CN102138815B - Suture device for surgical operation - Google Patents

Abstract

The invention discloses a suture device for a surgical operation. The device comprises an upper clamp and a lower clamp, wherein the upper clamp and the lower clamp can be closed or opened mutually; a slide block is arranged in the concave inside of the near end of the lower clamp; a far end of the slide block is connected with a nail pushing mechanism and a knife pushing mechanism; a safety mechanism is arranged between the lower clamp and the slide block, and is a U-shaped clip fixed relative to the axial direction of the lower clamp; the U-shaped clip comprises a cross rod and two pins connected to two sides of the cross rod; and when the upper clamp and the lower clamp are not closed, the two pins of the U-shaped clip are clamped into the slide block, so that the slide block cannot move along the axes of the lower clamp. The suture device for a surgical operation has the advantages of simple structure, effectiveness in operation and well popularization value.

Description

Translated fromChinese

外科手术用缝切器械Surgical cutting instruments

技术领域technical field

本发明涉及一种外科手术用缝切器械，属于医疗器械技术领域。The invention relates to a sewing and cutting instrument for surgical operations, which belongs to the technical field of medical instruments.

背景技术Background technique

外科手术用缝切器械被广泛用于外科手术中伤口缝合、内部组织缝合与切割，典型的外科手术用缝切器械如美国专利US5129570所揭示，具有缝合与切割两个功能，在进行伤口缝合的同时，将多余的组织切除。该类外科手术用缝切器械一般包括上、下两个钳夹，以及用于闭合上、下钳夹的闭合把手，相对设置在上下钳夹前端的钉砧和钉仓，设于钉仓内并可同时相对所述钉仓移动的推钉杆、推钉片和切刀，以及用于驱动所述推钉片和切刀移动的推钮。所述钉仓内排列设置有缝合钉，所述推钉片将缝合钉推向钉砧，所述切刀将位于钉仓和钉砧之间的组织切断。Surgical suturing instruments are widely used in wound suturing, internal tissue suturing and cutting in surgical operations. Typical surgical suturing instruments, as disclosed in U.S. Patent No. 5,129,570, have two functions of suturing and cutting. At the same time, excess tissue is removed. Such surgical instruments generally include upper and lower jaws, and closing handles for closing the upper and lower jaws. And the nail pushing rod, the nail pushing piece and the cutting knife that can move relative to the staple cartridge at the same time, and the push button for driving the moving of the nail pushing piece and the cutting knife. Staples are arranged in the staple cartridge, the staple pusher pushes the staples to the anvil, and the cutter cuts off the tissue between the staple cartridge and the anvil.

为了防止在上下钳夹还未闭合时推动推钮产生的误操作，现有技术的外科手术用缝切器械都会设置一种保险机构。In order to prevent misoperation caused by pushing the push button when the upper and lower jaws are not closed, a safety mechanism is provided in the prior art surgical sewing and cutting instruments.

美国专利US5129570号揭示了一种保险机构，在器械的中部设置一个带有切刀通道与推钉杆通道的保险块，在切刀下面设置弹片。当器械处于打开位置(即上、下两个钳夹未闭合)时，弹片将切刀弹起，使切刀无法通过切刀通道，起到保险作用；当器械的上、下两个钳夹闭合后，钉仓压迫切刀顶部，使切刀克服弹片的弹力并恢复到与切刀通道对准的状态，这时保险解除，器械可以击发使用。U.S. Patent No. US5129570 discloses a safety mechanism. A safety block with a cutter channel and a pusher rod channel is arranged in the middle of the instrument, and a shrapnel is arranged under the cutter. When the instrument is in the open position (that is, the upper and lower jaws are not closed), the shrapnel bounces the cutter so that the cutter cannot pass through the cutter channel, which plays a role of insurance; when the upper and lower jaws of the instrument After closing, the staple cartridge presses the top of the cutter, so that the cutter overcomes the elastic force of the shrapnel and returns to the state aligned with the cutter channel. At this time, the safety is released and the instrument can be used for firing.

