CN112244921B

CN112244921B - Anastomat

Info

Publication number: CN112244921B
Application number: CN202011259172.2A
Authority: CN
Inventors: 冯文红
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2023-08-04
Anticipated expiration: 2040-11-11
Also published as: CN112244921A

Abstract

The embodiment of the invention provides an anastomat, and relates to the technical field of medical appliances. The anastomat comprises a first connecting rod, a second connecting rod, an anastomat body and a stapling and cutting assembly. The second connecting rod is sleeved outside the first connecting rod. The anastomat body is sleeved outside the second connecting rod. An end of the stapler body in the axial direction is connected to the stapling and cutting assembly. A trigger is arranged outside the anastomat body and perpendicular to the axis direction. When the anastomat is in a cutting working state, the first connecting rod is rotated, the first connecting rod is pressed, the second connecting rod is rotated, and the trigger is pulled, so that the stapling and cutting assembly is driven to staple and cut. The anastomosis mode is completed once, no side incision is formed, no secondary ischemia area is formed, the tissue auxiliary injury is reduced, and the anastomotic stoma leakage is reduced. The operation is simple.

Description

Anastomat

Technical Field

The invention relates to the field of medical instruments, in particular to an anastomat.

Background

The existing anastomat which is used in clinic and is used for replacing manual cavity organ connection such as esophagus, stomach, intestinal tract and the like is an everting ring-shaped anastomat, and the everting ring-shaped anastomat is also patented; there are also straight line cutting staplers used to complete "inverted T" anastomosis. The following drawbacks exist: increasing the chance of gastrointestinal damage and surgical field pollution; the anastomotic wound of the circular anastomat is positioned in the lumen, the turned-in tissue is more (the outer diameter of the circular anastomat for the neck is 21mm and 25mm, the inner diameter of the lumen after the anastomosis is about 12.4mm and 16.4mm respectively), and bleeding, foreign matter residue and anastomotic fistula are easy to cause in recent times; the long-term intra-cavity anastomotic ring is scarred, the lumen smoothness is reduced, the lumen is narrowed, and the like.

Disclosure of Invention

The object of the present invention is to provide a stapler which ameliorates the above-mentioned problems. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:

the embodiment of the invention provides an anastomat, which comprises a first connecting rod, a second connecting rod, an anastomat body and a stapling and cutting assembly. The second connecting rod is sleeved outside the first connecting rod. The anastomat body is sleeved outside the second connecting rod. An end of the stapler body in the axial direction is connected to the stapling and cutting assembly. A trigger is arranged outside the anastomat body and perpendicular to the axis direction. When the anastomat is in a cutting working state, the first connecting rod is rotated, the first connecting rod is pressed, the second connecting rod is rotated, and the trigger is pulled, so that the stapling and cutting assembly is driven to staple and cut.

Further, the stapler also comprises a trigger fixing piece and a handle. The trigger is arranged outside the anastomat body through the trigger fixing piece. The handle is arranged outside the anastomat body and is arranged in parallel with the trigger at a first preset distance.

Further, the anastomat further comprises a moving chute and an extruding piece. The movable chute is arranged in the second connecting rod. The extrusion piece is arranged in the anastomat body and is connected with the stapling and cutting assembly.

