CN106108968B - tissue closing device and medical instrument - Google Patents

Abstract

The present invention provides a kind of tissue closing devices comprising can the first holder, the second holder with respect to opened/closed, form accommodating chamber after first holder and second holder closure；First holder and second holder include clip shell, the grip block being fixed in the clip shell, between the clip shell and the grip block and from proximate extend channel；Have on the grip block be arranged from proximate interval and be connected to several openings in the channel and the accommodating chamber, in each opening and can in the opening along the direction perpendicular to the grip block close to or far from the clip shell convex block, the convex block, which is equipped with from proximate, runs through the convex block and the needle tray that is connected to the accommodating chamber；Convex block on first holder and second holder is shifted to install from proximate, and tissue closing device further includes pushing block and elastic backing mechanism.The tissue closing device is capable of forming the boundling pocket of center gathering.

Description

Tissue closing device and medical instrument

Technical field

The present invention relates to the field of medical instrument technology more particularly to a kind of tissue closing device and there is tissue closure dress The medical instrument set.

Background technique

In existing gastral anastomosis operation, generally first using linear type or arc line type stapler to human body tubulose group The detachment for knitting progress multi-angle is coincide, and is reused circular-pipe anastomat and dock to the tissue after detachment and coincide.

However, after being coincide using linear type or arc line type stapler to human body tubular tissue progress detachment, due to kiss It is linear for healing up, especially when doing low rectal position, due to being limited by human body basin bottom operating space and its The limitation of linear type instrument pivot angle, it may appear that intersect nail phenomenon, in this way, " cat can be had by reusing when circular-pipe anastomat coincide Ear " not only has the risk of fistula, but also higher cost of performing the operation.

Summary of the invention

The purpose of the present invention is to provide a kind of tissue closing device and with the medical instrument of the tissue closing device.

For achieving the above object, the present invention provides a kind of tissue closing devices, it is characterised in that：The tissue closes Attach together set including：

Can the first holder, the second holder with respect to opened/closed, shape after first holder and second holder closure At accommodating chamber；First holder and second holder include clip shell, the grip block being fixed in the clip shell, are located at institute It states between clip shell and the grip block and from the channel that proximate extends；Have on the grip block between proximate Every be arranged and be connected to the channel and the accommodating chamber several openings, be located at each opening in and can be in the opening Interior edge perpendicular to the grip block direction close to or far from the convex block of the clip shell, the convex block is equipped with from proximate Through the convex block and the needle tray that is connected to the accommodating chamber；On grip block on first holder and second holder Convex block is shifted to install from proximate；

It can drivingly be moved in each channel from proximate gradually to drive on the grip block Several convex blocks towards the pushing block mobile away from the direction of the clip shell, the pushing block to distal end it is mobile after, be located at the pushing block The convex block of proximal end is detached from the pushing block；

Elastic backing mechanism is ordinatedly distinguished along the both ends perpendicular to the grip block direction, the elasticity backing mechanism It is set to the convex block, on the grip block；The pushing block drives the elastic backing mechanism towards the direction for deviating from the clip shell When mobile, elastic deformation occurs for the elasticity backing mechanism, and when the convex block is detached from the pushing block, the elasticity backing mechanism is made It is located at the convex block in the channel for the convex block；

Can be by pocket component drivingly mobile from proximate, including nail pushing device, it is movably connected on the ejector pin The interconnecting piece of the proximal end of a pair of syringe needle of a pair of of syringe needle, connection on device；When the nail pushing device is mobile from proximate, one To syringe needle respectively first holder, second holder grip block on convex block needle tray in move and be pierced into tubulose group It knits, while tubular tissue is gradually closed into one by the distal end closure that tubular tissue pushes distally collapse to a pair of syringe needle to Pocket.

As a further improvement of the present invention, the convex block includes opposite and spaced first wall and the second wall, connects The connection wall of first wall and second wall is connect, first wall, the second wall and the connection wall, which are enclosed, to be set to be formed towards back The needle tray that side from the connection wall opens, first wall, which is equipped with away from the side of the clip shell from proximate, to be extended Wire casing, it is described elasticity backing mechanism be elastica, the proximal end of the grip block, the other end are fixed in one end of the elastica In extending in the channel from proximate and be fixed on the grip block after sequentially passing through the wire casing of each convex block Distally.

As a further improvement of the present invention, the convex block includes opposite and spaced first wall and the second wall, connects The connection wall of first wall and second wall is connect, first wall, the second wall and the connection wall, which are enclosed, to be set to be formed towards back The needle tray that side from the connection wall opens, first wall, which is equipped with away from the side of the clip shell from proximate, to be extended Wire casing, the elasticity backing mechanism includes several elastic lines with each convex block cooperation respectively, each bullet The both ends of property line are individually fixed on the grip block of the proximal end positioned at the convex block, distal end, the middle part of the elastic line Quartile is in the wire casing.

As a further improvement of the present invention, one in the opening and the convex block is equipped at least one orientation Column, another is equipped with the guide slot to match with the orientation column；The orientation column is matched with the guide slot to guide The convex block is close or mobile away from the clip shell.

As a further improvement of the present invention, the convex block includes opposite and spaced first wall and the second wall, connects The connection wall of first wall and second wall is connect, first wall, the second wall and the connection wall, which are enclosed, to be set to be formed towards back The needle tray that side from the connection wall opens, first wall deviate from institute away from the outside wall surface of the needle tray and second wall It states and is equipped at least one guide slot in the outside wall surface of needle tray, the opening has the orientation column matched with the guide slot； The orientation column is matched with the guide slot to guide the convex block close or away from clip shell movement.

As a further improvement of the present invention, the convex block includes opposite and spaced first wall and the second wall, connects The connection wall of first wall and second wall is connect, first wall, the second wall and the connection wall, which are enclosed, to be set to be formed towards back The needle tray that side from the connection wall opens, the connection wall are equipped at least one side convex from the connection wall The limit film stretched, the edge that the limit film rides over the opening when the convex block is mobile away from the clip shell, which plays, limits it The effect continued to move to.

As a further improvement of the present invention, each convex block has inclining positioned at proximal end towards the side of the clip shell Inclined-plane, the plane positioned at the inclined surface distal end；The pushing block have positioned at distal end and with the inclined surface cooperation inclined plane part, Planar portions positioned at the inclined plane part proximal end.

As a further improvement of the present invention, width of the planar portions on proximate direction is greater than the convex block Width on proximate direction.

As a further improvement of the present invention, a pair of syringe needle and the interconnecting piece form U-shaped thimble, first folder The distal end of the grip block of seat is equipped with the first binding block protruded out towards second holder, and first binding block is equipped with and this The corresponding first nail forming tank of the needle tray of convex block on grip block；The distal end of the grip block of second holder is equipped with towards the The second binding block that one holder protrudes out, second binding block are equipped with corresponding with the needle tray of convex block on the grip block the Two nail forming tanks.

