CN206120389U - Organize closing device , organize closure assembly and be furnished with this tissue closure assembly's medical instrument - Google Patents

Abstract

The utility model discloses an organize closing device, organize closure assembly and be furnished with this tissue closure assembly's medical instrument, including the base, with base complex clamp plate to and push away nail block, wherein the clamp plate its include and open a position and a closed position, when the clamp plate lies in closed position, the clamp plate with but the base cooperation forms holding part tubular tissue 's first accommodation space, it includes an initial position, a nail closed position and one retracts the position to push away nail block, initial position is located the near -end of nail closed position and first accommodation space retracts the position and is located between initial position and the nail closed position, organize closing device still including putting nail portion, put nail portion set up in the base distal end just is used for placing the cutter, works as push away nail block from nail closed position when retracting the position and remove, push away nail block with the cutter cooperation is in order to take movable cutter to remove in order to cut off the tissue to the near -end from the base distal end. The utility model discloses a what provide organizes closing device easy operation, convenient to use, has further reduced the operation cost.

Description

Tissue closing device, tissue closure component and it is furnished with the medical treatment of the tissue closure component Apparatus

Technical field

This utility model is related to technical field of medical instruments, more particularly to a kind of tissue closing device, tissue closure component And it is furnished with the medical apparatus and instruments of the tissue closure component.

Background technology

In existing gastral anastomosiss, linear type or arc line shaped anastomat are usually first used to pipe Carry out detachment coincide, reuse circular-pipe anastomat carry out the tissue to detachment carry out docking coincide.So, when using linear type Or arc line shaped anastomat pipe is carried out detachment coincide after, as anastomotic stoma is wire, so reuse tubular type Can there is cat ear during Anastomat hemorrhoidal circumcision, have the risk of fistula, and high cost of performing the operation.

Utility model content

The purpose of this utility model is to provide a kind of tissue closing device, tissue closure component and be furnished with the tissue closure The medical apparatus and instruments of component.

To realize one of above-mentioned utility model purpose, one embodiment of this utility model provides a kind of tissue closing device, Including base and the pressing plate of base engagement, and ejector pin block, wherein the pressing plate be set to can relatively described base rotation, its Including an open position and a make position, when the pressing plate is located at make position, the pressing plate and the base engagement shape First accommodation space of the accommodating part tubular tissues of Cheng Yike；The ejector pin block include an initial position, one nail make position and One retracts position, and the initial position is located at the near-end of the nail make position and first accommodation space, described to retract position Setting between the initial position and nail make position；The tissue closing device also includes putting nail portion, and the nail portion of putting sets Be placed in the base distal end and for placing cutting knife, when the ejector pin block from nail make position to retract position and move when, it is described Ejector pin block coordinates to drive cutting knife to be moved proximally to from the base distal end to cut off tissue with the cutting knife.

Used as the further improvement of this utility model embodiment, the nail portion of putting is additionally operable to place at least one closure Nail, the ejector pin block and the nail portion of putting are set to ordinatedly order about the structure positioned at the closure nail molding for putting nail portion, described When ejector pin block drives the closure nail molding by proximate, the cutting knife is maintained static relative to the nail portion of putting, so as to Tissue is not cut.

Used as the further improvement of this utility model embodiment, the closure nail is set to two, and described two closes Dowel is respectively positioned at the both sides of the cutting knife.

Used as the further improvement of this utility model embodiment, the nail portion of putting is provided with step, to limit the closure Nail proximally direction movement, it is when the ejector pin block is connected with the cutting knife and drives the cutting knife to move proximally to, described to close Dowel is remained stationary as relative to the nail portion of putting.

Used as the further improvement of this utility model embodiment, the ejector pin block has for the closure nail molding Nail forming tank and the side wall for compression organization, the side wall are higher than the nail forming tank.

Used as the further improvement of this utility model embodiment, the ejector pin block is located in being provided between the side wall Wall, the mesospore are less than the side wall.

Used as the further improvement of this utility model embodiment, the mesospore has the recessed empty portion of arc.

Used as the further improvement of this utility model embodiment, the cutting knife is included for cutting off the cutting part organized, And respectively positioned at the opposite sides and the first connecting portion that is connected with the cutting part and second connecting portion of the cutting part, institute State first connecting portion and second connecting portion is selectively disengaged or connected with the ejector pin block.

Used as the further improvement of this utility model embodiment, the cutting part is provided with for bottom is organized cut-out Halberd sword, the halberd cutlery have point.

As the further improvement of this utility model embodiment, it is additionally provided with the cutting part for the cut-out side wall that slides The inclined edge of tissue, the inclined edge is along curve extension, and the inclined edge is in smoothing junction with the halberd sword, and the inclined edge is set to two It is individual, and described two inclined edges are distributed in the both sides of the halberd sword.

As the further improvement of this utility model embodiment, it is equipped with the first connecting portion and second connecting portion Mating part, the ejector pin block have the junction surface for selectively connecting with the mating part or disengaging.

Used as the further improvement of this utility model embodiment, the mating part is buckle, and the junction surface is projection.

Used as the further improvement of this utility model embodiment, the cutting knife has mating part, and the ejector pin block has The junction surface for selectively connecting with the mating part or disengaging, when the ejector pin block is moved from nail make position to position is retracted When, the mating part connect with the junction surface so that the ejector pin block drive cutting knife from the base distal end move proximally to Cut-out tissue, when the ejector pin block is moved from initial position to nail make position, the mating part is disengaged with the junction surface.

Used as the further improvement of this utility model embodiment, the mating part is buckle, and the junction surface is projection.

To realize one of above-mentioned utility model purpose, one embodiment of this utility model provides a kind of tissue closure component, Wherein described tissue closure component includes the tissue closing device described in any of the above-described technical scheme, and can be assembled to described The cutting knife of tissue closing device, in closing course, when the ejector pin block is in initial position and is moved by proximate, The cutting knife is disengaged with the ejector pin block, when the ejector pin block is in nail make position and is moved proximally to by distal end, described Ejector pin block coordinates to drive cutting knife to be moved proximally to from the base distal end to cut off tissue with the cutting knife.