Further, the extrusion includes a first portion, a second portion, a third portion, and a first extrusion connection ring connected in sequence. The first portion is connected with the movable chute. The first part, the second part, the third part and the first extrusion connecting ring are all sleeved outside the second connecting rod and are positioned in the anastomat body. The stapling and cutting assembly includes a first stapling component and a first cutting component. The anastomat further comprises an extrusion piece connecting rod, a second extrusion connecting ring, a third extrusion connecting ring, a connecting rod fixing piece, a third connecting rod, a fourth connecting rod, a fifth connecting rod, a sixth connecting rod, a first main buckling piece, a first auxiliary buckling piece, a second main buckling piece and a second auxiliary buckling piece. One end of the extrusion connecting rod is connected with the second part, and the other end of the extrusion connecting rod is abutted with the second extrusion connecting ring through the first extrusion connecting ring. The first extrusion connecting ring is sleeved outside the second connecting rod and is positioned in the anastomat body. The second extrusion connecting ring and the third extrusion connecting ring are sleeved outside the first connecting rod and are positioned in the first nailing component. The third extrusion connecting ring is sequentially connected with the connecting rod fixing piece and the third connecting rod. The third connecting rod is connected with the first stapling component. One end of the fourth connecting rod is abutted with the surface of the second connecting rod, and the other end of the fourth connecting rod is connected with the first cutting component. One end of the fifth connecting rod is connected with the first extrusion connecting ring, and the other end of the fifth connecting rod is connected with the first stapling component. One end of the sixth connecting rod is connected with the second extrusion connecting ring, and the other end of the sixth connecting rod is connected with the first stapling component. The first main buckling piece is arranged at one end of the first nailing component, and the first auxiliary buckling piece is arranged at one end of the first cutting component close to the direction of the first main buckling piece, so that the first main buckling piece is buckled with the first auxiliary buckling piece. The second main buckling piece is arranged at one end of the third connecting rod, the second auxiliary buckling piece is arranged at one end of the fourth connecting rod close to the direction of the third connecting rod, so that the second main buckling piece is connected with the second extrusion connecting ring and the third extrusion connecting ring, and a rotatable part controlled to rotate by the first connecting rod is formed.

Further, the anastomat further comprises a seventh connecting rod, an eighth connecting rod, a third main buckling piece, a third auxiliary buckling piece, a fourth main buckling piece, a fourth auxiliary buckling piece, a fifth main buckling piece and a fifth auxiliary buckling piece. The stapling and cutting assembly also includes a second stapling component and a second cutting component. One end of the seventh connecting rod is connected with the end part of the first connecting rod, and the other end of the seventh connecting rod is connected with the second nailing component. One end of the eighth connecting rod is connected with the end part of the second connecting rod, and the other end of the eighth connecting rod is connected with the second cutting component. The seventh connecting rod and the eighth connecting rod are arranged in parallel at a second preset distance. The third main buckling piece is arranged at the end part of the first connecting rod close to the direction of the seventh connecting rod, and the third auxiliary buckling piece is arranged at the end part of the second connecting rod close to the direction of the third main buckling piece, so that the third main buckling piece is buckled with the third auxiliary buckling piece. The fourth main buckling piece is arranged at the end part of the seventh connecting rod close to the direction of the second nailing component, and the fourth auxiliary buckling piece is arranged at the end part of the eighth connecting rod in the direction of the fourth main buckling piece, so that the fourth main buckling piece is buckled with the fourth auxiliary buckling piece. The fifth main buckling piece is arranged at the end part of the second nailing component, which is far away from the seventh connecting rod, and the fifth auxiliary buckling piece is arranged at the end part of the second cutting component, which is far away from the eighth connecting rod, so that the fifth main buckling piece is buckled with the fifth auxiliary buckling piece.

Further, the first connecting rod, the seventh connecting rod, the third main fastening member, the fourth main fastening member, and the second nailing member are integrally formed.

Further, the second connecting rod, the eighth connecting rod, the third pair of fasteners, the fourth pair of fasteners and the second cutting member are integrally formed.

Further, the first portion, the second portion, the third portion and the first extrusion connecting ring are integrally formed. The first extrusion connecting ring, the fifth connecting rod, the first stapling component and the first cutting component are integrally formed. The second extrusion connecting ring, the sixth connecting rod, the first stapling component and the first cutting component are integrally formed.

Further, the stapler further comprises an elastic component. The elastic component is sleeved outside the first connecting rod, and two ends of the elastic component are respectively abutted with the second extrusion connecting ring and the third extrusion connecting ring.

Further, the elastic member is a spring.

