CN113116442B

CN113116442B - Anti-drop nail anastomat for intestinal suture

Info

Publication number: CN113116442B
Application number: CN202110386208.1A
Authority: CN
Inventors: 陆坚; 曹锐
Original assignee: Suzhou Frankenman Medical Equipment Co Ltd
Current assignee: Suzhou Frankenman Medical Equipment Co Ltd
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2022-04-05
Anticipated expiration: 2041-04-12
Also published as: CN113116442A

Abstract

The invention discloses an anti-nail-dropping anastomat for intestinal suture, which comprises a gun shell, wherein a percussion device is arranged in the gun shell, one end of the percussion device is fixedly provided with a push cylinder, a fixed rod is arranged in the push cylinder, the center of the far end of the fixed rod is provided with a limit hole, one end of the fixed rod, which is close to the limit hole, is provided with a nail pushing table, the middle of one side of the nail pushing table is provided with a push knife spring in a surrounding manner, the other end of the push knife spring is fixedly provided with a first push plate, the far end of the nail pushing table is provided with a plurality of nail pushing rods in a surrounding manner, the other side of the first push plate is fixedly provided with a nail bin, the inner wall of the nail bin is provided with two sliding chutes, a fixed plate is arranged in the nail bin, one side of the nail bin, which is far away from the first push plate, is fixedly provided with an annular cutter, the anastomat can prevent suturing nails from dropping out of the nail from a nail outlet hole of the nail bin, and avoid the condition that the suturing holes leak of a suturing opening is caused by the dropping of the suturing nails, reduce the condition of secondary burst of the wound after the operation and is beneficial to the postoperative recovery.

Description

Anti-drop nail anastomat for intestinal suture

Technical Field

The invention relates to the technical field of anastomats, in particular to an anti-drop stapler for intestinal suture.

Background

The anastomat is the first stapler in the world and is used for gastrointestinal anastomosis for nearly a century, and the tube-type anastomat is not widely used for gastrointestinal surgery until 1978. Generally, the anastomat is divided into a disposable anastomat or a multi-use anastomat, an imported anastomat or a domestic anastomat. 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. The intestinal anastomat is used for rectum cancer operation, and has the advantages that the anastomat is convenient to use and the application range of the operation can be enlarged due to the fact that a pelvic cavity is difficult to coincide with the intestinal tract.

Although the degree of difficulty that current anastomat can be very big reduction operation, nevertheless all have the problem of falling the nail, the nail of sewing up can be released out the nail mouth and carry out the in-process of sewing up and drop, also can drop in nail storehouse, break away from the position that corresponds out the nail mouth, whichever kind of nail that falls, all can appear the condition that the nail lacked to the part that falls the nail to lead to sewing up the mouth and not sewing up completely, lead to the postoperative wound bigger than normal, increase the condition that postoperative wound secondary collapsed, be unfavorable for the postoperative to resume.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the anti-drop staple anastomat for intestinal suture, which has the advantages of preventing a suture staple from dropping, avoiding leak, being beneficial to postoperative recovery and the like, and solves the problems of leak existing in the process of dropping and suturing and secondary crack of an postoperative wound.

(II) technical scheme

In order to solve the technical problems of loopholes existing in nail dropping and sewing and secondary rupture of wounds after operation, the invention provides the following technical scheme:

the utility model provides an intestinal is sewed up and is used anticreep nail anastomat, includes the rifle shell, be provided with trigger device in the rifle shell, the fixed push cylinder that is provided with of one end of trigger device, be provided with the dead lever in the push cylinder, spacing hole has been seted up at the distal end center of dead lever, the dead lever is close to the one end in spacing hole is provided with the nail pushing table, it is provided with the push broach spring to encircle in the middle of one side of nail pushing table, the fixed first push pedal that is provided with of the other end of push broach spring, the distal end of nail pushing table encircles and is provided with a plurality of nail pushing rods.