Used as the further improvement of this utility model embodiment, the tissue closure component is also described including being assembled to The closure nail of tissue closing device, in closing course, when the ejector pin block is located at initial position, the freedom of the closure nail End is relative with the ejector pin block, and when the ejector pin block is located at nail make position, the free end of the closure nail receives the ejector pin Block acts on bending forming.

To realize one of above-mentioned utility model purpose, one embodiment of this utility model provides a kind of medical apparatus and instruments, including Instrument body, the percussion handle for connecting the instrument body, wherein the medical apparatus and instruments also include any of the above-described technical scheme Described tissue closing device, the tissue closing device are removably connected the instrument body.

Compared with prior art, the beneficial effects of the utility model are：Cutting knife is provided with, and when the ejector pin block is closed from nail Close position to retract position and move when, the ejector pin block and the cutting knife coordinate with drive cutting knife from the base distal end proximally Move to cut off tissue.The utility model is simple to operate, easy to use, further reduces operation cost.

Description of the drawings

Fig. 1 is the schematic perspective view of medical apparatus and instruments in one embodiment of this utility model；

Fig. 2 is the schematic perspective view of tissue closure component in one embodiment of this utility model, and now pressing plate is in closure Position；

Fig. 3 is another schematic perspective view of tissue closure component in one embodiment of this utility model, now removes bluff piece, And pressing plate is in the close position；

Fig. 4 is the three-dimensional exploded view of tissue closure component in one embodiment of this utility model；

Fig. 5 is another schematic perspective view of tissue closure component in one embodiment of this utility model, and now pressing plate is in Open position；

Fig. 6 a are the sectional view of the ejector pin block in initial position of tissue closure component in one embodiment of this utility model；

Fig. 6 b are the ejector pin blocks of tissue closure component in one embodiment of this utility model from initial position to nail closure position Put the sectional view in motor process；

Fig. 6 c are the section views that the ejector pin block of tissue closure component in one embodiment of this utility model reaches nail make position Figure；

Fig. 6 d are the ejector pin blocks of tissue closure component in one embodiment of this utility model from following closely make position to retracting position Put the sectional view in motor process；

Fig. 7 is the schematic perspective view of ejector pin block in one embodiment of this utility model；

Fig. 8 is the schematic perspective view of cutting knife in one embodiment of this utility model；

Fig. 9 a are the schematic perspective views that nail is closed in one embodiment of this utility model；

Fig. 9 b are the front views of the closure nail shown in Fig. 9 a；

Fig. 9 c are the schematic perspective views after the closure nail bending shown in Fig. 9 a；

Figure 10 a are the schematic perspective views that nail is closed in this utility model second embodiment；

Figure 10 b are the front views of the closure nail shown in Figure 10 a；

Figure 11 a are the front views that nail is closed in the 3rd embodiment of this utility model；

Figure 11 b are the front views after the closure nail bending shown in Figure 11 a；

Figure 12 a are the front views that nail is closed in the 4th embodiment of this utility model；

Figure 12 b are the front views after the closure nail bending shown in Figure 12 a；

Figure 13 a are the front views that nail is closed in the 5th embodiment of this utility model；

Figure 13 b are the front views after the closure nail bending shown in Figure 13 a.

Specific embodiment

This utility model is described in detail below with reference to specific embodiment shown in the drawings.But these embodiment party Formula is not intended to limit this utility model, structure that one of ordinary skill in the art is made according to these embodiments, method or Conversion functionally is all contained in protection domain of the present utility model.

It is clearly to express position described in this utility model and direction, using exercises on apparatus author as reference, close One end of operator is near-end, is distal end away from one end of operator.It is after closure nail reaches make position, by remote to retract position End proximal movement during initial position with nail make position in the middle of position.

As shown in figure 1, the utility model discloses a kind of embodiment of medical apparatus and instruments, medical apparatus and instruments can be used for digestive tract Anastomosis operation in, which includes instrument body 10, is pivotally connected to the percussion handle 12 of instrument body 10, and removably connects Connect the tissue closing device 14 of instrument body 10.Usually, tissue closing device 14 is arranged at the distal end of instrument body 10.

The structure of instrument body 10, can continue to use the instrument body structure of existing linear type or arc line shaped anastomat, also may be used With individually designed, it is to be understood that as long as the structure of the instrument body 10 can coordinate tissue closing device 14 to work. In the following description, by using the instrument body structure of existing linear type or arc line type anastomat as the device in present embodiment 10 structure of tool body is illustrated.

In addition, the invention also discloses a kind of embodiment of tissue closure component, tissue closure component includes Tissue closing device 14 and the closure nail 16 of tissue closing device 14 can be assembled to.Tissue closing device 14 and closure nail 16 Structure and occupation mode will be described in detail following.

As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, tissue closing device 14 includes connecting portion 18, base 20, and base 20 coordinate Pressing plate 22, ejector pin block 24, and put nail portion 26.

Wherein, connecting portion 18 is used to connect instrument body 10.Base 20 is arranged at the distal end of connecting portion 18, and which can and connect Socket part 18 is integrally formed.

In this preferred embodiment, the connect base 20 of 22 rotor of pressing plate so that pressing plate 22 can respect thereto 20 rotate.Its In, put the distal end that nail portion 26 is arranged at base 20.

Further, put nail portion 26 the inner side diapire in nail portion 26 and the inner side bottom of base 20 are integrally formed and put with base 20 Wall is seamlessly transitted by cambered surface or inclined-plane.

In the present embodiment, put nail portion 26 cross section be set to it is U-shaped.

