Ultra-low rectum cutting closer

Abstract

The invention discloses a rectum ultra-low position cutting closer, and relates to the technical field of closer, the rectum ultra-low position cutting closer comprises a rod cylinder, an actuator rotatably connected to one end of the rod cylinder and used for clamping tissue, and a steering mechanism controlling the actuator to rotate, an elastic push blade is arranged in the rod cylinder, and the push blade extends into the actuator; the steering mechanism comprises a shell connected to the other end of the rod barrel, a rope winder rotatably connected to the shell, a rope body and a clamping piece arranged on the shell, one end of the rope body penetrates through the rod barrel and then is connected to the actuator, the other end of the rope body is connected to the rope winder, and the rope winder can rotate around the axis of the rope winder to wind the rope body. The clamping piece can be clamped to the rope winder to limit winding and unwinding of the rope body, one end of the rope body is directly connected to the actuator, the actuator can swing by a large margin relative to the rod barrel, when the actuator swings by 90 degrees relative to the rod barrel, horizontal cutting of rectum tissue is better facilitated, and the operation difficulty of rectum low-position cutting and closing can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of closure devices, and in particular to a rectal ultra-low-position cutting closure device. Background Art

[0002] The stapler is the world's first suture device and has been used for gastrointestinal anastomosis for nearly a century. It is a medical device that replaces traditional manual sutures. Due to the development of modern science and technology and the improvement of manufacturing technology, the staplers currently used in clinical practice are reliable in quality, easy to use, tight, and of appropriate tightness. In particular, they have the advantages of fast suturing, simple operation, and few side effects and surgical complications.

[0003] A laparoscopic stapler is a surgical instrument that works by closing two corresponding actuators (usually including an anvil and jaws) to clamp tissue, and then pushing the metal suture staples in the stapler's stapler magazine into shape to suturing the tissues together.

[0004] During anal preservation surgery for rectal cancer, in the narrow space of the pelvic cavity, especially for obese patients, it is difficult to deploy and close the rectum with traditional intracavitary 45 or intracavitary 60 cutting and closing devices, or it is difficult to make a horizontal cut on the rectum, causing the cut end to be close to the lower edge of the rectal tumor, which can easily lead to postoperative tumor recurrence, or require multiple closing and cutting, which can easily lead to postoperative anastomotic leakage. If its length is shortened, the rotation angle is increased, and the tissue clamping and dragging energy are improved, the difficulty of the operation can be greatly reduced in the narrow pelvic space, the surgical efficiency can be improved, and the workload of the doctor can be reduced.

[0005] Therefore, how to provide a super-low rectal incision and closure device to reduce the difficulty of low rectal incision and closure surgery is an urgent problem to be solved by those skilled in the art. Summary of the invention

[0006] The purpose of the present invention is to provide a rectal ultra-low incision closure device to reduce the difficulty of the rectal low incision closure operation.

[0007] To achieve the above-mentioned purpose, the present invention provides a rectal ultra-low cutting closure device, comprising a rod barrel, an actuator rotatably connected to one end of the rod barrel for clamping tissue, and a steering mechanism for controlling the rotation of the actuator, an elastic push blade is provided in the rod barrel, and the push blade extends into the actuator, the steering mechanism comprises a shell connected to the other end of the rod barrel, a rope reel rotatably connected to the shell, a rope body having one end connected to the actuator after being passed through the rod barrel and the other end connected to the rope reel, and a clamping piece arranged on the shell, the rope reel can rotate around its own axis to wind the rope body, and the clamping piece can be clamped on the rope reel to limit the retraction and release of the rope body.

[0008] Preferably, the actuator includes a nail magazine and a nail anvil that are movably connected, the nail magazine is provided with a first boss, and the nail anvil is provided with a second boss that can engage with the first boss, so that a cavity for clamping tissue is formed when the nail magazine and the nail anvil are closed.

