CN203970458U - Anastomat and for the nail bin groupware of this anastomat - Google Patents

Abstract

This utility model has disclosed a kind of anastomat and the nail bin groupware for anastomat, and wherein, this nail bin groupware comprises: knife rest, comprise two sidewalls that are oppositely arranged, and at least one sidewall is provided with at least one positioning convex point; Pushing slice of nail, comprises the sidewall that nail-pushing part and two is oppositely arranged, and at least one side of the sidewall that described pushing slice of nail two is oppositely arranged is provided with at least one elastic component; Nail bin, comprises the sidewall that nail bin face and two is oppositely arranged, and at least one sidewall of the sidewall that two of described nail bin is oppositely arranged is provided with at least one locating hole coordinating with positioning convex point described at least one, and described locating hole can carry out spacing to described positioning convex point; At least one locating slot coordinating with elastic component described at least one, described locating slot can carry out spacing to described elastic component; Wherein, the relatively described locating hole of described locating slot arranges near described nail bin face.This utility model can, after anastomat has been pulled the trigger, be return cutting knife and fix, and to avoid cutting knife to accidentally injure operator, causes malpractice.

Description

Anastomat and for the nail bin groupware of this anastomat

Technical field

This utility model belongs to manufacture technology field of medical appliance, is specifically related to a kind of anastomat, and for the nail bin groupware of this anastomat.

Background technology

Anastomat is a kind of medical apparatus and instruments often using when the physiological tissues such as intestinal are carried out to surgical operation, it is the equipment that the alternative traditional-handwork that medically uses is sewed up, due to the development of modern science and technology and the improvement of manufacturing technology, the anastomat reliable in quality using clinically at present, easy to use, tightly, degree of tightness is suitable, especially its stitching is quick, easy and simple to handle and seldom have an advantage such as side effect and postoperative complication, sometimes the tumor operation that cannot excise of also making is over able to lesion resection, is subject to very much the domestic and international doctor's of Clinical Surgery favor and high praise; The difference of this instrument performance plays vital effect for whole surgical effect.

Summary of the invention

The purpose of this utility model is to provide a kind of anastomat, and for the nail bin groupware of this anastomat.

For realizing above-mentioned utility model object, the nail bin groupware for anastomat that this utility model one embodiment provides, it comprises: nail bin, pushing slice of nail, knife rest, and be arranged on the cutting knife on described knife rest, wherein,

Described knife rest comprises two sidewalls that are oppositely arranged, and at least one sidewall of the sidewall that described knife rest two is oppositely arranged is provided with at least one positioning convex point;

Described pushing slice of nail comprises the sidewall that nail-pushing part and two is oppositely arranged, and at least one side of the sidewall that described pushing slice of nail two is oppositely arranged is provided with at least one elastic component;

Described nail bin comprises the sidewall that nail bin face and two is oppositely arranged, at least one sidewall of the sidewall that two of described nail bin is oppositely arranged is provided with at least one locating hole coordinating with positioning convex point described at least one, and described locating hole can carry out spacing to described positioning convex point; With

At least one locating slot coordinating with elastic component described at least one, described locating slot can carry out spacing to described elastic component; Wherein, the relatively described locating hole of described locating slot arranges near described nail bin face.

As further improvement of the utility model, described locating hole and the separate setting of described locating slot.

As further improvement of the utility model, described knife rest comprises tool holder body, at least one sidewall of the two side of described tool holder body comprises the first side wall face, the second side wall surface, and connect the connecting portion of described the first side wall face and the second side wall surface, between described connecting portion and described tool holder body, be provided with gap, described positioning convex point is arranged on described connecting portion.

As further improvement of the utility model, described connecting portion goes out to follow closely in direction described nail bin groupware, and its width is less than described the first side wall face and described the second side wall surface width on equidirectional.

As further improvement of the utility model, at least one sidewall of the sidewall that described pushing slice of nail two is oppositely arranged is provided with at least one groove, described elastic component is extended by described sidewall, and a part for described elastic component is positioned at described groove, and another part is given prominence to described groove setting.

As further improvement of the utility model, at least one sidewall of the sidewall that described pushing slice of nail two is oppositely arranged comprises the first side wall face, the second side wall surface, and connect the boss of described the first side wall face and described the second side wall surface, the setting adjacent with described groove of described boss, described elastic component is extended by described boss.