Further, pressing plate 22 includes an open position and a make position, such as 22 pivotally supported two poles of pressing plate Extreme position is close to extreme position（Caused by the error occurred because of mechanical engagement）, when pressing plate 22 is located at make position, pressing plate 22 and base 20 can cooperatively form one for housing the first accommodation space 30 of part tubular tissue, first accommodation space 30 is The cavity of both ends open.In operation, tubular tissue can be included in open position（Such as intestinal etc.）, in make position part Tubular tissue is located between pressing plate 22 and base 20.

In one embodiment of this utility model, put nail portion 26 and be formed with one second accommodation space 32, the second accommodation space 32 connect with the first accommodation space 30, i.e. the opening of the second accommodation space 32 towards ejector pin block 24, wherein, the second accommodation space 32 Height more than the first accommodation space 30 height, be that base 20 is open to the distance of pressing plate 22 less than the second accommodation space 32 Bore.

Further, put nail portion 26 to can be additionally used in placing at least one closure nail 16.Ejector pin block 24 and put nail portion 26 and arrange Can ordinatedly to order about the structure positioned at closure 16 molding of nail put in nail portion 26.

In addition, tissue closure component also includes the cutting knife 31 for being assembled to tissue closing device 14, put nail portion 26 and be arranged at bottom 20 distal ends of seat and for placing cutting knife 31.

As shown in figure 4, in this preferred embodiment, putting nail portion 26 and can once be put into two closure nails 16.Specifically, two are closed Dowel 16 is respectively positioned at the both sides of cutting knife 31.As such, it is possible to while to organizing the formation of two boundling pockets.It is of course also possible to set It is set to, puts nail portion 26 and can only once be put into a closure nail 16, or be put into plural closure nail 16.Correspondingly, second holds Between being empty, 32 include at least one nailed groove（It is not shown）, nailed groove can be formed by 26 inwall of nail portion is put, and may also set up in putting nail On the inwall in portion 26.

Further, tissue closing device 14 also includes nail kit, and nail kit is connected with the nailed groove for putting nail portion 26, set in nail kit There is nail pushing structure（Such as back-moving spring）, the closure nail 16 in nail kit is loaded into nailed groove, you can nailed groove is worked as in realization It is middle without closure nail 16 when（Such as percussion is finished, after tissue is removed）, next closure is followed closely into 16 automatically and is filled into nailed groove 321 In.

Further, nail kit is arranged at and puts in nail portion 26, is such as arranged at and puts nail portion 26 and be open relative nail portion 26 of putting This is in vivo.Certainly, the nail kit can also be flexibly connected and put nail portion 26, to be convenient for changing and load closure nail 16.

In addition, being additionally provided with bluff piece 44 in the distal end of base 20（Referring to Fig. 5）, so, tissue and doctor are being included in adjustment During position, closure nail 16 and cutting knife 31 will not be touched, so as to not result in injury.Wherein, when initial, bluff piece 44 is coated on far End indentation, there, during ejector pin block 24 is moved from initial position to nail make position, with the compression of tissue, 44 quilt of bluff piece Tighten up and be extruded to the neighbouring distal end for putting nail portion 26.In this preferred embodiment, the material of bluff piece 44 is elastic film.

Furthermore, the concrete shape of ejector pin block 24 is not limited, as long as its can coordinate put nail portion 26 order about closure nail 16 molding Complete the closure to organizing.A kind of distal end end face of the ejector pin block 24 in mode is set to plane forming tank, such as This, during ejector pin block 24 is moved from initial position to nail make position（As shown in 6c）, located at the first accommodation space 30 Interior tubular tissue is gradually drawn in the second accommodation space 32, and is finally all contained in the second accommodation space 32.Can manage Solution, in operation, when ejector pin block 24 is in initial position, no matter in the first accommodation space 30 and the second accommodation space 32 Tubular tissue is inside placed with, and still only tubular tissue is placed with the first accommodation space 30, when ejector pin block 24 is by initial bit Put in nail make position motor process, the tubular tissue located at the first accommodation space 30 will all be pushed into the second accommodation space 32 It is interior, so that when ejector pin block 24 reaches nail make position, the tubular tissue to drawing in the second accommodation space 32 plays boundling pocket.

The distal end end face of ejector pin block 24 in a further mode of operation may be configured as the forming tank of arc.Thus, working as ejector pin block During 24 from initial position to nail make position motor process, the curved end of forming tank is contacted with closure nail 16 first, and is being pushed away Open end in the lasting movement of nail block 24 to closure nail 16 applies pressure, makes the open end bending of closure nail 16, to what is drawn in Tubular tissue plays boundling pocket.Wherein, forming tank can form the 3rd accommodation space 34, organized with accommodating part tubular, work as ejector pin When block 24 reaches nail make position, the 3rd accommodation space 34 can close the second accommodation space in the axial direction of component closing device 32, increased the receiving space size of tubular tissue.It is understood that the 3rd accommodation space 34 actually the first accommodation space 30 A part.

It is understood that when the forming tank of ejector pin block 24 is arranged to different shape, the shape of the nail of institute's molding also with Change, for example：The nail of similar " B " font can also be formed by setting after closure.

Ejector pin block 24 includes an initial position and a nail make position, and initial position is located at nail make position and first and houses The near-end in space 30（As shown in 6a）.Usually, when ejector pin block 24 is located at initial position, its near-end to pressing plate 22 does not occur Effect, now pressing plate 22 is opened, and can include tubular tissue to be performed the operation；When ejector pin block 24 is from initial position to nail make position When mobile, which may act on the near-end of pressing plate 22 near base 20, reach the make position of pressing plate 22, and its operation principle can be joined directly In line style or arc line shaped anastomat, I-shaped knife and nail bin, the fit structure of nail anvil, will not be described here.