As a further improvement of the present invention, the interconnecting piece is purse wire, first holder and/or second folder The distal end of seat has the closed connector with a pair of syringe needle cooperation, has in the closed connector for accommodating a pair of of institute State the accepting hole of needle distal end.

As a further improvement of the present invention, have in the clip shell of first holder spaced along its width direction Two grip blocks, the clip shell of second holder is interior to be had along spaced two grip blocks of its width direction； The tissue closing device further includes can be by certainly close in the channel drivingly between each grip block and the clip shell It holds mobile to drive the convex block on grip block towards the pushing block mobile away from the direction of the clip shell to distal end.

As a further improvement of the present invention, have in the clip shell of first holder spaced along its width direction Two grip blocks, the clip shell of second holder is interior to be had along spaced two grip blocks of its width direction； The tissue closing device further include can by drivingly each clip shell be located at the clip shell in two described in It is mobile to drive the convex block court on two grip blocks to deviate from simultaneously from proximate in channel between grip block The mobile pushing block in the direction of the clip shell.

For achieving the above object, the present invention also provides a kind of medical instrument, including it is instrument body, detachably connected In the instrument body distal end tissue closing device, be connected in the instrument body to fire the tissue closing device Percussion lock.

The beneficial effects of the invention are as follows：Tissue closing device of the invention can be mobile toward and away from clip shell by being equipped with Convex block, so that several convex blocks on first holder, second holder are partly hidden in institute respectively when not firing State the first holder, in the channel on second holder；In percussion, the several convex blocks adjacent from proximate are driven by pushing block It is dynamicly mobile to squeeze the human body tubular tissue waviness in accommodating chamber away from clip shell, enable thimble discontinuity to penetrate human body Tubular tissue, the pocket of formation can penetrate the mucous layer of human body tubular tissue, form the boundling pocket that center is collapsed；And form lotus The convex block of Bao Hou, proximal end are hidden in the channel again under the action of elastic backing mechanism, are convenient for subsequent operation.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of tissue closing device of the invention.

The first holder and the structural schematic diagram after second holder cooperation that Fig. 2 is tissue closing device shown in FIG. 1.

Fig. 3 is schematic diagram of the tissue closing device shown in FIG. 1 in the first holder and the second holder opening state.

Fig. 4 is schematic diagram of the tissue closing device shown in Fig. 3 in cock.

Fig. 5 is the perspective view in the direction A-A of tissue closing device shown in Fig. 3.

Fig. 6 is the perspective view in the direction B-B of tissue closing device shown in Fig. 4.

Fig. 7 is tissue closing device shown in Fig. 2 in the structural schematic diagram of another angle.

Fig. 8 is the cross-sectional view in the direction C-C of the first holder shown in Fig. 7.

Fig. 9 is the structural schematic diagram that cutter mechanism, pocket component and pushing block shown in FIG. 1 cooperate.

Figure 10 is the exploded view of cutter mechanism shown in Fig. 9, pocket component.

Figure 11 is cutter mechanism shown in Fig. 9, pocket component in the exploded view of another angle.

Figure 12 is the structural schematic diagram after tissue closing device shown in FIG. 1 and the cooperation of transfer connector.

Specific embodiment

Below with reference to specific embodiment shown in the drawings, the present invention will be described in detail.But these embodiments are simultaneously The present invention is not limited, structure that those skilled in the art are made according to these embodiments, method or functionally Transformation is included within the scope of protection of the present invention.

Clearly to express described position and direction in the present invention, using equipment operator as reference, proximal operator is depended on One end be proximal end, far from operator one end be distal end.

It as shown in figure 12, is medical instrument of the invention, including instrument body（It is not shown）, be removably attachable to it is described The tissue closing device 100 of instrument body distal end is connected in the instrument body to fire the tissue closing device 100 Percussion lock（It is not shown）, wherein the tissue closing device 100 further includes the transfer connector to connect with instrument body 300.It will be appreciated by persons skilled in the art that the specific structure of the instrument body, the percussion lock is unlimited, as long as energy It is enough ordinatedly to fire the tissue closing device 100；Such as linear type or arc can be continued to use but be not limited to the instrument body The instrument body mechanism of linear stapler.

As shown in Fig. 1 ~ Figure 12, it is the tissue closing device 100 of better embodiment of the present invention, is mainly used for human body tubulose The anastomosis of cutting tissue lesion portion, such as alimentary tract anastomosis operation.

Typically human body tubular tissue includes but is not limited to：Blood vessel, including artery and vein；Alimentary canal, including esophagus, Stomach, small intestine, colon, rectum；Bile duct and pancreas；The urinary tract, including ureter, bladder and urethra；And fallopian tubal etc..It can manage Solution, the tissue closing device 100 can be used in coincide same human body tubular tissue or human body tubular tissue not of the same race. For example, when lesion occurs for the middle section of colon, the two parts of the tissue closing device 100 for the connection colon that coincide, and The tubular track re-created is in colon itself；And lesion portion is sigmoid colon, it is directly to rectum, described Tissue closing device 100 is for connection colon and the rectum of coincideing, and the tubular track re-created is between rectum and colon.

The tissue closing device 100 include can the first holder 11, the second holder 12 with respect to opened/closed, when described When first holder 11 and second holder 12 are closed, formed between first holder 11 and second holder 12 to press from both sides Hold the accommodating chamber 13 of human body tubular tissue.

First holder 11 and second holder 12 opposite can be opened, and enter the appearance for part human body tubular tissue It receives in chamber 13；First holder 11 and second holder 12 are closed later, the part human body tubular tissue is i.e. by first Holder 11 and the second holder 12 are held in the accommodating chamber 13, to facilitate subsequent operation.It will be appreciated by those skilled in the art that , so-called subsequent operation includes but is not limited to：The part human body tubular tissue is set to form the boundling pocket that center is collapsed；It cuts Cut human body tubular tissue etc..

In the present embodiment, the proximal end of first holder 11 and the proximal end of second holder 12 are pivotally connected, and described The distal end of first holder 11, the second holder 12 distal end in the split type openable or closure accommodating chamber 13；First folder When the distal end of seat 11, the distal end of second holder 12 separate, first holder 11 and second holder 12 are in approximate V-type Opening.

Specifically, first holder 11 and second holder 12 include the clip shell 14 of channel-shaped, are fixed on the folder At least one grip block 15 in shell 14, by the clip shell 14 and at least one described 15 shape of grip block for being located in the clip shell 14 At from proximate extend channel 16.As described in Figure 8, it is all had in first holder 11 and second holder 12 Two grip blocks 15；And in other embodiments, first holder 11 and second holder 12 can also include one The grip block 15.

