CN113367753B

CN113367753B - Anastomat with nail bin replacing function

Info

Publication number: CN113367753B
Application number: CN202110734401.XA
Authority: CN
Inventors: 邸贺; 尤晓锦
Original assignee: Suzhou Frankenman Medical Equipment Co Ltd
Current assignee: Suzhou Frankenman Medical Equipment Co Ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-04-05
Anticipated expiration: 2041-06-30
Also published as: CN113367753A

Abstract

The invention relates to the technical field of medical instruments and discloses an anastomat with a nail bin replacing function, which comprises a shell, wherein a movable handle is arranged in the shell, a first clamping groove is formed in the lower surface of one side of the shell, a first through hole is formed in the first clamping groove close to the outer side surface of the shell, a first supporting rod penetrates through the first through hole, the end part, located in the first through hole, of the first supporting rod does not enter the first clamping groove, a first spring is fixedly arranged on the side surface, located outside a rod body of the shell, of the first supporting rod, a clamping button is fixedly arranged at the end part, far away from the first through hole, of the first supporting rod, a first clamping block is clamped in the first clamping groove and provided with three vertical blocks, the vertical block close to the outer side has elasticity, and the first clamping block is fixedly arranged on the upper surface of the nail bin shell. The stapler can be detachably provided with the nail bin, so that the nail bin is convenient to replace, the stapler is convenient to operate, in addition, the movement of the movable handle is limited through the safety rod, and then the safety effect is achieved on the stapler.

Description

Anastomat with nail bin replacing function

Technical Field

The invention relates to the technical field of medical instruments, in particular to an anastomat with a nail bin replacing function.

Background

The anastomat is the first stapler in the world, is used for gastrointestinal anastomosis for nearly a century, and is not widely used for gastrointestinal surgery until 1978, and can be mainly divided into a skin anastomat, a circular anastomat for digestive tracts (esophagus, stomach and intestine and the like), a rectal anastomat, a circular hemorrhoid anastomat, a circumcision anastomat, a blood vessel anastomat, a hernia anastomat, a lung cutting stapler and the like. The anastomat is equipment used for replacing the traditional manual suturing in medicine, and due to the development of modern science and technology and the improvement of manufacturing technology, the anastomat used clinically has reliable quality, convenient use, tightness and proper tightness, particularly has the advantages of quick suturing, simple and convenient operation, few side effects, few operation complications and the like, and can also be used for excising the focus of a tumor operation which cannot be excised in the past.

However, the nail bins of the existing skin anastomat are fixedly arranged on the skin anastomat, the internal suturing nails cannot be used after being used up, resources are wasted, and the existing skin anastomat is subjected to misoperation, so that the suturing nails are wasted and accidents can occur.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the anastomat with the nail bin replacing function, which has the advantages that the nail bin can be detached, the anastomat is prevented from being operated by mistake, the movable handle is reset and the like, and the problems that the nail bin is fixed and the movable handle is easy to move are solved.

(II) technical scheme

In order to solve the technical problems that the nail bin is fixed and the movable handle is easy to move, the invention provides the following technical scheme: the utility model provides an anastomat with function is changed to nail storehouse, includes the shell, the shell runs through fixedly to be provided with the round pin axle, the round pin outside is rotated and is connected with movable handle, first draw-in groove has been seted up to shell one side lower surface, first draw-in groove has seted up first through-hole by shell outside side, the inside first bracing piece that runs through of first through-hole is provided with, the tip that first bracing piece is located first through-hole does not get into inside the first draw-in groove, first bracing piece is located shell outside body of rod side and fixes and be provided with first spring, first bracing piece is kept away from first through-hole end fixing and is provided with the centre gripping button, the joint has first fixture block in the first draw-in groove, the part in the outside of first fixture block has elasticity, first fixture block is fixed to be set up on nail storehouse shell upper surface.

Preferably, the first clamping block is provided with three vertical blocks, wherein the vertical block close to the outer side has elasticity, a base is fixedly arranged in the middle of the inside of the nail bin shell, the end part of the base is flush with the end part of the nail bin shell, a workbench is fixedly arranged on the upper surface of the base, the end part of the workbench is longer than the end part of the base, a nail pushing sheet is clamped between the workbench and the nail bin shell, and the lower surface of the nail pushing sheet is in contact with the upper surface of the workbench;

the nail pushing sheet is located on two sides of the workbench and provided with guide rods in a penetrating mode, one end of each guide rod is fixedly arranged on the inner side face of the nail bin shell, the other end of each guide rod is fixedly arranged in the corresponding fixing block, the corresponding fixing block is fixedly arranged inside the nail bin shell, and the lower surface of the corresponding fixing block is in contact with the lower surface of the inner portion of the nail bin shell.

