CN103860224A - Linear suturing and excising device - Google Patents

Abstract

The invention discloses a linear suturing and excising device, comprising a body, a staple cartridge rack, a knife pushing rod and an excising knife, wherein a staple cartridge is arranged on the staple cartridge rack, a cocking block is arranged in the staple cartridge, the knife pushing rod pushes the cocking block to move, the staple cartridge rack is provided with a boss playing a safety effect, the far end of the excising knife is provided with an elastic sheet which is fixedly connected with a stop dog, and the cocking block drives one side of the elastic sheet to move for enabling the stop dog to generate displacement vertical to the moving direction of the cocking block. The linear suturing and excising device has the beneficial effects that doctors are effectively prevented from performing the next operation under the condition that a cocked staple cartridge is not replaced, so that occurrence of medical negligence is avoided, and the structure is simple and effective.

Description

Straight line stitching instrument cutter sweep

Technical field

The present invention relates to a kind of surgery instrument, especially a kind of straight line stitching instrument cutter sweep with secondary fuse mechanism, belongs to technical field of medical instruments.

Background technology

Surgical operation is widely used in wound suture, interior tissue stitching and cutting with straight line stitching instrument cutter sweep.Surgical operation is developed so far, and has more and more tended to Minimally Invasive Surgery.Broad sense, the operation that can reduce wound is all called Minimally Invasive Surgery; Narrow sense, Minimally Invasive Surgery refers to the operation of carrying out at Microendoscopic.General of the operation that Microendoscopic carries out need to be opened several apertures on patient's health, and excision, suture tissue and auxiliary apparatus are stretched in patient body and performed the operation from aperture.The wound that Minimally Invasive Surgery brings to patient is little, and patient can recover in a short period of time, and therefore Minimally Invasive Surgery is more and more subject to people's attention.

U.S. Pat 7753246 has disclosed a kind of straight line stitching instrument cutter sweep for Minimally Invasive Surgery, comprise an instrument body, described instrument body comprises that housing and a pivot be located at the percussion handle on housing, in this housing, be provided with a relatively-movable percussion push rod, described percussion push rod can promote to be positioned at the nail-head component of housing front end and sew up and excise.Concrete, described nail-head component comprises a nail bin frame, and one and the pivotally connected nail anvil of nail bin frame.On described nail bin frame, be removably provided with nail bin, nail bin be provided with in one group, be provided with pushing slice of nail, anastomosis staple put nail hole, what be generally 4 rows or 6 rows puts nail hole.Described nail anvil is being provided with nail forming tank with described putting on relative position, nail hole.Described nail-head component also comprise in an adapter that is arranged on movably nail-head component, with the push broach bar that percussion push rod connects, the far-end of described push broach bar is fixed an I shape cutting knife, this I shape cutting knife in the process of advancing by nail bin and nail anvil closure.The distal center of described cutting knife is provided with blade, and it cuts off the tissue being positioned between nail bin and nail anvil in the process of advancing.The blade both sides of described I shape cutting knife are provided with percussion piece, and in the process of advancing at I shape cutting knife, I shape cutter driving percussion piece is pushed out of pushing slice of nail outside nail bin successively, and then pushing slice of nail is pushed out of anastomosis staple outside nail bin and orders and close organizationally.In prior art, doctor completes after above-mentioned seaming and cutting action, first needs apparatus to reset, and then changes nail bin, so that straight line stitching instrument cutter sweep carries out seaming and cutting operation next time.

But due to some careless doctors or the doctor that lacks experience, can in the case of do not change the nail bin of having pulled the trigger, carry out on seaming and cutting operation once, can cause like this generation of malpractice, carried out excision and but do not sewed up.In order to prevent the generation of this type of accident, prior art has proposed the theory of the anti-secondary percussion of secondary fuse,, in the case of not changing the nail bin of having pulled the trigger, pulls the trigger handle and can not be pressed.Like this, fundamentally prevent the malpractice producing due to doctor's maloperation.

