CN208910357U - Surgical operating instrument - Google Patents

Abstract

The utility model relates to a kind of surgical operating instruments, it includes the body of a gun and the nail bin groupware that is arranged on the body of a gun, the body of a gun includes closed rod, trigger shaft, nail anvil bracket and nail anvil, nail anvil bracket includes the preceding jaw arm in cantilever position, before nail anvil is fixed on jaw arm, nail bin groupware and trigger shaft, closed rod connection, suturing nail is installed in nail bin groupware, there is nail bin groupware tissue to contact platform, nail anvil contacts platform towards tissue, nail anvil has the suturing nail contact zone contacted with suturing nail, the first locating piece and the second locating piece are provided between preceding jaw arm and tissue contact platform；When surgical operating instrument is closed, before the first locating piece, the second locating piece are clamped in respectively between the tissue of jaw arm and nail bin groupware contact platform；In in the short transverse of nail anvil, the first locating piece, the second locating piece are located at the two sides of suturing nail contact zone；Nail anvil, suturing nail contact zone, the first locating piece, the second locating piece, which enclose, to be set to form a parallelogram lever.

Description

Surgical operating instrument

Technical field

The utility model relates to a kind of surgical operating instruments.

Background technique

In general surgery treatment, surgical instruments is the operation tool in medical operating, and linear stapler is surgery device A kind of operation tool for being commonly used for completing the identical function of cutting of tissue of tool, medically uses, substitutes seam by hand The equipment of conjunction, main operational principle are to carry out detachment to tissue using titanium nail (suturing nail) or coincide, and are similar to stapler.It is existing The linear stapler having includes nail anvil bracket, the nail anvil being fixed on nail anvil bracket and the nail bin groupware being oppositely arranged with nail anvil, Nail bin groupware is driven by closed rod with mobile to make linear stapler be closed towards the direction of nail anvil, but existing linear kiss The generally existing following problem of clutch, since the nail anvil holder part of fixed nail anvil is cantilever design, so, when nail bin groupware with When clamping the tissue for being sewn and cutting between nail anvil, cantilever design of the nail anvil as where nail bin groupware will be deflected outward, and In this case, if nail bin groupware fires, it is formed by the problem of suturing nail is at nail concentric reducer and dovetail, to make It is bad at sewing effect.

Utility model content

The purpose of this utility model is to provide a kind of surgical operating instrument, can to avoid be formed by suturing nail at The problem of following closely concentric reducer and dovetail improves sewing effect.

In order to achieve the above objectives, the utility model provides the following technical solutions: a kind of surgical operating instrument, suturing and Tissue is cut, the surgical operating instrument includes the body of a gun and the nail bin groupware that is arranged on the body of a gun, and the body of a gun includes closing Bar, trigger shaft, nail anvil bracket and nail anvil are closed, the nail anvil bracket includes the preceding jaw arm in cantilever position, and the nail anvil is fixed On the preceding jaw arm, the nail bin groupware is connect with trigger shaft, closed rod, is equipped with suturing nail in the nail bin groupware, The nail bin groupware have tissue contact platform, the nail anvil towards the tissue contact platform, the nail anvil with it is described The suturing nail contact zone of suturing nail contact is provided with the first locating piece and second between the preceding jaw arm and tissue contact platform Locating piece；When the surgical operating instrument is closed, first locating piece, the second locating piece are clamped in the preceding jaw arm respectively Between the tissue contact platform of nail bin groupware；In in the short transverse of the nail anvil, first locating piece, the second locating piece Positioned at the two sides of the suturing nail contact zone；The nail anvil, suturing nail contact zone, the first locating piece, the second locating piece enclose and set shape At a parallelogram lever.

Further, the nail anvil, suturing nail contact zone, the first locating piece, the second locating piece enclose set the frame to be formed as Rectangle.

Further, the thickness of first locating piece is equal with the thickness of the second locating piece.

Further, first locating piece is set on the nail bin groupware, alternatively, first locating piece setting exists Upside on the nail anvil or preceding jaw arm and positioned at the suturing nail contact zone；Second locating piece is arranged in the nail anvil Or on nail anvil bracket.

Further, the nail anvil bracket further includes rear jaw arm and lower jaw arm, the preceding jaw arm, rear jaw arm and Lower jaw upper-arm circumference sets to form the U-shaped jaw chamber, offers in the lower jaw arm and extends along the nail direction that goes out of the suturing nail Sliding slot, second locating piece setting slides in the sliding slot and in the sliding slot.

Further, the first spring, cunning of first spring along second locating piece are additionally provided in the sliding slot Move direction compression or expansion；When the nail bin groupware is applied to the revocation of the thrust on second locating piece, first spring Push second locating piece far from the nail anvil.

Further, second locating piece include be clamped in it is described tissue contact platform and nail anvil between clamping part and The adjutage extended rearwardly to form from the clamping part, the end of the adjutage are connect with the first spring.

