：第一流道；302：第一连接口；303：第二流道；304：第二连接口；305：连接板；306：混合部；307：输出部；400：锁紧件；401：锁母；500：第一注射器；501：第二注射器；503：注射器活塞柄；504：注射针头；505：针座。100: injection head; 101: first baffle; 102: first tank; 103: second baffle; 104: limit grid; 105: second tank; 106: third baffle; 107: Connection side plate; 108: anti-slip pattern; 200: fixture; 201: through hole for accommodation; 202: accommodation groove; 203: limit baffle; 204: convex edge; 300: mixer; 301: first-rate 302: first connection port; 303: second flow channel; 304: second connection port; 305: connecting plate; 306: mixing part; 307: output part; 400: locking piece; 401: lock nut; 500 : the first syringe; 501: the second syringe; 503: the plunger handle of the syringe; 504: the injection needle; 505: the needle seat.
具体实施方式Detailed ways
本申请中规定的任何方向仅为读者阅读方便而设置，并不对本申请做出相应的限制。在本实用新型的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“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实用新型和简化描述，而不是指示或暗示所指的设备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实用新型的限制。Any direction specified in this application is set only for the convenience of readers, and does not make a corresponding limitation on this application. In describing the present invention, it should be understood that the terms "central", "longitudinal", "transverse", "upper", "lower", "left", "right", "vertical", "horizontal" , "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the referred equipment or components Must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the invention.
本实用新型提供了一种可单手操作的双联推注系统，如图1所示，其包括推注头100、卡具200、混匀器300和锁紧件400，各部件采用空间上相互独立、尺寸上相互配合的分体式设计。The utility model provides a double injection injection system which can be operated by one hand, as shown in Fig. Split designs that are independent of each other and match each other in size.
根据一种优选的实施方式，如图2所示，推注头100包括第一挡板101、第二挡板103、第三挡板106和连接侧板107，第一挡板101、第二挡板103和第三挡板106通过U形半包围形式的连接侧板107连接在一起。其中，第一挡板101的开口侧边缘配置为圆形边缘，第二挡板103和第三挡板106的开口侧边缘配置为圆形缺口，该圆形缺口的形状适配于注射器的活塞柄的形状。进一步地，三个挡板具有不同的、依次递减的宽度尺寸，第一挡板101和第二挡板103构成了用以容置第一注射器500的活塞柄的第一容槽102，第二挡板103面向第三挡板106的表面上设置有用以增加第二挡板103与第三挡板106之间的高度差的若干个扁平立方体形式的限位栅板104，所述限位栅板104与所述第三挡板106构成了用以容置第二注射器501的活塞柄的第二容槽105。需要注意的是，为保证推注过程中两注射器受到同步一致的推力，第一挡板101和第二挡板103的高度差以及限位栅板104和第三挡板106的高度差正好是第一注射器500和第二注射器501的活塞柄的厚度，即第一容槽102和第二容槽105的深度与注射器活塞柄503的厚度处于过盈配合状态。为进一步方便操作，第一挡板101的面向操作者的表面上还设置有防滑纹108，例如在该表面上开设若干个矩形镂空以增加操作者手指和推注头100表面的摩擦力。According to a preferred embodiment, as shown in Figure 2, the injection head 100 includes a first baffle 101, a second baffle 103, a third baffle 106 and a connecting side plate 107, the first baffle 101, the second The baffle plate 103 and the third baffle plate 106 are connected together by a connecting side plate 107 in the form of a U-shaped semi-surrounding. Wherein, the opening side edge of the first baffle plate 101 is configured as a circular edge, and the opening side edges of the second baffle plate 103 and the third baffle plate 106 are configured as a circular notch, and the shape of the circular notch is adapted to the piston of the syringe. The shape of the handle. Further, the three baffles have different widths that are successively decreasing. The first baffle 101 and the second baffle 103 constitute the first cavity 102 for accommodating the piston handle of the first syringe 500, the second The surface of the baffle plate 103 facing the third baffle plate 106 is provided with several flat cube-shaped limit grid plates 104 for increasing the height difference between the second baffle plate 103 and the third baffle plate 106. The plate 104 and the third baffle 106 form a second cavity 105 for accommodating the piston handle of the second syringe 501 . It should be noted that, in order to ensure that the two syringes receive synchronous and consistent thrust during the injection process, the height difference between the first baffle plate 101 and the second baffle plate 103 and the height difference between the limit grid plate 104 and the third baffle plate 106 are exactly The thickness of the piston handles of the first syringe 500 and the second syringe 501 , that is, the depths of the first groove 102 and the second groove 105 are in an interference fit state with the thickness of the syringe piston handle 503 . For further convenience of operation, anti-skid lines 108 are provided on the surface of the first baffle 101 facing the operator, for example, several rectangular hollows are formed on the surface to increase the friction between the operator's fingers and the surface of the injection head 100 .