Preferably, the guide rod is located the body of rod side fixed setting between nail storehouse shell closed end and the ejector pin piece and pushes away the nail spring, the workstation is located and keeps away from the even sewing nail of arranging in ejector pin spring one end upper surface.

Preferably, the nail cartridge shell is fixedly provided with connecting blocks at two sides of the unclosed end part, blocking pieces are fixedly arranged at opposite side surfaces of the two connecting blocks, and the blocking pieces are far away from the end part of the connecting blocks and are positioned between the front two suturing nails.

Preferably, the movable handle is close to the lower surface of one end of the nail bin shell and is provided with a second clamping groove, a second clamping block is clamped in the second clamping groove, the second clamping block is far away from a nail pushing plate fixedly connected with the end part of the second clamping groove, the nail pushing plate is far away from the end part of the second clamping block and is fixedly provided with an extrusion groove, and the lower ends of the two sides of the extrusion groove are provided with chamfers.

Preferably, the ejector pin board both sides are all fixed and are provided with the stopper, the stopper joint is in the spacing groove, the spacing groove is seted up at the shell inboardly, the stopper is kept away from second fixture block one side fixedly connected with second spring, the second spring is located the spacing inslot portion.

Preferably, the shell is kept away from nail storehouse shell tip upper surface and has been seted up the second through-hole, the fixed safeties that is provided with in second through-hole inside, the fixed ring that is connected with in second through-hole surface, gu fixed ring side runs through and is provided with the slip ring, the slip ring is hollow circular cylinder, the slip ring runs through and is provided with the sliding block.

Preferably, the upper end of the fixing ring is fixedly connected with a supporting block, the diameter of the supporting block is smaller than that of the second through hole, the supporting block is arranged in the second through hole in a penetrating mode, the upper end of the supporting block is provided with a second supporting rod in a penetrating mode, safety springs are fixedly arranged on the side faces of the supporting block and the second supporting rod, and a safety button is fixedly connected to the upper end of the second supporting rod.

Preferably, the fixed ring is internally provided with a rotating block in a penetrating manner, the upper part of the rotating block is in contact with the lower end of the second supporting rod, the side surface of the rotating block is fixedly provided with a sliding rail, and the lower end of the rotating block is fixedly connected with a safety rod.

Preferably, the bottom of the nail box shell is symmetrically provided with clamping blocks along the midline, and the distance between the two clamping blocks is smaller than the width of the stitching nail.

(III) advantageous effects

Compared with the prior art, the invention provides the anastomat with the nail bin replacing function, which has the following beneficial effects:

1. this anastomat with function is changed to nail storehouse through dismantling and setting up the nail storehouse, when dismantling the nail storehouse, press both sides centre gripping button, the hand is located nail storehouse below this moment, pushes away centre gripping button inwards along first through-hole, extrudees first fixture block, extrudees the width that is less than first draw-in groove with the width of first fixture block, the nail storehouse will be followed and dropped the hand of nail storehouse below in the first draw-in groove on, during the installation nail storehouse, aim at first draw-in groove with first fixture block, then inwards promote to first fixture block card inside first draw-in groove can. The nail bin is convenient to replace and operate.

2. This anastomat with function is changed to nail storehouse, through setting up safeties, press the insurance button, the insurance button drives the second bracing piece downstream, because second bracing piece and turning block fixed connection, the event second bracing piece drives the turning block downstream, because the turning block side is provided with the slide rail, the event turning block is at the downstream in-process, the slide rail that the tip moved along the turning block side in the solid fixed ring that the sliding block is located, utilize the orbit of slide rail to make the insurance button pressed once after, the change degree of insurance pole direction, the rotation to movable handle is restricted, avoid the anastomat by the maloperation.

3. This anastomat with function is changed to nail storehouse through setting up two clamp splice in nail storehouse shell bottom, utilizes two clamp splice in advance to get up the skin laminating of patient's wound both sides, then just need not hold between the fingers wound both sides often at the suture in-process, liberates the other hand, and conveniently operates this anastomat.