美国专利US7055730号揭示了另一种保险机构，在器械的中部设置一个带有推刀杆通道与推钉杆通道的保险块，该保险块在扭簧作用下可绕器械转动。当器械处于打开位置(即上、下两个钳夹未闭合)时，保险块发生扭转，使推钉杆与推刀杆都无法通过通道，起到保险作用；当器械的上、下两个钳夹闭合后，钉仓压迫保险块使其克服扭簧的弹力而恢复正常位置(即推钉杆与推刀杆分别与其保险块上的通道对准)，使推钉杆与推刀杆都可通过保险块，这时保险解除，器械可以击发使用。U.S. Patent No. US7055730 discloses another safety mechanism. A safety block with a channel for a knife pusher and a channel for a nail pusher is arranged in the middle of the instrument, and the safety block can rotate around the instrument under the action of a torsion spring. When the instrument is in the open position (that is, the upper and lower jaws are not closed), the safety block is twisted so that neither the nail pusher nor the knife pusher can pass through the channel, which plays a role of insurance; when the upper and lower jaws of the instrument are not closed After the jaws are closed, the staple magazine presses the safety block to overcome the elastic force of the torsion spring and return to the normal position (that is, the nail push rod and the push knife rod are respectively aligned with the channels on the safety block), so that the nail push rod and the push knife rod are both aligned. Can pass through the safety block, at this time the safety is released, and the instrument can be fired and used.

发明内容Contents of the invention

本发明的目的是提出一种具有新型保险机构的外科手术用缝切器械。The purpose of the present invention is to propose a surgical sewing instrument with a novel safety mechanism.

本发明的目的，将通过以下技术方案得以实现：The purpose of the present invention will be achieved through the following technical solutions:

一种外科手术用缝切器械，包括：可相互闭合或打开的上、下钳夹，所述下钳夹近端的凹形内部设有滑动块，所述滑动块的远端连接推钉机构及推刀机构，所述下钳夹与滑动块之间设有保险机构，所述保险机构为相对于所述下钳夹轴向固定的U形弹片，所述U形弹片包括横杆及连接于所述横杆两侧的双脚，在上、下钳夹未闭合时所述U形弹片的双脚卡入至所述滑动块内，用于限制所述滑动块沿下钳夹的轴线运动。A sewing and cutting instrument for surgical operations, comprising: upper and lower jaws that can be closed or opened mutually, a sliding block is provided in the concave interior of the proximal end of the lower jaw, and the distal end of the sliding block is connected with a nail pushing mechanism and a push knife mechanism, a safety mechanism is provided between the lower jaw and the sliding block, the safety mechanism is a U-shaped shrapnel fixed axially relative to the lower jaw, and the U-shaped shrapnel includes a cross bar and a connection The feet on both sides of the cross bar, when the upper and lower jaws are not closed, the feet of the U-shaped shrapnel snap into the sliding block, and are used to limit the sliding block along the axis of the lower jaw. sports.

进一步地，所述U形弹片卡设在所述下钳夹的近端。Further, the U-shaped elastic piece is clamped at the proximal end of the lower jaw.

进一步地，所述下钳夹上设有两个对称的卡槽，滑动块与对卡槽对应位置处设有两个凹槽，所述U形弹片的双脚跨过所述卡槽嵌于所述滑动块的凹槽内。Further, the lower jaw is provided with two symmetrical slots, and two grooves are provided at the corresponding positions of the sliding block and the matching slots, and the feet of the U-shaped elastic pieces are embedded in the slots across the slots. In the groove of the slider.

进一步地，所述卡槽呈倒L形。Further, the card slot is in an inverted L shape.