As further improvement of the utility model, described elastic component comprises the bottom surface relative with described groove, and with the opposing end face in described bottom surface, wherein, described end face comprises the first end face, the second end face, and the near-end of described the second end face and described bottom surface is provided with a resistance surface;

Described the first end face is inclined-plane, and it connects described the second end face and described boss, and described the second end face is greater than the end face of described boss apart from the distance of described groove floor apart from the distance of described groove floor.

As further improvement of the utility model, described resistance surface is parallel with the proximal end face of described pushing slice of nail body.

As further improvement of the utility model, described nail bin groupware go out to follow closely in direction, described locating hole and described locating slot arrange alternately.

For realizing above-mentioned utility model object, this utility model one embodiment provides a kind of anastomat, and described anastomat comprises: housing, gripping handle, percussion assembly, and above-mentioned nail bin groupware, wherein, described anastomat comprises original state, percussion state, and percussion completion status

When described anastomat is under original state, described locating hole is spacing to positioning convex point, and described elastic component is resisted against the inner surface of nail bin sidewall;

When described anastomat is under percussion state, described positioning convex point departs from described locating hole, and is resisted against the inner surface of nail bin sidewall, and at least a portion of described elastic component protrudes from described locating slot;

When described anastomat is under percussion completion status, described elastic component is spacing by described locating slot, and described pushing slice of nail rests on the far-end of described anastomat, and described positioning convex point is driven by the return unit of described anastomat, return back in described locating hole, and spacing by described locating hole.

Compared with prior art, anastomat of the present utility model and nail bin groupware thereof, can, after anastomat has been pulled the trigger, return cutting knife and fix, and to avoid cutting knife to accidentally injure operator, causes malpractice.

Brief description of the drawings

Fig. 1 is the structural representation of anastomat in this utility model one embodiment;

Fig. 2 is the exploded view of nail bin groupware schematic diagram in this utility model one embodiment;

Fig. 3 is the blast structure chart of anastomat in this utility model one embodiment;

Fig. 4 A is the schematic perspective view of cutting knife member in this utility model one embodiment;

Fig. 4 B is the top view of cutting knife member in this utility model one embodiment;

Fig. 4 C is the cutaway view of Fig. 4 B along A-A direction;

Fig. 5 A is the schematic perspective view of pushing slice of nail in this utility model one embodiment;

Fig. 5 B is the structure for amplifying schematic diagram of a-quadrant in Fig. 5 A;

Fig. 5 C is the top view of pushing slice of nail in this utility model one embodiment;

Fig. 5 D is the cutaway view of Fig. 5 C along B-B direction;

Fig. 6 A is the schematic perspective view of nail bin in this utility model one embodiment;

Fig. 6 B is the top view of nail bin in this utility model one embodiment;

Fig. 6 C is the cutaway view of Fig. 6 B along A-A direction;

Fig. 6 D is the cutaway view of Fig. 6 B along B-B direction;

Fig. 7 A, Fig. 7 B are the nail bin groupware schematic diagram of anastomat under original state in this utility model one embodiment;

Fig. 8 A, Fig. 8 B are the nail bin groupware schematic diagram of anastomat under percussion state in this utility model one embodiment;

Fig. 9 A, Fig. 9 B are the nail bin groupware schematic diagram of anastomat under percussion completion status in this utility model one embodiment.

Detailed description of the invention

Below with reference to detailed description of the invention shown in the drawings, this utility model is described in detail.But these embodiments do not limit this utility model, the conversion in structure, method or function that those of ordinary skill in the art makes according to these embodiments is all included in protection domain of the present utility model.

For clearly expressing described position and direction in the application, using exercises on apparatus author as reference, be near-end near one end of operator, be far-end away from one end of operator.Meanwhile, in this application, the below of definition anastomat is the direction that gripping handle is extended by housing, relative with this below, is defined as the top of anastomat.

As shown in Figure 1, in this utility model one embodiment, anastomat 100 comprises housing 10, by the interior supporting construction of stretching out to far-end 20 of housing 10, is connected in the nail anvil seat 30 of described supporting construction 20 far-ends.This nail anvil seat 30 can be fixedly connected with described supporting construction 20, and its cross section is curved.

Wherein, the near-end of described housing 10 below forms gripping handle 40.

Described anastomat 100 also comprises nail bin groupware 32 and nail-anvil assembly 34.In the present embodiment, described nail bin groupware 32 and described nail-anvil assembly 34 are removably mounted on described nail anvil seat 30, and and the shape of described nail anvil seat 30 matches, the cross section that is described nail bin groupware 32 and described nail-anvil assembly 34 is also all set to arc, so, can be in less can working place Nei Dui physiological tissue coincideing.