Preferably, a nail bin is fixedly arranged on the other side of the first push plate, two sliding grooves are formed in the inner wall of the nail bin, a fixing plate is arranged in the nail bin, an annular cutter is fixedly arranged on one side, away from the first push plate, of the nail bin, a plurality of nail outlet holes are formed in the outer portion of the annular cutter, a telescopic plate is arranged at the outer portion, close to the annular cutter, of one end of the nail bin, an installation rod penetrates through the center of the nail bin, a nail anvil is fixedly arranged at the far end of the installation rod, the nail anvil is hemispherical, a plurality of nail grooves are formed in one side of the plane of the nail anvil in a surrounding mode, and annular cutter grooves are fixedly formed in the inner sides of the nail grooves.

Preferably, the triggering device comprises a pushing block, a sliding rail penetrates through the pushing block, first transmission rods are movably arranged on two sides of the pushing block, a second transmission rod is movably arranged at the other end of the first transmission rod, a fixed block is movably arranged at the other end of the second transmission rod, the fixed block is fixed to the sliding rail through welding, and a triggering block is arranged below a contact point of the first transmission rod and the second transmission rod.

Preferably, the nail pushing table comprises a fixing ring, one side of the fixing ring is provided with four fixing columns in a surrounding mode, the number of the fixing columns is four, the far end of each fixing column is fixedly provided with a pushing ring, the center of each pushing ring is fixedly provided with a second pushing plate, sliding blocks are fixedly arranged on two sides of each pushing ring, and the sliding blocks are located in the sliding grooves.

Preferably, the trigger block is movably arranged at the bottom end of the gun shell, the push block and the push barrel are fixed by welding, the slide rail and the gun shell are fixed by welding, the fixed rod and the gun shell are fixed by welding, and the mounting rod sequentially penetrates through the nail bin, the first push plate, the second push plate and the limiting hole.

Preferably, a limiting groove is formed in one side of the limiting hole, fixing grooves are formed in two sides of the limiting hole and in a direction perpendicular to a connecting line of the limiting groove and the circle center of the limiting hole, and the positions of the nail bin, the first push plate and the second push plate, which correspond to the limiting groove, are provided with the same limiting groove.

Preferably, the fixed plate comprises a bottom plate, the position of the bottom plate corresponding to the nail outlet hole is fixedly provided with a limiting frame, a thimble hole is formed in the center of the limiting frame, the size of the thimble hole is smaller than that of the limiting frame, and the fixed plate is fixedly connected with the nail bin through a limiting rod.

Preferably, the nail pushing rod, the nail outlet holes, the limiting frame, the thimble holes and the nail groove are in one-to-one correspondence in position, the nail pushing rod is consistent with the thimble holes in size, and the nail outlet holes are staggered mutually.

Preferably, the expansion plate includes the stiff end, the distal end endotheca of stiff end is equipped with the expansion cover, the expansion cover with connect through rhombus paper frame between the stiff end, the material of expansion plate is south Asia PP synthetic paper.

Preferably, the fixed arch that is provided with in centre of installation pole, the near-end internal fixation of installation pole is provided with the sheet metal, the near-end both sides of sheet metal are all fixed and are provided with the spring, two the top of spring is all fixed and is provided with three hornblocks, the near-end of three hornblocks with the near-end of installation pole carries out swing joint through the hub connection.

(III) advantageous effects

Compared with the prior art, the invention provides the anti-drop nail stapler for intestinal suture, which has the following beneficial effects:

1. this intestinal is sewed up and is used anticreep nail anastomat, the distal end endotheca through the stiff end of expansion plate is equipped with flexible cover, be connected through diamond-shaped paper frame between flexible cover and the stiff end, be located the expansion plate contact tissue surface on nail storehouse surface, thereby the top atress of flexible cover extrudees diamond-shaped paper frame, thereby make flexible cover pressed in the stiff end, thereby can not obstruct the gos forward of nail storehouse, make the region between nail storehouse and the nail anvil covered by the complete cage of expansion plate simultaneously, prevent to sew up the nail and drop to the human body in the nail hole of play of nail storehouse.