Further, ejector pin block 24 also retracts position including one, and specifically, initial position is located at nail make position and first The near-end of accommodation space（Referring to Fig. 6 a）, position is retracted positioned at initial position and follow closely between make position（Referring to Fig. 6 d）.This reality It is to follow closely make position to the position in the motor process of initial position direction with the new position that retracts, that is, by distal end proximally Position in moving process.

With further reference to Fig. 6 c and 6d, when ejector pin block 24 from nail make position to retract position and move when, ejector pin block 24 with Cutting knife 31 coordinates to drive cutting knife 31 to be moved proximally to from 20 distal end of base to cut off tissue, retracts position when ejector pin block 24 is reached When, cutting knife 31 is cutting tissue or is having been turned off tissue, and final ejector pin block returns to initial position to open the pressing plate 22.

Furthermore, cutting knife 31 is selectively disengaged or is connected with ejector pin block 24, wherein such as Fig. 6 a, during initial position, ejector pin block 24 are disengaged with cutting knife 31, and during nail make position, ejector pin block 24 is connected with cutting knife 31.Specifically, during initial position, ejector pin block 24 In the near-end of base 20, and cutting knife 31 is located at the distal end of base 20 and is placed in nail portion 26 of putting, now cutting knife 31 and ejector pin block 24 Disengage.During nail make position, ejector pin block 24 moves to the distal end of base 20, and now ejector pin block 24 promotes closure nail closed moulding, And ejector pin block 24 with connect positioned at the cutting knife 31 for putting nail portion 26.Then, ejector pin block 24 is moved from nail make position to position is retracted, Now ejector pin block 24 drives cutting knife 31 to move proximally to from 20 distal end of base, so as to cut off tissue.Specifically, cutting knife 31 has and matches somebody with somebody Socket part 40, ejector pin block 24 have the junction surface 42 for selectively connecting with mating part 40 or disengaging, when ejector pin block 24 is from nail closure Position to retract position and move when, mating part 40 is connected with junction surface 42 so that ejector pin block 24 drives cutting knife 31 from 20 distal end of base Move proximally to cut off tissue, when ejector pin block 24 is moved from initial position to nail make position, mating part 40 and junction surface 42 disengage.Further, mating part 40 is buckle, and junction surface 42 is projection.

In this preferred embodiment, in initial position, ejector pin block 24 is disengaged with cutting knife 31, is now fired Molding forms the operation of pocket；After closure nail 16 fires closure forms pocket, ejector pin block 24 is coordinated with cutting knife 31 to be cut with driving Knife 31 is moved proximally to from 20 distal end of base, then is cut the tissue for having formed pocket, and pocket is being closed in cutting Remain stationary as in the presence of device.It is this first to close the safety that on the one hand mode cut afterwards ensure that operation, it is to avoid in lotus Bag cuts the risk of tissue in the case of not having to be formed；Meanwhile, nail closed moulding is carried out with cutting apart, apparatus is also reduced Percussion force, improve the reliability of apparatus；The cutting tissue under pocket stationary state, it is ensured that keep lip by design specification Side；And it is simple to operate, easy to use, further reduce operation cost.

As shown in fig. 7, in this preferred embodiment, ejector pin block 24 has nail forming tank 43, the both sides of the nail forming tank 43 The side wall 46 of compression organization is respectively provided with, side wall 46 is arranged higher than nail forming tank 43, i.e., side wall is located closer to and puts nail The side of groove, that is, side wall 46, positioned at the distal end of nail forming tank 43, the side wall 46 is thin-walled.So, realize and first compress Tissue, then 16 reshapings of closure nail, so that it is guaranteed that in tissue income closure nail 16 completely, while the side wall 46 of thin wall shape can be with Ensure there are enough compressions to tissue, obtain larger compression ratio.Wherein, with cutting knife 31（Referring to Fig. 6 d）The junction surface 42 for connecting It is arranged at side wall 46.

Further, mesospore 48 is provided between the two side 46 of ejector pin block 24, wherein mesospore 48 is less than side wall 46, i.e., Mesospore 48 is located at the near-end of the nail forming tank 43.So, space segment of the mesospore 48 less than side wall 46, i.e., between two side Hollowed out, defined escape space when being organized in by compressing, reduced the contact area of mesospore 48 and tissue, more Added with beneficial to 46 compression organization of side wall, so as to reduce percussion force.Specifically, mesospore 48 has the recessed empty portion of arc, with reduction and group The contact area knitted.

With further reference to Fig. 6 b and 6c, in this preferred embodiment, ejector pin block 24 is from initial position to the fortune of nail make position During dynamic, ejector pin block 24 drives closure 16 molding of nail with nail portion 26 is put, and now cutting knife 31 is maintained static relative to nail portion 26 is put, So as to not cut tissue.When ejector pin block 24 reaches nail make position, closed pair tissue plays boundling pocket to closure nail 16, together When ejector pin block 24 connect with cutting knife 31.Referring to Fig. 6 d, when ejector pin block 24 from nail make position in the motor process for retracting position, During i.e. by distal end proximal movement, ejector pin block 24 is connected and drives cutting knife 31 to move to form pocket to cut with cutting knife 31 Tissue afterwards, now closes nail 16 and remains stationary as relative to nail portion 26 is put.So, cut during 24 rollback of ejector pin block Disconnected tissue, operates very simple.In addition, during initial position, cutting knife 31 is located at the distal end of base 20, when 16 closure of closure nail is with right After tissue plays boundling pocket, 31 ability of cutting knife is moved to cut the tissue after knotting, so that closing under the driving of ejector pin block 24 During 16 unshaped of dowel, cutting knife 31 does not injure tissue.

Specifically, put nail portion 26（Referring to Fig. 6 d）It is provided with step（It is not shown）, so as to limit the proximally direction of closure nail 16 It is mobile.So, keeping being cut during pocket is motionless, the lip after cutting can made to cut according to plan, do not resulted in Pocket or the operative failure for making lip narrow and causing are damaged, while ensureing the concordance of cutting posterior lip hem width degree.Preferably, Distance of the cutting knife 31 away from pocket is 3mm ~ 5mm for the width of 3mm ~ 5mm, i.e. lip.The reliability of pocket was so both ensured；And energy The volume of guarantee pocket is not very big, enters the reconstruction organized in tube type anastomat during facilitating subsequent procedures.