As shown in Figure 2, nail bin groupware 32 has nail bin 322, this nail bin 322 comprises a nail bin face, is arranged with the staple containing groove of a line or multirow on described nail bin face with interlace mode, and described nail bin groupware also comprises the pushing slice of nail 324 and the cutting knife member that are arranged in nail bin 322.Described pushing slice of nail 324 can be released suturing nail in staple containing groove.Described cutting knife member comprises a knife rest 326, and a cutting knife 328 that is arranged on knife rest 326 far-ends.Described nail bin groupware go out to follow closely direction, consistent to the direction of far-end with described anastomat near-end.

On nail bin face and pushing slice of nail 324, be respectively equipped with and the slit of this cutting knife 328 adaptations, to support the percussion operation of cutting knife 328.In the present embodiment, this staple containing groove is positioned at the both sides of this slit, so, to organizing in cutting and stitching process, two broken ends of fractured bone of the tissue from disconnected can be sewed up simultaneously.

As shown in Figure 3, in this utility model one embodiment, the far-end of described nail bin groupware 32 is also connected with nail-anvil assembly 34, described nail-anvil assembly 34 comprises nail anvil and cutter anvil, when nail bin groupware 32 is installed to nail anvil seat 30, this nail anvil and cutter anvil can also be arranged on described nail anvil seat 30 ordinatedly.

In this utility model one embodiment, described supporting construction 20 comprises left side and the right side support 22,24 of pair of opposing, on left side and right side support 22,24, be respectively arranged with the installing hole 222,242 that can coordinate with pin-and-hole on nail anvil seat 30 and upper default projection 302 thereof, to realize being fixed to one another of nail anvil seat 30 and supporting construction 20.

The other end of this supporting construction 20 is connected to housing 10, and correspondingly, this housing 10 comprises left half housing 12 and right half housing 14, to be connected respectively left side and right side support 22,24.

Described anastomat 100 also comprises percussion assembly 50.Described percussion assembly 50 comprises the percussion handle 52 of being located at described anastomat below, is pulled the trigger the nail bin push rod 54 that handle 52 drives, and connects the driving member of described percussion handle 52 and described nail bin push rod 54.Described nail bin push rod 54 can, under the effect of percussion handle 52, drive described nail bin groupware 32 to move to described anastomat far-end from the near-end of anastomat, with near described nail-anvil assembly 34, finally can make described anastomat 100 closures.Now, if be placed with physiological tissue between described nail bin groupware 32 and described nail-anvil assembly 34, this nail bin push rod 54 can drive described nail bin groupware 32 near described nail-anvil assembly 34 with Jia Bigai physiological tissue.In this utility model one embodiment, described driving member comprises front rod 562, back link 564.The far-end of described front rod 562 is connected with nail bin push rod 54.The near-end of described front rod 562 is connected with the far-end pivot of back link 564, and the near-end of described back link 564 is connected in described supporting construction 20.

Described anastomat 100 also comprises an anti-overflow needle assembly, this anti-overflow needle assembly comprises an anti-overflow pin push rod 62, connects the transmission push rod 64 of described anti-overflow pin push rod 62, and be arranged in shown in the anti-overflow pin 61(ginseng Fig. 1 in described nail bin groupware 32), described anti-overflow pin 61 is connected with described transmission push rod 64 linkage ground.

In this utility model one embodiment, this anti-overflow pin push rod 62 is set to saddle type, and it is provided with symmetrical operating portion at near-end, and the outstanding described housing 10 of described operating portion arranges.

Described anti-overflow needle assembly also comprises the rotating crank 66 being connected with anti-overflow pin push rod 62.Rotating crank 66 is pivotally connected to support 20, is movably connected on nail bin push rod 54 simultaneously.By the operating portion of anti-overflow pin push rod 62, described anti-overflow pin push rod 62 can be advanced to far-end from the near-end of described anastomat, simultaneously, in the time advancing described anti-overflow pin push rod 62, also can link described transmission push rod 64 to distal movement, thereby promote described anti-overflow pin 61 to anastomat distal movement associatedly.