Further, it is provided in the sliding slot and goes out the anti-of nail direction towards suturing nail to limit second locating piece To mobile limited block.

Further, open up fluted on the lower jaw arm, limited block setting is in the groove and can be in institute It states in groove and moves, the second spring for driving the limited block to move up in the groove is provided in the groove.

Further, be provided on the nail bin groupware can the relatively described nail bin groupware along the suturing nail go out follow closely direction move The upper tissue pilot pin that be inserted into the nail anvil is moved and can be gone out, is provided on the nail anvil bracket and is inserted into the nail bin Undertissue's pilot pin in component, on the longitudinally of nail anvil, the upper tissue pilot pin, undertissue's pilot pin are located at described The two sides of suturing nail contact zone.

The utility model has the beneficial effects that: the surgical operating instrument of the utility model passes through in preceding jaw arm and tissue The first locating piece and the second locating piece are provided between contact platform, and in the short transverse of nail anvil, the first locating piece, second Locating piece is located at the two sides of suturing nail contact zone, makes it when surgical operating instrument closure, nail anvil, suturing nail contact zone, first Locating piece, the second locating piece, which enclose, to be set to form a parallelogram lever, to can avoid being formed by suturing nail into nail greatly Microcephaly and the problem of dovetail, helps to improve sewing effect.

The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail It describes in detail bright as after.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of surgical operating instrument shown in an embodiment of the present invention；

Fig. 2 is the structural schematic diagram of nail bin groupware shown in Fig. 1；

Fig. 3 is the exploded view of nail bin groupware shown in Fig. 2；

Fig. 4 is the structural schematic diagram of surgical operating instrument shown in FIG. 1 in closed state；

Fig. 5 is cross-sectional view of the surgical operating instrument shown in Fig. 4 under not closed state diagram；

Fig. 6 is the magnified partial view in Fig. 5；

Fig. 7 is surgical operating instrument shown in FIG. 1 in the enlarged drawing of the part-structure in overlook direction；

Fig. 8 is part-structure in Fig. 7 in the cross-sectional view on another visual angle (under non-cock)；

Fig. 9 is part-structure in Fig. 7 in the cross-sectional view on another visual angle (under cock)；

Figure 10 is the enlarged drawing of circle A in Fig. 8；

Figure 11 is the enlarged drawing of circle B in Fig. 9.

Specific embodiment

With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.