As shown in figure 8, cutting knife 31 is included for cutting off the cutting part 56 organized, and respectively positioned at relative the two of cutting part 56 Side and the first connecting portion 58 that is connected with cutting part 56 and second connecting portion 60.Cutting part 56 is provided with for diapire is organized The halberd sword 54 of cut-out, halberd sword 54 have point.Further, it is additionally provided with cutting part 56 for the cut-out side wall tissue that slides Inclined edge 52.Specifically, inclined edge 52 is set to two, and two inclined edges 52 are distributed in the both sides of halberd sword 54.Halberd sword 54 is used for lotus Bag diapire tissue is two sections from central cutout, further improves detachment performance.Specifically, halberd sword 54 has point.So as to incite somebody to action Tissue penetration, it is ensured that detachment will be organized.

In this preferred embodiment, inclined edge 52 is along curve extension, and inclined edge 52 is in smoothing junction with halberd sword 54.Inclined edge 52 and halberd sword 54 form similar to being halberd sword in the middle part of " W " shape knife, i.e. " W " shape knife, and both sides are inclined edge.In addition, inclined edge 52 forms recessed with halberd sword 54 Enter portion, in being easy to 31 moving process of cutting knife, contact with boundling pocket and cut off tissue.Preferably, in the moving process of cutting knife 31 In, halberd sword 54 first touches boundling pocket its center detachment, next, inclined edge 52 also touches boundling pocket and cuts, enters And inclined edge 52 and halberd sword 54 cut off tissue together.

In this preferred embodiment, first connecting portion 58 and second connecting portion 60 are optionally connected or are taken off with ejector pin block 24 Open.That is, mating part 40 is in first connecting portion 58 and second connecting portion 60.Specifically, cutting part 56 and mating part 40 are located at the relative two ends of first connecting portion 58 and second connecting portion 60 respectively.In addition, inclined edge 52 respectively with first connecting portion 58 With 60 one-tenth obtuse angles of second connecting portion.

In this preferred embodiment, can be provided with draw-in groove in first connecting portion 58 and second connecting portion 60（Do not scheme Show）, cutting part 56 is fixed in draw-in groove.In addition, cutting part 56, first connecting portion 58 and second connecting portion 60 can be welded on Together.Certainly, can also adopt between cutting part 56, first connecting portion 58 and second connecting portion 60 and be integrally formed.

As shown in Fig. 9 a, Fig. 9 b and Fig. 9 c, this preferred embodiment also discloses a kind of closing for tissue closure component 14 Dowel 16, wherein tissue closure component include tissue closing device, and closure nail 16 can be assembled to tissue closing device, and tissue is closed Attaching together to put can operatively be made closure follow closely 16 bending formings.As long as in addition, tissue closing device is designed to, when operation percussion handle 12, tissue closing device action can be driven to promote closure 16 bending formings of nail, in this not go into detail.Following emphasis Closure member 16 is described in detail.

Closure nail 16 includes base portion 62, the connecting portion 64 being connected with base portion 62, the first side being connected with connecting portion 64 Portion 66 and the second sidepiece 68, wherein the first sidepiece 66 and the second sidepiece 68 are located at the both sides of connecting portion 64, and the first sidepiece respectively 66 and second form opening between sidepiece 68, and base portion 62 constitutes the closed channel 70 passed through for apparatus.

In this preferred embodiment, as the base portion 62 of closure nail 16 constitutes the closed channel 70 passed through for apparatus, therefore When the apparatuses such as leading screw are penetrated, apparatus can be entered from closed channel 70, can't touch pocket, so as to apply external force To pocket, and then it is not result in that pocket is slipped because of stress.Therefore the closure nail 16 not only facilitates apparatus to enter, and is avoided that Enter fashionable pocket stress in apparatus to slip.

First sidepiece 66 and the second sidepiece 68 are provided with Spina jujubae portion 72 in the side of adjacent base 62.So, Spina jujubae portion 72 can be pierced into tissue, so as to catch tissue adherence layer, it is therefore prevented that tissue is slipped.Preferably, Spina jujubae portion 72 is near connecting portion 64 direction extends.Certainly, Spina jujubae portion 72 can also be designed to other directions extend.

Further, the Spina jujubae portion 72 on the first sidepiece 66 and the second sidepiece 68 is set to a plurality of.Specifically, this is preferred In embodiment, it is respectively provided with 3 Spina jujubae portions 72, and the first sidepiece 66 and the second sidepiece 68 on the first sidepiece 66 and the second sidepiece 68 Spina jujubae portion 72 be symmetrical arranged.Certainly, the Spina jujubae portion 72 of other quantity can also be set on the first sidepiece 66 and the second sidepiece 68. Equally, the Spina jujubae portion 72 on the first sidepiece 66 and the second sidepiece 68 can also be arranged to asymmetric.

In addition, step 74 on the first sidepiece 66 and the second sidepiece 68, is respectively provided with, and step 74 and Spina jujubae portion 72 are located at respectively The relative both sides of first sidepiece 66 and the second sidepiece 68.Step 74 is conducive to closure 16 bending formings of nail, while coordinate putting nail portion 26 step（It is not shown）The pocket after molding is avoided to move during cutting knife 31 is pulled.

In this preferred embodiment, the free end of the first sidepiece 66 and the second sidepiece 68 is set to chamfering, to close nail 16 In nail 43 closed moulding of forming tank.

