技术领域technical field
本发明涉及医疗器械领域，具体地，涉及一种具有防误击发的保险机构的钉头组件以及具有该钉头组件的腔镜外科手术缝切装置。The invention relates to the field of medical instruments, in particular to a nail head assembly with a safety mechanism for preventing misfiring and a laparoscopic surgery sewing device with the nail head assembly.
背景技术Background technique
缝切装置被广泛用于外科手术中的伤口缝合、内部组织缝合与切割。外科手术发展至今，已经越来越倾向于微创手术。广义来讲，能够减少创伤的手术都称为微创手术；狭义来讲，微创手术是指在内窥镜下进行的手术。内窥镜下的手术一般只需要在病人的身体上开几个小孔，将切除、缝合组织及辅助的器械从小孔中深入病人体内进行手术。微创手术给病人带来的创伤小，病人可以在很短的时间内恢复，因此微创手术越来越受到人们的青睐。Suturing and cutting devices are widely used in wound suturing, internal tissue suturing and cutting in surgical operations. With the development of surgery, minimally invasive surgery has become more and more popular. In a broad sense, surgery that can reduce trauma is called minimally invasive surgery; in a narrow sense, minimally invasive surgery refers to surgery performed under an endoscope. The operation under the endoscope generally only needs to open several small holes on the patient's body, and the excision, suture tissue and auxiliary instruments are penetrated into the patient's body through the small holes to perform the operation. Minimally invasive surgery brings little trauma to patients, and patients can recover in a short period of time, so minimally invasive surgery is more and more popular.
现有技术中用于微创手术的腔镜外科手术用直线缝切装置，包括一器械本体，所述器械本体包括壳体及一枢轴设于壳体上的击发把手，该壳体内设有一个可相对移动的击发杆，所述击发杆能推动位于壳体前端的钉头组件进行缝合和切除。具体的，所述钉头组件包括一钉仓架，及一与钉仓架枢轴连接的钉砧。所述钉仓架上可拆卸地设有钉仓。所述钉头组件还包括一个可移动地设置在钉头组件的接管内的、与击发杆配接的推刀杆，所述推刀杆的远端固定一切刀，该切刀在前进的过程中将钉仓和钉砧闭合，将位于钉仓和钉砧间的组织切断，并驱动击发块将推钉片依次推出于钉仓外，进而推钉片将吻合钉推出于钉仓外并订合在组织上。In the prior art, a linear suturing device for endoscopic surgery used in minimally invasive surgery includes an instrument body, the instrument body includes a shell and a firing handle pivotally arranged on the shell, and the shell is provided with A relatively movable firing rod, the firing rod can push the nail head assembly located at the front end of the casing to suture and cut off. Specifically, the nail head assembly includes a staple cartridge frame and an anvil pivotally connected to the staple cartridge frame. The staple cartridge rack is detachably provided with a staple cartridge. The nail head assembly also includes a push knife rod that is movably arranged in the connecting pipe of the nail head assembly and matched with the firing rod. The distal end of the push knife rod fixes the cutting knife, and the cutting knife is During the process, the staple cartridge and the anvil are closed, the tissue located between the staple cartridge and the anvil is cut off, and the firing block is driven to push the staple pushers out of the staple cartridge in sequence, and then the staple pushers push the staples out of the staple cartridge and staple them combined in the organization.
现有技术中，钉仓组件需要安装至腔镜外科手术用缝切装置的器械平台即本体后才能进行手术。但是由于钉仓组件安装至腔镜吻合器的器械平台之前，在组装、包装和运输等环节中推刀杆可能会发生蹿动，从而推刀杆推动切刀移动，导致器械的误击发，而且推刀杆发生移位，也会导致器械平台不能与推刀杆正确安装，致使器械无法正常使用。In the prior art, the staple cartridge assembly needs to be installed on the instrument platform, ie, the body, of the slit-cutting device for endoscopic surgery before surgery can be performed. However, before the staple cartridge assembly is installed on the instrument platform of the endoscopic stapler, the pusher rod may move during assembly, packaging and transportation, so that the pusher rod pushes the cutter to move, resulting in false firing of the instrument, and The displacement of the push rod will also cause the instrument platform to not be installed correctly with the push rod, resulting in the failure of the normal use of the device.
发明内容Contents of the invention
本发明提供一种钉头组件以及腔镜外科手术缝切装置，可以有效防止推刀杆在组装、包装和运输等环节中出现蹿动，并防止器械的误击发。The invention provides a nail head assembly and a laparoscopic surgery sewing and cutting device, which can effectively prevent the jumping of the pusher rod in the links of assembly, packaging and transportation, and prevent false firing of the instrument.