2. This intestinal is sewed up and is used anticreep nail anastomat corresponds the position in nail hole through the bottom plate of fixed plate and all fixes and be provided with spacing frame to can prevent to sew up the nail and drop original position in nail storehouse, reduce the waste of sewing up the nail, also avoid simultaneously when sewing up owing to sew up the nail and leak the condition of sewing up owing to the seam mouthful that leads to that drops in nail storehouse leaks the condition of sewing up, reducible postoperative wound secondary condition of bursting apart.

3. This intestinal is sewed up and is used anticreep nail anastomat through the shape that the hole of appearing arranging, and the ring region that will cover is totally closed to make any straight line from sewing up the regional centre of a circle and can't avoid the sewing nail, and then make to sew up more complete, be favorable to the postoperative to resume.

4. The anti-nail-falling anastomat for intestinal suture is characterized in that an installation rod is aligned to a limiting hole, a triangular block enters a limiting groove, then the installation rod rotates by ninety degrees to enable a fixing protrusion to pass through a far end of a nail bin, a first push plate, a second push plate and a fixing rod, the triangular block is extruded to push a spring, the spring restores the original length after passing through the limiting hole, so that the triangular block is reset, the installation rod only can pass through the far end of the nail bin, the first push plate, the second push plate and the fixing rod and cannot return, when the installation rod drives the triangular block to enter the fixing rod, the installation rod is rotated, so that the triangular block falls into the fixing groove, the nail groove on the surface of a nail anvil corresponds to the positions of the nail pushing rod, the nail outlet hole, the limiting frame and the nail ejecting hole one by one way, the nail anvil can only move forwards by one way through the spring and the triangular block, and the triangular block is responsible for the way of retreating, the nail anvil is prevented from falling off, the fixing bulge is finally stopped in the limiting groove, and the triangular block is finally stopped in the fixing groove, so that the nail anvil can be fixed, and the nail anvil is prevented from falling off and slipping.

5. This intestinal is sewed up and is used anticreep nail anastomat is south Asia PP synthetic paper through the material of expansion plate to can be with human tissue direct contact, waterproof, grease proofing, chemical protection, the environmental protection is recoverable, even burn the processing, can not produce toxic gas, practice thrift a large amount of forest resources, the shelf life is long, mothproof, anticorrosive, durable, intensity is big, prevent pricking hole, tear is especially horizontal, wear-resisting, folding endurance is good, economical and practical is favorable to environmental protection.

6. This intestinal is sewed up and is used anticreep nail anastomat, through push away the nail platform and advance in the direction of nail anvil under the cooperation of spout and slider, and then promote the nail storehouse again through the push-type broach spring and move toward the distal end, prevent to cause the dislocation of nail anvil and nail storehouse to slide at the in-process that the cutter promoted, thereby make the push away the nail pole, go out the nail hole, spacing frame, the position one-to-one of thimble hole and nail groove, and then make the sewing process go on smoothly, the unable circumstances that leads to unable nail of going out in pushing away the nail pole in the spacing frame of liftout can not appear.

Drawings

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

FIG. 2 is a schematic diagram of the overall explosion of the present invention;

FIG. 3 is an end exploded view of the present invention;

FIG. 4 is an enlarged view taken at A of FIG. 3 in accordance with the present invention;

FIG. 5 is an end sectional view of the present invention;

FIG. 6 is a schematic perspective view of the retractable plate of the present invention;

FIG. 7 is a perspective view of a fixing plate according to the present invention;

FIG. 8 is a front view of a staple cartridge of the present invention;

FIG. 9 is a perspective view of an anvil of the present invention;

FIG. 10 is a cross-sectional view of an anvil of the present invention;

FIG. 11 is a cross-sectional view of a staple cartridge of the present invention.