In closing course, when ejector pin block 24 is located at initial position, the free end of closure nail 16 is relative with ejector pin block 24, Specifically, the free end of the first sidepiece 66 and the second sidepiece 68 is relative with ejector pin block 24.When ejector pin block 24 is located at nail closure position When putting, the free end of closure nail 16 contains the tubular tissue after drawing in and is acted on bending forming by ejector pin block 24, specifically, the The free end of one sidepiece 66 and the second sidepiece 68 accommodates the tubular tissue after drawing in and by the effect bending of ejector pin block 24, so as to be formed Shape after closure as is shown in fig. 9 c.

Preferably, 68 parallel setting of the first sidepiece 66 and the second sidepiece.Certainly, the first sidepiece 66 and the second sidepiece 68 Can be arranged to not parallel and slightly have a certain degree.

In this preferred embodiment, closed channel 70 is circular channel.Closed channel 70 is typically for circular-pipe anastomat What the apparatuses such as leading screw were penetrated.Certainly, closed channel 70 can also be designed to other shapes of passage.

Further it will be understood that in this preferred embodiment, at least one sharp portion 76 can be also provided with connecting portion 64. So, after closure tissue, sharp portion 76 is pierced into tissue, further increases and grabs histozoic dynamics, is better protected from tissue Slip in stress.Certainly, also sharp portion 76 can not be set in the connecting portion 64 of closure nail 16 in present embodiment.

Further, two sharp portions 76 are set on connecting portion 64.Two sharp portions 76 are equally used for catching tissue, prevent tissue Disengage.Specifically, the center of connecting portion 64 defines a centrage 78 with the center of closed channel 70, and two on connecting portion 64 are sharp Thorn portion 76 is symmetrical arranged relative to centrage 78.Certainly, two sharp portions 76 on connecting portion 64 can also relative to centrage 78 It is arranged to asymmetric.

In addition, in pressing plate 22（Referring to Fig. 1）In closing course, when ejector pin block 24（Referring to Fig. 1）Positioned at initial position When, first sidepiece 66 and the second sidepiece 68 of closure nail 16 is relative with ejector pin block 24, referring to Fig. 5, when ejector pin block 24 is closed in nail When closing position, the first sidepiece 66 of closure nail 16 and the second sidepiece 68 are acted on bending forming by ejector pin block 24.

With further reference to Fig. 3, when operation tissue closing device applies pressure to the free end of closure nail 16, closure is made to follow closely 16 Free end bend when, closure nail 16 the first sidepiece 66 and the second sidepiece 68 free end from respective step 74 respectively to In bend, so as to draw in tubular tissue formed boundling pocket；Certainly, first sidepiece 66 and the second sidepiece 68 of closure nail 16 Free end can not also set step, closure nail 16 also can bending forming.It is of course also possible to as needed by tissue closing device Ejector pin block 24 forming tank 43（Referring to Fig. 7）It is arranged to different shape, the shape of the closure nail 16 of such institute molding is also therewith Change, for example：The nail of similar " B " font can also be formed by setting after closure.As long as it is understood that energy after closure The tubular tissue for drawing in is played into boundling pocket.

Closure nail 16 can be made of peg, or have the other materials of some strength and elasticity by other.

Specifically, in this preferred embodiment, when operation tissue closing device, ejector pin block 24 is from initial position to nail closure position During putting movement, first sidepiece 66 and the second sidepiece 68 of the nail forming tank 43 and closure nail 16 of ejector pin block 24 are abutted and are made 68 bending forming of its first sidepiece 66 and the second sidepiece, when ejector pin block 24 moves to nail make position, closure nail 16 is bent into Type, so as to tissue is beaten boundling pocket, while the junction surface 42 of ejector pin block 24 is connected with the mating part 40 of cutting knife 31.When ejector pin block 24 from nail make position to retract position move during, ejector pin block 24 drive cutting knife 31 proximally move from the distal end of base 20 It is dynamic, so as to the tissue cut-out after pocket will be formed.

To sum up, tissue closing device of the present utility model, tissue closure component, medical apparatus and instruments, can form center gathering Boundling pocket, reduces the risk of " cat ear " and fistula is produced after follow-up circular-pipe anastomat coincide, in addition, in closure tissue, Once-through operation is needed only, it is easy to use, reduce operation cost.Furthermore, after closure tissue, tissue is cut off, is made Must close nail 16 it is unformed when, cutting knife 31 will not injure tissue, and while ensure to cut the concordance of posterior lip hem width degree.

As as-shown-in figures 10 a and 10b, the second preferred embodiment of the closure nail 16 that this utility model is provided, the embodiment Be not both with closure nail 16 in first embodiment, Spina jujubae is not provided with the first sidepiece 66 and the second sidepiece 68, on base portion 62 Extension rod 80 is provided with, wherein extension rod 80 is located at the relative both sides of base portion 62 with connecting portion 64.Specifically, extension rod 80 has point Barbed end.

In this preferred embodiment, extension rod 80 is set to three, wherein the extended line of first extension rod 80 passes through base portion 62 center, wherein two other extension rod 80 are symmetrical arranged relative to the first extension rod 80.It is of course also possible to arrange other numbers The extension rod of amount.

As shown in Figure 11 a and Figure 11 b, this utility model provide closure nail third preferred embodiment, the embodiment with In first embodiment, closure nail 16 is not both, and closure nail 84 is not provided with closed channel, closure nail 84 include first sidepiece 86, The second sidepiece 88 being oppositely arranged with the first sidepiece 86 and the bottom 90 for being connected the first sidepiece 86 and the second sidepiece 88.Wherein first Peristome 92 is formed between sidepiece 86 and the second sidepiece 88, bottom 90 is relative with peristome 92, and bottom 90 is provided with least one Individual Spina jujubae.

So, the Spina jujubae on bottom 90 can pass through the mucous layer of tissue, boundling pocket compare when closure nail 84 is closed Firmly so that pocket when dilatory by external force is not easy to slip.

In addition, the free end of the first sidepiece 86 and the second sidepiece 88 is set to chamfering, to close nail 84 in nail forming tank Closed moulding.