根据本发明的一个方面，提供一种钉头组件，其特征在于，包括：钉仓架，可拆卸地设有钉仓；钉砧，可相对于钉仓枢转闭合；击发块，可移动地设置于所述钉仓内；连接管，其远端连接所述钉仓架的近端；推刀杆，可移动地设置于所述连接管内，所述推刀杆的近端设有第一卡挚部，所述推刀杆的远端设有切刀，所述切刀在所述推刀杆的推动下推动所述击发块移动；以及保险机构，连接所述连接管，所述保险机构包括：压块，所述压块上设有第二卡挚部，且所述压块可以相对所述连接管于第一位置与第二位置之间转动，当所述压块位于所述第一位置时，所述第二卡挚部与所述第一卡挚部卡接，所述推刀杆处于锁定状态无法移动，当所述压块转动至所述第二位置时，所述第二卡挚部与所述第一卡挚部脱离，所述推刀杆处于解锁状态，可纵向移动；和推块，设置于所述连接管的外周上，位于所述压块的一侧，且可相对所述连接管沿其纵向于第三位置与第四位置之间移动，当所述推块由所述第三位置移动至所述第四位置时，推动所述压块由所述第一位置转动至第二位置。According to one aspect of the present invention, a nail head assembly is provided, which is characterized in that it includes: a nail cartridge rack, detachably provided with a nail cartridge; an anvil, which can be pivotally closed relative to the nail cartridge; and a firing block, which is movably It is arranged in the described staple cartridge; the connecting pipe, its far end is connected to the proximal end of the described staple cartridge frame; The locking part, the far end of the push knife rod is provided with a cutting knife, and the cutting knife pushes the firing block to move under the push of the push knife rod; and the safety mechanism is connected to the connecting pipe, and the safety mechanism The mechanism includes: a pressing block, which is provided with a second locking part, and the pressing block can rotate between a first position and a second position relative to the connecting pipe, when the pressing block is located at the At the first position, the second locking part is engaged with the first locking part, and the pusher rod is in a locked state and cannot move. When the pressure block rotates to the second position, the The second locking part is disengaged from the first locking part, the push knife rod is in an unlocked state and can move longitudinally; and a pushing block is arranged on the outer circumference of the connecting pipe and is located on one side of the pressing block , and can move between the third position and the fourth position relative to the connecting pipe along its longitudinal direction, when the push block moves from the third position to the fourth position, push the pressure block by the The first position is rotated to the second position.
优选地，所述连接管的侧壁上设有沿其纵向延伸的第一限位槽，所述压块通过销轴连接于所述第一限位槽内，所述压块可绕所述销轴相对所述连接管转动。Preferably, the side wall of the connecting pipe is provided with a first limiting groove extending longitudinally thereof, the pressing block is connected in the first limiting groove through a pin shaft, and the pressing block can rotate around the The pin shaft rotates relative to the connecting pipe.
优选地，所述压块的近端通过所述销轴与所述连接管连接，所述第二卡挚部设置于所述压块的远端。Preferably, the proximal end of the pressing block is connected to the connecting pipe through the pin shaft, and the second locking part is arranged at the distal end of the pressing block.
优选地，所述连接管还设有沿其纵向延伸的第二限位槽，所述第二限位槽位于所述第一限位槽的一侧，且与所述第一限位槽相连通，所述推块设置于所述第二限位槽内，且可沿所述第二限位槽于所述第三位置与第四位置之间移动。Preferably, the connecting pipe is also provided with a second limiting groove extending longitudinally along it, the second limiting groove is located on one side of the first limiting groove and is connected to the first limiting groove In other words, the push block is disposed in the second limiting slot, and can move between the third position and the fourth position along the second limiting slot.
优选地，所述保险机构还包括：扭簧，连接所述压块和所述连接管，驱动所述压块由所述第二位置向所述第一位置转动；以及弹簧，连接所述推块和所述连接管，驱动所述推块由所述第四位置向所述第三位置方向移动。Preferably, the safety mechanism further includes: a torsion spring, connected to the pressure block and the connecting pipe, driving the pressure block to rotate from the second position to the first position; and a spring, connected to the push The block and the connecting pipe drive the push block to move from the fourth position to the third position.
优选地，所述弹簧的近端连接于所述推块的远端，所述弹簧的远端连接所述连接管。Preferably, the proximal end of the spring is connected to the distal end of the push block, and the distal end of the spring is connected to the connecting tube.
优选地，所述扭簧的一端连接所述压块，另一端连接所述连接管的内壁。Preferably, one end of the torsion spring is connected to the pressure block, and the other end is connected to the inner wall of the connecting pipe.
优选地，所述推块上的外表面设有第一引导部，所述压块的远端靠近所述推块一侧的侧壁上设有第二引导部，所述第二引导部置于所述推块的外表面上，当所述推块由所述第三位置移动至所述第四位置时，所述第一引导部推动第二引导部，使所述压块由所述第一位置旋转至所述第二位置。Preferably, a first guide portion is provided on the outer surface of the push block, and a second guide portion is provided on the side wall of the far end of the pressing block close to the push block, and the second guide portion is placed On the outer surface of the push block, when the push block moves from the third position to the fourth position, the first guide part pushes the second guide part, so that the pressure block moves from the The first position rotates to the second position.