[0009] Preferably, the staple cartridge further comprises an opening section and two suturing sections located in the cavity, the two suturing sections being located on both sides of the opening section in the length direction of the staple cartridge, and the suturing section being a third protrusion having suturing staples disposed therein;

[0010] The staple holder also includes a first groove located in the cavity and corresponding to the third protrusion, and the suture staple can abut against the first groove to suture the tissue.

[0011] Preferably, the nail seat also includes a connecting part connected to the rod tube, the connecting part is provided with an axis body, the axis body is provided with a sleeve that can rotate around the axis body, the rod tube and the connecting part are provided with a first opening at the ends facing each other, the rope body is connected to the sleeve, and part of the rope body can be accommodated in the two first openings.

[0012] Preferably, the connecting portion is provided with a first rotating shaft adjacent to the first opening, the rod barrel is provided with a second rotating shaft adjacent to the first opening, the first rotating shaft and the second rotating shaft can abut against the rope body, and both the first rotating shaft and the second rotating shaft can rotate around their own axes.

[0013] Preferably, the connecting part also includes a front support plate, an upper support plate and a lower support plate parallel to each other, and there is a first gap between the upper support plate and the lower support plate for the push blade to pass through. The front support plate is located at the end of the connecting part and is spaced apart from the lower support plate to support and guide the push blade in a bent state.

[0014] Preferably, a joint piece is provided between the connecting portion and the rod barrel, one end of the joint piece is fixedly connected to the connecting portion, and the other end is rotatably connected to the rod barrel via a pin shaft;

[0015] The rod barrel comprises an arc-shaped end surface facing the connecting portion, and the joint component is provided with a guide surface adapted to the arc-shaped end surface to guide the joint component to rotate around the axis of the rotating shaft.

[0016] Preferably, it also includes a handle disposed at one end of the housing away from the barrel, and the housing can rotate around its own axis relative to the handle;

[0017] The handle includes:

[0018] A closer capable of controlling the closing of the nail magazine and the nail anvil;

[0019] The trigger is connected to one end of the push blade away from the nail support and can drive the other end of the push blade to move along the length direction of the nail support.

[0020] Preferably, the shell includes an upper cover and a lower cover capable of clamping the rod barrel, the rope reel includes a winding part for winding the rope body, an upper column located at the top of the winding part and extending to the outside of the upper cover, and a lower column located at the bottom of the winding part; the locking member is installed on the upper cover, and the locking member includes a pawl and an elastic member connected to each other.

[0021] Preferably, the steering mechanism further comprises:

[0022] A base is provided with a first slot hole adapted to fit the lower column, and the base is mounted on the lower cover;

[0023] The controller includes a ratchet and a steering knob. The ratchet and the steering knob are provided with a second slot hole adapted to the upper column so as to be sleeved on the outer periphery of the upper column and drive the rope reel to rotate synchronously. The ratchet and the steering knob are also provided with a gear groove. The ratchet pawl and the gear groove can be engaged to limit the rotation of the rope reel.

[0024] Compared with the above-mentioned background technology, the rectal ultra-low cutting closure device provided by the present invention includes a rod barrel, an actuator rotatably connected to one end of the rod barrel for clamping tissue, and a steering mechanism for controlling the rotation of the actuator. An elastic push blade is provided in the rod barrel, and the push blade extends into the interior of the actuator. The steering mechanism includes a shell connected to the other end of the rod barrel, a rope reel rotatably connected to the shell, a rope body having one end connected to the actuator after passing through the rod barrel and the other end connected to the rope reel, and a clamping piece arranged on the shell. The rope reel can rotate around its own axis to wind the rope body, and the clamping piece can be clamped on the rope reel to limit the retraction and release of the rope body.