Referring to Figure 1, surgical operating instrument shown in an embodiment of the present invention is that electric drive stapler (is called in the following text identical Device), it is used to suture and cut tissue.The stapler includes the body of a gun 10 and the nail bin groupware that is mounted on the body of a gun 10 20.It refers to Fig. 2 and Fig. 3 and combines Fig. 6, Fig. 7, the nail bin groupware 20 includes warehouse 11, is mounted in the warehouse 11 Suturing nail (not shown) and upper tissue pilot pin 12, to suturing nail is released out of warehouse 11 nail pushing plate 13, can opposite institute The shield nail-plate 2 stating the cutting assembly 14 of the movement of warehouse 11 and being mounted on the warehouse 11.In the present embodiment, the cutting Component 14 includes knife rest 141 and the blade 142 that is fixed on knife rest 141, be provided in the knife rest 41 installation cavity 143 and to The holding tank 140 of fixed blade 142, holding tank 140, which is open, goes out nail direction towards suturing nail.The installation cavity 143 has shape At the first wall 144 of the installation cavity 143, the second wall 145, third wall 146, the 4th wall 147 and roof 148, first wall 144 and second wall 145 in suturing nail go out nail direction on be located at the installation cavity 143 two sides, the third wall 146 and the 4th Wall 147 is in the two sides for being located at the installation cavity 143 on the thickness direction of nail bin groupware 20, the installation side of Yu Suoshu nail bin groupware 20 Upwards, the roof 148 is located at the top of installation cavity 143.Escape groove (not labeled) is offered on second wall 145.It is described Warehouse 11 includes suturing nail mounting portion 111, from the suturing nail mounting portion 111, (direction is to go out to follow closely direction with suturing nail backward Opposite direction) extend to form and two extension backplates 112 being oppositely arranged and from the top of the suturing nail mounting portion 111 to The upper pilot pin mounting portion 113 extended to form afterwards, the upper pilot pin mounting portion 113 are located on described two extension backplates 112 Side, and two extension backplates 112 are connected and perpendicular to pilot pin mounting portion 113.The suturing nail mounting portion 111 has and is stitched It closes and the tissue of the tissue contact (not shown) of cutting contacts platform (not shown) and contacts what platform was disposed opposite to each other with the tissue Bottom surface (not shown) offers several suture nail cavities (not shown), several suture nail cavities in the suturing nail mounting portion 111 Through tissue contact platform and bottom surface, it is intracavitary that several suturing nails are mounted on the suturing nail, each intracavitary installation one of suturing nail Suturing nail, it is intracavitary that each suturing nail by two bending bars is held in suturing nail, and suturing nail goes out when following closely, nail pushing plate 13 push its from The intracavitary removal of suturing nail.The longitudinally extension along the suturing nail mounting portion 111 is offered on the suturing nail mounting portion 111 First cutter slit (not shown) of (longitudinally is vertical with the nail direction out of suturing nail), first cutter slit run through tissue Platform and bottom surface are contacted, when cutting tissue, the blade 142 enters in the first cutter slit and stretches out the first cutter slit with complete The cutting organized in pairs.It is formed with accommodating chamber (not labeled) between two extension backplates 112, is formed on the extension backplate 112 There is round salient point 114.The first conduit for going out nail direction and extending along suturing nail is offered in the upper pilot pin mounting portion 113 115 and second conduit 116, first conduit 115 be located at the top of the second conduit 116, the upper tissue pilot pin 12 is arranged In first conduit 115, and can be in first conduit 115 along the opposite direction shifting for going out nail direction and going out nail of suturing nail It is dynamic.The nail pushing plate 13 includes that several corresponding suture nail cavities are arranged and to the pushing slice of nail by suturing nail from the intracavitary release of suturing nail 131, to the fixed part 132 of several pushing slice of nail 131 of fixation and the triggering application member being fixed on the fixed part 132 133.It is intracavitary to remove to realize the suturing nail from suturing nail is intracavitary that the pushing slice of nail 131 is inserted into the suturing nail It follows closely out.The pushing slice of nail 131 prolongs forward (direction is that suturing nail goes out to follow closely the reversed of direction) from the front end of the fixed part 132 It stretches to be formed.The upper end of the fixed part 132 is inserted into the second conduit 116, since fixed part 132 is inserted into second conduit 116, Therefore the moving direction of the nail pushing plate 13 of limitation, the second cutter slit 134 is provided on the nail pushing plate 13, second cutter slit 134 The corresponding first cutter slit setting, when cutting tissue, the blade 142 first pass through enter back into after the second cutter slit 134 to First cutter slit.It is as follows that the suturing nail goes out nail process: the blade 142 enters back into after first passing through the second cutter slit 134 to Then one cutter slit pushes fixed part 132 to move forward until knife rest 41 supports fixed part 132, until piece 131 is pushed to enter Suturing nail is released to suturing nail is intracavitary.In the present embodiment, the nail pushing plate 13 further includes the following table from the fixed part 132 The fixture block 135 that projection is formed downwards, the triggering application member 133 is embedded in the fixture block 135, for the ease of installing the touching Application member 133 is sent out, the bottom of the fixture block 135 is provided with (please join to the embedded groove 136 for being embedded in the triggering application member 133 See Fig. 6).

Whether the nail bin groupware 20 on the body of a gun 10 will be installed on the body of a gun 10 or will be installed in for the ease of observation It was fired, and in the present embodiment, the visual observation window to show 13 position of nail pushing plate was offered on the warehouse 11 Mouth 118；When the nail bin groupware 20 is not fired, the part nail pushing plate 13 is exposed by the visual observation window 118, when The nail pushing plate 13 releases the suturing nail to complete to fire from suture is intracavitary, and the nail pushing plate 13 is far from the visual observation Window 118, and then nail pushing plate 13 is not exposed in the visual observation window 118.The shifting of the nail pushing plate 13 for ease of description It is dynamic, after the position of nail pushing plate 13 can be defined as to the first position before nail bin groupware 20 does not fire and the percussion of nail bin groupware 20 The second position, when the nail pushing plate 13 is located at the first position, nail pushing plate 13 is exposed to the visual observation window 118 Interior, when the nail pushing plate 13 is located at the second position, the visual observation window 118 misplaces with nail pushing plate 13, and nail pushing plate 13 is not It is exposed in the visual observation window 118.The visual observation window 118 is located at the side of second conduit 116 and will Expose the part of second conduit 116.In the present embodiment, in order to intuitively observe whether the nail pushing plate 13 is exposed to vision In watch window 118, the color of the nail pushing plate 13 is deposited with the color of the second conduit 116 and the color of visual observation window 118 In color difference.The nail pushing plate 13 and cutting assembly 14 are arranged in the accommodating chamber, after suturing nail goes out and follows closely, nail pushing plate 13 due to Frictional force between suture nail cavity makes the nail pushing plate 13 be maintained at the second position.And in order to ensure the nail pushing plate 13 can The nail pushing plate 13 is maintained at the second position, clamping structure can be arranged between the nail pushing plate 13 and extension backplate 112 to limit It is mobile to make the nail pushing plate 13.Specifically, in the present embodiment, offering backplate card slot 1121, institute on the extension backplate 112 State the positioning wedged block 137 being provided on fixed part 132 with the backplate card slot 1121 cooperation；The nail pushing plate 13 by suturing nail from The intracavitary release of suturing nail, the backplate card slot 1121 cooperate with positioning wedged block 137 to limit the opposite warehouse 11 of the fixed part 132 It is mobile.The backplate card slot 1121 and positioning wedged block 137 form clamping structure, and in other embodiments, which may be used also Think other structures, or card slot is set on fixed part 132, the fixture block of setting and card slot cooperation on extending backplate 112. In the present embodiment, each extension backplate 112 includes the first plate extended rearwardly to form from the suturing nail mounting portion 111 Body portion 1122 and the second board body part 1123 extended rearwardly to form from first board body part 1122, the backplate card slot 1121 open up In the first board body part 1122.It opens up to be formed in second board body part 1123 and goes out what nail direction extended along the suturing nail Guide groove 1124, the center line of the backplate card slot 1121,1124 center line overlap of guide groove, the guide groove 1124, backplate Card slot 1121 is connected to, and the positioning wedged block 137 can be moved in backplate card slot 1121 out of described guide groove 1124.It is led by this To the cooperation of slot 1124 and positioning wedged block 137 to guarantee that nail pushing plate 13 is steadily mobile relative to warehouse 11.In the present embodiment, described Guide groove 1124, backplate card slot 1121 are located therein on one piece of extension backplate 112, in other embodiments, can be at two pieces Extend and is respectively provided with guide groove 1124, backplate card slot 1121 on backplate 112.In the present embodiment, 41 projection of knife rest is formed with The guide block 149 cooperated with the guiding card slot 1124, the cooperation of the guide block 149 and guiding card slot 1124 can make the knife Frame 41 is mobile steady.