优选地，所述第一引导部为一第一斜面，所述第一斜面朝向所述推块的远端且自远端朝向近端上升式倾斜。Preferably, the first guiding portion is a first slope, and the first slope is inclined towards the distal end of the push block and ascending from the distal end to the proximal end.
优选地，所述第二引导部为一凸设于所述压块的远端的侧壁上的凸块。Preferably, the second guiding portion is a protrusion protruding from the side wall of the distal end of the pressure block.
优选地，所述推刀杆的近端还设有第三引导部，当所述推刀杆向所述连接管的近端移动时，所述第三引导部引导所述压块由所述第一位置旋转至第二位置。Preferably, the proximal end of the pusher rod is further provided with a third guide part, and when the pusher rod moves to the proximal end of the connecting tube, the third guide part guides the pressing block to be moved by the The first position rotates to the second position.
优选地，所述第三引导部为一第二斜面，所述第二斜面朝向所述推刀杆近端，且自远端朝向近端下降式倾斜。Preferably, the third guiding portion is a second slope, the second slope faces the proximal end of the pusher rod, and slopes downwardly from the distal end toward the proximal end.
根据本发明的另一个方面，还包括一种腔镜外科手术缝切装置，其包括：本体，其特征在于，还包括上述钉头组件，所述钉头组件的连接管以及推刀杆与所述本体相连接。According to another aspect of the present invention, it also includes a laparoscopic surgical operation sewing device, which includes: a body, which is characterized in that it also includes the above-mentioned nail head assembly, the connecting pipe of the nail head assembly, the pusher rod and the connected to the ontology.
本发明通过提供一种钉头组件以及腔镜外科手术缝切装置，可以有效地防止钉仓组件安装至腔镜吻合器的器械平台之前，在组装、包装和运输等环节中推刀杆发生蹿动，能有效防止器械的误击发，而且可以确保手术前器械平台能够与推刀杆正确安装。The present invention provides a nail head assembly and an endoscopic surgery sewing and cutting device, which can effectively prevent the pusher bar from jumping during assembly, packaging, and transportation before the nail cartridge assembly is installed on the instrument platform of an endoscopic stapler. It can effectively prevent the false firing of the instrument, and can ensure that the instrument platform and the pusher rod can be correctly installed before the operation.
附图说明Description of drawings
通过阅读参照以下附图对非限制性实施例所作的详细描述，本发明的其它特征、目的和优点将会变得更明显：Other characteristics, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:
图1为本发明的钉头组件的立体图；Fig. 1 is the perspective view of nail head assembly of the present invention;
图2为本发明的钉头组件的分解图；Fig. 2 is an exploded view of the nail head assembly of the present invention;
图3a为本发明的钉头组件锁定状态下的立体图；Figure 3a is a perspective view of the nail head assembly of the present invention in a locked state;
图3b为图3a中A处的局部放大图；Figure 3b is a partial enlarged view of A in Figure 3a;
图4为本发明的钉头组件锁定状态下的压块与推刀杆的连接关系示意图；Fig. 4 is a schematic diagram of the connection relationship between the briquetting block and the pusher rod in the locking state of the nail head assembly of the present invention;
图5a为本发明的钉头组件解锁状态下的立体图；Figure 5a is a perspective view of the nail head assembly of the present invention in an unlocked state;
图5b为图5a中B处的局部放大图；以及Figure 5b is a partial enlarged view at B in Figure 5a; and
图6为本发明的钉头组件解锁状态下的压块与推刀杆的连接关系示意图。Fig. 6 is a schematic diagram of the connection relationship between the pressure block and the pusher rod in the unlocked state of the nail head assembly of the present invention.