[0025] Specifically, an elastic push blade is provided in the rod barrel, and the push blade extends to the inside of the actuator. One end of the rope body is connected to the actuator after being passed through the rod barrel, and the other end is connected to the rope reel. By reeling the rope body by the rope reel, the actuator can be rotated relative to the rod barrel. At the same time, the elastic push blade is synchronously bent at the same angle at the connection between the actuator and the rod barrel and has a tendency to restore deformation. When the locking piece is connected to the rope reel, the length of the rope body inside the rod barrel and the actuator is fixed, so that the rod barrel and the actuator are maintained in a balanced state. One end of the rope body is directly connected to the actuator, which can make the actuator swing relatively significantly relative to the rod barrel. When the actuator swings 90 degrees relative to the rod barrel, it is more conducive to horizontal cutting of the rectal tissue, which can reduce the difficulty of low-position rectal cutting and closure surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0027] FIG1 is a schematic diagram of the structure of a rectal ultra-low cutting closure device provided in an embodiment of the present invention;

[0028] FIG2 is a schematic diagram of the structure of the rectal ultra-low cutting and closing device provided by an embodiment of the present invention in a joint bending state;

[0029] FIG3 is a partial enlarged view of FIG1 ;

[0030] FIG4 is an exploded schematic diagram of FIG3 ;

[0031] FIG5 is a schematic structural diagram of a steering mechanism provided in an embodiment of the present invention;

[0032] FIG6 is an exploded schematic diagram of FIG5 ;

[0033] FIG7 is a schematic diagram of the structure of an actuator provided in an embodiment of the present invention;

[0034] FIG8 is a schematic diagram of the structure of a shaft sleeve provided in an embodiment of the present invention;

[0035] FIG9 is a schematic structural diagram of an anvil provided in an embodiment of the present invention;

[0036] FIG10 is a schematic diagram of the structure of a rope reel provided in an embodiment of the present invention;

[0037] FIG11 is a schematic diagram of the structure of the rectal ultra-low cutting closure device provided by an embodiment of the present invention when clamping tissue;

[0038] FIG. 12 is a schematic structural diagram of a rectal tube-type stapler provided in an embodiment of the present invention.

[0039] in:

[0040] 1. Nail magazine, 1-1, first boss, 1-2, third boss, 2, nail support, 2-1, first groove, 2-2, second boss, 2-3, front support plate, 2-4, upper support plate, 2-5, lower support plate, 2-6, first opening, 3, joint, 4, steering mechanism, 5, closer, 6, trigger, 7, shaft, 8, first rotating shaft, 9, rope body, 10, push blade, 11, pin shaft, 12, second rotating shaft, 13, bushing, 13-1, fixed circle hole, 13-2, fixing pin shaft hole, 14, rope reel, 14-1, first through hole, 14-2, winding part, 14-3, lower column, 14-4, upper column, 15, pawl, 16, ratchet, 17, elastic member, 18, steering knob, 19, positioning pin, 20, base, 21, lower cover, 22, upper cover, 23, tissue, 23-1, suture nail part, 23-2, opening part, 24, tubular stapler, 25, rod barrel, 26, handle. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0043] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by the terms "upper", "lower", "top", "bottom", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the position or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0044] The purpose of the present invention is to provide a rectal ultra-low incision closure device to reduce the difficulty of the rectal low incision closure operation.

[0045] Please refer to Figures 1 and 2. To achieve the above-mentioned purpose, the present invention provides a rectal ultra-low cutting closure device, including a rod barrel 25, an actuator rotatably connected to one end of the rod barrel 25 for clamping a tissue 23, and a steering mechanism 4 for controlling the rotation of the actuator. An elastic push blade 10 is provided in the rod barrel 25, and the push blade 10 extends into the actuator. The steering mechanism 4 includes a shell connected to the other end of the rod barrel 25, a rope reel 14 rotatably connected to the shell, a rope body 9 having one end connected to the actuator after being passed through the rod barrel 25 and the other end connected to the rope reel 14, and a clamping member provided on the shell. The rope reel 14 can rotate around its own axis to wind the rope body 9, and the clamping member can be clamped on the rope reel 14 to limit the retraction and release of the rope body 9.