根据一种优选的实施方式，如图3所示，卡具200配置有用以容置第一注射器500筒体的容置通孔201和用以容置第二注射器501筒体的容置凹槽202，所述容置通孔201和容置凹槽202的延伸方向互相平行，二者的入口端面处在不同的水平高度上。所述容置通孔201通过限位挡板203来抬高入口端的水平高度，具体为，限位挡板203配置为具有一定高度的U形半包围的形式围挡在容置通孔201的入口端面一侧。当第一注射器500插入容置通孔201、第二注射器501卡入容置凹槽202时，第一注射器500的凸缘将卡在限位挡板203上从而与第二注射器501在高度方向上互相错开，即两注射器的凸缘不会互相抵靠发生干涉，这也就意味着两注射器可以有更近的间隔距离从而使得卡具200具有更小的宽度尺寸，例如当同时使用两个10mL注射器混合注射时，卡具200的宽度约在44mm左右，这个尺寸能够保证操作者进行单手推注操作。为保证第一注射器500能够顺利插入容置通孔201、第二注射器501能够稳固卡在容置凹槽202内，所述容置通孔201的直径与第一注射器500的筒体直径间隙配合，所述容置凹槽202的直径与第二注射器501的筒体直径间隙配合。进一步地，所述卡具200在厚度方向上还配置有凸沿204以便于操作者用食指和中指夹住卡具200时利用凸沿204来借力固定注射器本体。According to a preferred embodiment, as shown in FIG. 3 , the clamp 200 is configured with an accommodating through hole 201 for accommodating the barrel of the first syringe 500 and an accommodating groove for accommodating the barrel of the second syringe 501 202 , the extending directions of the accommodating through hole 201 and the accommodating groove 202 are parallel to each other, and the inlet end faces of the two are at different levels. The accommodating through hole 201 raises the horizontal height of the inlet end through the limit baffle 203, specifically, the limit baffle 203 is configured as a U-shaped semi-enclosed form with a certain height to surround the accommodating through hole 201. side of the entrance face. When the first syringe 500 is inserted into the accommodating through hole 201 and the second syringe 501 is snapped into the accommodating groove 202, the flange of the first syringe 500 will be stuck on the stopper 203 so as to be aligned with the second syringe 501 in the height direction. Stagger each other, that is, the flanges of the two syringes will not interfere with each other, which means that the two syringes can have a closer distance so that the clamp 200 has a smaller width dimension, for example, when two syringes are used at the same time When the 10mL syringe is used for mixed injection, the width of the jig 200 is about 44 mm, which can ensure the operator to perform one-handed injection operation. In order to ensure that the first syringe 500 can be smoothly inserted into the accommodating through hole 201 and that the second syringe 501 can be firmly locked in the accommodating groove 202, the diameter of the accommodating through hole 201 is in clearance fit with the cylinder diameter of the first syringe 500 , the diameter of the accommodating groove 202 is in clearance fit with the diameter of the barrel of the second syringe 501 . Further, the clamp 200 is also provided with a convex edge 204 in the thickness direction, so that the operator uses the convex edge 204 to fix the syringe body by force when clamping the clamp 200 with the index finger and middle finger.