具体实施方式Detailed ways
本发明内所描述的近端和远端，均是以器械操作者作为参照，靠近操作者的一端为近端，远离操作者的一端为远端。本发明中的纵向是指部件长度方向，大致从远端到近端的方向。本发明中的上方/上、下方/下、竖直、水平等对方向或位置的描述是以附图为例进行的说明，但根据需要也可以做出改变，所做改变均包含在本发明保护范围内。此外，术语第一、第二、第三、第四等仅用于描述目的，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。The proximal end and the distal end described in the present invention refer to the operator of the instrument, the end close to the operator is the proximal end, and the end far away from the operator is the distal end. The longitudinal direction in the present invention refers to the lengthwise direction of the component, generally the direction from the distal end to the proximal end. In the present invention, descriptions of directions or positions such as upper/upper, lower/lower, vertical, horizontal, etc. are described with the accompanying drawings as examples, but changes can also be made according to needs, and all changes are included in the present invention within the scope of protection. In addition, the terms first, second, third, fourth, etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
依据本发明主旨构思，钉头组件包括钉仓架、钉砧、钉仓、击发块、连接管、推刀杆、切刀以及保险机构。钉仓架可拆卸地设有钉仓；钉砧可相对于钉仓枢转闭合；击发块可移动地设置于所述钉仓内；连接管的远端连接所述钉仓架的近端；推刀杆可移动地设置于所述连接管内，所述推刀杆的近端设有第一卡挚部，所述推刀杆的远端设有切刀，所述切刀在所述推刀杆的推动下推动所述击发块移动；以及保险机构，连接所述连接管，所述保险机构包括：压块，所述压块上设有第二卡挚部，且所述压块可以相对所述连接管于第一位置与第二位置之间转动，当所述压块位于所述第一位置时，所述第二卡挚部与所述第一卡挚部卡接，所述推刀杆处于锁定状态无法移动，当所述压块转动至所述第二位置时，所述第二卡挚部与所述第一卡挚部脱离，所述推刀杆处于解锁状态，可纵向移动；和推块，设置于所述连接管近端的外周上，位于所述压块的一侧，且可相对所述连接管沿其纵向于第三位置与第四位置之间移动，当所述推块由所述第三位置移动至所述第四位置时，推动所述压块由所述第一位置转动至第二位置。According to the gist of the present invention, the nail head assembly includes a nail cartridge frame, an anvil, a nail cartridge, a firing block, a connecting pipe, a pusher rod, a cutter and a safety mechanism. The staple cartridge rack is detachably provided with a staple cartridge; the nail anvil can be pivotally closed relative to the staple cartridge; the firing block is movably arranged in the staple cartridge; the far end of the connecting tube is connected to the proximal end of the staple cartridge rack; The pusher rod is movably arranged in the connecting pipe, the proximal end of the pusher rod is provided with a first clamping part, and the far end of the pusher rod is provided with a cutting knife, and the cutting knife is arranged on the pusher rod. The triggering block is pushed to move under the push of the knife rod; and the safety mechanism is connected to the connecting pipe, and the safety mechanism includes: a pressing block, the pressing block is provided with a second locking part, and the pressing block can Rotate between the first position and the second position relative to the connecting pipe, when the pressing block is at the first position, the second locking part is engaged with the first locking part, and the The push rod is in a locked state and cannot move. When the pressing block rotates to the second position, the second locking part is disengaged from the first locking part, and the pushing rod is in an unlocked state. Longitudinal movement; and a push block, disposed on the outer circumference of the proximal end of the connecting tube, on one side of the pressing block, and movable relative to the connecting tube along its longitudinal direction between a third position and a fourth position, When the pushing block moves from the third position to the fourth position, the pressure block is pushed to rotate from the first position to the second position.
下面结合附图和实施例对本发明的技术内容进行进一步地说明：The technical content of the present invention is further described below in conjunction with accompanying drawing and embodiment:
请一并参见图1至图4，其分别示出了本发明的钉头组件的立体图、分解图、锁定状态下的立体图以及锁定状态下的压块与推刀杆的连接关系示意图。其中，由于钉头组件的钉仓架、钉砧、钉仓和击发块不是本发明的创新部分，因此，为了更清楚地显示钉头组件的结构，除图1外，其余附图中均省略了钉头组件的钉仓架、钉砧、钉仓以及击发块。在本发明的优选实施例中，钉头组件包括：钉仓架1、钉砧2、钉仓3、击发块(未示出)、连接管5、推刀杆6、切刀7以及保险机构。Please refer to FIG. 1 to FIG. 4 , which respectively show a perspective view, an exploded view, a perspective view in a locked state, and a schematic diagram of the connection relationship between the pressing block and the pusher rod in the locked state of the nail head assembly of the present invention. Wherein, since the nail cartridge frame, the nail anvil, the nail cartridge and the firing block of the nail head assembly are not innovative parts of the present invention, in order to show the structure of the nail head assembly more clearly, except for Fig. 1, all other drawings are omitted The staple cartridge rack, nail anvil, staple cartridge and firing block of the nail head assembly are installed. In a preferred embodiment of the present invention, the nail head assembly includes: a staple cartridge frame 1, an anvil 2, a staple cartridge 3, a firing block (not shown), a connecting pipe 5, a pusher rod 6, a cutter 7 and a safety mechanism .
如图1所示，钉砧2连接于钉仓架1的上方，优选地，钉砧2的近端与钉仓架1的近端枢轴连接。钉仓3设置于钉仓架1与钉砧2之间，且可拆卸地连接钉仓架1。钉仓2内设容纳有推钉片和吻合钉的置钉孔，一般为4排或6排置钉孔。As shown in FIG. 1 , the nail anvil 2 is connected above the staple cartridge rack 1 , preferably, the proximal end of the nail anvil 2 is pivotally connected with the proximal end of the staple cartridge rack 1 . The staple cartridge 3 is arranged between the staple cartridge frame 1 and the staple anvil 2 and is detachably connected to the staple cartridge frame 1 . The staple cartridge 2 is provided with staple holes for accommodating the pusher pieces and staples, generally 4 or 6 rows of staple holes.