4. This anastomat with function is changed to nail storehouse through keeping away from second fixture block one side fixedly connected with second spring at the stopper, utilizes the reaction force of second spring to reset fast movable handle, conveniently carries out follow-up sewing process.

5. This anastomat with function is changed to nail storehouse through the fixed insurance spring that is provided with in supporting shoe and second bracing piece side, utilizes insurance spring's reaction force to reset to the insurance button, and supporting shoe and second bracing piece play the guide effect to a certain extent to insurance spring simultaneously, avoid insurance spring to remove and produce positional deviation.

Drawings

FIG. 1 is a perspective view of the overall construction of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of the interior of the housing of the present invention;

FIG. 4 is an enlarged view of the invention at A;

FIG. 5 is a schematic view of a staple cartridge of the present invention;

FIG. 6 is a schematic view of the internal structure of the staple cartridge of the present invention;

FIG. 7 is a schematic view of the joint of the ejector pin plate of the present invention;

FIG. 8 is a schematic view of the nail pushing plate of the present invention;

fig. 9 is a schematic diagram of the safety structure of the present invention.

In the figure: 1. a housing; 2. a pin shaft; 3. a movable handle; 4. a first card slot; 5. a first through hole; 6. a first support bar; 7. a first spring; 8. a clamping button; 9. a first clamping block; 10. a nail bin housing; 11. a base; 12. a work table; 13. a nail pushing sheet; 14. a guide bar; 15. a nail pushing spring; 16. a fixed block; 17. suturing nails; 18. connecting blocks; 19. a baffle plate; 20. a second card slot; 21. a second fixture block; 22. a nail pushing plate; 23. extruding a groove; 24. a limiting block; 25. a limiting groove; 26. a second spring; 27. a clamping block; 28. a second through hole; 29. a safety device; 30. a fixing ring; 31. a slip ring; 32. a slider; 33. a support block; 34. a second support bar; 35. a safety spring; 36. an insurance button; 37. rotating the block; 38. a bumper.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, an anastomat with a nail cartridge replacing function comprises a shell 1, the shell 1 is fixedly provided with a pin shaft 2 in a penetrating way, the outer side of the pin shaft 2 is rotatably connected with a movable handle 3, the lower surface of one side of the shell 1 is provided with a first clamping groove 4, the side surface of the first clamping groove 4 close to the outer side of the shell 1 is provided with a first through hole 5, the first through hole 5 is internally provided with a first supporting rod 6 in a penetrating way, the end part of the first supporting rod 6 positioned in the first through hole 5 does not enter the first clamping groove 4, the side surface of the rod body of the first supporting rod 6 positioned outside the shell 1 is fixedly provided with a first spring 7, the end part of the first supporting rod 6 far away from the first through hole 5 is fixedly provided with a clamping button 8, a first clamping block 9 is clamped in the first clamping groove 4, the first clamping block 9 is provided with three vertical blocks, wherein the vertical block close to the outer side has elasticity, the first clamping block 9 is fixedly arranged on the upper surface of the nail cartridge shell 10, the middle of the inside of the nail bin shell 10 is fixedly provided with a base 11, the end part of the base 11 is flush with the end part of the nail bin shell 10, the upper surface of the base 11 is fixedly provided with a workbench 12, the end part of the workbench 12 is longer than the end part of the base 11, a nail pushing sheet 13 is clamped between the workbench 12 and the nail bin shell 10, and the lower surface of the nail pushing sheet 13 is in contact with the upper surface of the workbench 12.

Further, the nail pushing sheet 13 is located on two sides of the workbench 12 and provided with a guide rod 14 in a penetrating mode, one end of the guide rod 14 is fixedly arranged on the inner side face of the nail bin shell 10, the other end of the guide rod 14 is fixedly arranged in a fixing block 16, the fixing block 16 is fixedly arranged inside the nail bin shell 10, and the lower surface of the fixing block 16 is in contact with the lower surface inside the nail bin shell 10. Through fixing guide bar 14 one end on nail storehouse shell 10, the other end is fixed on fixed block 16 to fix the position of guide bar 14, because guide bar 14 plays the guide effect when ejector pin piece 13 removes to the nail-out direction, thereby make ejector pin piece 13 direction accuracy when removing, the motion is more stable, and then makes the nail-out process of sewing up nail 17 more stable.