15 split settings of the clip shell 14 and the grip block are set on one in the clip shell 14 and the grip block 15 Have that several fixed columns, another is equipped with and the one-to-one fixing groove of the fixed column.The clip shell 14 and the grip block After 15 are fixed together, the clip shell 14 encloses the channel 16 for setting and being formed and being extended from proximate direction with the grip block 15. Alternatively, as shown in Figure 3 and Figure 4, the clip shell 14 is equipped with pin hole 141, the clip shell 14 and the grip block 15 by pin come It is fixed.Certainly, the clip shell 14 can also be arranged with the grip block 15 in integral type.

The proximal end of the clip shell 14 of first holder 11 is equipped with pivot 143, and the clip shell 14 of second holder 12 is close to close The pivot hole 144 matched with the pivot 143 is equipped at the position at end；The pivot 143 be inserted into the pivot hole 144 and When first holder 11 and second holder 12 are closed, first holder 11 is equal with the distal end of second holder 12 Together, the proximal end of the clip shell 14 of second holder 12 beyond first holder 11 clip shell 14 proximal end, with facilitate and its He assembles apparatus structure.

Have on the grip block 15 and is arranged and is connected to the channel 16 and the accommodating chamber 13 from proximate interval Several openings 17, positioned at it is each it is described opening 17 in and can it is described opening 17 in close to or far from the convex of the clip shell 14 Block 18.It will be appreciated by persons skilled in the art that spaced several openings 17 can be spaced several independences Opening 17；It is in a big opening that spaced several openings 17 can also be connected to from proximate.

It is described opening 17 and the convex block 18 in one be equipped at least one orient column 171, another be equipped with The guide slot 181 that the orientation column 171 matches.The orientation column 171 matches described convex to guide with the guide slot 181 Block 18 is close or mobile away from the clip shell 14, it is understood that when for the convex block 18 close to or away from the clip shell 14, institute It states orientation column 171 and moves Sloped rotating when preventing the convex block 18 mobile in the guide slot 181.In the present embodiment, institute State two guide slots 181 for being provided with and being oppositely arranged on convex block 18, set on 17 inner walls of the opening there are two orient column 171.

Several convex blocks 18 on the same grip block 15 are inline, and each convex block 18 is equipped with from close Hold the needle tray 182 for running through the convex block 18 to distal end and being connected to the accommodating chamber 13, the grip block 15 of first holder 11 Distal end be equipped with the first binding block 151 for protruding out towards second holder 12, first binding block 151 is equipped with and the folder The needle tray 182 corresponding first for holding the convex block 18 on plate 15 follows closely forming tank（It is not shown）；The grip block of second holder 12 15 distal end is equipped with the second binding block 152 protruded out towards the first holder 11, and second binding block 152 is equipped with and the clamping The needle tray 182 corresponding second of convex block 18 on plate 15 follows closely forming tank.

It will be appreciated by persons skilled in the art that the first nail forming tank is located at the described convex of first holder 11 The needle tray 182 of block 18 is from proximate at the projection of first binding block 151；The second nail forming tank is located at described The needle tray 182 of the convex block 18 of second holder 12 is from proximate at the projection of second binding block 152.

In addition, human body tubular tissue is opened from V-type when first binding block 151 and second binding block 152 separate Mouth can enter in the accommodating chamber 13；By instrument or manually first holder 11 and second holder 12 are closed in opposite directions It closes, until first binding block 151, second binding block 152 are closed the accommodating chamber 13, and first binding block 151, the second binding block 152 is supported in opposite directions, is played the role of both limitations and is continued closure, while preventing human body tubular tissue outside It overflows.

As shown in Fig. 1 ~ 12, in the present embodiment, when first holder 11 is closed with second holder 12, described the Grip block 15 in one holder 11 is parallel with the grip block 15 in second holder 12, and first holder 11 and described Convex block 18 on two holders 12 is shifted to install from proximate.It is closed in first holder 11 with second holder 12 When, several convex blocks 18 when not firing, due to the active force of tissue, on first holder 11, second holder 12 It is partly hidden in first holder 11, second holder 12 and the grip block 15 respectively and is formed by the channel 16 It is interior.Wherein, so-called to refer in parallel substantially parallel, the parallel of proper two planes is not refered in particular to, such as can be The anti-jaw that distal jaw is greater than proximal end jaw is formed from the direction of proximate, to reduce percussion force.

Specifically, the convex block 18 includes opposite and spaced first wall 183 and the second wall 184, connection described the The connection wall 185 of one wall 183 and second wall 184, first wall 183, the second wall 184 and the connection wall 185 are enclosed and are set It is formed and faces away from the needle tray 182 that the side of the connection wall 185 opens.

The connection wall 185 has inclined surface 1851 away from the proximal end of the outside wall surface of the needle tray 182, to facilitate from described The proximal end of convex block 18 drives the convex block 18 mobile away from the clip shell 14.Further, the outside wall surface of the connection wall 185 is also Be located at the plane 1852 of 1851 distal end of inclined surface, be located at 1852 distal end of the plane and with the inclined surface 1851 it is right Whether the symmetrical inclined surface 1853 for claiming setting, so that the convex block 18 can proximally and distally exchange installation, and exchange installation It can realize and proximally drive the convex block 18 mobile away from the clip shell 14.Certainly, the inclined surface 1851, the plane 1852 and the symmetrical inclined surface 1853 be also possible to that a cambered surface is collectively formed, reach same effect.

The connection wall 185 is equipped at least one limit film 1854 protruded outward from the side of the connection wall 185, The edge that the limit film 1854 rides over the opening 17 when the convex block 18 is mobile away from the clip shell 14, which plays, limits it The effect continued to move to, so that the outside wall surface of the connection wall 185 is always positioned in the channel 16.It is described in the present embodiment Connection wall 185 has distal end limit film 1854a, the proximal end limit film 1854b extended respectively to both ends from distal end, proximal end, works as institute When stating convex block 18 away from the clip shell 14 movement, the distal end limit film 1854a, proximal end limit film 1854b ride over the opening 17 edge plays the role of restriction, and it is continued to move to.

In addition, the clip shell 14 is equipped with the limiting slot 145 to accommodate and limit the outside wall surface of the connection wall 185, When the convex block 18 is mobile towards the clip shell 14, the limiting slot 145, which is supported the connection wall 185 and played, limits its continuation Mobile effect, so that first wall 183 and the second wall 184 are always positioned at the appearance away from one end of the connection wall 185 It receives in chamber 13.When the convex block 18 is close to the clip shell 14, the distal end limit film 1854a, proximal end limit film 1854b are located at Outside the limiting slot 145.

First wall 183 is away from the outside wall surface of the needle tray 182 and second wall 184 away from the needle tray 182 It is equipped at least one guide slot 181 in outside wall surface, there is the orientation column matched with the guide slot 181 in the opening 17 171；When the convex block 18 is close to or away from the clip shell 14, the orientation column 171 moves in the guide slot 181, to protect It demonstrate,proves the convex block 18 to move along the direction perpendicular to the grip block 15, prevents the run-off the straight when moving of convex block 18.