连接管5的远端与钉仓架1的近端相连接。如图2所示，连接管5包括相互拼接的上支撑件51、下支撑件52以及套设于上支撑件51、下支撑件52外部的套管53。The distal end of the connecting tube 5 is connected with the proximal end of the staple cartridge rack 1 . As shown in FIG. 2 , the connecting pipe 5 includes an upper support member 51 , a lower support member 52 spliced with each other, and a sleeve 53 sleeved outside the upper support member 51 and the lower support member 52 .
连接管5的近端设有一第一限位槽54以及第二限位槽55。在图3a所示的优选实施中，第一限位槽54设置于上支撑件51近端的侧壁上。第二限位槽55设置于上支撑件51和下支撑件52拼接处的近端，第二限位槽55沿连接管5的纵向设置，第二限位槽55位于第一限位槽54的一侧，且与第一限位槽54相连通。A proximal end of the connecting tube 5 is provided with a first limiting groove 54 and a second limiting groove 55 . In the preferred implementation shown in FIG. 3 a , the first limiting groove 54 is provided on the side wall near the upper support member 51 . The second limiting groove 55 is arranged at the proximal end of the joint of the upper support member 51 and the lower supporting member 52, the second limiting groove 55 is arranged along the longitudinal direction of the connecting pipe 5, and the second limiting groove 55 is located at the first limiting groove 54 One side, and communicate with the first limiting groove 54.
推刀杆6可移动地设置于连接管5内。具体地，推刀杆6设置于上连接件51与下连接件52之间。推刀杆6的近端61顶部凸设有一第一卡挚部63，推刀杆6的远端62连接切刀7的近端71。切刀7远端72还设有刀刃73。在所述推刀杆6推动切刀7往远端移动的过程中，刀刃73可以切断位于钉砧2和钉仓3之间的组织，与此同时，切刀7可以推动击发块移动，从而将推钉片依次推出钉仓3，进而将吻合钉推出钉仓3并订合于组织上。在本实施例中，切刀7的纵截面呈工字形，在所述推刀杆6推动切刀7往远端移动的过程中，工字形的切刀7可使钉砧2朝向钉仓3闭合。The push rod 6 is movably arranged in the connecting pipe 5 . Specifically, the push rod 6 is disposed between the upper connecting piece 51 and the lower connecting piece 52 . The top of the proximal end 61 of the pusher rod 6 is protruded with a first engaging portion 63 , and the distal end 62 of the pusher rod 6 is connected to the proximal end 71 of the cutter 7 . The distal end 72 of the cutter 7 is also provided with a blade 73 . In the process of pushing the cutting knife 7 to the distal end by the pusher rod 6, the blade 73 can cut off the tissue between the anvil 2 and the staple cartridge 3, and at the same time, the cutting knife 7 can push the firing block to move, thereby The staple pushing pieces are pushed out of the staple bin 3 sequentially, and then the staples are pushed out of the staple bin 3 and stapled to the tissue. In this embodiment, the longitudinal section of the cutting knife 7 is I-shaped. When the pusher bar 6 pushes the cutting knife 7 to move to the distal end, the I-shaped cutting knife 7 can make the anvil 2 face the staple cartridge 3 closure.
保险机构连接于连接管5的近端，保险机构包括压块81、推块82、扭簧83以及弹簧84。The safety mechanism is connected to the proximal end of the connecting tube 5 , and the safety mechanism includes a pressing block 81 , a pushing block 82 , a torsion spring 83 and a spring 84 .
压块81上设有第二卡挚部811，且压块81可以相对连接管5于第一位置与第二位置之间转动，当压块81位于第一位置时(图4中的压块81所在位置即为第一位置)，压块81上的第二卡挚部811与推刀杆6上的第一卡挚部63卡接，使推刀杆6无法移动，处于锁定状态，当压块81转动至第二位置时(图6中的压块81所在位置即为第二位置)，第二卡挚部811与第一卡挚部63脱离，推刀杆6可移动，处于解锁状态。本实施例中，压块81由第一位置向第二位置的转动相当于压块81由图4所示位置进行逆时针的转动。如图3a和图3b所示，压块81通过销轴9连接于第一限位槽54内，压块81的近端可绕销轴9相对连接管5转动。第二卡挚部811设置于压块81的远端。The pressing block 81 is provided with a second locking part 811, and the pressing block 81 can rotate between the first position and the second position relative to the connecting pipe 5. When the pressing block 81 is in the first position (the pressing block in FIG. 4 81 is the first position), the second clamping part 811 on the pressing block 81 is clamped with the first clamping part 63 on the pusher rod 6, so that the pusher rod 6 cannot move and is in a locked state. When the briquetting block 81 rotates to the second position (the position of the briquetting block 81 in FIG. 6 is the second position), the second locking part 811 is separated from the first locking part 63, and the pusher rod 6 is movable and is in an unlocked state. state. In this embodiment, the rotation of the pressure block 81 from the first position to the second position is equivalent to the counterclockwise rotation of the pressure block 81 from the position shown in FIG. 4 . As shown in FIG. 3 a and FIG. 3 b , the pressing block 81 is connected in the first limiting groove 54 through the pin shaft 9 , and the proximal end of the pressing block 81 can rotate around the pin shaft 9 relative to the connecting pipe 5 . The second locking portion 811 is disposed at the distal end of the pressing block 81 .