根据一种优选的实施方式，如图4所示，混匀器300包括第一流道301、第二流道303、混合部306和输出部307，其中第一流道301和第二流道303的入口端具有高度差，该高度差与前述的第一容槽102和第二容槽105的高度差、容置通孔201和容置凹槽202入口端的高度差互相配合。在第一流道301和第二流道303的入口端处分别设有第一连接口302与第二连接口304，所述第一连接口302和第二连接口304与第一注射器500和第二注射器501的乳头是可拆卸式密封连接的，例如一般的注射器乳头均采用国标设计6:100的圆锥接头，相应地，第一连接口302和第二连接口304的内壁配置为标准6:100的圆锥纹接口。进一步地，所述第一连接口302和第二连接口304更优选为与注射器乳头尺寸、流道直径相互配合的鲁尔接口。According to a preferred embodiment, as shown in FIG. 4, the mixer 300 includes a first flow channel 301, a second flow channel 303, a mixing part 306 and an output part 307, wherein the first flow channel 301 and the second flow channel 303 The inlet end has a height difference, and the height difference is matched with the above-mentioned height difference between the first storage tank 102 and the second storage tank 105 , and the height difference between the receiving through hole 201 and the receiving groove 202 at the inlet end. A first connection port 302 and a second connection port 304 are respectively provided at the inlet ends of the first flow channel 301 and the second flow channel 303, and the first connection port 302 and the second connection port 304 are connected to the first syringe 500 and the second connection port 304. The nipples of the two syringes 501 are detachably sealed and connected. For example, the nipples of the general syringes all adopt the national standard design 6:100 conical joint. Correspondingly, the inner walls of the first connection port 302 and the second connection port 304 are configured as standard 6: 100 conical interface. Further, the first connection port 302 and the second connection port 304 are more preferably luer ports that match the size of the nipple of the syringe and the diameter of the flow channel.
根据一种优选的实施方式，如图1和图4所示，第一流道301和第二流道303均具有圆形的截面，其中第一流道301配置为平直流道。由于第一流道301和第二流道303的入口端具有高度差，为保证药液通过两个流道流至混合部306的路程相等，第二流道303配置为具有钝角拐角的折弯形式以实现距离补偿，从而保证药液在混合部能够对等混合，即第一连接口302到混合部306的距离与第二连接口302到混合部306的距离相同。进一步地，为减少第二流道303中的药液在混合部306与第一流道301中的药液汇合时的流动阻力，第二流道303与第一流道301以平滑的角度汇合连接。为防止在推注过程中由于药液流动的反作用力而出现的流道管体旋转现象，在第一流道301和第二流道303之间配置有连接板305对两流道进行连接固定。第一流道301和第二流道303汇合后形成混合部306，所述混合部306具有一定长度以保证药液能够充分混合，混合部306的出口端配置为以可拆卸式密封连接的方式与针座505相连的圆锥形的输出部307，所述输出部307优选采用国标设计6:100的圆锥接头形式，所述可拆卸式密封连接的方式优选为采用鲁尔接头连接输出部307和针座505。进一步地，所述混合部306的出口端上还配置有锁紧件400，当针座505与输出部307连接时，锁紧件400可以将针座505进一步锁紧，防止使用时脱落或液体泄漏，所述锁紧件400优选为PEEK材质的锁母401。According to a preferred embodiment, as shown in FIG. 1 and FIG. 4 , both the first flow channel 301 and the second flow channel 303 have a circular cross section, wherein the first flow channel 301 is configured as a flat flow channel. Due to the height difference between the inlet ends of the first flow channel 301 and the second flow channel 303, in order to ensure that the path of the liquid medicine flowing through the two flow channels to the mixing part 306 is equal, the second flow channel 303 is configured in a bent form with an obtuse corner To realize distance compensation, so as to ensure equal mixing of the medicinal liquid at the mixing part, that is, the distance from the first connection port 302 to the mixing part 306 is the same as the distance from the second connection port 302 to the mixing part 306 . Further, in order to reduce the flow resistance of the medical solution in the second flow channel 303 when the mixing part 306 merges with the medical solution in the first flow channel 301 , the second flow channel 303 and the first flow channel 301 are connected at a smooth angle. In order to prevent the rotation of the flow channel tube due to the reaction force of the liquid medicine flow during the bolus injection, a connecting plate 305 is arranged between the first flow channel 301 and the second flow channel 303 to connect and fix the two flow channels. The first flow channel 301 and the second flow channel 303 merge to form a mixing part 306, the mixing part 306 has a certain length to ensure that the liquid medicine can be fully mixed, and the outlet end of the mixing part 306 is configured to be in a detachable sealed connection with the The conical output part 307 connected to the needle seat 505, the output part 307 is preferably in the form of a conical joint with a national standard design of 6:100, and the detachable sealed connection is preferably connected to the output part 307 and the needle with a Luer connector. Block 505. Further, the outlet end of the mixing part 306 is also equipped with a locking member 400. When the needle holder 505 is connected to the output part 307, the locking member 400 can further lock the needle holder 505 to prevent it from falling off or liquid during use. leakage, the locking member 400 is preferably a lock nut 401 made of PEEK.