U.S. Pat 5485947 discloses Liao Liangzhong secondary fuse mechanism.In the first mechanism, nail bin is provided with a chute, is provided with slidably a flexure strip in this chute.When original state, it is outer and by upwards jack-up of push broach bar that this flexure strip stretches out in described chute, and the projection being now positioned on breach and the nail bin of push broach bar near-end is separated from each other, and guarantees that described push broach bar can be pushed.In the time that push broach bar moves to far-end, described push broach bar is pushed into flexure strip in described chute, and the height of this push broach bar declines.After described push broach bar is resetted, described projection is just stuck in the breach of push broach bar, and this push broach bar cannot be moved again, has played the effect of secondary fuse.The principle of the second mechanism and the first mechanism are similar, and a pivot member is replaced to flexure strip.When original state, pivot member is lifted push broach bar, makes the breach on push broach bar avoid the projection on nail bin.After described push broach bar is resetted, pivot member upset, declines the height of push broach bar, and described projection is just stuck in the breach of push broach bar, and described push broach bar cannot be moved again, has played the effect of secondary fuse.

In prior art, because the parts that relate to are very little, and be all assemblied in nail bin, cause straight line stitching instrument cutter sweep to be produced and assembling difficulty.

Summary of the invention

Object of the present invention: the straight line stitching instrument cutter sweep that proposes a kind of anti-secondary firing lock of secondary fuse with simple structure.

Object of the present invention, will be achieved by the following technical programs:

A kind of straight line stitching instrument cutter sweep, comprising: a body; One is arranged at the nail bin frame of described body distal end; On described nail bin frame, be removably provided with nail bin, described nail bin be provided with in several, be provided with pushing slice of nail, anastomosis staple put nail hole, be arranged in the chute of described nail bin for promoting the percussion piece of described pushing slice of nail; One nail anvil pivotally connected with described nail bin frame; One for connecting the adapter of described body and nail bin frame, is provided with movably a push broach bar and is placed in the cutting knife of described push broach bar far-end in described adapter, and described push broach bar promotes described percussion piece and moves; Described nail bin frame is provided with the boss of safety effect together, the far-end of described cutting knife is provided with a shell fragment, the first side of described shell fragment is fixedly connected on described cutting knife, the Second Edge of described shell fragment is free state, on described Second Edge, be fixedly connected with a block, described percussion piece drives the Second Edge of described shell fragment to move, and makes described block produce the displacement perpendicular to described percussion piece moving direction.

Preferably, described block is arranged between first side and Second Edge.

Preferably, the first side of described shell fragment and the fillet of Second Edge comprise an inclined-plane.

Preferably, described shell fragment welds or is pasted on the far-end of described cutting knife.

Beneficial effect of the present invention is mainly reflected in: effectively prevent doctor in the case of do not change the nail bin of having pulled the trigger, carry out on operation once, avoid the generation of malpractice, simple in structure effectively.

Accompanying drawing explanation

Fig. 1 is the schematic perspective view that is located at the nail bin frame in adapter of the preferred embodiment of the present invention.

Fig. 2 is the enlarged drawing of A part in Fig. 1.

Fig. 3 is the front view of the nail-head component of the preferred embodiment of the present invention, and nail bin is not now installed, first insurance.

Fig. 4 is the enlarged drawing of B part in Fig. 3.

Fig. 5 is the front view of the nail-head component of the preferred embodiment of the present invention, and nail bin is now installed.

Fig. 6 is the front view of the nail-head component of the preferred embodiment of the present invention, now promotes push broach bar.

Fig. 7 is the front view of the nail-head component of the preferred embodiment of the present invention, now continues to promote push broach bar, arming.

Fig. 8 is the front view of the nail-head component of the preferred embodiment of the present invention, now pull the trigger complete, secondary fuse.

Wherein: 1, nail bin frame; 11, boss; 2, nail anvil; 3, nail bin; 4, take over; 5, percussion piece; 6, push broach bar; 7, cutting knife; 8, shell fragment; 81, first side; 82, Second Edge; 83, inclined-plane; 9, block.