更进一步地，所述保险机构的触发机构为上钳夹近端，所述上钳夹近端压迫所述U形弹片的横杆使其弯曲变形，进而使所述U形弹片的双脚从所述滑动块凹槽内脱离。Furthermore, the trigger mechanism of the safety mechanism is the proximal end of the upper jaw, and the proximal end of the upper jaw presses the cross bar of the U-shaped elastic piece to make it bend and deform, so that the feet of the U-shaped elastic piece can move from The sliding block is disengaged from the groove.

本发明的有益效果主要体现在：结构简单，操作有效，具有很好的推广价值。The beneficial effects of the invention are mainly reflected in: simple structure, effective operation and good popularization value.

附图说明Description of drawings

图1是下钳夹的结构示意图，此时上、下钳夹未闭合。Fig. 1 is a schematic diagram of the structure of the lower jaw, at this time the upper and lower jaws are not closed.

图2是图1中沿A-A的剖视图。Fig. 2 is a sectional view along A-A in Fig. 1 .

图3是上、下钳夹的结构示意图，此时上、下钳夹已闭合。Fig. 3 is a structural schematic diagram of the upper and lower jaws, at this time the upper and lower jaws are closed.

图4是图3中沿B-B的剖视图。Fig. 4 is a sectional view along B-B in Fig. 3 .

其中：in:

1下钳夹   2上钳夹  3卡槽1lower jaw 2upper jaw 3 card slot

4U形弹片  5双脚    6横杆4 U-shapedshrapnel 5feet 6 Crossbar

7滑动块7 sliders

具体实施方式Detailed ways

如图1-2所示，本发明提供了一种外科手术用缝切器械的保险机构。与现有技术一致，所述外科手术用缝切器械包括塑料外壳，可相互闭合或打开的上、下钳夹，上钳夹2的远端设有钉砧(未视出)，下钳夹1的远端设有钉仓(未视出)。当然，上下钳夹的位置可以互换，本发明为了表达清楚才如此定义。下钳夹1的近端的凹形内部设有滑动块7，所述滑动块7远端设有推钉杆和推刀杆，分别用于击发缝合钉和切割组织。使用时，将组织放在钉砧与钉仓之间，然后对合上、下钳夹，闭合把手，使上、下钳夹夹紧组织，然后推动击发推钮，即可实施组织的缝合和切割。As shown in Figures 1-2, the present invention provides a safety mechanism for a surgical sewing instrument. Consistent with the prior art, the surgical slit-cutting instrument comprises a plastic shell, upper and lower jaws that can be closed or opened mutually, the far end of theupper jaws 2 is provided with an anvil (not shown), and thelower jaws 1 is provided with a staple cartridge (not shown) at the far end. Of course, the positions of the upper and lower jaws can be interchanged, and the present invention is so defined for the sake of clarity. The concave interior of the proximal end of thelower jaw 1 is provided with asliding block 7, and the distal end of the slidingblock 7 is provided with a pusher rod and a pusher rod, which are respectively used for firing staples and cutting tissues. When in use, put the tissue between the anvil and the staple bin, then close the upper and lower jaws, close the handle, make the upper and lower jaws clamp the tissue, and then push the firing push button to implement the suturing and sealing of the tissue. cutting.

本发明的一个重要的特点在于：所述下钳夹1与滑动块7之间设有保险机构，所述保险机构具有保险状态和释放状态，当所述保险机构处于保险状态时，所述保险机构连接于下钳夹1与滑动块7之间并限制所述滑动块7沿下钳夹1的轴线运动，即保险机构处于保险状态；当所述保险机构处于释放状态时，所述下钳夹1与滑动块7脱离，此时滑动块可以沿下钳夹1的轴线运动。An important feature of the present invention is that a safety mechanism is provided between thelower jaw 1 and the slidingblock 7, and the safety mechanism has a safety state and a release state. When the safety mechanism is in the safety state, the safety mechanism The mechanism is connected between thelower jaw 1 and thesliding block 7 and limits the movement of the slidingblock 7 along the axis of thelower jaw 1, that is, the safety mechanism is in the insurance state; when the safety mechanism is in the released state, the lower jaw Theclamp 1 is disengaged from thesliding block 7, and the sliding block can move along the axis of thelower jaw 1 at this moment.