In the present embodiment, the several first anti-skidding costals 119 are set on the warehouse 11 in order to grab the warehouse 1.It should Nail bin groupware 20 before firing, needs to protect nail-plate 2 and removes from nail bin groupware 20, the shield nail-plate 2 includes to be clamped in Holding section 21 on the warehouse 11 and to drive the holding section 21 to clamp the press section 22 of the warehouse 11, the pressing The several second anti-skidding costals 23 are provided in portion 22.

Referring to Figure 1 and fig. 4 to fig. 6, the body of a gun 10 includes handle portion 3 and work head 4, in the present embodiment, described Handle portion 3 sterilizes electric handle to be reusable, is internally provided with fast connector and signal transmission port, the handle It is additionally provided in portion 3 to provide the replaceable battery group of electric power, which is prior art construction, therefore herein not in detail Description.The movement such as closure, opening and percussion of work head 4 is driven by the handle portion 3.The work head 4 includes shell 41, passes Dynamic component 45, closed rod 42, trigger shaft 43, nail anvil bracket 44, nail anvil 46 and connector 47.The transmission component 45 is arranged in shell It is docked in body 41 and with handle portion 3, the closed rod 42, trigger shaft 43 are stretched out from the shell 41, and the closed rod 42 is hit Hair bar 43 connect with transmission component 45 and is driven by the transmission component 45, and the closed rod 42 and trigger shaft 43 stretch to nail anvil Nail anvil bracket 44 is fixed on shell 41 by bracket 44, the connector 47, and the connector 47 is the two panels piece being oppositely arranged Shape body, the trigger shaft 43 and closed rod 42 are arranged between two panels plates.The nail anvil 46 is arranged on nail anvil bracket 44. Before the nail anvil bracket 44 includes the preceding jaw arm 441 that is oppositely arranged and rear jaw arm 442 and connects jaw arm 441 and after The lower jaw arm 443 of jaw arm 442, the preceding jaw arm are in cantilever position, and one end is fixed on lower jaw arm 443, and the other end is empty It sets.Preceding jaw arm 441, rear jaw arm 442 and the lower jaw arm 443, which enclose to set, is formed with U-shaped jaw chamber 445, which closes The rear for closing bar 42 from rear jaw arm 442 stretches in U-shaped jaw chamber 445.The nail bin groupware 20 is arranged in the U-shaped jaw In chamber 445.