The embodiment of the invention provides an anastomat, which comprises a first connecting rod, a second connecting rod, an anastomat body and a stapling and cutting assembly. The second connecting rod is sleeved outside the first connecting rod. The anastomat body is sleeved outside the second connecting rod. An end of the stapler body in the axial direction is connected to the stapling and cutting assembly. A trigger is arranged outside the anastomat body and perpendicular to the axis direction. When the anastomat is in a cutting working state, the first connecting rod is rotated, the first connecting rod is pressed, the second connecting rod is rotated, and the trigger is pulled, so that the stapling and cutting assembly is driven to staple and cut. The anastomosis mode is completed once, no side incision is formed, no secondary ischemia area is formed, the tissue auxiliary injury is reduced, and the anastomotic stoma leakage is reduced. The operation is simple.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an application environment of a stapler according to an embodiment of the present invention;

FIG. 2 is a schematic view of a stapler according to an embodiment of the present invention;

FIG. 3 is a schematic view of another stapler according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a stapler according to an embodiment of the present invention;

FIG. 5 is a second schematic partial view of a stapler according to an embodiment of the present invention;

FIG. 6 is a schematic view of a stapling and severing assembly of a stapler according to an embodiment of the present invention;

FIG. 7 is a schematic view of a stapling mode of a stapler according to an embodiment of the present invention;

fig. 8 is a schematic view of the removal of elastic rubber of the stapler according to an embodiment of the present invention.

In the figure: 10-anastomat; 11-a first connecting rod; 12-a second connecting rod; 13-stapler body; 14-stapling the cutting assembly; 141-a first stapling component; 142-a first cutting member; 143-a second stapling component; 143 a-a second stapling group; 144-a second cutting member; 15-a trigger; 16-trigger mount; 17-handle; 18-moving the chute; 19-an extrusion; 191-first part; 192-a second portion; 193-third section; 194-first press out connection ring; 20-extrudate connecting rod; 21-a second extruded connecting ring; 22-third extrusion of the connecting ring; 23-a connecting rod fixing piece; 23 a-a fixed connecting rod; 24-a third connecting rod; 25-fourth connecting rod; 26-a fifth connecting rod; 27-sixth connecting rod; 28-a first primary fastener; 28 a-a first fastener; 29-a first pair of fasteners; 30-a second primary fastener; 30 a-a second fastener; 31-a second secondary fastener; 32-seventh connecting rod; 33-eighth connecting rod; 34-a third primary fastener; 34 a-a third fastener; 35-a third secondary fastener; 36-fourth primary fasteners; 36 a-fourth fastener; 37-fourth pair of fasteners; 38-a fifth primary fastener; 38 a-fifth fastener; 39-a fifth pair of fasteners; 40-elastic member.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "vertical", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the term "vertical" and the like do not denote that the component is required to be absolutely horizontal or overhanging, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or electrically connected in one piece; can be mechanically and electrically connected or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-5, an embodiment of the present invention provides a stapler 10, which may include a first connecting rod 11, a second connecting rod 12, a stapler body 13, and a stapling and severing assembly 14. The second connecting rod 12 is sleeved outside the first connecting rod 11. The anastomat body 13 is sleeved outside the second connecting rod 12. The end of the stapler body 13 in the axial direction is connected to the stapling and cutting assembly 14. A trigger 15 is arranged outside the anastomat body 13 and perpendicular to the axial direction. When the stapler 10 is in a cutting operation state, the first connecting rod 11 is rotated, the first connecting rod 11 is pressed, the second connecting rod 12 is rotated, and the trigger 15 is pulled, so as to drive the stapling and cutting assembly 14 to staple and cut.

Further, the stapler 10 can also include a trigger mount 16, a handle 17. The trigger 15 is arranged outside the stapler body 13 by the trigger fixing member 16. The handle 17 is disposed outside the stapler body 13 and is disposed in parallel with the trigger 15 at a first predetermined distance.

Further, the stapler 10 may further comprise a moving chute 18, an extruder 19. The moving chute 18 is disposed in the second connecting rod 12. The punch 19 is disposed within the stapler body 13 and is connected to the stapling and cutting assembly 14.