In one preferred embodiment, specifically, bottom 90 is provided with the first Spina jujubae 94 and the second Spina jujubae 96, wherein the first Spina jujubae 94 and second Spina jujubae 96 be symmetrical arranged.Certainly, the first Spina jujubae 94 and the second Spina jujubae 96 can also be arranged to asymmetric.

First Spina jujubae 94 is identical with the length of the second Spina jujubae 96.It is described in detail with the first Spina jujubae 94, the first Spina jujubae 94 First end is located at bottom 90, and the second end of the first Spina jujubae 94 is end, by the end of the first Spina jujubae 94 and perpendicular to the first spine Thorn 94 defines a vertical line 97, and after closure is followed closely 84 and is bent molding, the bending part 98 of the first sidepiece 86 and the second side The bending part 100 in portion 88 is intersected with vertical line 97.So so that boundling pocket is more firm, further prevent by outer Slip when power is dilatory.

Further, since the first Spina jujubae 94 is identical with the length of the second Spina jujubae 96, therefore vertical line 97 is also by the second Spina jujubae 96 end.Certainly, the length of the first Spina jujubae 94 and the second Spina jujubae 96 can also be arranged to differ.Preferably, the first Spina jujubae 94 and second Spina jujubae 96 length in the space that surrounded after closure 84 closed mouldings of nail, to avoid damage to tissue.

Further, the first sidepiece 86 and the second sidepiece 88 define the first plane, after closure nail 84 is bent molding, The projection on the first plane of the bending part 98 of the first sidepiece 86 is with the bending part 100 of the second sidepiece 88 on the first plane Projection cross one another.In addition, having centrage 102, the bending of the first sidepiece 86 between the first sidepiece 86 and the second sidepiece 88 Intersecting between the projection on the first plane of the projection on the first plane of part 98 and the bending part 100 of the second sidepiece 88 Point is on centrage 102, certain nor being utterly located on centrage 102.

In addition, the bending part 98 of the first sidepiece 86 bending part projected with the second sidepiece 88 on the first plane 100 projections on the first plane are respectively positioned on outside the first Spina jujubae 94 and the second Spina jujubae 96, i.e. the bending part of the second sidepiece 88 100 projection is located between the first sidepiece 86 and the first Spina jujubae 94, the projection of the bending part 98 of the first sidepiece 86 is located at second Between sidepiece 88 and the second Spina jujubae 96.

As depicted in figs. 12 a and 12b, this utility model provide closure nail the 4th preferred embodiment, the embodiment with Third preferred embodiment is compared, and in the embodiment, closure nail 106 equally includes the first sidepiece 86, relative with the first sidepiece 86 sets The second sidepiece 88 put and the bottom 90 of the first sidepiece 86 of connection and the second sidepiece 88.Wherein the first sidepiece 86 and the second sidepiece 88 Between formed peristome 92, bottom 90 is relative with peristome 92, and bottom 90 is provided with least one Spina jujubae.

Equally, after closure nail 106 is bent molding, the bending part 108 of the first sidepiece 86 and the second sidepiece 88 it is curved Intersect with vertical line 97 folding part point 110.Further, since the first Spina jujubae 94 is identical with the length of the second Spina jujubae 96, therefore vertically End of the line 97 also by the second Spina jujubae 96.Certainly, the length of the first Spina jujubae 94 and the second Spina jujubae 96 can also be arranged to not phase Together.Preferably, in the space surrounded after closure 84 closed mouldings of nail by the length of the first Spina jujubae 94 and the second Spina jujubae 96, to keep away Exempt from injury tissue.

First sidepiece 86 and the second sidepiece 88 define the first plane, and the preferred embodiment is different from 3rd embodiment It is that, after closure nail 106 is bent molding, the projection on the first plane of the bending part 108 of the first sidepiece 86 is away from second The projection on the first plane of the bending part 110 of sidepiece 88.

Further, the projection on the first plane of the bending part 108 of the first sidepiece 86 and the bending of the second sidepiece 88 The projection on the first plane of part 110 is respectively positioned between the first Spina jujubae 94 and the second Spina jujubae 96.

The 3rd Spina jujubae 112 is additionally provided with bottom 90, between the 3rd Spina jujubae 112 and the first sidepiece 86 and the second sidepiece 88 in Heart line 102 coincides.Certainly, the 3rd Spina jujubae 112 can be configured as and the centrage between the first sidepiece 86 and the second sidepiece 88 102 is misaligned.Further, the length of the length of the first Spina jujubae 94 and the second Spina jujubae 96 is all higher than the length of the 3rd Spina jujubae 112.

As shown in Figure 13 a and Figure 13 b, the 5th preferred embodiment of the closure nail 16 that this utility model is provided, the embodiment Compared with the 4th preferred embodiment, in the preferred embodiment, the first sidepiece 86 and the second sidepiece 88 define the first plane, when closing After dowel 114 is bent molding, the projection on the first plane of the bending part 116 of the first sidepiece 86 is also away from the second sidepiece The projection on the first plane of 88 bending part 118.

The first Spina jujubae 120 and the second Spina jujubae 122 with the 120 symmetrical setting of the first Spina jujubae are again provided with bottom 90.Enter One step, the 3rd Spina jujubae 124 is additionally provided with bottom 90, between the 3rd Spina jujubae 124 and the first sidepiece 86 and the second sidepiece 88 in Heart line 102 coincides.Certainly, the 3rd Spina jujubae 124 can be configured as and the centrage between the first sidepiece 86 and the second sidepiece 88 102 is misaligned.In this preferred embodiment, the length of the 3rd Spina jujubae 124 is more than the length and the second Spina jujubae 122 of the first Spina jujubae 120 Length.