[0046] An elastic push blade 10 is provided in the rod barrel 25, and the push blade 10 extends into the interior of the actuator. One end of the rope body 9 is connected to the actuator after being passed through the rod barrel 25, and the other end is connected to the rope reel 14. By reeling the rope body 9 by the rope reel 14, the actuator can be rotated relative to the rod barrel 25. At the same time, the elastic push blade 10 is synchronously bent at the same angle at the connection between the actuator and the rod barrel 25 and has a tendency to restore deformation. When the locking piece is connected to the rope reel 14, the length of the rope body 9 inside the rod barrel 25 and the actuator is fixed, so that the rod barrel 25 and the actuator are maintained in a balanced state. One end of the rope body 9 is directly connected to the actuator, which can make the actuator swing relatively significantly relative to the rod barrel 25. When the actuator swings 90° relative to the rod barrel 25, it is more conducive to horizontal cutting of the rectal tissue 23, which can reduce the difficulty of low-position rectal cutting and closure surgery.

[0047] The rectal ultra-low cutting closure device further comprises a handle 26 disposed at the end of the shell away from the rod tube 25, and the shell can rotate around its own axis relative to the handle 26; the handle 26 comprises a closure device 5, and the closure device 5 can control the closure of the actuator.

[0048] Please refer to Figures 7, 11 and 12. In this embodiment, the actuator includes a nail magazine 1 and a nail seat 2 that are movably connected. The nail magazine 1 and the nail seat 2 can be installed through a connecting piece. The nail magazine 1 is provided with a first boss 1-1, and the nail seat 2 is provided with a second boss 2-2 that can engage with the first boss 1-1, so that when the nail magazine 1 and the nail seat 2 are closed, a cavity for clamping the tissue 23 is formed. By closing the closer 5, the second boss 2-2 of the first boss 1-1 that is tooth-shaped or wavy is engaged with each other, so that the rectal tissue 23 can exist in the form of folds in the jaws, so that the jaws composed of the nail magazine 1 and the nail seat 2 can accommodate more rectal tissue 23.

[0049] Among them, the handle 26 also includes a trigger 6, which is connected to one end of the push blade 10 away from the nail support 2, and can drive the other end of the push blade 10 to move along the length direction of the nail support 2. The nail magazine 1 also includes an opening section and two suturing sections located in the cavity. The two suturing sections are located on both sides of the opening section in the length direction of the nail magazine 1. The suturing section is a third protrusion 1-2 with a suture staple inside; the nail support 2 also includes a first groove 2-1 located in the cavity and corresponding to the third protrusion 1-2. The suture staple can abut against the first groove 2-1 to suture the tissue 23. The trigger 6 is fired, so that the push blade 10 moves forward along the length direction of the nail support 2. During the process of moving forward, the push blade 10 can push the suture staple to cooperate with the first groove 2-1 to anastomose the tissue 23. An opening section is provided in the middle part, and there is no suture staple in the opening section. The rectal tissue 23 incision has a rectal suture staple part 23-1 and a rectal opening part 23-2, which is more conducive to the anastomosis of the rectal tissue 23 by the tubular stapler 24.

[0050] Please refer to Figures 3, 4 and 8. It should be noted that the nail seat 2 also includes a connecting portion connected to the rod tube 25, the connecting portion is provided with a shaft body 7, the shaft body 7 is provided with a sleeve 13 that can rotate around the shaft body 7, the rod tube 25 and the connecting portion are provided with a first opening 2-6 at the opposite ends, the rope body 9 is connected to the sleeve 13, and part of the rope body 9 can be accommodated in the two first openings 2-6.

[0051] Among them, the sleeve 13 can adopt a "T"-shaped structure with a fixed circular hole 13-1 and a fixed pin shaft hole 13-2. The "I"-shaped fixed pin shaft hole 13-2 is used for the insertion of the shaft body 7, and the "I"-shaped fixed circular hole 13-1 is used for fixing the rope body 9. The rope body 9 can be made of a steel wire rope. The first opening 2-6 is an L-shaped structure or a semi-U-shaped structure. Through the setting of the two first openings 2-6, the pushing blade 10 and the rope body 9 can be easily bent.