Further, the tissue closing device 100 further include can be by drivingly in each channel 16 from close It holds mobile gradually to drive several convex blocks 18 on the grip block 15 to move towards the direction away from the clip shell 14 to distal end Dynamic pushing block 19；After the pushing block 19 is moved to distal end, the convex block 18 positioned at 19 proximal end of pushing block is detached from the pushing block 19, from And convex block 18 can be retracted into the channel 16, to facilitate the movement of other structures.

Specifically, the convex block 18 has the inclined surface 1851 positioned at proximal end, positioned at institute towards the side of the clip shell 14 State the plane 1852 of 1851 distal end of inclined surface；The pushing block 19 has the inclined-plane positioned at distal end and with the inclined surface 1851 cooperation Portion 191, the planar portions 192 positioned at 191 proximal end of inclined plane part；The pushing block 19 moves in the channel 16 from proximate When dynamic, the inclined plane part 191 acts on the inclined surface 1851 to drive the convex block 18 to be moved to institute away from the clip shell 14 It states plane 1852 to support with the planar portions 192, the limit film 1854 is overlapped on the edge of the opening 17 at this time.This implementation In example, the planar portions 192 are designed to along the length of proximate extending direction, positioned at the pushing block of first holder 11 When 19 planar portions 192 and 1852 phase of plane of one of convex block 18 are supported, positioned at the pushing block 19 of second holder 12 Planar portions 192 are also supported with 1852 phase of plane of one of convex block 18 simultaneously, and two convex blocks 18 are adjacent.

Further, the tissue closing device 100 further includes described to drive positioned at the distal end in each channel 16 The elastic slice 161 mobile towards the direction for deviating from the clip shell 14 of pushing block 19.Specifically, the elastic slice 161 is located at the grip block 15 On all convex blocks 18 distal end, after the pushing block 19 pushes all convex blocks 18 mobile far from the holder, institute Stating elastic slice 161 drives the pushing block 19 towards away from the movement of the direction of the clip shell 14, so as to concede channel 16, is convenient for other The operation of instrument.

Have in the clip shell 14 of first holder 11 along spaced two grip blocks 15 of its width direction, institute Stating has the institute along the embodiment of spaced two grip blocks 15 of its width direction in the clip shell 14 of the second holder 12 It states the first holder 11 and second holder 12 all has along the perforative conduit 111 in direction perpendicular to the grip block 15, and The conduit 111 extends from proximate；Two grip blocks 15 in first holder 11 are along its width direction point Set on 111 two sides of conduit, two grip blocks 15 in second holder 12 are divided into described along its width direction The two sides of conduit 111.

The tissue closing device 100 in the embodiment can be formed in the side of the tubular tissue with lesion simultaneously Two pockets；Therefore when cutting human body tubular tissue between two pockets, the end of the tubular tissue with lesion is also by lotus Wrapping is tight to close, and is not easy to disengage, external convenient for subsequent taking-up.And the grip block 15 is provided only in first holder 11 Embodiment in, the tissue closing device 100 needs to operate can also form twice in the side of the tubular tissue with lesion Two pockets.

By taking two grip blocks 15 in first holder 11 as an example, two grip blocks 15 in same holder 14 can picture Shown in Fig. 8 be symmetrical arranged can also be set side by side in an identical manner, if under both of these case on two grip blocks 15 Dry convex block 18 is arranged from proximate with position.Certainly, the convex block 18 on two grip blocks 15 can also be different step setting, Such as it shifts to install.

Compared to the embodiment for being provided only with a grip block 15 in first holder 11, the pushing block 19 equally tool There are the inclined plane part 191 for being located at distal end and cooperating with the inclined surface 1851, the planar portions 192 positioned at 191 proximal end of inclined plane part； Unlike, the width of the pushing block 19 increases, can be simultaneously when the pushing block 19 is mobile from proximate in the channel 16 The convex block 18 on two grip blocks 15 is acted on so that the corresponding convex block 18 is mobile away from the clip shell 14.

Certainly, the tissue closing device 100 also may include can be by drivingly in each grip block 15 and institute It states mobile to drive the convex block 18 on grip block 15 towards away from described from proximate in the channel 16 between clip shell 14 The mobile pushing block 19 in the direction of clip shell 14, in use, two pushing blocks 19 are simultaneously by drivingly mobile from proximate.It is described to push away The specific structure and its move mode of block 19 are same as the previously described embodiments, repeat no more in this.

Specifically, the planar portions 192 from the width on proximate direction, are being greater than the convex block 18 in proximal end From the width on distal direction, so that in percussion, it is ensured that while thering are at least two convex blocks 18 to be jacked up, and with phase To the convex block 18 jacked up wavy tissue folder be collectively formed close face, it is described under the action of pushing block 19 to guarantee The needle tray channel of perforation can be formed in the tissue that convex block 18 clamps；And when pushing block 19 continues distal movement, it is located at described The convex block 18 of 19 proximal end of pushing block does not hinder other mechanism distal movements due to losing the effect of the pushing block and return.

Specifically by taking two grip blocks 15 in the first holder 11 are symmetrical arranged as an example, when pushing block 19 is in the first holder 11 Channel 16 in it is mobile from proximate when, the inclined plane part 191 can act on two simultaneously and be located at described in two Convex block 18 on grip block 15, so that two convex blocks 18 are mobile away from the holder.

Further, the tissue closing device 100 further includes elastic backing mechanism 3.Along perpendicular to the grip block 15 The both ends in direction, the elasticity backing mechanism 3 are ordinatedly connected to the convex block 18, on the grip block 15；It is described to push away When block 19 drives the elastic backing mechanism 3 towards away from the movement of the direction of the clip shell 14, bullet occurs for the elasticity backing mechanism 3 Property deformation, when the convex block 18 is detached from the pushing block 19, the elasticity backing mechanism 3 acts on the convex block 18 and makes the convex block 18 are located in the channel 19." both ends of the elasticity backing mechanism 3 are ordinatedly connected to the convex block 18, the folder Hold on plate 15 " it refers to：When the convex block 18 is mobile facing away or facing towards the clip shell 14,3 both ends of the elasticity backing mechanism Distance change to which flexible deformation occurs for the elastic backing mechanism 3；And " connection " can be to be fixedly connected, it can also be with It is abutted for activity.

For example, one end of the elasticity backing mechanism 3 is connected to the side that the convex block 18 deviates from the clip shell 14, it is another End is connected on the grip block 15.When the elasticity backing mechanism 3 is in first state, the convex block 18 is returned in the elasticity It moves back and is hidden under the active force of mechanism 3 in the channel 16；The pushing block 19 drives the convex block 18 to move away from the clip shell 14 When dynamic, 18 compressed tissue of convex block acts on the elastic backing mechanism 3 simultaneously and is at the second state；The convex block 18 After being detached from the pushing block 19, the elasticity backing mechanism 3 is converted from the second state to first state while driving the convex block 18 The convex block 18 is moved to towards the clip shell 14 to be retracted into the channel 16.