In the figure: 1. a gun housing; 2. a firing device; 201. a push block; 202. a slide rail; 203. a second transmission rod; 204. a fixed block; 205. a trigger block; 206. a first drive lever; 3. a push cylinder; 4. fixing the rod; 5. a limiting hole; 501. a limiting groove; 502. fixing grooves; 6. a nail pushing table; 601. a fixing ring; 602. fixing a column; 603. a push ring; 604. a second push plate; 605. a slider; 7. a push-type cutter spring; 8. a first push plate; 9. pushing the nail rod; 10. a staple cartridge; 11. a fixing plate; 1101. a base plate; 1102. a limiting frame; 1103. a thimble hole; 12. a ring-shaped cutter; 13. a retractable plate; 1301. a fixed end; 1302. a telescopic cover; 1303. a diamond-shaped paper frame; 14. mounting a rod; 15. a nail anvil; 16. a nail groove; 17. an annular knife slot; 18. a nail outlet hole; 19. a limiting rod; 20. a thin plate; 21. a spring; 22. a triangular block; 23. a fixed protrusion; 24. a chute.

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. 1-11, an anti-nail-dropping anastomat for intestinal suture comprises a gun shell 1, a percussion device 2 is arranged in the gun shell 1, a push cylinder 3 is fixedly arranged at one end of the percussion device 2, a fixed rod 4 is arranged in the push cylinder 3, a limit hole 5 is arranged at the center of the distal end of the fixed rod 4, a nail pushing table 6 is arranged at one end of the fixed rod 4 close to the limit hole 5, a push knife spring 7 is arranged around the middle of one side of the nail pushing table 6, a first push plate 8 is fixedly arranged at the other end of the push knife spring 7, a plurality of nail pushing rods 9 are arranged around the distal end of the nail pushing table 6, a nail bin 10 is fixedly arranged at the other side of the first push plate 8, two sliding grooves 24 are arranged on the inner wall of the nail bin 10, a fixed plate 11 is arranged in the nail bin 10, an annular cutter 12 is fixedly arranged at one side of the nail bin 9 far away from the first push plate 8, a plurality of nail-out holes 18 are arranged outside the annular cutter 12, a telescopic plate 13 is arranged at one end of the nail bin 10 close to the annular cutter 12, the center of the nail bin 10 is provided with a mounting rod 14 in a penetrating manner, the far end of the mounting rod 14 is fixedly provided with a nail anvil 15, the nail anvil 15 is hemispherical, one side of the plane of the nail anvil 15 is provided with a plurality of nail grooves 16 in a surrounding manner, and the inner sides of the nail grooves 16 are fixedly provided with annular knife grooves 17, so that the nail pushing table 6 can be pushed by the push cylinder 3 when in use, and then the first push plate 8 is pushed by the push knife spring 7 to push the nail bin 10 to move towards the far end, so that the annular knife 12 is pushed to enter the annular knife grooves 17, and then the target tissue can be cut off.

Further, the firing device 2 includes a pushing block 201, a sliding rail 202 is disposed in the pushing block 201 in a penetrating manner, first transmission rods 206 are movably disposed on two sides of the pushing block 201, a second transmission rod 203 is movably disposed at the other end of the first transmission rod 206, a fixed block 204 is movably disposed at the other end of the second transmission rod 203, the fixed block 204 and the sliding rail 202 are fixed by welding, and a trigger block 205 is disposed below a contact point of the first transmission rod 206 and the second transmission rod 203, so that the contact point of the first transmission rod 206 and the second transmission rod 203 can be extruded by moving the trigger block 205, an included angle between the first transmission rod 206 and the second transmission rod 203 is increased, and the fixed block 204 and the sliding rail 202 are fixed together, so that the first transmission rod 206 and the second transmission rod 203 can push the pushing block 201 to advance.

Further, the nail pushing table 6 comprises a fixing ring 601, four fixing columns 602 are arranged on one side of the fixing ring 601 in a surrounding manner, a pushing ring 603 is fixedly arranged at the far ends of the four fixing columns 602, a second pushing plate 604 is fixedly arranged at the center of the pushing ring 603, sliders 605 are fixedly arranged on two sides of the pushing ring 603, and the sliders 605 are located in the sliding grooves 24. In addition, when specifically using, the inboard of solid fixed ring 601 should be fixed and be provided with three reset spring, and three reset spring evenly fixes on the inner wall of solid fixed ring 601, and reset spring's the other end and the surface fixed connection of dead lever 4 to can be when the ejector sleeve 3 promotes nail pushing table 6, tensile reset spring, after the power of exerting on trigger block 205 disappears, the recovery spring can be with nail pushing table 6 pull back normal position, thereby reset.