推块82设置于连接管5的外周上，位于压块81的一侧，且可相对连接管5沿其纵向于第三位置与第四位置之间移动，当推块82由第三位置移动至第四位置时，推动压块由第一位置转动至第二位置。如图3a和图3b所示，推块82设置于第二限位槽55内，且可沿第二限位槽55于第三位置与第四位置之间移动，图3b中的推块82所在位置即为第三位置，此时，压块81与推块82的远端相配合，且压块81上的第二卡挚部811与推刀杆6上的第一卡挚部63卡接；图5b中的推块82所在位置即为第四位置，此时，压块81与推块82的近端相配合，且压块81上的第二卡挚部811与推刀杆6上的第一卡挚部63脱离；第三位置位于第四位置的近端。The push block 82 is arranged on the outer circumference of the connecting pipe 5, on one side of the pressure block 81, and can move between the third position and the fourth position relative to the connecting pipe 5 along its longitudinal direction. When the push block 82 moves from the third position When reaching the fourth position, the pressing block is pushed to rotate from the first position to the second position. As shown in Figure 3a and Figure 3b, the push block 82 is arranged in the second limiting groove 55, and can move between the third position and the fourth position along the second limiting groove 55, the pushing block 82 in Figure 3b The position is the third position. At this moment, the far end of the pressing block 81 and the push block 82 is matched, and the second engaging portion 811 on the pressing block 81 is engaged with the first engaging portion 63 on the push bar 6. Connect; the position of the push block 82 in Fig. 5b is the fourth position, at this time, the pressing block 81 is matched with the proximal end of the push block 82, and the second clamping part 811 on the pressing block 81 is in contact with the pusher rod 6 The upper first locking part 63 is disengaged; the third position is located at the proximal end of the fourth position.
扭簧83通过销轴9连接压块81和连接管5，驱动压块81由第二位置向第一位置转动。在本实施例中，扭簧83的一端连接压块81，另一端连接上支撑件51的内壁。The torsion spring 83 connects the pressing block 81 and the connecting pipe 5 through the pin shaft 9, and drives the pressing block 81 to rotate from the second position to the first position. In this embodiment, one end of the torsion spring 83 is connected to the pressing block 81 , and the other end is connected to the inner wall of the upper supporting member 51 .
弹簧84连接推块82和连接管5，驱动推块82由第四位置向第三位置方向移动。如图3b所示，弹簧84的近端连接于推块82的远端，弹簧84的远端连接上支撑件51的侧壁。本领域技术人员理解，在一些实施例中，弹性部件是可以进行变化的，例如，弹性部件可以是一设置于推块82与上支撑件51侧壁之间的弹块。在此不予赘述。The spring 84 connects the push block 82 and the connecting pipe 5, and drives the push block 82 to move from the fourth position to the third position. As shown in FIG. 3 b , the proximal end of the spring 84 is connected to the distal end of the push block 82 , and the distal end of the spring 84 is connected to the side wall of the support member 51 . Those skilled in the art understand that in some embodiments, the elastic component can be changed, for example, the elastic component can be an elastic block disposed between the push block 82 and the side wall of the upper support member 51 . I won't go into details here.
进一步地，请参见图3b，当本发明的钉头组件解锁前，压块81位于第一位置，推块82位于第三位置。压块81的远端靠近推块82一侧的侧壁上设有第二引导部812，第二引导部812贴于推块82的外表面上，第二引导部812优选地为一凸设于压块81的远端的侧壁上的凸块。所述凸块由压块81的侧面延伸而出，穿过第一限位槽54和第二限位槽55的连通处，贴于推块82的外表面上。推块82上的外表面设有第一引导部821，当推块82由第三位置移动至第四位置时，第一引导部821用于推动第二引导部812，使压块81由第一位置旋转至第二位置，第一引导部821为一第一斜面，第一斜面自推块82的远端朝向近端上升式倾斜，如图3b所示，第一斜面位于凸块的近端侧。Further, referring to FIG. 3 b , before the nail head assembly of the present invention is unlocked, the pressing block 81 is at the first position, and the pushing block 82 is at the third position. The far end of the pressure block 81 is provided with a second guide portion 812 on the side wall close to the side of the push block 82, and the second guide portion 812 is attached to the outer surface of the push block 82. The second guide portion 812 is preferably a protrusion. The protrusion on the side wall of the far end of the pressure block 81. The protrusion extends from the side of the pressing block 81 , passes through the connection between the first limiting groove 54 and the second limiting groove 55 , and sticks on the outer surface of the pushing block 82 . The outer surface of the push block 82 is provided with a first guide portion 821. When the push block 82 moves from the third position to the fourth position, the first guide portion 821 is used to push the second guide portion 812, so that the pressure block 81 moves from the third position to the fourth position. When the first position is rotated to the second position, the first guiding part 821 is a first inclined surface, and the first inclined surface is inclined upwardly from the distal end of the push block 82 toward the proximal end. As shown in FIG. 3b, the first inclined surface is located near the projection block. end side.