Furthermore, a nail pushing spring 15 is fixedly arranged on the side face of the rod body of the guide rod 14 between the closed end part of the nail bin shell 10 and the nail pushing sheet 13, and the upper surface of the workbench 12 at one end far away from the nail pushing spring 15 is uniformly provided with stitching nails 17. Before the nail is pushed, the nail pushing spring 15 is stressed to deform and is in a compressed state, the nail pushing spring 15 generates reaction force on the nail bin shell 10 and the nail pushing sheet 13, and after the previous nail pushing process is completed, the reaction force of the nail pushing spring 15 pushes the nail pushing sheet 13 to move towards the nail ejecting direction, so that the sewing nail 17 moves towards the nail ejecting direction.

Furthermore, the cartridge housing 10 is fixedly provided with connecting blocks 18 at two sides of the unclosed end, blocking pieces 19 are fixedly provided at opposite sides of the two connecting blocks 18, and the blocking pieces 19 are located between the two previous suturing nails 17 far away from the end of the connecting blocks 18. By placing the stop piece 19 between the first two staples 17, the stapler does not have the possibility of the latter staple 17 falling out during the staple ejection process. In addition, in concrete application, the material of separation blade 19 is similar to the material of duplicating the board on the market, has certain toughness, when nail pushing sheet 13 moves to the nail ejection direction, when exerting oneself to separation blade 19 one side, the effect of separation blade 19 atress appears crooked, continues exerting oneself, the separation blade degree of curvature increase, when the certain degree of increase, sew up the position that a nail 17 can replace former sewing nail 17, then separation blade 19 reconversion, continue to keep out next sewing nail 17 for the condition that the nail can not appear falling appears.

Further, a second clamping groove 20 is formed in the lower surface of the end, close to the nail bin shell 10, of the movable handle 3, a second clamping block 21 is clamped in the second clamping groove 20, the second clamping block 21 is far away from a nail pushing plate 22 fixedly connected to the end portion of the second clamping groove 20, the nail pushing plate 22 is far away from the end portion of the second clamping block 21, an extrusion groove 23 is fixedly formed in the end portion of the second clamping block 22, and lower ends of two sides of the extrusion groove 23 are chamfered. Through seting up second draw-in groove 20 at movable handle 3 lower surface, utilize second fixture block 21 to connect ejector pin board 22 on movable handle 3 then for movable handle 3 front end can not be obstructed at the in-process of downstream, and then makes ejector pin board 22's ejector pin process more smooth.

Further, the two sides of the nail pushing plate 22 are both fixedly provided with a limiting block 24, the limiting block 24 is clamped in a limiting groove 25, the limiting groove 25 is arranged on the inner side of the shell 1, the limiting block 24 is far away from one side of the second clamping block 21 and is fixedly connected with a second spring 26, and the second spring 26 is located inside the limiting groove 25. In the process of 3 front ends of movable handle downwardly moving, connect and keep away from the second spring 26 of 3 sides of movable handle at stopper 24 and compressed gradually, length subtracts the weak point gradually to make second spring 26 to shell 1 and stopper 24's reaction force crescent, after the nail pushing process of ejector pin board 22 was accomplished, unclamp movable handle 3, under the reaction force effect of second spring 26, movable handle 3 resets fast, prepares for the sewing process next time.

Furthermore, a second through hole 28 is formed in the upper surface of the end portion, away from the nail bin housing 10, of the housing 1, a safety device 29 is fixedly arranged inside the second through hole 28, a fixing ring 30 is fixedly connected to the lower surface of the second through hole 28, a sliding ring 31 penetrates through the side surface of the fixing ring 30, the sliding ring 31 is in a hollow cylindrical shape, and a sliding block 32 penetrates through the sliding ring 31. By providing the safety device 29, the skin stapler is prevented from being mishandled when it is not necessary to use the skin stapler.