Incorporated by reference to Fig. 3, Fig. 7 to Figure 11, trigger shaft 43 is inserted into installation cavity 143, for the ease of trigger shaft 43 and installation Chamber 143 docks, and the side of 143 Opposite top 148 of installation cavity is provided with interface (not shown), and trigger shaft 43 is inserted from described Interface is inserted into installation cavity 143.The trigger shaft 43 has the inserted terminal 431 that is inserted in the installation cavity 143 and from institute The lengthwise portion 432 that inserted terminal 431 extends rearwardly to form and passes through the escape groove 149 is stated, which stretches to shell 41 It is interior to be connect with transmission component 45.Convex block 433 is provided on the inserted terminal 431.Second wall 145, third wall 146, Missing portion (not labeled) is formed on four walls 147, second wall 145 is described convex in limiting on the opposite direction for going out nail of suturing nail Block 433 is detached from installation cavity 143, and the third wall 146, the 4th wall 147 are described convex in limiting in the width direction of nail bin groupware 20 Block 433 is detached from installation cavity 143.The front end face of the inserted terminal 431 is arc, and the front end face pushes the first wall 144, to make Cutting assembly 14 goes out the movement of nail direction towards suturing nail.The roof 148 and the second wall 144, which enclose to set, is formed with hook slot 1431, It is formed with the fastening block part 434 being inserted in the hook slot 1431 on the inserted terminal 431, passes through hook slot 1431 and fastening block part 434 cooperation is to limit shaking amplitude (such as Figure 10 and Figure 11) of the cutting assembly 14 on trigger shaft 43.Due to the trigger shaft 43 Be inserted in the installation cavity 143 of cutting assembly 14, and by trigger shaft 43 be arranged convex block 43, thus make the trigger shaft 43 with It is formed between cutting assembly 14 and fixes connection, so, after trigger shaft 43 drives the percussion of cutting assembly 14 and completes cutting tissue, When trigger shaft 43 is given up the throne, cutting assembly 14 is pulled back the position to before not firing.Incorporated by reference to Fig. 8 and Fig. 9, for ease of description The change in location of pushing slice of nail 131, defines first state position 100, the second state position 100 ' in figs. 8 and 9, and Fig. 8 is nail For storehouse component 20 under non-cock, Fig. 9 is that nail bin groupware 20 is under cock, during percussion, trigger shaft 43 Front end face pushes the first wall 144 in installation cavity, causes cutting assembly 14 to move and push along the direction of nail out of suturing nail and pushes away The fixed part 132 of nail-plate 13 and make nail pushing plate 13 simultaneously towards suturing nail to go out nail direction mobile, when suturing nail goes out and follows closely, due to every Pressure suffered by a suturing nail has differences, so, opposite suturing nail will generate a thrust to pushing slice of nail 131, ejector pin After piece 131 is by the thrust, which is transferred to cutting assembly 14, since the front end face of trigger shaft 43 is arc, so, cutting Component 14 can move on front end face along its arcuate directions under the action of thrust, when cutting assembly 14 is with respect to trigger shaft 43 After movement, cutting assembly 14 will drive nail pushing plate 13 mobile, which is changed to the second shape from first state position 100 State position 100 ', pushing slice of nail 131 do the swing of a angle.0 and Figure 11 referring to Figure 1, when cutting assembly 14 is moved with respect to trigger shaft 43 When dynamic, position of the fastening block part 434 in hook slot 1431 will change therewith.In the present embodiment, by by the front end of trigger shaft 43 Camber is arranged in face, so that pushing slice of nail 131 can be adjusted the angle in percussion, ensure that the consistency of pushing slice of nail and nail anvil, moreover, It may also adapt to different tissue thickness, the adjusting of angle be completed according to different tissue thickness, in addition, such setting can be real Now to the compensation of 44 top and the bottom power of nail anvil bracket.Really, in other embodiments, which can also be taper, still, Opposing arcuate, taper is also easy to produce rigid shock, and there are pointed noses for taper, easily causes cutting assembly 14 impaired.To sum up, by this Surgical operating instrument can be improved suturing nail at nail effect, and by the way that camber or taper is arranged in front end face after, nail anvil branch Frame can not do pre-bending design, keep the design of the surgical operating instrument and production simpler.

The circular recess (not labeled) cooperated with the round salient point 114 extended on backplate is provided in the closed rod 42.Institute It states before nail anvil 46 is fixed on jaw arm 441, towards the warehouse 11, nail anvil 46 contacts flat the nail anvil 46 with the tissue of warehouse 11 Platform is oppositely arranged, which, which has, contacts with the suturing nail in the warehouse 11 to apply pressure so that contact stud to contact stud It is in the suturing nail contact zone (not labeled) of B font after bending, is provided with tissue location hole 444 on the preceding jaw arm 441, when When the stapler is closed, the upper tissue pilot pin 12 be inserted into the upper tissue location hole 444 it is interior be sewn with fixation and The tissue of cutting is provided with driving lever 421 in the closed rod 42 in the present embodiment, which supports positions in upper tissue The rear side of needle 12, when closed rod 42 drives the nail bin groupware 20 mobile towards the direction of nail anvil 46, the driving lever 421 drives institute State tissue pilot pin 12 organizes 444 direction of location hole mobile until being inserted into group on this upward in first conduit 115 It knits in location hole 44, to will be sewn and cut tissue positioning by upper tissue pilot pin 12 in order to subsequent suture and cut It cuts.It is provided with undertissue's pilot pin 47 on the nail anvil bracket 44, which is inserted into nail bin groupware 20. Before undertissue's pilot pin 47 is fixed on jaw arm 441, on the longitudinally of nail anvil, the upper tissue pilot pin 12, Undertissue's pilot pin 47 is located at the two sides of the suturing nail contact zone.