更进一步地，请一并参见图5a、图5b和图6，其分别示出了钉头组件解锁状态下的立体图以及压块与推刀杆的连接关系示意图。图5a、图5b为了更清楚地显示保险机构的结构，省略了连接管5。如图3b所示，当将钉头组件安装至缝切装置的平台上的过程中，推块82受力向其远端推动，压块81的第二引导部812(凸块)沿推块82的第一引导部821(第一斜面)移动，由于第一斜面自远端朝向近端上升式倾斜，因此，凸块在推块82从第三位置移动至第四位置的过程中被抬起，相应地，位于压块81远端的第二卡挚部811也被抬起，压块81绕销轴9从第一位置旋转至第二位置(即从图4所示位置旋转至图6所示位置)。如图6所示，此时，压块81的第二卡挚部811与推刀杆6的第一卡挚部63脱离，推刀杆6处于解锁状态，其可在击发组件的作用下向远端移动。当缝切装置击发完毕，将钉头组件自缝切装置的平台上拆下时，推块82失去外力作用，则推块82在弹簧84的作用下移回第三位置，与此同时，压块81自推块82的近端移动至其远端，且压块81在扭簧83的作用下，旋转回第一位置。Furthermore, please refer to Fig. 5a, Fig. 5b and Fig. 6, which respectively show a perspective view of the nail head assembly in an unlocked state and a schematic diagram of the connection relationship between the pressure block and the pusher rod. In order to show the structure of the insurance mechanism more clearly in Fig. 5a and Fig. 5b, the connecting pipe 5 is omitted. As shown in Figure 3b, when the nail head assembly is installed on the platform of the stapling device, the push block 82 is pushed toward its far end by force, and the second guide portion 812 (bulk) of the pressure block 81 moves along the push block. The first guide portion 821 (first slope) of 82 moves, and since the first slope is inclined upwardly from the distal end toward the proximal end, the projection is lifted when the push block 82 moves from the third position to the fourth position. Correspondingly, the second locking part 811 located at the far end of the pressing block 81 is also lifted, and the pressing block 81 rotates around the pin shaft 9 from the first position to the second position (that is, from the position shown in FIG. 4 to the position shown in FIG. 4 ). position shown in 6). As shown in Figure 6, at this moment, the second clamping part 811 of the pressing block 81 is disengaged from the first clamping part 63 of the pusher rod 6, and the pusher rod 6 is in an unlocked state, which can be fired under the action of the firing assembly. remote movement. When the seam cutting device percussion is completed, when the nail head assembly is pulled down from the platform of the seam cutting device, the pushing block 82 loses the external force effect, and then the pushing block 82 moves back to the third position under the effect of the spring 84, and at the same time, the pressing The block 81 moves from the proximal end of the pushing block 82 to its distal end, and the pressing block 81 rotates back to the first position under the action of the torsion spring 83 .
在本发明的优选实施例中，推刀杆6的近端61还可以设有第三引导部64，当推刀杆6向近端移动时，第三引导部64可以引导压块81由第一位置旋转至第二位置。优选地，第三引导部64为一第二斜面(如图4或图6所示)。所述第二斜面朝向推刀杆6近端61，且自远端朝向近端下降式倾斜。当推刀杆6复位返回近端过程中，压块81的第二卡挚部811可以沿第二斜面移动，使压块由第一位置旋转至第二位置，当推刀杆6复位后，压块81在扭簧83的作用下再次旋转至第一位置，第二卡挚部811重新与推刀杆6的第一卡挚部63卡接，使推刀杆6重新恢复至锁定状态。第二斜面可以使推刀杆6的复位更方便。本领域技术人员理解，第三引导部64并不是必需的，推刀杆6的复位过程中，同样可以使用推动推块82的方式使压块81旋转至第四位置后，拉动推刀杆6复位。在此不予赘述。In a preferred embodiment of the present invention, the proximal end 61 of the pusher rod 6 can also be provided with a third guide portion 64, and when the pusher rod 6 moves to the proximal end, the third guide portion 64 can guide the pressure block 81 to move from the first Rotate from one position to second position. Preferably, the third guiding portion 64 is a second slope (as shown in FIG. 4 or FIG. 6 ). The second inclined plane faces toward the proximal end 61 of the pusher rod 6 , and slopes down from the distal end toward the proximal end. When the pusher rod 6 resets and returns to the proximal end, the second locking part 811 of the pressure block 81 can move along the second inclined plane, so that the pressure block rotates from the first position to the second position. After the pusher rod 6 is reset, The pressure block 81 rotates to the first position again under the action of the torsion spring 83 , and the second locking part 811 engages with the first locking part 63 of the push rod 6 again, so that the push rod 6 returns to the locked state. The second slope can make the reset of the pusher rod 6 more convenient. Those skilled in the art understand that the third guide part 64 is not necessary. During the reset process of the pusher bar 6, the pushing block 82 can also be used to rotate the pressure block 81 to the fourth position, and then the pusher bar 6 can be pulled. reset. I won't go into details here.