Further, trigger block 205 activity sets up the bottom at rifle shell 1 to make trigger block 205 can reciprocate along the orbit that rifle shell 1 formed, pass through welded fastening between ejector pad 201 and the ejector sleeve 3, thereby accessible pull-up trigger block 205 makes ejector pad 201 promote the ejector sleeve 3 and move to the distal end, pass through welded fastening between slide rail 202 and the rifle shell 1, pass through welded fastening between dead lever 4 and the rifle shell 1, installation pole 14 runs through nail storehouse 10, first push pedal 8, second push pedal 604 and spacing hole 5 in proper order.

Further, a limit groove 501 is formed in one side of the limit hole 5, so that the triangular block 22 at the near end of the installation rod 14 can pass through, fixing grooves 502 are formed in two sides of the limit hole 5 and in the direction perpendicular to the connecting line of the limit groove 501 and the circle center of the limit hole 5, so that the two triangular blocks 22 can be clamped into the fixing grooves 502 through rotating the nail anvil 15, the nail anvil 15 is fixed, the same limit groove 501 is formed in the positions, corresponding to the limit groove 501, of the nail bin 10, the first push plate 8 and the second push plate 604, so that the triangular block 22 at the near end of the installation rod 14 and the fixing protrusion 23 can pass through.

Further, the fixing plate 11 includes a bottom plate 1101, the bottom plate 1101 is provided with a limit frame 1102 corresponding to the position of the nail outlet hole 18, so that the nail can be prevented from falling off the original position in the nail bin, a thimble hole 1103 is provided at the center of the limit frame 1102, so that the nail pushing rod 9 can penetrate through and prop up the nail, the size of the thimble hole 1103 is smaller than that of the limit frame 1102, and the fixing plate 11 is fixedly connected with the nail bin 10 through a limit rod 19.

Further, the positions of the nail pushing rod 9, the nail outlet holes 18, the limiting frame 1102, the nail ejecting hole 1103 and the nail groove 16 are in one-to-one correspondence, the nail pushing rod 9 and the nail ejecting hole 1103 are consistent in size, the nail outlet holes 18 are staggered, the covered circular ring area can be completely closed by the arrangement shape of the nail outlet holes 18, and therefore any straight line starting from the center of the sewing area cannot avoid sewing nails.

Further, expansion plate 13 includes stiff end 1301, the distal end endotheca of stiff end 1301 is equipped with expansion cover 1302, be connected through rhombus paper frame 1303 between expansion cover 1302 and the stiff end 1301, expansion plate 13's material is south Asia PP synthetic paper to can be with human tissue direct contact, waterproof, grease proofing, chemical proof, the environmental protection is recoverable, even burn the processing, can not produce poisonous gas, practice thrift a large amount of forest resources, the shelf life, moth-proofing, anticorrosive, durable, intensity is big, puncture-proof, tear-proof especially horizontal, wear-resisting, folding endurance is good.

Furthermore, a fixing protrusion 23 is fixedly arranged in the middle of the mounting rod 14, a thin plate 20 is fixedly arranged in the near end of the mounting rod 14, springs 21 are fixedly arranged on both sides of the near end of the thin plate 20, triangular blocks 22 are fixedly arranged on the top ends of the two springs 21, and the near ends of the triangular blocks 22 are movably connected with the near end of the mounting rod 14 through a shaft.