进一步地，所述保险机构为相对于所述下钳夹1轴向固定的U形弹片4，所述U形弹片4包括横杆6及连接于所述横杆6两侧的双脚5，在上下钳夹未闭合时所述U形弹片4的双脚5卡入至所述滑动块7内，用于限制所述滑动块7沿下钳夹1的轴线运动。Further, the safety mechanism is a U-shapedelastic piece 4 axially fixed relative to thelower jaw 1, and the U-shapedelastic piece 4 includes across bar 6 and twofeet 5 connected to both sides of thecross bar 6, When the upper and lower jaws are not closed, thefeet 5 of the U-shapedelastic piece 4 snap into thesliding block 7 to limit the movement of the slidingblock 7 along the axis of thelower jaw 1 .

本优选实施例中，所述下钳夹1上设有两个对称的卡槽3，所述U形弹片4架设于所述下钳夹近端，并不能脱离下钳夹，为了更好地置入并固定U形弹片4，所述卡槽3设置成倒L形，其一端为下钳夹1的缺口。所述滑动块7与下钳夹1上L形卡槽对应的位置还设有两个凹槽，使U形弹片4的双脚5设于所述凹槽内，则可阻止滑动块7向前移动，即保险机构处于保险状态。In this preferred embodiment, thelower jaw 1 is provided with twosymmetrical slots 3, and theU-shaped shrapnel 4 is mounted on the proximal end of the lower jaw and cannot be separated from the lower jaw. The U-shapedelastic piece 4 is inserted and fixed, and theclamping groove 3 is set in an inverted L shape, and one end thereof is a notch of thelower jaw 1 . The corresponding position of thesliding block 7 and the L-shaped slot on thelower jaw 1 is also provided with two grooves, so that thefeet 5 of theU-shaped shrapnel 4 are arranged in the grooves, and thesliding block 7 can be prevented from moving to the other side. Move forward, that is, the insurance agency is in the insurance state.

结合图3、图4所示，所述保险机构的触发机构为上钳夹2的近端，当上、下两个钳夹1、2闭合后，所述上钳夹2的近端压迫所述U形弹片4的横杆6使其弯曲变形，进而带动所述U形弹片4的双脚5从所述滑动块7的凹槽内脱离，即U形弹片解除对滑动块的限制，保险解除，这时滑动块7便可沿下钳夹的轴线移动。As shown in Figure 3 and Figure 4, the trigger mechanism of the safety mechanism is the proximal end of theupper jaw 2, when the upper andlower jaws 1, 2 are closed, the proximal end of theupper jaw 2 presses the Thecrossbar 6 of theU-shaped shrapnel 4 makes it bend and deform, and then drives thefeet 5 of theU-shaped shrapnel 4 to break away from the groove of thesliding block 7, that is, the U-shaped shrapnel releases the restriction on the sliding block, ensuring Release, at thismoment slide block 7 just can move along the axis of lower jaw.

手术时，将组织放在上下钳夹的工作区域，即钉仓、钉砧间。然后闭合器械，此时上钳夹2的近端卡入下钳夹1近端内，压迫所述U形弹片4的横杆6，使所述U形弹片4变形进而使其双脚5从所述滑动块7内脱开，此时保险解除，滑动块7可以在击发推钮的带动下向前移动，进而推动推钉杆及推刀杆向前移动，继而将钉被推出于钉仓并钉入组织，切刀在2个平行的缝线中将组织切开，一直到钉仓内的钉都被击发出来，最后将滑动块7拉回器械近端的初始位置。最后，按压释放按钮，打开器械，手术完成。During the operation, the tissue is placed in the working area of the upper and lower jaws, that is, between the nail bin and the nail anvil. Then the instrument is closed, at this time, the proximal end of theupper jaw 2 is inserted into the proximal end of thelower jaw 1, and thecross bar 6 of the U-shapedelastic piece 4 is pressed to deform the U-shapedelastic piece 4 so as to make bothfeet 5 from The slidingblock 7 is disengaged, and the safety is released at this time, the slidingblock 7 can move forward under the drive of the firing push button, and then push the nail pusher rod and the pusher knife rod to move forward, and then push the nail out of the nail bin And stapled into the tissue, the cutter cuts the tissue in 2 parallel sutures until the nails in the staple bin are shot out, and finally thesliding block 7 is pulled back to the initial position of the proximal end of the instrument. Finally, press the release button, turn on the instrument, and the operation is completed.