Further, the extruder 19 may include a first portion 191, a second portion 192, a third portion 193, and a first extruder connecting ring 194 that are connected in sequence. The first portion 191 is connected to the moving chute 18. The first portion 191, the second portion 192, the third portion 193, and the first extrusion connection ring 194 are all sleeved outside the second connection rod 12 and are located in the stapler body 13. The stapling and cutting assembly 14 may include a first stapling component 141 and a first cutting component 142. The stapler 10 can further include an extruder connecting rod 20, a second extruder connecting ring 21, a third extruder connecting ring 22, a connecting rod fixture 23, a third connecting rod 24, a fourth connecting rod 25, a fifth connecting rod 26, a sixth connecting rod 27, a first primary fastener 28, a first secondary fastener 29, a second primary fastener 30, and a second secondary fastener 31. One end of the extrusion connecting rod 20 is connected with the second portion 192, and the other end of the extrusion connecting rod 20 abuts against the second extrusion connecting ring 21 through the first extrusion connecting ring 194. The first extrusion connection ring 194 is sleeved outside the second connection rod 12 and is located in the stapler body 13. The second extrusion connecting ring 21 and the third extrusion connecting ring 22 are both sleeved outside the first connecting rod 11 and located in the first nailing component 141. The third extrusion connecting ring 22 is connected with the connecting rod fixing piece 23 and the third connecting rod 24 in sequence. The third connecting rod 24 is connected to the first stapling component 141. One end of the fourth connecting rod 25 abuts against the surface of the second connecting rod 12, and the other end of the fourth connecting rod 25 is connected to the first cutting member 142. One end of the fifth connecting rod 26 is connected to the first push-out connecting ring 194, and the other end of the fifth connecting rod 26 is connected to the first stapling component 141. One end of the sixth connecting rod 27 is connected to the second press-out connecting ring 21, and the other end of the sixth connecting rod 27 is connected to the first stapling member 141. The first main fastening component 28 is disposed at one end of the first nailing component 141, and the first auxiliary fastening component 29 is disposed at one end of the first cutting component 142 close to the first main fastening component 28, so that the first main fastening component 28 is fastened to the first auxiliary fastening component 29. The second main fastening component 30 is disposed at one end of the third connecting rod 24, and the second auxiliary fastening component 31 is disposed at one end of the fourth connecting rod 25 near the direction of the third connecting rod 24, so that the second main fastening component 30 is fastened to the second auxiliary fastening component 31. The link fixing member 23 is provided with a fixing link 23a. One end of the fixed connection rod 23a is connected to the third extrusion connection ring 22, and the other end is connected to the second main fastener 30 through the fixed connection rod 23a. The extrusion 19 is connected to a second extrusion connection ring 21 and a third extrusion connection ring 22, forming a rotatable part controlled in rotation by the first connection rod 11.

Further, the stapler 10 can further include a seventh connecting rod 32, an eighth connecting rod 33, a third primary clasp 34, a third secondary clasp 35, a fourth primary clasp 36, a fourth secondary clasp 37, a fifth primary clasp 38, and a fifth secondary clasp 39. The stapling and cutting assembly 14 further includes a second stapling component 143 and a second cutting component 144. One end of the seventh connecting rod 32 is connected to the end of the first connecting rod 11, and the other end of the seventh connecting rod 32 is connected to the second stapling member 143. One end of the eighth connecting rod 33 is connected to the end of the second connecting rod 12, and the other end of the eighth connecting rod 33 is connected to the second cutting member 144. The seventh connecting rod 32 and the eighth connecting rod 33 are disposed in parallel at a second predetermined distance. The third main fastening component 34 is disposed at an end of the first connecting rod 11 near the direction of the seventh connecting rod 32, and the third auxiliary fastening component 35 is disposed at an end of the second connecting rod 12 near the direction of the third main fastening component 34, so that the third main fastening component 34 is fastened to the third auxiliary fastening component 35. The fourth main fastening component 36 is disposed at an end of the seventh connecting rod 32 near the second nailing component 143, and the fourth auxiliary fastening component 37 is disposed at an end of the eighth connecting rod 33 near the fourth main fastening component 36, so that the fourth main fastening component 36 is fastened to the fourth auxiliary fastening component 37. The fifth main fastener 38 is disposed at an end of the second nailing component 143 away from the seventh connecting rod 32, and the fifth auxiliary fastener 39 is disposed at an end of the second cutting component 144 away from the eighth connecting rod 33, such that the fifth main fastener 38 is fastened to the fifth auxiliary fastener 39.