Wherein " one end of the elasticity backing mechanism 3 is connected to the side that the convex block 18 deviates from the clip shell 14, another End be connected in the clip shell 14 " in " connection " can be to be fixedly connected, or activity abut；In addition, " the convex block 18 deviate from the side of the clip shell 14 " and it is not specific to the convex block 18 side opposite and substantially parallel with the clip shell 14, and It is to refer to the indirect side towards the clip shell 14 of the convex block 18, including it towards distal end or the two sides of proximal end, as long as energy Realize that the elastic backing mechanism 3 is converted between the first state and a second state.

In the present embodiment, first wall 183 is equipped with the line extended from proximate away from the side of the clip shell 14 Slot 186, the elasticity backing mechanism 3 is elastica, and the proximal end of the grip block 15 is fixed in one end of the elastica, another Hold in extend in the channel 16 from proximate and sequentially pass through be fixed on after the wire casing 186 of each convex block 18 it is described The distal end of grip block 15, the elastica is located at each 18 proximal end of convex block, the part of distal end is respectively positioned in the channel 16 And it fits on the grip block 15.

Original state when first holder 11 and second holder 12 are opened, the elastica are in the first shape State, the elastica at this time have lesser elastic deformation, and the convex block 18 is all hidden under the pressure of the elastica In the channel 16；During percussion, the pushing block 19 drives the convex block 18 mobile away from the clip shell 14 and protrudes into institute It states in accommodating chamber 13, the elastica is jacked up by the convex block 18 to be occurred biggish elastic deformation by bigger pressure and coat On the convex block 18, and the elastica of 18 proximal end of the convex block, distal end is tightly attached to the grip block 14 and is located at the channel 16 Interior side, waveform is presented in the tissue in accommodating chamber 13 at this time；When pushing block 19 moves distally to be detached from the convex block 18, this is convex Block 18 returns in channel 16 under the convergent force effect of elastica, concedes the space in accommodating chamber 13.

Certainly, the elastic backing mechanism 3 also may include several elastic with each cooperation of convex block 18 respectively The both ends of line, each elastic line are individually fixed on the grip block 15 of the proximal end positioned at the convex block 18, distal end, institute The middle section for stating elastic line is located in the wire casing 186, to reach said effect.

Further, the tissue closing device 100 further includes described to drive positioned at the distal end in each channel 16 Two elastic slices 161 mobile towards the direction for deviating from the clip shell 14 of pushing block 19.Specifically, each elastic slice 161 is located at one The distal end of all convex blocks 18 on the grip block 15, when the pushing block 19 pushes all convex blocks 18 far from the folder After seat is mobile, two elastic slices 161 drive the pushing block 19 mobile towards the direction for deviating from the clip shell 14 jointly, so as to Channel 16 is conceded, convenient for the operation of other instruments.

The tissue closing device 100 further includes the closure for being closed first holder 11 and second holder 12 Device 200, the closer 200 include the first close out sheet positioned at first holder 11 away from the side of second holder 12 21a, it is closed positioned at second holder 12 away from the second close out sheet 21b of the side of first holder 11, connection described first Close the connection sheet 22 of piece 21a and the second close out sheet 21b；First holder 11 and second holder 12 are equipped with for institute State the closure conduit 111 mobile from proximate of connection sheet 22.

Since first holder 11 is shorter than second holder 12, when the second close out sheet 21b is located at described second When the pivot hole 144 on holder 12 is close to the side of proximal end, the first close out sheet 21a is located at 11 court of the first holder Side proximally, first holder 11 and second holder 12 are openable at this time.Enter in part human body tubular tissue After in the accommodating chamber 13, push the closer 200 mobile from proximate by instrument or manually, first closure Piece 21a, the second close out sheet 21b are respectively acting on the first holder 11, the second holder 12 can be closed the accommodating chamber 13, will Part human body tubular tissue folder is closed in the accommodating chamber 13.

In the embodiment for all having a grip block 15 in first holder 11 and second holder 12, institute It states the first close out sheet 21a and the second close out sheet 21b to protrude out from the opposite both ends of the connection sheet 22 towards ipsilateral, the closure Device 200 is in " [" type, the closure conduit 111 are located at the tissue closing device 100 along the side of its width direction.

And two spaced grip blocks 15 are all had in first holder 11 and second holder 12 Embodiment in, the conduit 111 be closed conduit 111；The first close out sheet 21a and the second close out sheet 21b is certainly The opposite both ends of the connection sheet 22 protrude out or protrude out towards two sides towards ipsilateral, and the closer 200 is in " [" type or " work " word Type.With after the tissue closing device 100 assembly, the connection sheet 22 is located in the conduit 111 closer 200.

Further, the distal end of the connection sheet 22 has the first push rod 23a protruded out towards distal direction and described the Two push rod 23b.After the closer 200 is assembled with first holder 11 and second holder 12, first push rod 23a, the second push rod 23b protrude into the channel 16 in the channel 16 of first holder 11, second holder 12 respectively；From And when the closer 200 is mobile from proximate, the first push rod 23a, the second push rod 23b respectively drive institute It is mobile from proximate to state the pushing block 19 of the first holder 11, the pushing block 19 in second holder 12.

Further, in order to cutting human body tubular tissue, the connection while forming pocket or after formation pocket The distal end of piece 22 is designed to blade, and the connection sheet 22 is cutting edge, and the closer 200 is converted into cutter mechanism, The closure conduit 111 is tool slot.

Further, the tissue closing device 100 further includes the pocket component being movably connected in the connection sheet 22 24, pocket component 24 includes nail pushing device 242, a pair of of the syringe needle 2411/2412 being movably connected on the nail pushing device 242, connection The interconnecting piece 2413 of the proximal end of a pair of syringe needle 2411/2412；It is a pair of when the nail pushing device 242 is mobile from proximate Syringe needle 2411/2412 pushes the tubular tissue being located in the accommodating chamber 13 to distal end to a pair of syringe needle 2411/2412 Tubular tissue is closed into a pocket by distal end closure.

Initial position, the blade that there is the cutter mechanism blade to be located at a pair of 2411/2412 proximal end of syringe needle Firing position positioned at a pair of 2411/2412 distal end of syringe needle.When the cutter mechanism is located at initial position, the pocket group Part 24 and the cutter mechanism are in the proximal end of the accommodating chamber 13；When the cutter mechanism is located at firing position, the pocket Component 24 and the cutter mechanism are in the distal end of the accommodating chamber 13；The cutter mechanism is mobile from initial position to firing position During, the pocket component 24 and the cutter mechanism move distally to the pocket component 24 for tubular tissue simultaneously After being closed into pocket, the cutter mechanism continues mobile to cut off tissue to distal end relative to the pocket.