本发明尚有多种实施方式，凡采用等同变换或者等效变换而形成的所有技术方案，均落在本发明的保护范围之内。There are still many implementations in the present invention, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the present invention.

Claims (5)

Translated fromChinese

1.一种外科手术用缝切器械，包括：可相互闭合或打开的上、下钳夹，所述下钳夹近端的凹形内部设有滑动块，所述滑动块的远端连接推钉机构及推刀机构，其特征在于：所述下钳夹与滑动块之间设有保险机构，所述保险机构为相对于所述下钳夹轴向固定的U形弹片，所述U形弹片包括横杆及连接于所述横杆两侧的双脚，在上、下钳夹打开时所述U形弹片的双脚卡入至所述滑动块内，用于限制所述滑动块沿下钳夹的轴线运动。1. A slit-cutting instrument for surgical operations, comprising: upper and lower jaws that can be closed or opened mutually, the concave interior of the lower jaw near-end is provided with a sliding block, and the far-end of the sliding block is connected to push The nail mechanism and the knife pushing mechanism are characterized in that: a safety mechanism is provided between the lower jaw and the sliding block, and the safety mechanism is a U-shaped shrapnel fixed axially relative to the lower jaw, and the U-shaped The elastic piece includes a cross bar and two feet connected to both sides of the cross bar. When the upper and lower jaws are opened, the two feet of the U-shaped elastic piece are snapped into the sliding block to limit the sliding block along the Axis movement of the lower jaw.2.根据权利要求1所述的外科手术用缝切器械，其特征在于：所述U形弹片卡在所述下钳夹的近端。2 . The surgical slit cutting instrument according to claim 1 , wherein the U-shaped shrapnel is stuck on the proximal end of the lower jaw. 3 .3.根据权利要求2所述的外科手术用缝切器械，其特征在于：所述下钳夹上设有两个对称的卡槽，滑动块上设有两个凹槽，所述两个凹槽与所述两个对称的卡槽位置相对应，所述U形弹片的双脚跨过所述卡槽并嵌于所述滑动块的凹槽内。3. The surgical slit-cutting instrument according to claim 2, characterized in that: the lower jaw is provided with two symmetrical slots, the sliding block is provided with two grooves, and the two grooves The slots correspond to the positions of the two symmetrical slots, and the feet of the U-shaped spring straddle the slots and are embedded in the slots of the sliding block.4.根据权利要求3所述的外科手术用缝切器械，其特征在于：所述卡槽呈倒L形。4. The surgical sewing and cutting instrument according to claim 3, characterized in that: the draw slot is in an inverted L shape.5.根据权利要求1至4所述的任意一种外科手术用缝切器械，其特征在于：所述保险机构的触发机构为上钳夹近端，所述上钳夹近端压迫所述U形弹片的横杆使其弯曲变形，进而带动所述U形弹片的双脚从所述滑动块凹槽内脱离。5. The surgical sewing and cutting instrument according to any one of claims 1 to 4, characterized in that: the trigger mechanism of the safety mechanism is the proximal end of the upper jaw, and the proximal end of the upper jaw presses the U The cross bar of the U-shaped shrapnel makes it bend and deform, and then drives the feet of the U-shaped shrapnel to disengage from the groove of the sliding block.

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