The operating process of anastomat in this utility model one embodiment in the time of Jia Bi physiological tissue is as follows:

Under the original state of anastomat, front rod 562 and back link 564 are an angle setting that is less than 180 degree each other, and front rod 562 is held in the support portion 522 on percussion handle 52 with back link 564 connecting portions.

In the time of needs Jia Bi physiological tissue, can first physiological tissue be positioned between the nail anvil of nail-anvil assembly 34 and the nail bin face of nail bin groupware 32, then, promoting anti-overflow pin push rod 62 moves to anastomat far-end, thereby link described transmission push rod 64 and anti-overflow pin 61 move to the far-end of described anastomat, so that described anti-overflow pin 61 stretches out from described nail bin groupware 32, and the receptacle being finally provided with nail-anvil assembly 34 coordinates, and seals the opening between described nail-anvil assembly 34 and described nail bin groupware 32.Be the opening of the described nail anvil seat 30 of sealing.

Then, drive percussion handle 52 pivotally to rotate towards gripping handle 40, now, support portion 522 can support the connecting portion of described front rod 562 and back link 564, making front rod 562 and back link 564 be forced to increase the state motion of angle between the two towards trend, is the top motion of this connecting portion to described anastomat.

In this utility model one embodiment, front rod 562 can be urged to folder by described support portion 522 with back link 564 and be the relatively stable mated condition that is slightly larger than 180 degree angles, and finally supports on the support division 224 arranging in supporting construction 20.Be that front rod 562 moves to interference state with back link 564.

In this process, the distance limiting between the near-end of the far-end of front rod 562 and back link 564 slightly reduces after being increased to gradually ultimate range again, because the near-end of back link 564 is fixed in supporting construction 20, the far-end of front rod 562 is realized and is driven the distal movement of described nail bin push rod 54 towards described anastomat, nail bin push rod 54 act on driving force on nail bin groupware 32 make nail bin groupware 32 be forced to close to nail-anvil assembly 34, thereby Jia Bi physiological tissue.

As shown in Figure 3, in this utility model one embodiment, percussion assembly 50 also comprises an ejector pin bar 58, and it is engaged in nail bin push rod 54 slidably, and ejector pin bar 58 is made as with the surface that knife rest 326 acts on the shape fitting each other.

In present embodiment, the cross section of ejector pin bar 58 is curved.

On percussion handle 52, be connected with a wedged plate 524, this wedged plate 524 can be assemblied in the interaction with ejector pin bar 58 with realization in nail bin push rod 54 at least in part.

The operating process of anastomat in this utility model one embodiment in the time cutting and sew up physiological tissue is as follows:

Complete after the operation of above-mentioned Jia Bi physiological tissue, percussion handle 52 is realized automatically reseting of percussion handle 52 towards the direction rotation away from gripping handle 40 under the drive of handle return spring (not shown).

In this process, wedged plate 524 on percussion handle 52 is triggered and is held in the near-end of ejector pin bar 58, now, again by the direction pivot rotation towards gripping handle 40 by percussion handle 52, make wedged plate 524 promote the distal movement of ejector pin bar 58 to anastomat, percussion realizing cutting knife 328 and pushing slice of nail 324 when, the suturing nail that pushing slice of nail 324 promotes in staple containing groove clenches on physiological tissue, and cutting knife 328 cuts corresponding physiological tissue simultaneously.

The near-end of ejector pin bar 58 has a holding part 582 that extends nail bin push rod 54 outsides, described percussion assembly also comprises that one is connected to the reseting elastic element 59 between this holding part 582 and supporting construction 20, in this utility model one embodiment, described reseting elastic element 59 is an extension spring.

In the process of being pulled the trigger at ejector pin bar 58, this reseting elastic element 59 is in extended state,, after percussion, unclamp percussion handle 52, described reseting elastic element 59 retracts ejector pin bar 58 under the effect of self pulling force,, also the knife rest 326 that is provided with cutting knife 328 is retracted, so meanwhile, described anastomat has completed whole percussion process, reaches percussion completion status.

Reach after percussion completion status at described anastomat, can, by pressing button release 70, with nail bin groupware 32 and the described nail-anvil assembly 34 of open closed, make anti-overflow pin push rod 62 returns simultaneously.

In this utility model one embodiment, button release 70 is movably connected in supporting construction 20 by a button release pin 702, and what the near-end of back link 564 also can be by with the connection realization of this button release pin 702 and supporting construction 20 is relative fixing.