In the present embodiment, a pair of syringe needle 2411/2412 forms U-shaped thimble 241 with the interconnecting piece 2413.The top Needle 241 specifically include the first syringe needle 2411, with first syringe needle 2411, second syringe needle 2412 disposed in parallel, connect described The interconnecting piece 2413 of one syringe needle 2411 and second syringe needle 2412.It is so-called to be arranged in parallel, it is expressed as first syringe needle 2411 is substantially parallel with the extending direction of second syringe needle 2412, not flat between proper two straight lines of feature Row.

In the present embodiment, first syringe needle 2411 is with second syringe needle 2412 in the width side of first holder 11 To slightly misplacing, so that first syringe needle 2411 is formed from second syringe needle 2412 in different plane inner bendings, thus Stable pocket is formed, convenient for the use of subsequent circular-pipe anastomat.

The nail pushing device 242 includes the ejector pin bar 2421 extended along proximate, is located at 2421 distal end of ejector pin bar U-shaped thimble sleeve 2422, the thimble sleeve 2422 has to the hollow portion 2423 that opens of distal end, to accommodate the nail It is tied on the interconnecting piece 2413 of needle, first syringe needle 2411 and second syringe needle 2412 close to the part of the interconnecting piece 2413 Structure；The thimble 241 and the detachably assembling of thimble sleeve 2422.

It is first syringe needle 2411, described when the nail pushing device 242 pushes the thimble 241 mobile from proximate Second syringe needle 2412 is respectively in the needle tray 182 of the convex block 18 of first holder 11, the needle of the convex block 18 of second holder 12 It is moved in slot 182 and is pierced into human body tubular tissue, while gradually pushed human body tubular tissue to distal end and collapsing, until first needle First 2411 will away from the distal end closure that the distal end of the interconnecting piece 2413, second syringe needle 2412 deviate from the interconnecting piece 2413 The tubular tissue being placed in the accommodating chamber 13 is closed into the boundling pocket of center gathering.In the present embodiment, described The distal end of one syringe needle 2411, second syringe needle 2412 distal end respectively it is described first nail forming tank, it is described second nail molding Human body tubular tissue closure is in a pocket by bending in slot.

Further, the nail pushing device 242 is detachably connected with the connection sheet 22 by fixing piece 25.It is pushed away when described After nail device 242 is mutually fixed with connection sheet, the thimble sleeve 2422 is proximally located at being distally-oriented to distally for the connection sheet 22 Side；After the pocket component 24 is detached from the cutter mechanism, the nail pushing device 242 stops to distal end movement, described Cutter mechanism can continue to distal end movement, to cut tissue.The ejector pin bar 2421 has the pin hole 2424 positioned at proximal end, can fill Assigned in the pin hole 2424 pin 2425, be recessed inwardly the fixed part to be formed in the side of pin hole 2424 towards the distal end 2426, the pin hole 2424 is arranged with the fixed part 2426 interval.

In first holder 11 and second the holder 12 embodiment including a grip block 15, the tissue Closing device 100 includes the pocket component 24 positioned at 111 side of conduit.Correspondingly, the proximal end of the connection sheet 22 Towards the side of distal end and run through the connection sheet 22 with the fixinig plate 221 protruded out towards side, positioned at the fixinig plate 221 To accommodate the fixation hole 222 of the fixing piece 25；It is respectively equipped on the fixing piece 25, the fixinig plate 221 along proximal end to remote Extreme direction runs through first the 251, second perforation 2211 of perforation passed through for the ejector pin bar 2421.

For the ejector pin bar 2421 with after the connection sheet 22 assembly, the fixing piece 25 is fixed on the fixed part 2426, The pin 2425 is located in the pin hole 2424, the connection sheet 22 be located in the pin hole 2424 and the fixing piece 25 it Between.

Further, the ejector pin bar 2421 also has the raised line 2427 protruded out towards first holder 11, described convex Item 2427 extends from proximate, and the section of the ejector pin bar 2421 is in class convex.The diameter of the fixed part 2426 is small In the diameter of the ejector pin bar 2421, and the diameter of the fixed part 2426 is less than or equal to the diameter of the raised line 2427.Institute State that the first perforation 251 is identical as the section of the ejector pin bar 2421, including match with the ejector pin bar 2421 macropore 2511, The aperture 2512 to match with the raised line 2427；The ejector pin bar 2421 and the raised line 2427 can be in first perforation 251 with moved in second hole, but the shape of second perforation 2211 does not do specific requirement, and section can be circle.This Field technical staff is it is understood that the fixed part 2426 can be contained in the aperture 2512, and the fixing piece 25 It can be by drivingly in the fixation hole 222 towards the first close out sheet 21a or the second close out sheet 21b movement.

When the pocket component 24 is assembled with the connection sheet 22, the fixing piece 25 is first placed in the fixation hole 222 Interior, the proximal end of the ejector pin bar 2421 proximally sequentially passes through the first perforation 251, second perforation 2211 from distal end, by the pin In the 2425 insertion pin hole 2424 of nail；The fixing piece 25 is fixed on the fixed part 2426, and the fixinig plate 221 is located at institute It states between fixing piece 25 and the pin 2425.At this point, the fixed part 2426 is located in the aperture 2512, the fixing piece 25 support with 2427 phase of raised line, so that the fixing piece 25 can not be mobile to distal end relative to the ejector pin bar 2421.It is described When cutter mechanism is mobile to distal end, the fixinig plate 221 acts on the fixing piece 25, the fixing piece 25 pushes the raised line 2427 to drive the pocket component 24 mobile from proximate, to form pocket；The cutter mechanism is from distally to close When end is retracted, the fixinig plate 221 acts on the pin 2425, may make the pocket component 24 while retracting.

The fixing piece 25 also has bullet corresponding with the fixation hole 222 and at the second close out sheet 21b Property body 252, the elastomer 252 protrude out towards the second close out sheet 21b, are located in the fixation hole in the fixing piece 25 When, the elastomer 252 is held in the side in the fixation hole 222 close to second close out sheet.In addition, the fixing piece 25 also have groove 253 being oppositely arranged with the elastomer 252 and close to the first close out sheet 21a, the groove 253 Recess direction and the elastomer 252 protrude out that direction is consistent, facilitate the dress of the fixing piece 25 and the fixation hole 222 Match.