[0052] Taking into account the possible wear caused by the contact between the rope body 9 and the connecting part and the rod barrel 25 when it is bent, it is preferred that the connecting part is provided with a first rotating shaft 8 adjacent to the first opening 2-6, and the rod barrel 25 is provided with a second rotating shaft 12 adjacent to the first opening 2-6. The first rotating shaft 8 and the second rotating shaft 12 can abut against the rope body 9, and the first rotating shaft 8 and the second rotating shaft 12 can both rotate around their own axes, which can make the rope body 9 smoother during the pulling process, and at the same time reduce or even avoid the wear of the rope body 9 on the connecting part and the rod barrel 25 during the pulling process, thereby increasing the service life of the entire device.

[0053] Please refer to Figures 5, 6 and 10. In some embodiments, the shell includes an upper cover 22 and a lower cover 21 that can clamp the rod barrel 25. The rope reel 14 includes a winding portion 14-2 for winding the rope body 9, an upper column 14-4 located at the top of the winding portion 14-2 and extending to the outside of the upper cover 22, and a lower column 14-3 located at the bottom of the winding portion 14-2. The winding portion 14-2 is provided with a fixing hole for fixing the rope body 9; the locking member is installed on the upper cover 22, and the locking member includes a pawl 15 and an elastic member 17 connected to each other, the elastic member 17 is specifically a spring, and the elastic member 17 is in a compressed state.

[0054] Among them, the steering mechanism 4 also includes a base 20 and a controller. The base 20 is provided with a first slot hole adapted to the lower column 14-3, and the base 20 is installed on the lower cover 21; the controller includes a ratchet 16 and a steering knob 18. The ratchet 16 and the steering knob 18 are provided with a second slot hole adapted to the upper column 14-4, so as to be sleeved on the outer periphery of the upper column 14-4 and drive the rope reel 14 to rotate synchronously. The ratchet 16 and the steering knob 18 are also provided with a gear groove, and the pawl 15 and the gear groove can be engaged to limit the rotation of the rope reel 14.

[0055] It should be noted that the steering knob 18 is located outside the upper cover 22, the top of the upper column 14-4 is provided with a first through hole 14-1, the steering knob 18 is provided with a second through hole corresponding to the first through hole 14-1, and the positioning pin 19 is penetrated through the first through hole 14-1 and the second through hole, so that the steering knob 18 and the rope reel 14 rotate synchronously; the upper column 14-4 is provided with a convex rib or a second groove, and the ratchet 16 is provided with a concave hole that can be adapted to the convex rib or a protrusion that is adapted to the second groove, so that the upper column 14-4 and the ratchet 16 rotate synchronously;

[0056] After the stapler is passed through the trocar and enters the intracavitary space, the steering knob 18 on the steering mechanism 4 is manually turned according to the surgical requirements. Since the locating pin 19 fixes the steering knob 18 to the upper column 14-4 of the rope reel 14, the rotation of the steering knob 18 will drive the rope reel 14 to rotate, and the lower column 14-3 on the rope reel 14 is inserted into the first slot of the base 20, which can ensure that the rope reel 14 rotates more smoothly. Since one end of the rope body 9 is fixed to the reel through the fixing hole, On the winding part 14-2 of the rope device 14, the rope reel 14 can pull the rope body 9 for winding. One end of the rope body 9 is fixed to the fixed circular hole 13-1 on the sleeve 13. The sleeve 13 is provided with a fixed pin shaft hole 13-2. At the same time, the shaft body 7 is passed through the fixed pin shaft hole 13-2, so that the fixed end of the rope body 9 can swing freely with the rotation of the nail seat 2. After the rope body 9 is pulled, the nail seat 2 and the nail magazine 1 can be pulled to rotate 90° relative to the rod tube 25 through the joint 3.