Furthermore, the upper end of the fixing ring 30 is fixedly connected with a supporting block 33, the diameter of the supporting block 33 is smaller than that of the second through hole 28, the supporting block 33 is arranged in the second through hole 28 in a penetrating mode, the upper end of the supporting block 33 is provided with a second supporting rod 34 in a penetrating mode, the side faces of the supporting block 33 and the second supporting rod 34 are fixedly provided with a safety spring 35, and the upper end of the second supporting rod 34 is fixedly connected with a safety button 36. Through pressing insurance button 36, drive second bracing piece 34 and move down, at the in-process that second bracing piece 34 moved down, insurance button 36 extrudees insurance spring 35 downwards, and insurance spring 35 atress produces deformation, and length shortens, produces reaction force to insurance button 36, at the one-time of unclamping insurance button 36, makes insurance button reset under insurance spring 35's reaction force. In addition, in the specific application process, the supporting block 33 and the second supporting rod 34 play a role in guiding the safety spring 35 to a certain extent, and the safety spring 35 is prevented from moving to generate position deviation.

Furthermore, a rotating block 37 penetrates through the fixing ring 30, the upper portion of the rotating block 37 is in contact with the lower end of the second support rod 34, a sliding rail is fixedly arranged on the side surface of the rotating block 37, and a safety rod 38 is fixedly connected to the lower end of the rotating block 37. After the safety button 36 is pressed, the safety button 36 drives the second support rod 34 to move downwards, the second support rod 34 drives the rotating block 37 to move downwards due to the fixed connection of the second support rod 34 and the rotating block 37, and in the downward movement process of the rotating block 37, the inner end part of the sliding block 32, which is positioned in the fixed ring 30, moves along the sliding rail on the side surface of the rotating block 37, and after the safety button 36 is pressed once by utilizing the track of the sliding rail, the direction of the safety rod 38 is changed by 180 degrees. In a specific application, the track of the slide rail on the side of the rotating block 37 is vertically arranged at the opposite positions of two sides, the track outside the opposite positions is the upper end of the vertical track connected to the lower end of the other vertical track, in addition, before the pressing of the insurance button 36 is started and after the pressing is finished, the end part of the sliding block 32 is positioned in the vertical track of the slide rail, and the pressing process is positioned in other slide rail parts.

Further, the cartridge housing 10 is provided with clamp blocks 27 symmetrically along the center line at the bottom, and the distance between the two clamp blocks 27 is smaller than the width of the staples 17. By arranging the two clamping blocks 27 at the bottom of the nail bin shell 10, the skin on two sides of the wound of a patient is attached by the two clamping blocks 27 in advance, then the two sides of the wound do not need to be pinched at any time in the suturing process, the other hand is released, and the operation of the anastomat is convenient.

The working principle is as follows: before use, two clamping blocks 27 at the bottom of the cartridge shell 10 are used for attaching the skin of a patient on two sides of a wound, and then a nail outlet is aligned to a position needing suturing. Then the safety device 29 is opened, the safety button 36 is firstly pressed, the safety button 36 drives the second support rod 34 to move downwards, the second support rod 34 drives the rotating block 37 to move downwards because the second support rod 34 is fixedly connected with the rotating block 37, the rotating block 37 is driven to move downwards because the side surface of the rotating block 37 is provided with a slide rail, in the downward movement process of the rotating block 37, the inner end part of the sliding block 32, which is positioned at the fixed ring 30, moves along the slide rail at the side surface of the rotating block 37, after the safety button 36 is pressed once by utilizing the track of the slide rail, the direction of the safety rod 38 is changed to 180 degrees, after the safety device 29 is opened, and the movable handle 3 can move.

The movable handle 3 is held below the movable handle 3, the front end of the movable handle 3 moves downwards by utilizing the lever principle, the movable handle 3 drives the nail pushing plate 22 to move downwards and move to the position of the foremost stitching nail 17 above the workbench 12, the foremost stitching nail 17 is extruded by utilizing the extrusion groove 23 at the lower end of the nail pushing plate 22, and then the wound of the patient is stitched. At ejector pad 22 in-process that moves down, utilize to set up second draw-in groove 20 at activity handle 3 lower surface, make activity handle 3 front end can not be obstructed at the in-process of downstream, and then make ejector pad 22's ejector pad process smoother, in addition, connect and keep away from the second spring 26 of activity handle 3 side at stopper 24 and compressed gradually, length subtracts weak point gradually, thereby make second spring 26 to shell 1 and stopper 24 reaction force crescent, after the nail process of once pushing away of ejector pad 22 is accomplished, loosen activity handle 3, under the reaction force effect of second spring 26, activity handle 3 resets fast.