本实施例的防窜动和防误击发结构只有通过向推块8施加外力驱动推块8纵向移动，使压块81旋转抬起，才能释放推刀杆6使其处于解锁状态；而在无外力施加给推块8的情况下，压块81远端的第二卡挚部与推刀杆6的第一卡挚部保持卡接，使推刀杆6处于锁定状态，从而阻止推刀杆6蹿动和误击发。The anti-movement and anti-misfire structure of this embodiment can only release the push knife rod 6 and make it in the unlocked state by applying an external force to the push block 8 to drive the push block 8 to move longitudinally, so that the pressing block 81 is rotated and lifted, and the push knife rod 6 can be released to make it in the unlocked state; When an external force is applied to the push block 8, the second clamping portion at the far end of the pressure block 81 is engaged with the first clamping portion of the pusher rod 6, so that the pusher rod 6 is in a locked state, thereby preventing the pusher rod from 6 Jumping and misfiring.
本发明还提供一种腔镜外科手术缝切装置。该缝切装置包括本体以及钉头组件。其中，钉头组件为图1至图6中所示的钉头组件。钉头组件的连接管5以及推刀杆6与本体相连接。该本体可以推动推刀杆6，使切刀7向钉仓架1的远端方向移动。The invention also provides a laparoscopic surgery suturing device. The slit cutting device includes a body and a nail head assembly. Wherein, the nail head assembly is the nail head assembly shown in Fig. 1 to Fig. 6 . The connecting pipe 5 and the pusher rod 6 of the nail head assembly are connected with the body. The body can push the knife push rod 6 to move the cutter 7 toward the distal end of the staple cartridge rack 1 .
综合上述图1至图6所示的实施例，本领域技术人员理解，本发明所提供的钉头组件以及腔镜外科手术缝切装置，可以有效地防止钉仓组件安装至腔镜吻合器的器械平台之前的组装、包装和运输等环节中推刀杆蹿动，确保手术前器械平台能够与推刀杆正确安装，并能防误击发。Based on the above-mentioned embodiments shown in Figures 1 to 6, those skilled in the art understand that the nail head assembly and the endoscopic surgical sewing device provided by the present invention can effectively prevent the nail cartridge assembly from being installed on the endoscopic stapler. During the assembly, packaging, and transportation of the instrument platform, the pusher bar moves to ensure that the instrument platform can be correctly installed with the pusher bar before the operation, and to prevent misfiring.
以上对本发明的具体实施例进行了描述。需要理解的是，本发明并不局限于上述特定实施方式，本领域技术人员可以在权利要求的范围内做出各种变形或修改，这并不影响本发明的实质内容。Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention.
| Application Number | Priority Date | Filing Date | Title |
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| CN201410842178.0ACN105796143B (en) | 2014-12-30 | 2014-12-30 | A kind of nail-head component and hysteroscope surgical operation seaming and cutting device |
| JP2017600081UJP3214069U (en) | 2014-12-30 | 2015-12-30 | Stapling head assembly and endoscopic surgical suture cutting device |
| ES15875262TES2971142T3 (en) | 2014-12-30 | 2015-12-30 | Stapling head and suturing and cutting apparatus set for endoscopic surgery |
| PCT/CN2015/099941WO2016107586A1 (en) | 2014-12-30 | 2015-12-30 | Nail head assembly and suturing and cutting apparatus for endoscopic surgery |
| US15/541,044US10806453B2 (en) | 2014-12-30 | 2015-12-30 | Stapling head assembly and suturing and cutting apparatus for endoscopic surgery |
| EP15875262.6AEP3241505B1 (en) | 2014-12-30 | 2015-12-30 | Stapling head assembly and suturing and cutting apparatus for endoscopic surgery |
| BR112017014210-4ABR112017014210B1 (en) | 2014-12-30 | 2015-12-30 | Endoscopic surgery stapling head and suturing and cutting apparatus set |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410842178.0ACN105796143B (en) | 2014-12-30 | 2014-12-30 | A kind of nail-head component and hysteroscope surgical operation seaming and cutting device |
| Publication Number | Publication Date |
|---|---|
| CN105796143A CN105796143A (en) | 2016-07-27 |
| CN105796143Btrue CN105796143B (en) | 2018-10-30 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410842178.0AActiveCN105796143B (en) | 2014-12-30 | 2014-12-30 | A kind of nail-head component and hysteroscope surgical operation seaming and cutting device |
| Country | Link |
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| CN (1) | CN105796143B (en) |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address | Address after:215021 No. 278 Dongping Street, Suzhou Industrial Park, Jiangsu Province Patentee after:Tianchen International Medical Technology Co., Ltd Address before:215021, 1355 international science and Technology Park, Jinji Lake Avenue, Suzhou Industrial Park, Jiangsu, 3 21A Patentee before:TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE Co.,Ltd. |