It is provided with electric control part in the body of a gun 10, the electric control part and fast connector, signal transmission port and can be more Battery pack connection is changed, which controls the movement such as closure, opening and percussion of work head 4.The electric control part controls work First 4 closure, opening and trigger method is the prior art, therefore is not described in detail herein, in the present embodiment, described Electric control part includes sensing device 5, and the sensing device 5 forms identification switch with triggering application member 133.In a particular application, The sensing device 5, triggering application member 133 can be common product in existing field, as sensing device 5 is established by cable for reflection type optical It closes, the triggering application member 133 is the reflecting element to trigger the reflection-type optoelectronic switch, alternatively, the sensing device is Hall switch, the triggering application member are the magnet to trigger the Hall switch.In the present embodiment, the sensing device 5 It is arranged on lower jaw arm 443, in order to make the more compact structure of the stapler, the sensing device 5 is embedded in lower jaw arm 443 It is interior.The sliding slot 446 for going out nail direction and extending along suturing nail is offered in lower jaw arm 443, when the nail bin groupware 20 is mounted on After in work head 4, the fixture block 135 is located in the sliding slot 446, and the fixture block 135 can be in the sliding slot 446 along suturing nail Go out nail direction and direction is mobile.

The first locating piece 61 and the second locating piece 62 are provided between the preceding jaw arm 441 and tissue contact platform；When Surgical operating instrument closure, first locating piece 61, the second locating piece 62 be clamped in respectively the preceding jaw arm 441 with Between the tissue contact platform of warehouse 11；In in the short transverse of the nail anvil 46, first locating piece 61, the second locating piece 62 are located at the two sides of the suturing nail contact zone；The nail anvil 46, suturing nail contact zone, the first locating piece 61, the second locating piece 62 enclose and set to form a parallelogram lever.In the present embodiment, in order to make suturing nail be in standard B font, the nail anvil 46, Suturing nail contact zone, the first locating piece 61, the second locating piece 62, which enclose, sets the frame to be formed as rectangle.In the present embodiment, first Locating piece 61, the second locating piece 62 are specially to be clamped between nail anvil 46 and tissue contact platform, first locating piece 61 Thickness is equal with the thickness of the second locating piece 62.In the present embodiment, first locating piece 61 is set to the nail bin groupware On 20, and it is located at the upside of the suturing nail contact zone.Projection is formed on first locating piece 61 specially self-organizing contact surface, Really, in other embodiments, which can be arranged on nail anvil 46 or preceding jaw arm 441, still, If being arranged first locating piece 61 on nail anvil 46 or preceding jaw arm 441, the group for being sewn and cutting is inserted into work head 4 Knit it is interior after, which may damage the tissue for being sewn and cutting.In the present embodiment, described second Locating piece 62 is arranged on the nail anvil bracket 44, certainly, in other embodiments, can be direct by second locating piece 62 It is arranged on nail anvil 46 or nail bin groupware 20, at that time, if being arranged the second locating piece 62 on nail anvil 46, may destroys The tissue for being sewn and cutting；If being arranged the second locating piece 62 on nail bin groupware 20, structure design is relative complex, to original There is nail bin groupware 20 to change larger, it is more time-consuming and increase cost.In the present embodiment, which is specifically arranged In lower jaw arm 443, the setting of the second locating piece 62 slides in the sliding slot 446 and in the sliding slot 446, described Second locating piece 62 pushes the direction of its super nail anvil 46 mobile by nail bin groupware 20.Go out to follow closely on direction in the suturing nail, Second locating piece 62 is located at the front side of fixture block 135.The first spring 63, first spring are additionally provided in the sliding slot 446 63 along second locating piece 62 glide direction compression or expansion；When the nail bin groupware 20 is applied to second locating piece Thrust revocation on 62, first spring 63 push second locating piece 62 far from the nail anvil 46；In the sliding slot 446 Be provided with to limit second locating piece 62 towards suturing nail go out nail direction reverse movement limited block 64.The limit Block 64 and the first spring 63 are oppositely arranged on the two sides of second locating piece 62.It is opened up on the lower jaw arm 443 fluted 447, the limited block 64 is arranged in the groove 447 and can move in the groove 447, setting in the groove 447 There is the second spring 65 for driving the limited block 64 to move up in the groove 447.The second spring 65 is used in fixture block 135 with limited block 64 when interfering, and after the power that fixture block 135 applies limited block 64 cancels, second spring 65 is by limited block 64 Again top is back to original position.Second locating piece 62 includes being clamped between the tissue contact platform and nail anvil 46 Clamping part 621 and the adjutage 622 extended rearwardly to form from the clamping part 621, the end of the adjutage 622 and the first bullet Spring 63 connects.