[0057] After the anvil 2 and the staple magazine 1 are swung to the appropriate position, the pawl 15 is clamped into the gear groove of the ratchet 16 and the steering knob 18 under the action of the spring of the elastic member 17. After releasing the hand, the rope body 9 will remain in the original position to prevent the anvil 2 and the staple magazine 1 from shifting in the swing angle during the operation of the stapler. When the anvil 2 and the staple magazine 1 are not in the appropriate position, the lower cover 21 and the upper cover 22 can be turned by fingers to drive the rod barrel 25, the anvil 2 and the staple magazine 1 to rotate 360°; the cutting and closing is completed After completion, the steering knob 18 is rotated in the reverse direction to loosen the rope body 9. The nail support 2 and the nail magazine 1 can be restored to the 0° state (the angle between the actuator and the rod barrel 25 is 180°) under the elastic force of the push blade 10. Then the stapler is taken out from the abdominal cavity. For the two sections of rectal tissue 23 remaining after cutting, the tubular stapler 24 can be directly used to pass through the two sections of rectal opening 23-2 to anastomose the two sections of rectal tissue 23, eliminating the step of manually puncturing the rectal suture nail site 23-1, thereby shortening the operation time.

[0058] Please refer to Figure 9. In this embodiment, the connecting part also includes a front support plate 2-3, an upper support plate 2-4 and a lower support plate 2-5 parallel to each other. There is a first gap between the upper support plate 2-4 and the lower support plate 2-5 for the push blade 10 to pass through. The upper support plate 2-4 is located on the top surface of the push blade 10, and the lower support plate 2-5 is located on the bottom surface of the push blade 10. The front support plate 2-3 is located at the end of the connecting part and is spaced apart from the lower support plate 2-5, and can be attached to the bottom surface of the push blade 10 to support and guide the push blade 10 in a bent state, which can ensure that the push blade 10 can run smoothly after the needle magazine is bent.

[0059] In addition, a joint part 3 is provided between the connecting part and the rod barrel 25, one end of the joint part 3 is fixedly connected to the connecting part, and the other end is rotatably connected to the rod barrel 25 through a pin shaft 11; the rod barrel 25 includes an arc-shaped end face facing the connecting part, and the joint part 3 is provided with a guide surface adapted to the arc-shaped end face to guide the joint part 3 to rotate around the axis of the rotation shaft, and a space for fixing the end of the joint part 3 can be formed between the front support plate 2-3 and the outer wall of the connecting part, and at the same time, a rotation space required for the joint part 3 is reserved in the rod body, and the joint part 3 can also be replaced by a joint bearing, which can achieve the above-mentioned purpose.

[0060] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0061] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0062] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the present invention.

Claims

1. A rectal ultra-low cutting closure device, characterized in that: The invention comprises a rod barrel (25), an actuator rotatably connected to one end of the rod barrel (25) for clamping a tissue (23), and a steering mechanism (4) for controlling the rotation of the actuator. The rod barrel (25) is provided with an elastic push blade (10), and the push blade (10) extends into the interior of the actuator. The steering mechanism (4) comprises a shell connected to the other end of the rod barrel (25), a rope reel (14) rotatably connected to the shell, a rope body (9) having one end connected to the actuator after passing through the rod barrel (25) and the other end connected to the rope reel (14), and a clamping member arranged on the shell. The rope reel (14) can rotate around its own axis to wind the rope body (9), and the clamping member can be clamped to the rope reel (14) to limit the retraction and extension of the rope body (9).

2. The rectal ultra-low cutting closure device according to claim 1, characterized in that: The actuator comprises a nail magazine (1) and a nail anvil (2) which are movably connected, the nail magazine (1) being provided with a first boss (1-1), and the nail anvil (2) being provided with a second boss (2-2) which can be engaged with the first boss (1-1), so that when the nail magazine (1) and the nail anvil (2) are closed, a cavity for clamping tissue (23) is formed.