The working principle is as follows: when the mounting rod 14 is used, the hemispherical anvil 15 is sleeved into a section of intestinal canal to be sutured, the intestinal canal opening is tightened, the mounting rod 14 penetrates out of the intestinal canal opening, a user aligns the mounting rod 14 with the limiting hole 5, the triangular block 22 enters the limiting groove 501, then rotates ninety degrees to enable the fixing protrusion 23 to also penetrate through the limiting groove 501, the mounting rod 14 sequentially passes through the far end of the nail bin 10, the first push plate 8, the second push plate 604 and the fixing rod 4, the triangular block 22 is extruded to push the spring 21, the spring 21 restores to the original length after passing through the limiting hole 5, the triangular block 22 is restored, the mounting rod 14 only can pass through the far end of the nail bin 10, the first push plate 8, the second push plate 604 and the fixing rod 4 and cannot return, when the mounting rod 14 carries the triangular block 22 to enter the fixing rod 4, the mounting rod 14 is rotated, the triangular block 22 falls into the fixing groove 502, and at the moment, the nail groove 16 and the nail anvil 9 on the surface of the mounting rod 15, the first push plate 8, the second push plate 9, the second push plate, the fixing rod 4, the fixing rod and the fixing rod 4, The positions of the nail outlet holes 18, the limiting frame 1102 and the thimble hole 1103 are in one-to-one correspondence, a user holds the gun housing 1, the thumb is positioned above the gun housing 1, the rest four fingers are positioned at two sides of the bottom end of the gun housing 1, the gun housing 1 and the trigger block 205 are held, so that the contact point of the first transmission rod 206 and the second transmission rod 203 is extruded, the included angle between the first transmission rod 206 and the second transmission rod 203 is increased, the fixed block 204 and the slide rail 202 are fixed together, the first transmission rod 206 and the second transmission rod 203 push the push block 201 to advance, the push tube 3 pushes the nail pushing table 6, the nail pushing table 6 advances in the direction of the nail anvil 15 under the matching of the chute 24 and the slide block 605, the first push plate 8 is pushed by the push knife spring 7 to further push the nail bin 10 to move towards the far end, so that the annular knife 12 is pushed into the annular knife slot 17, the target tissue can be cut off, and the telescopic plate 13 positioned on the surface of the nail bin 10 is contacted with the surface of the tissue, the top end of the telescopic cover 1302 is stressed to press the diamond-shaped paper frame 1303, so that the telescopic cover 1302 is pressed into the fixed end 1301, the advance of the nail bin 10 is not hindered, meanwhile, the area between the nail bin 10 and the nail anvil 15 is completely covered by the telescopic plate 13, the staples are prevented from falling into the human body from the nail outlet holes 18 of the nail bin 10, at the moment, the push knife spring 7 is in a compressed state, and is continuously compressed under the condition that the included angle between the first transmission rod 206 and the second transmission rod 203 is continuously increased, so that the push tube 3 continuously pushes the nail pushing table 6 to advance, further, the nail pushing rod 9 enters the fixed plate 11, so that the staples in the limit frame 1102 are pushed, the staples come out of the nail outlet holes 18, penetrate the target tissue and are pushed into the nail groove 16 to be pressed, the staples are deformed and sewn, at the moment, the return spring is in an extended state, and when a user does not press the trigger block 205 any more, the power of applying to trigger block 205 disappears the back, and the recovery spring can pull back the normal position with pushing away nail platform 6 to reset the user and move the anastomat gently, make the anastomat slowly pass from the through-hole that is cut by annular cutter 12, take out the anastomat, avoid moving too violently and cause the secondary injury to the wound.

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 intestinal is sewed up with anticreep nail anastomat, includes gun shell (1), its characterized in that: a firing device (2) is arranged in the gun shell (1), a push barrel (3) is fixedly arranged at one end of the firing device (2), a fixed rod (4) is arranged in the push barrel (3), a limit hole (5) is formed in the center of the far end of the fixed rod (4), a nail pushing table (6) is arranged at one end, close to the limit hole (5), of the fixed rod (4), a push knife spring (7) is arranged in the middle of one side of the nail pushing table (6) in a surrounding mode, a first push plate (8) is fixedly arranged at the other end of the push knife spring (7), and a plurality of nail pushing rods (9) are arranged in the far end of the nail pushing table (6) in a surrounding mode;