Further, the first connecting rod 11, the seventh connecting rod 32, the third main fastening member 34, the fourth main fastening member 36 and the second nailing member 143 are integrally formed.

Further, the second connecting rod 12, the eighth connecting rod 33, the third pair of fasteners 35, the fourth pair of fasteners 37, and the second cutting member 144 are integrally formed.

Further, the first portion 191, the second portion 192, the third portion 193, and the first extrusion connection ring 194 are integrally formed. The first extruding connecting ring 194, the fifth connecting rod 26, the first nailing member 141 and the first cutting member 142 are integrally formed. The second extruding connecting ring 21, the sixth connecting rod 27, the first nailing member 141 and the first cutting member 142 are integrally formed.

Further, the stapler 10 may further comprise an elastic member 40. The elastic member 40 is sleeved outside the first connecting rod 11, and two ends of the elastic member respectively abut against the second extrusion connecting ring 21 and the third extrusion connecting ring 22. In this embodiment, the elastic member 40 may be a spring.

Referring to fig. 6, fig. 6 (a) shows the staple stack outside, the base is next to the rubber ring, the staples pass through the rubber portion and engage the tissue (esophagus or stomach), and after completion, the rubber ring is in the tissue. In fig. 6 (b) and (c), the staple stack is outside, the staples pass through the rubber section, and conform to the tissue (esophagus or stomach), and after completion, the rubber ring is outside the tissue.

Referring to fig. 7, the stapling of the stapling and severing assembly 14 may be replaced with an absorbable staple that includes a staple and a staple having a toothed structure thereon. After the absorbable nail is nailed into the tissue, an operator can apply force to one side of the absorbable nail by taking the broken nail base as an acting point, so that the absorbable nail can be broken on the broken nail base.

The working principle of the anastomat 10 provided in this embodiment is as follows:

an operator makes an elliptic purse in advance, and then the stomach tube and the esophagus are respectively everted and sutured on the elliptic rubber ring. As shown in fig. 1, 2 and 3, the first connecting rod 11 is rotated, so that the third extruded connecting ring 22, the first nailing component 141, the third connecting rod 24, the seventh connecting rod 32 and the second nailing component 143 are rotated, the first connecting rod 11 is pressed, the first main fastening member 28 and the first auxiliary fastening member 29 are fastened to form a first fastening member 28a, the fifth main fastening member 38 and the fifth auxiliary fastening member 39 are fastened to form a fifth fastening member 38a, the second main fastening member 30 and the second auxiliary fastening member 31 are fastened to form a second fastening member 30a, the fourth main fastening member 36 and the fourth auxiliary fastening member 37 are fastened to form a fourth fastening member 36a, the connecting rod fixing member 23 is pulled in the direction of the first nailing component 141, the fixed connecting rod 23a is moved in the direction of the first nailing component 141, the third extruded connecting ring 22 is further separated from the first connecting rod 11, the second main fastening member 30 and the second auxiliary fastening member 31 are simultaneously locked to form a second fastening member 30a, the second fastening member 143 is rotated, the second connecting rod 12 is fastened to form a second fastening member 30a, the second fastening member 144 is pulled in the direction of the second main fastening member 144, the second auxiliary fastening member 144 is moved in the direction of the second nailing component 144 is cut fastening member 34a, and the third fastening member is shown in the direction of the third nailing component 34a is moved in the direction of the third fastening component 143 is shown in fig. 3. Pulling the trigger 15 pushes the second portion 192 through the third portion 193 and the extrusion connecting rod 20 to move the first extrusion connecting ring 194 and the second extrusion connecting ring 21 toward the third extrusion connecting ring 22, driving the fifth connecting rod 26 and the sixth connecting rod 27 to be stapled and cut, and after the cutting is completed, the elastic component 40 returns the fifth connecting rod 26 and the sixth connecting rod 27 to the original position. The second connecting rod 12 is reversely rotated so that the first nailing component 141 is far away from the second nailing group 143a, and the connecting rod fixing piece 23 is pulled towards the third extrusion connecting ring 22 to unlock the second buckling piece 30a, so that the second buckling piece 30a is separated into the second main buckling piece 30 and the second auxiliary buckling piece 31, and the first connecting rod 11 and the third extrusion connecting ring 22 are simultaneously locked. First connecting rod 11 is actuated to disengage first fastener 28a, second fastener 30a, fifth fastener 38a, and fourth fastener 36a, and then stapler 10 is withdrawn. As shown in fig. 8, D is elastic rubber, the esophageal end and the gastric end are cut, G is an anastomotic nail, F is an anastomotic ring, the scissors are cut along A, B, C, and D is taken down to complete suturing.