3. The rectal ultra-low cutting closure device according to claim 2, characterized in that: The staple cartridge (1) further comprises an opening section located in the cavity and two suturing sections, the two suturing sections being located on both sides of the opening section in the length direction of the staple cartridge (1), the suturing sections being third protrusions (1-2) with suturing staples arranged therein; The anvil seat (2) further comprises a first groove (2-1) located in the cavity and arranged corresponding to the third protrusion (1-2), and the suturing nail can abut against the first groove (2-1) to suturing tissue (23).

4. The rectal ultra-low cutting closure device according to claim 2, characterized in that: The anvil seat (2) further comprises a connecting portion connected to the rod tube (25), the connecting portion being provided with an axle body (7), the axle body (7) being sleeved with a shaft sleeve (13) capable of rotating around the axle body (7), the rod tube (25) and the connecting portion being provided with a first opening (2-6) at one end facing each other, the rope body (9) being connected to the shaft sleeve (13), and part of the rope body (9) being capable of being accommodated in two of the first openings (2-6).

5. The rectal ultra-low cutting closure device according to claim 4, characterized in that: The connecting portion is provided with a first rotating shaft (8) adjacent to the first opening (2-6), and the rod barrel (25) is provided with a second rotating shaft (12) adjacent to the first opening (2-6). The first rotating shaft (8) and the second rotating shaft (12) can abut against the rope body (9), and the first rotating shaft (8) and the second rotating shaft (12) can both rotate around their own axes.

6. The rectal ultra-low cutting closure device according to claim 4, characterized in that: The connecting portion further comprises a front support plate (2-3), an upper support plate (2-4) and a lower support plate (2-5) which are parallel to each other, a first gap for the push blade (10) to pass through exists between the upper support plate (2-4) and the lower support plate (2-5), and the front support plate (2-3) is located at the end of the connecting portion and is spaced apart from the lower support plate (2-5) to support and guide the push blade (10) in a bent state.

7. The rectal ultra-low cutting closure device according to claim 4, characterized in that: A joint component (3) is provided between the connecting portion and the rod barrel (25), one end of the joint component (3) is fixedly connected to the connecting portion, and the other end is rotatably connected to the rod barrel (25) via a pin shaft (11); The rod barrel (25) comprises an arc-shaped end surface facing the connecting portion, and the joint component (3) is provided with a guide surface adapted to the arc-shaped end surface so as to guide the joint component (3) to rotate around the axis of the rotating shaft.

8. The rectal ultra-low cutting closure device according to claim 4, characterized in that: It also includes a handle (26) disposed at an end of the housing away from the shaft barrel (25), and the housing is capable of rotating around its own axis relative to the handle (26); The handle (26) comprises: A closer (5) capable of controlling the closing of the nail magazine (1) and the nail anvil (2); The trigger (6) is connected to one end of the push blade (10) facing away from the anvil seat (2), and is capable of driving the other end of the push blade (10) to move along the length direction of the anvil seat (2).

9. The rectal ultra-low cutting closure device according to any one of claims 1 to 8, characterized in that: The housing comprises an upper cover (22) and a lower cover (21) capable of clamping the rod barrel (25); the rope reel (14) comprises a winding portion (14-2) for winding the rope body (9), an upper column (14-4) located at the top of the winding portion (14-2) and extending to the outside of the upper cover (22), and a lower column (14-3) located at the bottom of the winding portion (14-2); the locking member is installed on the upper cover (22), and the locking member comprises a ratchet (15) and an elastic member (17) connected to each other.

10. The rectal ultra-low cutting closure device according to claim 9, characterized in that: The steering mechanism (4) further comprises: A base (20) is provided with a first slot hole adapted to fit the lower column (14-3), and the base (20) is mounted on the lower cover (21); The controller comprises a ratchet (16) and a steering knob (18), wherein the ratchet (16) and the steering knob (18) are provided with a second slot hole adapted to the upper column (14-4) so ​​as to be sleeved on the outer circumference of the upper column (14-4) and drive the rope reel (14) to rotate synchronously, and the ratchet (16) and the steering knob (18) are also provided with a gear slot, and the ratchet pawl (15) and the gear slot can be engaged to limit the rotation of the rope reel (14).

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