a nail bin (10) is fixedly arranged on the other side of the first push plate (8), two sliding grooves (24) are formed in the inner wall of the nail bin (10), a fixing plate (11) is arranged in the nail bin (10), an annular cutter (12) is fixedly arranged on one side, far away from the first push plate (8), of the nail bin (10), and a plurality of nail outlet holes (18) are formed in the outer portion of the annular cutter (12); a telescopic plate (13) is arranged outside one end of the nail bin (10) close to the annular cutter (12), a mounting rod (14) penetrates through the center of the nail bin (10), the far end of the mounting rod (14) is fixedly provided with a nail anvil (15), the nail anvil (15) is hemispherical, one side of the plane of the nail anvil (15) is provided with a plurality of nail grooves (16) in a surrounding way, the inner side of the nail groove (16) is fixedly provided with an annular cutter groove (17), the fixing plate (11) comprises a bottom plate (1101), the bottom plate (1101) is fixedly provided with a limit frame (1102) corresponding to the nail outlet hole (18), a thimble hole (1103) is arranged at the center of the limiting frame (1102), the size of the thimble hole (1103) is smaller than that of the limiting frame (1102), the fixing plate (11) is fixedly connected with the nail bin (10) through a limiting rod (19); expansion plate (13) include stiff end (1301), the distal end endotheca of stiff end (1301) is equipped with flexible cover (1302), flexible cover (1302) with connect through rhombus paper frame (1303) between stiff end (1301), the material of expansion plate (13) is south Asia PP synthetic paper.

2. The anti-staple-dropping anastomat for intestinal suture according to claim 1, characterized in that: the percussion device (2) comprises a push block (201), a sliding rail (202) is arranged in the push block (201) in a penetrating mode, first transmission rods (206) are movably arranged on two sides of the push block (201), second transmission rods (203) are movably arranged at the other ends of the first transmission rods (206), fixed blocks (204) are movably arranged at the other ends of the second transmission rods (203), the fixed blocks (204) are fixedly welded to the sliding rail (202), and trigger blocks (205) are arranged below contact points of the first transmission rods (206) and the second transmission rods (203).

3. The anti-staple-dropping anastomat for intestinal suture according to claim 2, characterized in that: the nail pushing table (6) comprises a fixing ring (601), four fixing columns (602) are arranged on one side of the fixing ring (601) in a surrounding mode, a pushing ring (603) is fixedly arranged at the far end of each fixing column (602), a second pushing plate (604) is fixedly arranged at the center of each pushing ring (603), sliding blocks (605) are fixedly arranged on two sides of each pushing ring (603), and each sliding block (605) is located in the sliding groove (24).

4. The anti-staple-dropping anastomat for intestinal suture according to claim 3, characterized in that: trigger block (205) activity sets up the bottom of rifle shell (1), ejector pad (201) with through welded fastening between push cylinder (3), slide rail (202) with through welded fastening between rifle shell (1), dead lever (4) with through welded fastening between rifle shell (1), installation pole (14) run through in proper order nail storehouse (10), first push pedal (8), second push pedal (604) with spacing hole (5).

5. The anti-staple-dropping anastomat for intestinal suture according to claim 4, wherein: the nail bin is characterized in that a limiting groove (501) is formed in one side of the limiting hole (5), fixing grooves (502) are formed in the two sides of the limiting hole (5) and in the direction perpendicular to the connecting line of the limiting groove (501) and the circle center of the limiting hole (5), and the same limiting groove (501) is formed in the positions, corresponding to the limiting groove (501), of the nail bin (10), the first push plate (8) and the second push plate (604).

6. The anti-staple-dropping anastomat for intestinal suture according to claim 5, wherein: the nail pushing rod (9), the nail discharging holes (18), the limiting frame (1102), the thimble holes (1103) and the nail grooves (16) are in one-to-one correspondence in positions, the nail pushing rod (9) and the thimble holes (1103) are consistent in size, and the nail discharging holes (18) are staggered with one another.

7. The anti-staple-dropping anastomat for intestinal suture according to claim 6, characterized in that: the fixed arch (23) that is provided with in centre of installation pole (14), the near-end internal fixation of installation pole (14) is provided with sheet metal (20), the near-end both sides of sheet metal (20) are all fixed and are provided with spring (21), two the top of spring (21) is all fixed and is provided with three hornblocks (22), the near-end of three hornblocks (22) with the near-end of installation pole (14) carries out swing joint through the hub connection.