The invention realizes everting anastomosis, and the actual lumen after anastomosis reaches more than 2 cm; 2. the neck esophagus anastomosis opening and the esophagus shaft form an inclined plane of 45 degrees, so that a longitudinal cutting transverse seam is realized; 3. the anastomotic nail can be absorbed instead of the stapling mode, so that scar reaction is reduced; 4. the anastomosis mode is completed once, no side incision is formed, no secondary ischemia area is formed, the tissue side injury is reduced, and the anastomotic stoma leakage is reduced; 5. is closer to the physiological structure of the esophagus, and a blind road is not formed locally; 6. the distance between the free neck and the esophagus is short, the whole circumference is not needed to be free, and the anastomotic stoma has good blood supply; 7. because the anastomotic stoma forms an angle of about 45 degrees with the esophagus and the tubular stomach, the poor blood supply area of the small curve of the stomach can be more removed in the anastomosis process, and the blood supply of the anastomotic stoma is further improved; 8. the requirement on the length of the tubular stomach is small, and the size of the incision of the neck is not particularly required.

Embodiments of the present invention provide a stapler 10 that may include a first connecting rod 11, a second connecting rod 12, a stapler body 13, and a stapling and severing assembly 14. The second connecting rod 12 is sleeved outside the first connecting rod 11. The anastomat body 13 is sleeved outside the second connecting rod 12. The end of the stapler body 13 in the axial direction is connected to the stapling and cutting assembly 14. A trigger 15 is arranged outside the anastomat body 13 and perpendicular to the axial direction. When the stapler 10 is in a cutting operation state, the first connecting rod 11 is rotated, the first connecting rod 11 is pressed, the second connecting rod 12 is rotated, and the trigger 15 is pulled, so as to drive the stapling and cutting assembly 14 to staple and cut. The anastomosis mode is completed once, no side incision is formed, no secondary ischemia area is formed, the tissue auxiliary injury is reduced, and the anastomotic stoma leakage is reduced. The operation is simple.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The anastomat is characterized by comprising a first connecting rod, a second connecting rod, an anastomat body and a stapling and cutting assembly, wherein the second connecting rod is sleeved outside the first connecting rod, the anastomat body is sleeved outside the second connecting rod, the end part of the anastomat body along the axial direction is connected with the stapling and cutting assembly, a trigger is arranged outside the anastomat body and perpendicular to the axial direction, and when the anastomat is in a cutting working state, the first connecting rod is rotated, the first connecting rod is pressed, the second connecting rod is rotated, and the trigger is pulled to drive the stapling and cutting assembly to staple and cut;

the anastomat also comprises a movable chute and an extrusion piece, wherein the movable chute is arranged in the second connecting rod, and the extrusion piece is arranged in the anastomat body and is connected with the stapling and cutting assembly;