The specific embodiment

The present invention has disclosed a kind of straight line stitching instrument cutter sweep for Minimally Invasive Surgery, as shown in Figures 1 to 4, consistent with prior art, comprising: a housing, is positioned at theadapter 4 of housing far-end.The far-end of describedadapter 4 is nail-head component, comprising: anail bin frame 1 and one and the pivotally connectednail anvil 2 of described nail bin frame 1.On describednail bin frame 1, be removably provided withnail bin 3, describednail bin 3 be provided with in one group, be provided with pushing slice of nail, anastomosis staple put nail hole; Be arranged in the chute of describednail bin 3 for thepercussion piece 5 that promotes described pushing slice of nail.

In describedadapter 4, be provided with movably apush broach bar 6; The far-end of describedpush broach bar 6 is fixed acutting knife 7, on describedcutting knife 7, has projection, is I shape, described I shapecutting knife 7 in the process of advancing first compressing tissue make to expand organize attenuation and evenly, thereby further bynail bin 3 andnail anvil 2 closures; The distal center of described I shapecutting knife 7 is provided with blade, describedpush broach bar 6 promotescutting knife 7 this blade in the process of advancing the tissue being positioned betweennail bin 3 andnail anvil 2 is cut off, and describedpush broach bar 6 promotes describedpercussion piece 5 pushing slice of nail is pushed out ofoutside nail bin 3 successively in the process of advancing, and then pushing slice of nail is pushed out of anastomosis staple outsidenail bin 3 and orders and close organizationally.

Feature of the present invention is: describednail bin frame 1 is provided with theboss 11 of safety effect together, and the far-end of describedcutting knife 7 is provided with ashell fragment 8, and thefirst side 81 of describedshell fragment 8 is fixedly connected on describedcutting knife 7, can weld or paste.TheSecond Edge 82 of describedshell fragment 8 is free state, is fixedly connected with ablock 9 on described SecondEdge 82, and describedpercussion piece 5 drives theSecond Edge 82 of describedshell fragment 8 to move, and makes describedblock 9 produce the displacement perpendicular to describedpercussion piece 5 moving directions.Describedblock 9 is arranged betweenfirst side 81 and Second Edge 82.Thefirst side 81 of describedshell fragment 8 and the fillet ofSecond Edge 82 comprise an inclined-plane 83.

Simply introduce some work process of the present invention below.

As shown in Figure 3 and Figure 4, in the time that the nail-head component of the preferred embodiment of the present invention is not installednail bin 3, describedblock 9 is interfered mutually withboss 11, and described boss is arranged in the advance route ofblock 9, describedblock 9 can not be moved to far-end along straight line, and thenpush broach bar 6 can not be moved.Like this, the preferred embodiment of the present invention is in a safety position.

When loading onto afternail bin 3, as shown in Figure 5, becausenail bin 3 does not all contact withblock 9 orshell fragment 8 withpercussion piece 5, so the preferred embodiment of the present invention is also in safety position at present.

In the time that the preferred embodiment of the present invention is pulled the trigger, as shown in Figure 6, the inclined-plane 83 of describedshell fragment 8 will touchpercussion piece 5, and thrust now is still not enough to promotepercussion piece 5, so inclined-plane 83 can be out of shape.At this moment, theSecond Edge 82 of describedshell fragment 8 can move along upward direction in figure, makes describedblock 9 produce the displacement perpendicular to describedpercussion piece 5 moving directions.

In the time that the preferred embodiment of the present invention is further pulled the trigger, whenpush broach bar 6 is moved further, as shown in Figure 7, there is gross distortion in the inclined-plane 83 of describedshell fragment 8, makes describedblock 9 produce maximum displacement along upward direction in figure.At this moment, describedblock 9 is mutually non-interference with describedboss 11, andboss 11 has not been on the mobile alignment ofblock 9, arming.At this moment can pull the trigger this stitching cutter sweep.