Specifically, the needle propeller 242 under the driving of the cutter mechanism from proximate, in the elastomer Under the action of 252, the side that the fixing piece 25 is located at proximal end and/or distal end is held in the step at 2426 both ends of fixed part Face, at this point, the pocket component 24 distal movement together with the cutter mechanism；Correspondingly, the folder of second holder 12 Hold the boss 154 for being equipped at the position of distal end on plate 15 and protruding out towards first holder 11.When the cutter mechanism pushes away It moves the pocket component 24 and is moved to distal end, when the fixing piece 25 reaches 154 position of boss, in the boss Under the action of 154, the effect of the elastomer 252 is overcome, the boss 154 supports the fixing piece 25, so that the fixation Part 25 is mobile towards 11 direction of the first holder in the fixation hole 222, and the fixed part 2426 is detached from the aperture 2512 enter in the macropore 2511；Namely the macropore 2511 raised line 2427 described simultaneously corresponding with the ejector pin bar 2421 It is corresponding with the aperture 2512, meanwhile, the elastic slice 161 drives the pushing block 19 towards away from the movement of the direction of the clip shell 14 And jacked up, i.e., the described pushing block 19 can be located at the first push rod 23b, the second push rod 23a and 22 institute of connection sheet In the space surrounded, so as to concede channel 16, so that the fixing piece 25 can be pushed away with the fixinig plate 221 along described Nail rod 2421 to distally continuing to move to so that the cutter mechanism continue it is mobile to distal end, at this point, the pocket component 24 disengages The fixing piece 25, i.e., the described pocket component 24 stops and the fixing piece 25 is able to continue to distal end movement.In addition, working as While stating fixing piece 25 and reach 154 position of boss, the elastic slice 161 drives the pushing block 19 towards away from the folder The direction of shell 14 is mobile and is jacked up, in this way can be too long to avoid head part of apparatus length and be not easily accessible the lower position in human body basin bottom It sets.

The setting position of the boss 154 is, when the fixing piece 25 is supported with the boss 154, the pocket group The thimble 241 of part 24 makes human body tubular tissue form closing under the action of first follows closely forming tank, the second nail forming tank just Pocket.

In first holder 11 and second the holder 12 embodiment including two grip blocks 15, the tissue Closing device 100 includes being divided into pocket component 24 described in two groups of 111 two sides of conduit, and each pocket component 24 is right Answer the grip block 15 in the grip block 15 and second holder 12 in first holder 11.

Unlike first holder 11 and second the holder 12 embodiment including a grip block 15, institute The proximal end for stating connection sheet 22 has the fixinig plate 221 protruded out towards two sides, positioned at the fixinig plate 221 towards the side of distal end and The fixation hole 222 of the fixing piece 25 is accommodated through the connection sheet 22；Divide on the fixing piece 25, the fixinig plate 221 Two first perforation 251, two second passed through for the ejector pin bar 2421 She You not be run through along proximate direction to wear Hole 2211；And two first perforation 251 are divided into the two sides of the connection sheet 22, two second perforation 2211 also divide Set on the two sides of the connection sheet 22.Each pocket component 24 is located at the fixing piece 25 and fixinig plate of 22 side of connection sheet 221 connections, connection type is same as the previously described embodiments, repeats no more in this.

In another embodiment (not shown), the interconnecting piece 2413 or purse wire, first holder 11 and/ Or the distal end of second holder 12 has the closed connector cooperated with a pair of syringe needle 2411/2412（It is not shown）, institute State the accepting hole having in closed connector for accommodating a pair of 2411/2412 distal end of syringe needle.The syringe needle 2411/2412 After being connected with the closed connector, the closed connector is in the axial direction of the pocket component 24 to the syringe needle 2411/ 2412 are limited, the subsequent boundling pocket that can be tensed the purse wire manually and form center gathering.Other structures and its make It is same as the previously described embodiments with mode, it is repeated no more in this.

100 use process of the tissue closing device of the invention is：By the tissue closing device 100 and the instrument Ontology, percussion lock assembly.Before not firing, the cutter mechanism is located at initial position namely the cutter mechanism positioned at described The proximally facing side of first holder 11, first holder 11 and second holder 12 are openable at this time.

The accommodating chamber 13 is opened in the separation of the distal end of first holder 11 and second holder 12, and the convex block is in institute It states and is hidden in the channel under the pressure of elastic backing mechanism 3, part human body tubular tissue is placed in the accommodating chamber 13, The cutter mechanism can be pushed from proximate movement, first close out sheet by instrument or manually using lesser power 21a, the second close out sheet 21b are respectively acting on the first holder 11, the second holder 12 can be closed the accommodating chamber 13, by this Part human body tubular tissue is held in the accommodating chamber 13.

Further drive the cutter mechanism mobile from proximate, the first push rod 23a, second push rod 23b pushes the pushing block 19 in the channel 16 of pushing block 19 in the channel 16 of first holder 11, second holder 12 respectively Mobile from proximate, the pushing block 19 gradually drives the convex block 18 mobile away from the clip shell 14 from proximate, The convex block 18 acts on the elastic string and is at the second state, while the convex block 18 acts on human body tubular tissue and makes It is in undaform.At the same time, first syringe needle 2411, second syringe needle 2412 are respectively in the convex of first holder 11 The needle tray 182 of block 18, second holder 12 convex block 18 needle tray 182 in move to be pierced into human body tubular tissue by phased manner And penetrate the mucous layer of human body tubular tissue；When the pushing block 19 continues mobile to distal end, formed before wavy described Convex block 18 return back to described add due to losing the support of the pushing block 19, and under the pressure of the elastic backing mechanism 3 again Hold plate 15 and first holder 11, second holder 12 be formed by channel 16, without hinder the cutter mechanism after Continuous distal movement, and nail pushing device 242 pushes tissue mobile to distal end, until human body tubular tissue is tightened, forms collection The pocket of beam.

The human body tubular tissue in accommodating chamber 13 to first syringe needle 2411, which is passed through, to thimble 241 deviates from the interconnecting piece 2413 one end, second syringe needle 2412 away from the interconnecting piece 2413 one end arrive separately at it is described first nail forming tank, Second nail forming tank；The elastic slice 161 pushes the pushing block 19 to push away towards away from the movement of the direction of the clip shell 14 to described first Bar 23a and the second push rod 23b step down, and the cutter mechanism continues to move distally to first syringe needle 2411, described Second syringe needle 2412 is bent in the first nail forming tank, the second nail forming tank respectively, and human body tubular tissue is closed In a pocket.

After the completion of pocket, the boss 154, which acts on the fixing piece 25, moves it towards 11 direction of the first holder Dynamic, so that the nail pushing device 242 and the connection sheet 22 are detached from, the cutter mechanism continues, the knife mobile to distal end Sword cuts off the tubular tissue between two pockets.

Finally, retracting the cutter mechanism, the connection sheet 22 acts on the pin 2425, so that the thimble 241 It is detached from thimble sleeve 2422, cutter mechanism described in the nail pushing device 242 is retracted into initial position.

In conclusion tissue closing device 100 of the invention pushes convex block 18 to carry on the back by pushing block 19, elastic backing mechanism 3 From, it is mobile towards clip shell 14, allow the human body tubular tissue waviness of clamping, 241 discontinuity of thimble enabled to penetrate human body pipe Shape tissue, the pocket of formation can penetrate the mucous layer of human body tubular tissue, and the pocket of formation is not easy to slip.In addition, the present invention is logical It crosses cutter mechanism and can integrate realization and be closed first holder 11 and second holder 12, push the pushing block 19 described Channel 16 is interior to be pricked pocket from proximate movement, to human body tubular tissue, cuts human body tubular tissue simultaneously, easy to operate, It is easy to use, reduce operation cost.

