Capsule needle and thread module

Abstract

The invention provides a capsule needle and thread module which comprises a control assembly and a needle set, a movable ferrule is formed at the front end of the needle set through a suture line, an operator operates the control assembly, then the movable ferrule at the front end of the needle set is tightened, a fixing knot is formed, and the purpose of suturing and fixing a tissue wound is achieved.

Description

Capsule needle and thread module Technical Field

[0001] The invention relates to a needle and thread for suturing, and in particular to a capsule needle and thread module. Background Art

[0002] As modern medical technology advances, surgical requirements are trending toward smaller wounds or minimally invasive procedures. These procedures not only allow for rapid and effective wound healing but also help reduce and improve scarring after healing. Conventional suture techniques typically involve holding a needle with a suture thread attached, suturing the tissues on both sides of the wound and tightening them, then securing the ends of the suture thread with a knot.

[0003] However, the above-mentioned prior art requires the surgeon to manually wrap the suture around the wound to form the securing knot. This tying process is complex, and small wounds often hinder the surgeon's ability to wrap the suture around the wound, resulting in poor knot quality. Tying multiple knots individually around the wound using the aforementioned knotting method is not only time-consuming and inefficient, but can also easily cause the wound to rupture if the knots are not properly tied, impacting the patient's recovery efficiency.

[0004] Summary of the Invention

[0005] In order to overcome the problem that the existing knotting technology is used to suture a wound during surgery, it is necessary to repeatedly operate on the wound one by one to form multiple fixed knots, which makes the overall operation time lengthy and inefficient. It is also easy to cause the wound to rupture due to improper tying, affecting the patient's recovery efficiency.

[0006] The present invention provides a capsule sewing module, which includes a knotting piece with a through-hole, the two ends of the through-hole being defined as a front end and a rear end, a hollow tubular sleeve shaft protruding from the through-hole toward the front end; and a suture thread, the two ends of which are respectively an operating end and a suture end, the suture thread being passed through the through-hole and the sleeve shaft, and the operating end and the suture end being exposed at the rear end of the through-hole and the front end of the sleeve shaft, respectively.

[0007] In which, at least a portion of the suture end of the suture is wrapped around the outer periphery of the sleeve shaft to form a pre-knot, and a movable loop is formed between the sleeve shaft and the pre-knot; at least a portion of the operating end of the suture forms a knotting structure at the rear end of the knotting piece; and the movable loop changes size according to the distance the knotting structure is displaced relative to the knotting piece.

[0008] The diameter of the knotted structure is larger than the diameter of the through hole, and the knotted structure is supported by the knotted piece at the rear end of the through hole.

[0009] Wherein, the knotting structure is a spherical knot, or the knotting structure includes a spherical knot and a pulling ring connected to the rear end of the knot.

[0010] The knotting piece includes a large diameter portion formed at the rear end of the perforation, and the diameter of the large diameter portion is smaller than or equal to the knotting structure, so that at least a part of the knotting structure can be detachably accommodated in the large diameter portion.

[0011] In which, at least a portion of the sleeve shaft protruding from the perforation is a binding segment, and the binding segment changes its length according to the relative position of the sleeve shaft along the perforation. During suturing: at least a portion of the suture thread is passed through the movable loop, and the movable loop is pulled and shrunk to be attached to the outer periphery of the sleeve shaft; the movable loop continues to shrink to push the sleeve shaft to move toward the perforation, and the length of the binding segment gradually decreases; and when the sleeve shaft completely enters the perforation, the pre-knot is separated from the sleeve shaft, and is tightened with the movable loop and at least a portion of the suture thread to form the fixed knot.

[0012] In which, at least a portion of the sleeve shaft is fixedly disposed in the through-hole, wherein, during suturing: at least a portion of the suture thread is passed through the movable ring, and the movable ring is shrunk by pulling until it is attached to the outer periphery of the sleeve shaft; the operating member is continuously pulled, and the pre-knot is displaced toward the front end until it is separated from the sleeve shaft; the pre-knot is separated from the sleeve shaft and is tightened with the movable ring and at least a portion of the suture thread to form the fixed knot.

[0013] Furthermore, the suture end of the suture thread is connected to a suture needle.

[0014] During operation of the capsule sewing module, an operator positions the front end of the knotting element at a desired suture point, passes the suture needle through the suture point, and then passes the needle and suture thread through the movable ring. After suturing is completed, the operator moves the control element away from the knotting element, causing the suture thread to be pulled by the control element, causing the movable ring to shrink until it is attached to the outer periphery of the sheath shaft.

[0015] Then, the control member is continuously pulled and / or the needle is synchronously pulled to generate tension at both ends of the suture, thereby causing the pre-knot to separate from the sleeve shaft and be tightened with the movable loop and the suture passing through the movable loop to form a fixed knot.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The capsule needle and thread module of the present invention has a simple structure and can be designed into different sizes as needed. The capsule needle and thread module can be reduced to be suitable for minimally invasive surgery, assisting the operator to continuously complete suturing and knotting procedures in a small space, optimizing the surgical schedule and suturing and knotting quality. The capsule needle and thread module maximizes the reduction of the amount of suture used while increasing the length, thereby reducing costs.

[0018] The retaining structure can help the operator align the capsule needle and thread module with the suture site and prevent the sleeve shaft from directly contacting the suture site and contaminating it with blood or tissue fluid. At the same time, the retaining structure can effectively prevent the pre-knot from unexpectedly detaching from the sleeve shaft when supporting the sleeve shaft.