As shown in Figure 8, after preferred embodiment of the present invention percussion, describedpercussion piece 5 can be positioned at the far-end of describednail bin 3 and can not reset.After describedpush broach bar 6 resets, due to the elastic reaction ofshell fragment 8, can drive describedblock 9 along downward direction displacement in figure, at this moment describedblock 9 andboss 11 are interfered, and have played the effect of secondary fuse.Only have the nail bin more renewing could remove this secondary fuse, reach the object of anti-secondary percussion.

In the present invention, the word of described expression position and direction, is all using exercises on apparatus author as reference, is near-end near one end of operator, is far-end away from one end of operator.

The present invention still has numerous embodiments, and all employing equivalents or equivalent transformation and all technical schemes of forming, within all dropping on protection scope of the present invention.

Claims (4)

Translated fromChinese

1.一种直线缝合切割装置，包括：1. A linear suture cutting device, comprising:一本体；a body;一设置于所述本体远端的钉仓架(1)；所述钉仓架(1)上可拆卸地设有钉仓(3)，所述钉仓(3)上设有若干个内设有推钉片、吻合钉的置钉孔，用于推动所述推钉片的击发块(5)设置于所述钉仓(3)的滑槽内；A staple cartridge frame (1) arranged at the far end of the body; the staple cartridge frame (1) is detachably provided with a staple cartridge (3), and the staple cartridge (3) is provided with several internal devices There are nail-setting holes for the nail pusher and staples, and the firing block (5) for pushing the nail pusher is set in the chute of the staple bin (3);一与所述钉仓架(1)枢轴连接的钉砧(2)；a staple anvil (2) pivotally connected to the staple cartridge frame (1);一用于连接所述本体和钉仓架的接管(4)，所述接管(4)内可移动地设置有一推刀杆(6)及置于所述推刀杆(6)远端的切刀(7)，所述推刀杆(6)推动所述击发块(5)移动；A connecting pipe (4) for connecting the body and the staple cartridge rack, a pusher rod (6) and a cutting rod placed at the far end of the pusher rod (6) are movably arranged in the connecting pipe (4). Knife (7), the pusher bar (6) pushes the percussion block (5) to move;其特征在于：所述钉仓架(1)上设有一起保险作用的凸台(11)，所述切刀(7)的远端设有一弹片(8)，所述弹片(8)的第一边(81)固定连接于所述切刀(7)上，所述弹片(8)的第二边(82)呈自由状态，所述第二边(82)上固定连接有一挡块(9)，所述击发块(5)驱动所述弹片(8)的第二边(82)移动，使所述挡块(9)产生垂直于所述击发块(5)移动方向的位移。It is characterized in that: the staple magazine frame (1) is provided with a boss (11) for insurance function, the distal end of the cutter (7) is provided with a shrapnel (8), and the first shrapnel (8) of the shrapnel (8) One side (81) is fixedly connected to the cutter (7), the second side (82) of the elastic piece (8) is in a free state, and a stopper (9) is fixedly connected to the second side (82). ), the firing block (5) drives the second side (82) of the shrapnel (8) to move, causing the stopper (9) to produce a displacement perpendicular to the moving direction of the firing block (5).2.根据权利要求1所述的直线缝合切割装置，其特征在于：所述挡块(9)设置在第一边(81)和第二边(82)之间。2. The linear suturing and cutting device according to claim 1, characterized in that: the stopper (9) is arranged between the first side (81) and the second side (82).3.根据权利要求1所述的直线缝合切割装置，其特征在于：所述弹片(8)的第一边(81)和第二边(82)的连接边包括一斜面(83)。3. The linear suturing and cutting device according to claim 1, characterized in that: the connecting side of the first side (81) and the second side (82) of the elastic piece (8) includes a slope (83).4.根据权利要求1所述的直线缝合切割装置，其特征在于：所述弹片(8)焊接或粘贴于所述切刀(7)的远端。4. The linear suture cutting device according to claim 1, characterized in that: the elastic piece (8) is welded or pasted on the distal end of the cutting knife (7).

Images