Incorporated by reference to Fig. 1 and fig. 4 to fig. 6, the part working method of above-mentioned stapler is as follows: when needing to pacify nail bin groupware 20 When in work head 4, it can check whether see nail pushing plate 13 first by visual observation window 118, if can't see, It may determine that the nail bin groupware 20 is not fired (for new staple cartridge component), the on the contrary then nail bin groupware 20 is fired (for old nail Storehouse component), then no longer mountable use.After nail bin groupware 20 is mounted in work head 4, is incuded by sensing device 5 and triggered Application member 133 further confirms that the nail bin groupware 20 is not fired if sensing device 5 senses triggering application member 133, this When, electric control part, which is carried out, can follow closely stapler closure and percussion prepares, if sensing device 5 is not sensed by triggering application member 133, electricity Control part is closed.After nail bin groupware 20 is mounted in work head 4, need first to remove the shield nail-plate 2 of nail bin groupware 20.Remove shield After nail-plate 2, the work head 4 of surgical operating instrument is inserted into the tissue for needing to be sewn and cut, so that this is sewn and cuts Tissue be located in U-shaped jaw chamber 445, then electric control part start closed routine, control battery power supply make transmission component 45 drive Dynamic closed rod 42, the direction (direction is identical as the nail direction out of suturing nail) of trigger shaft 43 towards nail anvil 46 are mobile, due to nail bin Component 20 is fixed on closed rod 42, on trigger shaft 43, at this point, closed rod 42, trigger shaft 43 will push the court together of nail bin groupware 20 The direction of nail anvil 46 is mobile until clamping tissue contact platform and nail anvil 46 by the tissue for being sewn and cutting；Work as nail bin groupware 20 can not be mobile towards the direction of nail anvil 46 again, and closed rod 42 stops movement, and electric control part starting percussion program controls trigger shaft 43 Still mobile towards the direction of nail anvil 46, trigger shaft 43 pushes the cutting assembly 14 in nail bin groupware 20 to continue towards the direction of nail anvil 46 Mobile, cutting assembly 14 pushes nail pushing plate 13 to move to towards the direction of nail anvil 46 in the process of moving, at this point, nail pushing plate 13 from First position is mobile towards the second position, and triggering application member 133 and sensing device 5 misplace, and sensing device 5 will be unable to sense triggering Application member 133, meanwhile, nail pushing plate 13 gradually disappears out of visual observation window 118, and the pushing slice of nail 131 of nail pushing plate 13 enters to Suturing nail is intracavitary, and gradually by the intracavitary suturing nail of suturing nail from suturing nail intracavitary release, suturing nail is mobile towards the direction of nail anvil 46, Suturing nail is squeezed into in the tissue for being sewn and cutting and then realizing suture, suture complete when, group that blade 142 will suture Knit cutting.Complete suture and cutting when, which is moved on the second position, the positioning wedged block 137 on nail pushing plate 13 into Enter into backplate card slot 1121 to realize and fix.After completing suture and cutting, electric control part starts reset routine, control excitation Bar is first pulled back, and excitation bar drives the cutting assembly 14 for fixing connection with it to drop back when pulling back, when excitation bar is retracted as closed rod After 42 same positions, excitation bar is pulled back backward simultaneously with closed rod 42, and closed rod 42 is withdrawn into after driving entire nail bin groupware 20 Home position.After nail bin groupware 20 is returned on origin-location, since positioning wedged block 137 and the fixing of backplate card slot 1121 are matched It closing, nail pushing plate 13 is maintained on the second position, so, sensing device 5 can not will still sense triggering application member 133, nail pushing plate 13 are still not exposed in the visual observation window 118.The nail bin groupware 20 and surgical operating instrument are realized by two ways Whether identification nail bin groupware 20 is fired: one, controlling and realize identification nail bin groupware 20 (can be referred to as electronics fool proof) in program: nail Storehouse component 20 and surgical operating instrument on nail pushing plate 13 by being arranged triggering application member 133, and on the body of a gun engaged therewith 10 It is provided with the sensing device 5 that identification switch is formed with the triggering application member 133, thus, triggering is incuded by sensing device 5 and is applied The position of part 133 identifies whether the nail bin groupware 20 has been fired；Two, the transformation for observing by the naked eye mechanical structure, which is realized, to be known Other nail bin groupware 20: the nail bin groupware 20 and surgical operating instrument on warehouse 11 by opening up to show 13 position of nail pushing plate Visual observation window 118, by judge the nail pushing plate 13 whether by visual observation window 118 exposure to judge the nail pushing plate 13 Whether fired.Since the nail bin groupware 20 and surgical operating instrument can be by controlling program, observing by the naked eye mechanical mechanism To constitute multiple form identification nail bin groupware 20, the precision of the identification of nail bin groupware 20 is improved, double insurance is realized, avoids medical treatment It is unexpected.