After the completion of sewing up of foremost end staple 17, the inside reaction force that pushes away nail spring 15 of nail storehouse shell 10 promotes nail pusher 13 and removes to nail out direction, thereby make staple 17 remove to nail out direction, in addition, set up separation blade 19 between two preceding staples 17, separation blade 19's material is similar to the material of duplicating the board on the market, certain toughness has, when nail pusher 13 removes to nail out direction, when exerting oneself to separation blade 19 one side, the bending appears in the effect of separation blade 19 atress, continue exerting oneself, separation blade bending degree increases, when the certain degree of increase, the position of the preceding staple 17 of nail 17 fungible of staple 17 is sewed up to separation blade 17, then separation blade 19 reconversion, continue to keep off next staple 17, make the condition that the nail can not appear falling appear.

After the suturing process of one suturing nail 17 is finished, the anastomat is moved along the wound direction of a patient, so that the two sides of the wound can be clamped by the clamping action of the clamping blocks 27, and then the wound is sutured subsequently. After the wound is sutured, the process of opening the safety device 29 is repeated, the safety device 29 is closed, and after the safety device 29 is closed, the movable handle 3 cannot rotate, so that the anastomat is prevented from being operated by mistake.

If need change the nail storehouse, at first press both sides centre gripping button 8, the hand is located the nail storehouse below this moment, push away centre gripping button 8 inwards along first through-hole 5, extrude first fixture block 9, extrude the width that is less than first draw-in groove 4 with the width of first fixture block 9, the nail storehouse will be followed and dropped to the hand of nail storehouse below in first draw-in groove 4, at the inside motion in-process of centre gripping button 8, first spring 7 is compressed and produces reaction force, treat to loosen behind the centre gripping button 8, the reaction force of first spring 7 makes centre gripping button 8 reset fast. When the nail bin is installed, only the first clamping block 9 needs to be aligned to the first clamping groove 4, and then the first clamping block 9 is pushed inwards to be clamped inside the first clamping groove 4.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an anastomat with nail storehouse is changed function, includes shell (1), its characterized in that: the clamping device is characterized in that a pin shaft (2) is fixedly arranged on the shell (1) in a penetrating manner, a movable handle (3) is rotatably connected to the outer side of the pin shaft (2), a first clamping groove (4) is formed in the lower surface of one side of the shell (1), a first through hole (5) is formed in the outer side surface of the shell (1) by the aid of the first clamping groove (4), a first supporting rod (6) is arranged in the first through hole (5) in a penetrating manner, the end part, located in the first through hole (5), of the first supporting rod (6) does not enter the first clamping groove (4), a first spring (7) is fixedly arranged on the side surface of the outer rod body of the shell (1) of the first supporting rod (6), a clamping button (8) is fixedly arranged at the end part, far away from the first through hole (5), of the first supporting rod (6), a first clamping block (9) is clamped in the first clamping groove (4), and the part, of the outer side of the first clamping block (9) has elasticity, the first clamping block (9) is fixedly arranged on the upper surface of the nail bin shell (10), a second through hole (28) is formed in the upper surface of the end portion, far away from the nail bin shell (10), of the shell (1), a safety device (29) is fixedly arranged in the second through hole (28), a fixing ring (30) is fixedly connected to the lower surface of the second through hole (28), a sliding ring (31) penetrates through the side surface of the fixing ring (30), the sliding ring (31) is in a hollow cylindrical shape, a sliding block (32) penetrates through the sliding ring (31), a supporting block (33) is fixedly connected to the upper end of the fixing ring (30), the diameter of the supporting block (33) is smaller than that of the second through hole (28), the supporting block (33) penetrates through the second through hole (28), a second supporting rod (34) penetrates through the upper end of the supporting block (33), and a safety spring (35) is fixedly arranged on the side surfaces of the supporting block (33) and the second supporting rod (34), the upper end of the second supporting rod (34) is fixedly connected with a safety button (36), a rotating block (37) penetrates through the inside of the fixing ring (30), the upper portion of the rotating block (37) is in contact with the lower end of the second supporting rod (34), a sliding rail is fixedly arranged on the side face of the rotating block (37), a safety rod (38) is fixedly connected to the lower end of the rotating block (37), the track of the sliding rail on the side face of the rotating block (37) is vertically arranged at the relative positions on two sides, the track except the relative positions is the upper end of the vertical track and is connected to the lower end of the other vertical track, in addition, before the pressing of the safety button (36) is started and after the pressing is finished, the end portion of the sliding block (32) is positioned inside the vertical track of the sliding rail, the pressing process is positioned at other sliding rail portions, when the safety device (29) is opened, the safety button (36) is pressed, and the safety button (36) drives the second supporting rod (34) to move downwards, the second support rod (34) is fixedly connected with the rotating block (37), so the second support rod (34) drives the rotating block (37) to move downwards, a slide rail is arranged on the side face of the rotating block (37), in the downward movement process of the rotating block (37), the inner end part of the sliding block (32) located in the fixed ring (30) moves along the slide rail on the side face of the rotating block (37), after the safety button (36) is pressed once by utilizing the track of the slide rail, the direction of the safety rod (38) is changed by 180 degrees, after the safety rod (38) is changed by 180 degrees, the safety device (29) is opened, the movable handle (3) can move, after the wound is sutured, the process of opening the safety device (29) is repeated, the safety device (29) is closed, and after the safety device (29) is closed, the movable handle (3) cannot rotate.