根据一种优选的实施方式，如图1～图4所示，本实用新型的组装步骤如下：首先将第一注射器500插入卡具200的容置通孔201中，下推第一注射器500直至其凸缘与限位挡板203互相抵靠，再把第二注射器501插入容置凹槽202中，调整第二注射器501的位置直至其凸缘与容置凹槽202的入口端互相抵靠；然后将第一注射器500和第二注射器501的乳头分别与混匀器300的第一连接口302和第二连接口304相接；再从将第一注射器500和第二注射器501的活塞柄从推注头100的开口一侧插入第一容槽102和第二容槽105之中；最后将注射针头504的针座505与混匀器300的输出部307连接起来，再将锁母401锁紧以进一步固定针座505。至此，本实用新型组装完成，操作者可进行单手推注操作，具体为，操作者用食指和中指夹住卡具200，利用卡具200两侧的凸沿204来借力并用拇指按住推注头100实现推注。此时第一容槽102、第一注射器500、容置通孔201和第一流道301处于同一安装中心线上，第二容槽105、第二注射器501、容置凹槽202和第二流道303的入口段处于同一安装中心线上。According to a preferred embodiment, as shown in Figures 1 to 4, the assembly steps of the present invention are as follows: first, insert the first syringe 500 into the accommodation through hole 201 of the jig 200, push down the first syringe 500 until The flange and the limit baffle 203 abut against each other, then insert the second syringe 501 into the accommodating groove 202, and adjust the position of the second syringe 501 until the flange and the inlet end of the accommodating groove 202 abut against each other Then the nipples of the first syringe 500 and the second syringe 501 are connected with the first connection port 302 and the second connection port 304 of the mixer 300 respectively; then the piston handle of the first syringe 500 and the second syringe 501 Insert the first container 102 and the second container 105 from the opening side of the injection head 100; finally connect the needle seat 505 of the injection needle 504 with the output part 307 of the mixer 300, and then connect the lock nut 401 Lock to further secure needle hub 505. So far, the utility model has been assembled, and the operator can perform one-handed push injection operation. Specifically, the operator clamps the fixture 200 with the index finger and middle finger, uses the convex edges 204 on both sides of the fixture 200 to borrow force and presses it with the thumb The bolus head 100 realizes bolus injection. At this time, the first container 102, the first syringe 500, the accommodating through hole 201 and the first flow channel 301 are on the same installation center line, and the second container 105, the second syringe 501, the accommodating groove 202 and the second flow channel are on the same installation center line. The entry sections of the lanes 303 are on the same installation centerline.
需要注意的是，上述具体实施例是示例性的，本领域技术人员可以在本实用新型公开内容的启发下想出各种解决方案，而这些解决方案也都属于本实用新型的公开范围并落入本实用新型的保护范围之内。本领域技术人员应该明白，本实用新型说明书及其附图均为说明性而并非构成对权利要求的限制。本实用新型的保护范围由权利要求及其等同物限定。It should be noted that the above-mentioned specific embodiments are exemplary, and those skilled in the art can come up with various solutions under the inspiration of the disclosure of the utility model, and these solutions also all belong to the disclosure scope of the utility model and fall within the scope of the utility model. Into the scope of protection of the present utility model. Those skilled in the art should understand that the description of the utility model and the accompanying drawings are illustrative rather than limiting the claims. The protection scope of the present utility model is defined by the claims and their equivalents.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320069802.2UCN219354918U (en) | 2023-01-10 | 2023-01-10 | A dual-injection system that can be operated with one hand |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320069802.2UCN219354918U (en) | 2023-01-10 | 2023-01-10 | A dual-injection system that can be operated with one hand |
| Publication Number | Publication Date |
|---|---|
| CN219354918Utrue CN219354918U (en) | 2023-07-18 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320069802.2UActiveCN219354918U (en) | 2023-01-10 | 2023-01-10 | A dual-injection system that can be operated with one hand |
| Country | Link |
|---|---|
| CN (1) | CN219354918U (en) |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | Effective date of registration:20250320 Address after:100000, 3rd Floor, Building 1, No. 100 Kechuang 6th Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee after:Qingyuan Taishuo (Beijing) Medical Equipment Co.,Ltd. Country or region after:China Address before:2011, 2nd Floor, Building B, East Side, No. 58 Dongbei Wangxi Road, Haidian District, Beijing, 100193 Patentee before:Qingyuan taishuo (Beijing) Biomedical Technology Co.,Ltd. Country or region before:China | |
| TR01 | Transfer of patent right |