The far-end of described button release 70 have can with back link 564 act on support end 704, while pressing button release 70, this supports end 704 and can drive front rod 562 and back link 564 to be less than the state motion of 180 degree angles towards formation, be that the connecting portion of this front rod 562 and this back link 564 is moved to the below of described anastomat, to destroy metastable mated condition between front rod 562 and back link 564, and then nail bin push rod 54 is returned to relative near-end with nail bin groupware 32, thereby apparatus is taken out from operative site.

Certainly, if desired reuse this anastomat, can replace new nail bin groupware 32 and/or nail-anvil assembly 34, thereby carry out next cutting and stitching.

As shown in Fig. 4 A, Fig. 4 B, Fig. 4 C, in this utility model one embodiment, described knife rest 326 comprises a tool holder body 3260, and described tool holder body 3260 comprises a distal face and a proximal end face, and described cutting knife 328 is stretched out by the distal face of described tool holder body 3260.

Wherein, described knife rest 326 also comprises the relative two side between distal face and the proximal end face that is arranged at described tool holder body 3260, in this utility model one embodiment, this relative two side is and the two side of the area of nail bin inwall laminating, be in this knife rest is assemblied in anastomat time, extend between anastomat above and below this relative two side.

In this relative knife rest sidewall, at least one knife rest sidewall, be equipped with at least one positioning convex point 3262.

In this utility model one embodiment, at least one knife rest sidewall comprises the first side wall face 3264 and the second side wall surface 3266 being connected with the first side wall face 3264.Described the first side wall face 3264 is connected by connecting portion 3268 with described the second side wall surface 3266, and described positioning convex point 3262 is positioned on described connecting portion 3268.

In the present embodiment, described tool holder body 3260, the first side wall face 3264, the second side wall surface 3266, connecting portion 3268 are formed in one.

In this utility model one embodiment, hollow out between described connecting portion 3268 and described tool holder body 3260, is to be provided with gap between described connecting portion 3268 and described tool holder body 3260.Described at least one positioning convex point 3262 is arranged on described connecting portion 3268.So, this positioning convex point 3262 can be by applying less power, can depart from the constraint of the locating hole arranging on this nail bin 322.

Described connecting portion 3268 at anastomat near-end on the direction of far-end, be also described nail bin groupware go out to follow closely in direction, its width is less than described the first side wall face 3264 and described the second side wall surface 3266 width on equidirectional.And described the first side wall face 3264 and described the second side wall surface 3266 are mirror image setting.In this utility model one embodiment, described positioning convex point 3262 equates to the distance of described the first side wall face 3264 with to the distance of described the second side wall surface 3266.

As shown in Fig. 5 A, Fig. 5 B, Fig. 5 C, Fig. 5 D, in this utility model one embodiment, described pushing slice of nail 324 comprises pushing slice of nail body 3240, and this pushing slice of nail body 3240 is provided with the slit that runs through its distal face and proximal end face, to coordinate described cutting knife 328 to pass through.Described distal face, in the time being arranged on anastomat, is positioned at the end face of anastomat far-end comparatively speaking, and in like manner, described proximal end face, in the time being installed on anastomat, is positioned at the end face of anastomat near-end comparatively speaking.

Distal face at described pushing slice of nail body 3240 is provided with the nail-pushing part 3242 that coordinates staple containing groove to the remote extension of described anastomat.

In this utility model one embodiment, at least one elastic component 3244 that is provided with at least one groove 3243 and mates with described groove at least one sidewall of the relative two side of described pushing slice of nail body 3240, described elastic component 3244 is extended by sidewall, and the sidewall setting of outstanding described pushing slice of nail body 3240 at least in part, a part that is described elastic component is positioned at described groove, and another part protrudes described groove 3243 and arranges.

Wherein, this relative two side is the two side that area is larger, is in this pushing slice of nail 324 is assemblied in anastomat time, and extend between anastomat above and below this relative two side.

In this utility model one embodiment, at least one sidewall of described two side comprises the first side wall face 3246, the second side wall surface 3248 and connects the boss 3247 of described the first side wall face and the second side wall surface, the setting adjacent with described groove of described boss 3247, and described elastic component 3244 is extended by described boss.In this utility model one embodiment, the bearing of trend of described elastic component 3244 is the proximal extension from the far-end of described anastomat to described anastomat, be its bearing of trend and described nail bin groupware go out to follow closely opposite direction.

In this utility model one embodiment, described elastic component comprises: the bottom surface relative with described groove 3243, and with the opposing end face in described bottom surface.