2. The stapler with cartridge replacement function according to claim 1, wherein: the first clamping block (9) comprises three vertical blocks, wherein the vertical block close to the outer side has elasticity, a base (11) is fixedly arranged in the middle of the interior of the nail bin shell (10), the end part of the base (11) is flush with the end part of the nail bin shell (10), a workbench (12) is fixedly arranged on the upper surface of the base (11), the end part of the workbench (12) is longer than the end part of the base (11), a nail pushing sheet (13) is clamped between the workbench (12) and the nail bin shell (10), and the lower surface of the nail pushing sheet (13) is in contact with the upper surface of the workbench (12);

the nail pushing sheet (13) is located on two sides of the workbench (12) and provided with guide rods (14) in a penetrating mode, one ends of the guide rods (14) are fixedly arranged on the inner side face of the nail bin shell (10), the other ends of the guide rods (14) are fixedly arranged in the fixing blocks (16), the fixing blocks (16) are fixedly arranged inside the nail bin shell (10), and the lower surfaces of the fixing blocks (16) are in contact with the inner lower surface of the nail bin shell (10).

3. The stapler with cartridge replacement function according to claim 2, wherein: the guide rod (14) is located and is fixedly provided with between closed tip of nail storehouse shell (10) and ejector pin piece (13) body of rod side and pushes away nail spring (15), workstation (12) are located and keep away from ejector pin spring (15) one end upper surface and evenly arrange and sew up nail (17).

4. The stapler with cartridge replacement function according to claim 3, wherein: the nail bin shell (10) is located unclosed end portion both sides and is fixedly provided with connecting blocks (18), two the relative side of connecting blocks (18) is fixedly provided with separation blade (19), separation blade (19) keep away from connecting block (18) end portion and are located between two preceding sewing nails (17).

5. The stapler with cartridge replacement function according to claim 4, wherein: the movable handle (3) is close to the lower surface of one end of the nail bin shell (10) and is provided with a second clamping groove (20), the second clamping block (21) is clamped in the second clamping groove (20), the second clamping block (21) is far away from a nail pushing plate (22) fixedly connected with the end part of the second clamping groove (20), the nail pushing plate (22) is far away from the end part of the second clamping block (21) and is provided with an extrusion groove (23), and the lower ends of the two sides of the extrusion groove (23) are arranged to be chamfers.

6. The stapler with cartridge replacement function according to claim 5, wherein: the nail pushing plate is characterized in that limiting blocks (24) are fixedly arranged on two sides of the nail pushing plate (22), the limiting blocks (24) are connected in limiting grooves (25) in a clamped mode, the limiting grooves (25) are arranged on the inner side of the shell (1), the limiting blocks (24) are far away from one side of the second clamping block (21) and are fixedly connected with second springs (26), and the second springs (26) are located inside the limiting grooves (25).

7. The stapler with cartridge replacement function according to claim 1, wherein: the bottom of the nail bin shell (10) is symmetrically provided with clamping blocks (27) along the center line, and the distance between the two clamping blocks (27) is smaller than the width of a sewing nail (17).