Herein it should be noted that: when mobile towards nail anvil 46 under promotion of the nail bin groupware 20 in closed rod 42, tissue Contact platform will contact with the second locating piece 62 and push second locating piece 62 mobile towards the direction of nail anvil 46, the first spring 63 are compressed；When the second locating piece 62 touches nail anvil 46, the first locating piece 61 is also contacted with nail anvil 46, so that nail bin The two o'clock power that component 20 applies nail anvil 46 is identical, ensure that and is sewn and cuts the identical (nail bin groupware of tissue clamping thickness 20 closures parallel with nail anvil 46), when to can avoid being formed by the problem of suturing nail is at nail concentric reducer and dovetail, raising Sewing effect.After completing suture and cutting, nail bin groupware 20 is retreated, at this point, the power on the second locating piece 62 cancels, second is fixed Position block 62 is resetted under the action of the first spring 63 to meet be closed and fire next time.When closed rod 42 pushes 20 court of nail bin groupware When the direction of nail anvil 46 is mobile, the driving lever 421 in closed rod 42 pushes upper tissue pilot pin 12 to move towards the direction of nail anvil 46 simultaneously It is dynamic until tissue pilot pin 12 is inserted into tissue location hole 444 on this, and the process that nail bin groupware 20 is moved towards nail anvil 46 In, undertissue's pilot pin 47 is passively inserted into warehouse 11, thus by the group for being sewn and cutting in U-shaped jaw chamber 445 It is woven on upper and lower position and positions, in order to subsequent suture and cutting.Pass through tissue pilot pin 12, undertissue's pilot pin 47 on this Use prevent from revealing so that it is guaranteed that the tissue for being sewn and cutting fits like a glove.

Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.

Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.

Claims (10)

1. a kind of surgical operating instrument, to suture and cut tissue, the surgical operating instrument includes the body of a gun and is arranged in institute The nail bin groupware on the body of a gun is stated, the body of a gun includes closed rod, trigger shaft, nail anvil bracket and nail anvil, and the nail anvil bracket includes In the preceding jaw arm of cantilever position, the nail anvil is fixed on the preceding jaw arm, the nail bin groupware and trigger shaft, closed rod It connects, suturing nail is installed in the nail bin groupware, there is the nail bin groupware tissue to contact platform, and the nail anvil is described in Tissue contact platform, the nail anvil have the suturing nail contact zone contacted with the suturing nail, which is characterized in that the preceding jaw The first locating piece and the second locating piece are provided between arm and tissue contact platform；It is described when surgical operating instrument closure First locating piece, the second locating piece are clamped in respectively between the preceding jaw arm and the tissue contact platform of nail bin groupware；In institute It states in the short transverse of nail anvil, first locating piece, the second locating piece are located at the two sides of the suturing nail contact zone；The nail Anvil, suturing nail contact zone, the first locating piece, the second locating piece, which enclose, to be set to form a parallelogram lever.

2. surgical operating instrument as described in claim 1, which is characterized in that the nail anvil, suturing nail contact zone, the first positioning Block, the second locating piece, which enclose, sets the frame to be formed as rectangle.

3. surgical operating instrument as described in claim 1, which is characterized in that the thickness of first locating piece and the second positioning The thickness of block is equal.

4. surgical operating instrument as described in claim 1, which is characterized in that first locating piece is set to the nail bin group On part, alternatively, first locating piece is arranged on the nail anvil or preceding jaw arm and is located at the upper of the suturing nail contact zone Side；Second locating piece is arranged on the nail anvil or nail anvil bracket.

5. surgical operating instrument as claimed in claim 4, which is characterized in that the nail anvil bracket further include rear jaw arm and under Jaw arm, the preceding jaw arm, rear jaw arm and lower jaw upper-arm circumference set to form U-shaped jaw chamber, offer in the lower jaw arm Along the sliding slot for going out nail direction and extending of the suturing nail, second locating piece is arranged in the sliding slot and in the sliding slot Sliding.

6. surgical operating instrument as claimed in claim 5, which is characterized in that be additionally provided with the first spring, institute in the sliding slot State glide direction compression or expansion of first spring along second locating piece；Determine when the nail bin groupware is applied to described second Thrust revocation on the block of position, first spring push second locating piece far from the nail anvil.

7. surgical operating instrument as claimed in claim 6, which is characterized in that second locating piece includes being clamped in described group The adjutage knitting the clamping part between contact platform and nail anvil and being extended rearwardly to form from the clamping part, the end of the adjutage Portion is connect with the first spring.

8. surgical operating instrument as claimed in claim 6, which is characterized in that be provided in the sliding slot to limit described Two locating pieces towards suturing nail go out nail direction reverse movement limited block.

9. surgical operating instrument as claimed in claim 8, which is characterized in that opened up on the lower jaw arm it is fluted, it is described Limited block is arranged in the groove and can move in the groove, and the driving limited block is provided in the groove in institute State the second spring moved up in groove.

10. surgical operating instrument as described in claim 1, which is characterized in that being provided on the nail bin groupware can be with respect to institute It states nail bin groupware and goes out to follow closely the upper tissue pilot pin that direction is moved and can be inserted into the nail anvil out along the suturing nail, it is described The undertissue's pilot pin being inserted into the nail bin groupware is provided on nail anvil bracket, it is described on the longitudinally of nail anvil Upper tissue pilot pin, undertissue's pilot pin are located at the two sides of the suturing nail contact zone.