Wherein, described end face comprises the first end face 32442, the second end face 32444.Described the first end face 32442 connects described boss 3247 and described the second end face 32444, and described the first end face 32442 is made as inclined-plane.

Described the second end face 32444 is greater than the distance of described boss 3247 apart from described groove floor apart from the distance of described groove floor.

Wherein, described the second end face 32444 protrudes from described groove 3243 and arranges.The near-end of described the second end face 32444 and described bottom surface is provided with a resistance surface 32448, and this resistance surface 32448 is a plane, and described resistance surface 32448 is parallel with the proximal end face of described pushing slice of nail body.

As shown in Fig. 6 A, 6B, 6C, 6D, in this utility model one embodiment, described nail bin 322 comprises a spatial accommodation, and described knife rest 326, cutting knife 328, pushing slice of nail 324 can be positioned in described spatial accommodation.

On at least one sidewall of described spatial accommodation two opposite side walls, be provided with locating hole 3220 and locating slot 3222 that at least one pair of coordinates with described positioning convex point 3262 and described elastic component 3244 respectively.Described locating hole 3220 matches with the shape of described positioning convex point 3262.On described nail bin, be also provided with the gathering sill 3224 that coordinates described elastic component 3244 to slide.Further, described gathering sill 3224 is arranged on the same sidewall of described nail bin with described locating slot 3222, and described gathering sill 3224 is communicated with described locating slot 3222, so that described elastic component 3244 moves on the position of described locating slot 3222 easily in nail bin.

Wherein, in this utility model one embodiment, this nail bin two opposite side walls is the two side that area is larger, is in this nail bin is assemblied in anastomat time, and this two opposite side walls is extended between anastomat above and below.

In this utility model one embodiment, described locating slot 3222 arranges near described nail bin face with respect to described locating hole 3220.

Described nail bin groupware go out to follow closely in direction, described locating hole 3220 and described locating slot 3222 arrange alternately.,, in the time that described nail bin 322 is being assemblied in anastomat, described locating hole 3220 and described locating slot 3222 are provided with spacing on described anastomat above-below direction.Described locating hole 3220 and described locating slot 3222 arrange independently of each other, are that described locating hole 3220 and described locating slot 3222 are not communicated with.

Below will be by anastomat under original state, under percussion state, and under percussion completion status, describe the matching relationship of positioning convex point 3262, elastic component 3244, locating hole 3220, locating slot 3222 in detail:

As shown in Fig. 7 A, 7B, in this utility model one embodiment, under the original state of described anastomat, described knife rest 326, cutting knife 328, pushing slice of nail 324 are loaded in described nail bin 322.

Under this state, described positioning convex point 3262 matches with described locating hole 3220, and described locating hole 3220 is spacing to described positioning convex point 3262; Meanwhile, described elastic component 3244 is resisted against the inner surface of a sidewall of described nail bin 322.

As shown in Fig. 8 A, 8B, in this utility model one embodiment, under the percussion state of described anastomat, described knife rest 326, cutting knife 328, pushing slice of nail 324 are subject to ejector pin bar 58 and act on, move to far-end from the near-end of described anastomat, realize cutting and stitching to physiological tissue.

Under this state, described positioning convex point 3262 orders about because of active force, departs from the constraint of described locating hole 3220, from locating hole 3220, move to described anastomat far-end, and with the inner surface of a sidewall of described nail bin 322 against; Meanwhile, described elastic component 3244 is pushed in described locating slot 3222, and under the resilient force of elastic component 3244, at least a portion of described elastic component 3244 protrudes from described locating slot 3222.

In this utility model one embodiment, the second outer surface 32442 of at least described elastic component 3244 protrudes from described locating slot 3222 under this state.

As shown in Fig. 9 A, 9B, in this utility model one embodiment, under the percussion completion status of described anastomat, described pushing slice of nail 324 is interfered by the resistance surface 32448 of elastic component 3244 thereon and the notch end face of described locating slot 3222, described elastic component is spacing by described locating slot, and rests on the position under percussion state.Be the far-end that described pushing slice of nail 324 rests on anastomat.

Described knife rest 326 and cutting knife 328, driven by the reseting elastic element of described anastomat, and the far-end by it from anastomat retracts to near-end, until the positioning convex point 3262 on described knife rest 326 comes back in described locating hole 3220, spacing by described locating hole.So far, described anastomat completes shot.Anastomat of the present utility model and nail bin groupware thereof, can, after anastomat has been pulled the trigger, return cutting knife and fix, and to avoid cutting knife to accidentally injure operator, causes malpractice.