It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book With the other embodiments of understanding.

The series of detailed descriptions listed above only for feasible embodiment of the invention specifically Protection scope bright, that they are not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention Or change should all be included in the protection scope of the present invention.

Claims (13)

1. a kind of tissue closing device, it is characterised in that：The tissue closing device includes：

Can the first holder, the second holder with respect to opened/closed, formed after first holder and second holder closure and held Receive chamber；First holder and second holder include clip shell, the grip block being fixed in the clip shell, are located at the folder Between shell and the grip block and from proximate extend channel；Have on the grip block and is set from proximate interval Several openings in the channel and the accommodating chamber are set and be connected to, are located in each opening and being capable of edge in the opening Perpendicular to the grip block direction close to or far from the clip shell convex block, the convex block be equipped with runs through from proximate The convex block and the needle tray being connected to the accommodating chamber；The convex block on grip block on first holder and second holder It is shifted to install from proximate；

Can by drivingly in each channel from proximate movement it is several on the grip block gradually to drive The convex block towards the pushing block mobile away from the direction of the clip shell, the pushing block to distal end it is mobile after, be located at the pushing block proximal end Convex block be detached from the pushing block；

Elastic backing mechanism is ordinatedly respectively set along the both ends perpendicular to the grip block direction, the elasticity backing mechanism In on the convex block, the grip block；The pushing block drives the elastic backing mechanism towards away from the movement of the direction of the clip shell When, elastic deformation occurs for the elasticity backing mechanism, and when the convex block is detached from the pushing block, the elasticity backing mechanism is acted on The convex block is located at the convex block in the channel；

Can be by pocket component drivingly mobile from proximate, including nail pushing device, be movably connected on the nail pushing device A pair of of syringe needle, a pair of syringe needle of connection proximal end interconnecting piece；When the nail pushing device is mobile from proximate, Yi Duizhen Head respectively first holder, second holder grip block on convex block needle tray in move and be pierced into tubular tissue, Tubular tissue is gradually closed into a lotus by the distal end closure that tubular tissue pushes distally collapse to a pair of syringe needle to simultaneously Packet.

2. tissue closing device according to claim 1, it is characterised in that：The convex block includes opposite and spaced The connection wall of first wall and the second wall, connection first wall and second wall, first wall, the second wall and the connection Wall, which encloses, to be set to form the open needle tray in the side for facing away from the connection wall, and first wall is equipped with away from the side of the clip shell The wire casing extended from proximate, the elasticity backing mechanism is elastica, and the folder is fixed in one end of the elastica Hold the proximal end of plate, the other end is solid after the wire casing of each convex block in extending in the channel from proximate and sequentially passing through Due to the distal end of the grip block.

3. tissue closing device according to claim 1, it is characterised in that：The convex block includes opposite and spaced The connection wall of first wall and the second wall, connection first wall and second wall, first wall, the second wall and the connection Wall, which encloses, to be set to form the open needle tray in the side for facing away from the connection wall, and first wall is equipped with away from the side of the clip shell The wire casing extended from proximate, the elasticity backing mechanism include several elastic with each convex block cooperation respectively The both ends of line, each elastic line are individually fixed on the grip block of the proximal end positioned at the convex block, distal end, the son The middle section of elastica is located in the wire casing.

4. tissue closing device according to claim 1, it is characterised in that：On one in the opening and the convex block Column is oriented equipped at least one, another is equipped with the guide slot to match with the orientation column；The orientation column with it is described fixed It is matched to slot to guide the convex block close or away from clip shell movement.

5. tissue closing device according to claim 4, it is characterised in that：The convex block includes opposite and spaced The connection wall of first wall and the second wall, connection first wall and second wall, first wall, the second wall and the connection Wall, which encloses, to be set to form the open needle tray in the side for facing away from the connection wall, first wall away from the needle tray outside wall surface and Second wall is equipped at least one guide slot in the outside wall surface of the needle tray, and the opening has and the guide slot The orientation column matched；The orientation column is matched with the guide slot to guide the convex block close or move away from the clip shell It is dynamic.

6. tissue closing device according to claim 1, it is characterised in that：The convex block includes opposite and spaced The connection wall of first wall and the second wall, connection first wall and second wall, first wall, the second wall and the connection Wall, which encloses, to be set to form the open needle tray in the side for facing away from the connection wall, and the connection wall is equipped at least one from the company The limit film that the side of wall protrudes outward is connect, the limit film rides over the opening when the convex block is mobile away from the clip shell Edge play the role of limit its continue to move to.

7. tissue closing device according to claim 1, it is characterised in that：Each convex block is towards the one of the clip shell Side has the inclined surface positioned at proximal end, the plane positioned at the inclined surface distal end；The pushing block have positioned at distal end and with it is described The inclined plane part of inclined surface cooperation, the planar portions positioned at the inclined plane part proximal end.

8. tissue closing device according to claim 7, it is characterised in that：The planar portions are along proximate direction Width be greater than width of the convex block on proximate direction.

9. tissue closing device according to claim 1, it is characterised in that：A pair of syringe needle and the interconnecting piece form U-shaped thimble, the distal end of the grip block of first holder are equipped with the first binding block protruded out towards second holder, and described the One binding block is equipped with the first nail forming tank corresponding with the needle tray of convex block on the grip block；The clamping of second holder The distal end of plate is equipped with the second binding block protruded out towards the first holder, second binding block be equipped with it is convex on the grip block The corresponding second nail forming tank of the needle tray of block.

10. tissue closing device according to claim 1, it is characterised in that：The interconnecting piece be purse wire, described first The distal end of holder and/or second holder has the closed connector with a pair of syringe needle cooperation, the closed connector The upper accepting hole with for accommodating a pair of needle distal end.

11. tissue closing device described according to claim 1 ~ any one of 10, it is characterised in that：First holder Having in clip shell has along spaced two grip blocks of its width direction, the clip shell of second holder along its width Spend spaced two grip blocks in direction；The tissue closing device further includes can be by drivingly in each folder It holds mobile to drive the convex block on grip block towards away from described from proximate in the channel between plate and the clip shell The mobile pushing block in the direction of clip shell.

12. tissue closing device described according to claim 1 ~ any one of 10, it is characterised in that：First holder Having in clip shell has along spaced two grip blocks of its width direction, the clip shell of second holder along its width Spend spaced two grip blocks in direction；The tissue closing device further includes can be by drivingly in each folder It is mobile to drive two simultaneously from proximate in channel between shell and two grip blocks in clip shell described in this Convex block court on a grip block deviates from the pushing block of the direction movement of the clip shell.

13. a kind of medical instrument, including instrument body, it is removably attachable to the tissue closure dress of the instrument body distal end It sets, be connected to the percussion lock for firing the tissue closing device in the instrument body, it is characterised in that：The tissue closes It attaches together and is set to tissue closing device described in any one of claim 1 ~ 12.