the extruding piece comprises a first part, a second part, a third part and a first extruding connecting ring which are sequentially connected, the first part is connected with the movable chute, the first part, the second part, the third part and the first extruding connecting ring are sleeved outside the second connecting rod and positioned in the anastomat body, the stapling and cutting assembly comprises a first stapling component and a first cutting component, the anastomat further comprises an extruding piece connecting rod, a second extruding connecting ring, a third extruding connecting ring, a connecting rod fixing piece, a third connecting rod, a fourth connecting rod, a fifth connecting rod, a sixth connecting rod, a first main buckling piece, a first auxiliary buckling piece, a second main buckling piece and a second auxiliary buckling piece, one end of the extruding piece connecting rod is connected with the second part, the other end of the extruding piece connecting rod is abutted with the second extruding connecting ring through the first extruding connecting ring, the first extruding connecting ring is sleeved outside the second connecting rod and positioned in the anastomat body, the third extruding connecting ring is sleeved outside the second connecting rod and positioned in the first extruding connecting ring, the third extruding connecting ring is connected with the first connecting rod, the first auxiliary buckling piece is abutted with the first connecting ring, the other end of the first extruding piece connecting rod is connected with the fifth connecting rod, the first auxiliary buckling piece is abutted with the first connecting rod, the first auxiliary buckling piece is connected with the other end of the first extruding connecting rod, the first auxiliary buckling piece is abutted with the first connecting rod, the other end of the sixth connecting rod is connected with the first nailing component, the first main buckling piece is arranged at one end of the first nailing component, the first auxiliary buckling piece is arranged at one end of the first cutting component close to the direction of the first main buckling piece, so that the first main buckling piece is buckled with the first auxiliary buckling piece, the second main buckling piece is arranged at one end of the third connecting rod, the second auxiliary buckling piece is arranged at one end of the fourth connecting rod close to the direction of the third connecting rod, so that the second main buckling piece is connected with the second auxiliary buckling piece, and the pressing piece is connected with the second pressing connecting ring and the third pressing connecting ring to form a rotatable part controlled to rotate by the first connecting rod;

the anastomat further comprises a seventh connecting rod, an eighth connecting rod, a third main buckling piece, a third auxiliary buckling piece, a fourth main buckling piece, a fourth auxiliary buckling piece, a fifth main buckling piece and a fifth auxiliary buckling piece, the nailing and cutting assembly further comprises a second nailing component and a second cutting component, one end of the seventh connecting rod is connected with the end part of the first connecting rod, the other end of the seventh connecting rod is connected with the second nailing component, one end of the eighth connecting rod is connected with the end part of the second connecting rod, the other end of the eighth connecting rod is connected with the second cutting component, the seventh connecting rod and the eighth connecting rod are arranged in parallel at intervals of a second preset distance, the third main buckling piece is arranged at the end part of the first connecting rod close to the direction of the third main buckling piece, the third auxiliary buckling piece is arranged at the end part of the second connecting rod close to the direction of the third main buckling piece, the third auxiliary buckling piece is buckled at the end part of the third auxiliary buckling piece, the fourth main buckling piece is arranged at the end part close to the fourth main buckling piece, the fourth auxiliary buckling piece is arranged at the end part of the fifth main buckling piece, the fifth main buckling piece is far away from the end part of the fifth main buckling piece, and the fifth auxiliary buckling piece is arranged at the end part of the fifth main buckling piece.

2. The stapler of claim 1, further comprising a trigger mount, a handle disposed outside the stapler body through the trigger mount, the handle disposed outside the stapler body and disposed parallel to the trigger at a first predetermined distance.

3. The stapler of claim 1, wherein the first connecting rod, the seventh connecting rod, the third primary fastener, the fourth primary fastener, and the second stapling component are integrally formed.

4. The stapler of claim 1, wherein the second connecting rod, the eighth connecting rod, the third pair of fasteners, the fourth pair of fasteners, and the second cutting member are integrally formed.

5. The stapler of claim 1, wherein the first portion, the second portion, the third portion, and the first extruded connecting ring are integrally formed, the first extruded connecting ring, the fifth connecting rod, the first stapling component, and the first cutting component are integrally formed, and the second extruded connecting ring, the sixth connecting rod, the first stapling component, and the first cutting component are integrally formed.

6. The anastomat according to claim 1, further comprising an elastic member sleeved outside the first connecting rod, and having two ends respectively abutted against the second extrusion connecting ring and the third extrusion connecting ring.

7. The stapler of claim 6, wherein the resilient member is a spring.