Be to be understood that, although this description is described according to embodiment, but be not that each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should make description as a whole, technical scheme in each embodiment also can, through appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.

Listed a series of detailed description is above only illustrating for feasibility embodiment of the present utility model; they are not in order to limit protection domain of the present utility model, all do not depart from the equivalent embodiment that this utility model skill spirit does or change and all should be included in protection domain of the present utility model within.

Claims (10)

1. a nail bin groupware, for anastomat, described nail bin groupware comprises: nail bin, pushing slice of nail, knife rest, and be arranged on the cutting knife on described knife rest, it is characterized in that,

Described knife rest comprises two sidewalls that are oppositely arranged, and at least one sidewall of the sidewall that described knife rest two is oppositely arranged is provided with at least one positioning convex point;

Described pushing slice of nail comprises the sidewall that nail-pushing part and two is oppositely arranged, and at least one side of the sidewall that described pushing slice of nail two is oppositely arranged is provided with at least one elastic component;

Described nail bin comprises the sidewall that nail bin face and two is oppositely arranged, at least one sidewall of the sidewall that two of described nail bin is oppositely arranged is provided with at least one locating hole coordinating with positioning convex point described at least one, and described locating hole can carry out spacing to described positioning convex point; With

At least one locating slot coordinating with elastic component described at least one, described locating slot can carry out spacing to described elastic component; Wherein, the relatively described locating hole of described locating slot arranges near described nail bin face.

2. nail bin groupware according to claim 1, is characterized in that, described locating hole and the separate setting of described locating slot.

3. nail bin groupware according to claim 1, it is characterized in that, described knife rest comprises tool holder body, at least one sidewall of the two side of described tool holder body comprises the first side wall face, the second side wall surface, and connect the connecting portion of described the first side wall face and the second side wall surface, between described connecting portion and described tool holder body, be provided with gap, described positioning convex point is arranged on described connecting portion.

4. nail bin groupware according to claim 3, is characterized in that, described connecting portion goes out to follow closely in direction described nail bin groupware, and its width is less than described the first side wall face and described the second side wall surface width on equidirectional.

5. nail bin groupware according to claim 1, it is characterized in that, at least one sidewall of the sidewall that described pushing slice of nail two is oppositely arranged is provided with at least one groove, described elastic component is extended by described sidewall, and a part for described elastic component is positioned at described groove, another part is given prominence to described groove setting.

6. nail bin groupware according to claim 5, it is characterized in that, at least one sidewall of the sidewall that described pushing slice of nail two is oppositely arranged comprises the first side wall face, the second side wall surface, and connect the boss of described the first side wall face and described the second side wall surface, the setting adjacent with described groove of described boss, described elastic component is extended by described boss.

7. nail bin groupware according to claim 6, it is characterized in that, described elastic component comprises the bottom surface relative with described groove, and with the opposing end face in described bottom surface, wherein, described end face comprises the first end face, the second end face, and the near-end of described the second end face and described bottom surface is provided with a resistance surface;

Described the first end face is inclined-plane, and it connects described the second end face and described boss, and described the second end face is greater than the end face of described boss apart from the distance of described groove floor apart from the distance of described groove floor.

8. nail bin groupware according to claim 7, is characterized in that, described resistance surface is parallel with the distal face of described pushing slice of nail body.

9. nail bin groupware according to claim 1, is characterized in that, described nail bin groupware go out to follow closely in direction, described locating hole and described locating slot arrange alternately.

10. an anastomat, is characterized in that, described anastomat comprises: housing, gripping handle, percussion assembly, and nail bin groupware as described in any one in claim 1～9, wherein, described anastomat comprises original state, percussion state, and percussion completion status

When described anastomat is under original state, described locating hole is spacing to positioning convex point, and described elastic component is resisted against the inner surface of nail bin sidewall;

When described anastomat is under percussion state, described positioning convex point departs from described locating hole, and is resisted against the inner surface of nail bin sidewall, and at least a portion of described elastic component protrudes from described locating slot;

When described anastomat is under percussion completion status, described elastic component is spacing by described locating slot, and described pushing slice of nail rests on the far-end of described anastomat, and described positioning convex point is driven by the return unit of described anastomat, return back in described locating hole, and spacing by described locating hole.