In addition, a vertical line 126 is defined by the end of the 3rd Spina jujubae 124 and perpendicular to the 3rd Spina jujubae 124, work as closure After nail 114 is bent molding, the bending part 118 of the bending part 116 of the first sidepiece 86 and the second sidepiece 88 is and vertical line 126 intersect.So so that boundling pocket is more firm, further prevent.

Further, sharp portion 128 is equipped with the first sidepiece 86 and the second sidepiece 88.Preferably, on the first sidepiece 86 Sharp portion 128 and the second sidepiece 88 on sharp portion 128 be symmetrically set.Specifically, sharp portion 128 is towards near bottom 90 Direction extend.

It should be understood that, although this specification is been described by according to embodiment, but not each embodiment only includes one Individual independent technical scheme, this narrating mode of description is only that those skilled in the art will should say for clarity Bright book as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, forming those skilled in the art can With the other embodiment for understanding.

Those listed above is a series of to describe the tool for being only for feasibility embodiment of the present utility model in detail Body illustrates that they are simultaneously not used to limit protection domain of the present utility model, all to be made without departing from this utility model skill spirit Equivalent implementations or change are should be included within protection domain of the present utility model.

Claims (17)

1. the pressing plate of a kind of tissue closing device, including base and base engagement, and ejector pin block, it is characterised in that

The pressing plate be set to can relatively described base rotation, which includes an open position and a make position, when the pressing plate Positioned at make position when, the pressing plate and the base engagement form first accommodation space that can house part tubular tissue；

The ejector pin block includes that an initial position, a nail make position and retract position, and the initial position is located at the nail The near-end of make position and first accommodation space, it is described retract position positioned at the initial position and nail make position it Between；

The tissue closing device also includes putting nail portion, and the nail portion of putting is arranged at the base distal end and for placing cutting knife, When the ejector pin block from nail make position to retract position and move when, the ejector pin block and the cutting knife coordinate with drive cutting knife from The base distal end moves proximally to cut off tissue.

2. tissue closing device according to claim 1, it is characterised in that the nail portion of putting is additionally operable to placement at least one Closure nail, the ejector pin block and the nail portion of putting are set to ordinatedly order about the structure positioned at the closure nail molding for putting nail portion, When the ejector pin block drives the closure nail molding by proximate, the cutting knife is maintained static relative to the nail portion of putting, So as to not cut tissue.

3. tissue closing device according to claim 2, it is characterised in that the closure nail is set to two, and described Two closure nails are respectively positioned at the both sides of the cutting knife.

4. tissue closing device according to claim 2, it is characterised in that the nail portion of putting is provided with step, to limit The proximally direction movement of closure nail is stated, when the ejector pin block is connected with the cutting knife and drives the cutting knife to move proximally to, The closure nail is remained stationary as relative to the nail portion of putting.

5. tissue closing device according to claim 2, it is characterised in that the ejector pin block has for the closure nail The nail forming tank of molding and the side wall for compression organization, the side wall are higher than the nail forming tank.

6. tissue closing device according to claim 5, it is characterised in that the ejector pin block is located between the side wall and sets There is mesospore, the mesospore is less than the side wall.

7. tissue closing device according to claim 6, it is characterised in that the mesospore has the recessed empty portion of arc.

8. tissue closing device according to claim 1, it is characterised in that the cutting knife is included for cutting off cutting for tissue Cut portion, and the opposite sides and the first connecting portion and second that is connected with the cutting part positioned at the cutting part is connected respectively Portion, the first connecting portion and second connecting portion are selectively disengaged or are connected with the ejector pin block.

9. tissue closing device according to claim 8, it is characterised in that the cutting part is provided with for bottom is organized The halberd sword of cut-out, the halberd cutlery have point.

10. tissue closing device according to claim 9, it is characterised in that be additionally provided with the cutting part for sliding The inclined edge of cut-out side wall tissue, the inclined edge is along curve extension, and the inclined edge is in smoothing junction with the halberd sword, and the inclined edge sets Two are set to, and described two inclined edges are distributed in the both sides of the halberd sword.

11. tissue closing devices according to claim 10, it is characterised in that the first connecting portion and second connecting portion On be equipped with mating part, the ejector pin block has the junction surface for selectively connecting with the mating part or disengaging.

12. tissue closing devices according to claim 11, it is characterised in that the mating part be buckle, the engagement Portion is projection.

13. tissue closing devices according to claim 1, it is characterised in that the cutting knife has mating part, the ejector pin Block has the junction surface that selectively connects with the mating part or disengages, when the ejector pin block is from following closely make position to retracting position When putting mobile, the mating part connect with the junction surface so that the ejector pin block drive cutting knife from the base distal end proximally It is mobile to cut off tissue, when the ejector pin block is from initial position to nail make position movement, the mating part and the engagement Portion disengages.

14. tissue closing devices according to claim 13, it is characterised in that the mating part be buckle, the engagement Portion is projection.

15. a kind of tissue closure components, it is characterised in that the tissue closure component includes any one of claim 1 to 14 Described tissue closing device, and the cutting knife of the tissue closing device can be assembled to, in closing course, when the ejector pin When block is in initial position and is moved by proximate, the cutting knife is disengaged with the ejector pin block, when the ejector pin block is in When following closely make position and being moved proximally to by distal end, the ejector pin block coordinates to drive cutting knife remote from the base with the cutting knife End moves proximally to cut off tissue.

16. tissue closure components according to claim 15, it is characterised in that the tissue closure component also includes filling The closure nail of the tissue closing device is assigned to, in closing course, when the ejector pin block is located at initial position, the closure The free end of nail is relative with the ejector pin block, and when the ejector pin block is located at nail make position, the free end of the closure nail is received The ejector pin block acts on bending forming.

A kind of 17. medical apparatus and instruments, including instrument body, the percussion handle of the connection instrument body, it is characterised in that the doctor Treatment apparatus also includes the tissue closing device as described in any one in claim 1 to 14, and the tissue closing device is removable The dress ground connection instrument body.