[0019] In particular, when the sleeve shaft is fixedly disposed in the through-hole, during the process of forming the securing knot, the operator needs to achieve sufficient tension when pulling the control member and / or the suture needle so that the pre-tied knot pushes the resisting structure to deform and separate from the sleeve shaft. During this process, the resisting structure can prevent the pre-tied knot from prematurely separating from the sleeve shaft, thereby preventing the securing knot from being positioned undesirably or from being loosened due to poor quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a perspective view of a first preferred embodiment of the present invention;

[0021] FIG2 is an exploded view of a first preferred embodiment of the present invention;

[0022] FIG3a is a first action diagram of the first preferred embodiment of the present invention;

[0023] FIG3 b is a second action diagram of the first preferred embodiment of the present invention;

[0024] FIG4 is a partial cross-sectional view of a second preferred embodiment of the present invention;

[0025] FIG5 is a perspective view of a third preferred embodiment of the present invention;

[0026] FIG6 is an exploded view of a third preferred embodiment of the present invention;

[0027] FIG7a is a first action diagram of the third preferred embodiment of the present invention;

[0028] FIG7 b is a second action diagram of the third preferred embodiment of the present invention;

[0029] FIG8a is a fourth preferred embodiment of the present invention;

[0030] FIG8 b shows a fourth preferred embodiment of the present invention.

[0031] Explanation of symbols:

[0032] 10 control parts

[0033] 11 connecting ribs

[0034] 111 engagement protrusion

[0035] 12 Pull rod

[0036] 13 Control Department

[0037] 131 connecting rod

[0038] 20 knotted pieces

[0039] 21 piercings

[0040] 211 large diameter section

[0041] 22 sets of shafts

[0042] 221 binding line segment

[0043] 23 connection positions

[0044] 231 grooves

[0045] 232 card position

[0046] 235 snap-in groove

[0047] 24 limit holes

[0048] 25 Resistance Structure

[0049] 251 extension

[0050] 252 Resistance Stage

[0051] 26 storage space

[0052] 30 shells

[0053] A suture

[0054] A1 Pre-knotted

[0055] A2 movable ring

[0056] A3 knotted structure

[0057] A31 Deadlock

[0058] A32 pull ring

[0059] B needle

[0060] C limit rope

[0061] C1 limit ring DETAILED DESCRIPTION

[0062] To further clarify the objectives, technical solutions, and advantages of the embodiments of the present invention, the following will provide a clear and complete description of the technical solutions in the embodiments of the present invention, in conjunction with the accompanying drawings. It should be understood that the described embodiments are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0063] The present invention is described in further detail below with reference to the accompanying drawings:

[0064] Please refer to Figures 1 to 3b, which are the first preferred embodiment of the capsule needle and thread module provided by the present invention, comprising an operating member 10 and a knotting member 20 arranged in an axial direction, wherein the operating member 10 is arranged at a rear end and the knotting member 20 is arranged at a front end. The knotting member 20 is provided with a through-hole 21, so that a suture A can be passed through it, and an operating end of the suture A is connected to any part of the operating member 10. The manner in which the suture A is connected to the operating member 10 is not limited, and can be fixed by gluing or tying. In this embodiment, the operating member 10 includes a pull rod 12 arranged radially, so that the operating end of the suture A can be tied to the pull rod 12.

[0065] The knotting member 20 has a hollow, tubular shaft 22 protruding from the front end within the through-hole 21. The other end of the suture A, opposite the operating end, is a suture end. After passing through the through-hole 21 and the shaft 22, the suture A extends toward the front end and becomes exposed outside the capsule needle and thread module. The exposed end of the suture A is wrapped around the shaft 22, forming a pre-knot A1 and a removable loop A2 between the shaft 22 and the pre-knot A1. A needle B is attached to the distal end of the suture end for suturing and securing a tissue wound.

[0066] In the first embodiment, at least a portion of the sleeve shaft 22 is fixedly disposed in the perforation 21. When the capsule sewing module is in operation, an operator uses the front end of the knotting member 20 to correspond to an expected suture point, and after using the suture needle B to pass through the suture point, the suture needle B together with the suture line A / the suture end passes through the movable loop A2. Furthermore, when suturing, other suture lines different from the suture line A can also be used for suturing and pass through the movable loop A2. After suturing is completed, the operator operates the operating member 10 to move away from the knotting member 20, so that the operating end of the suture line A is pulled through the operating member 10, thereby causing the movable loop A2 to shrink until at least a portion of the movable loop A2 is attached to the outer periphery of the sleeve shaft 22. Then, the control member 10 is continuously pulled and / or the needle B is synchronously pulled to generate tension at both ends of the suture A, thereby causing the pre-knot A1 to separate from the sleeve shaft 22 toward the front end and be tightened with the movable loop A2 and the suture A passing through the movable loop A2 to form a fixed knot.

[0067] In another embodiment, the sleeve shaft 22 can be displaced along the through-hole 21, and the length thereof protruding from the front end of the through-hole 21 can be changed according to its position relative to the through-hole 21. At least a portion of the sleeve shaft 22 protruding from the through-hole 21 is further defined as a binding line segment 221. When the operating member 10 is continuously pulled, the movable loop A2 is shrunk by pulling and pushes the sleeve shaft 22 to displace into the through-hole 21, thereby causing the length of the binding line segment 221 to gradually decrease. When the sleeve shaft 22 completely enters the through-hole 21, the pre-knot A1 is detached from the sleeve shaft 22 and is tightened with the movable loop A2 and the suture A passing through the movable loop A2 to form the fixed knot.

[0068] In another embodiment, the knotting member 20 includes a connection portion 23 for detachably coupling with the operating member 10 to prevent the operating member 10 from being pulled unexpectedly. The manner in which the knotting member 20 couples with the operating member 10 via the connection portion 23 is not limited. The knotting member 20 may be coupled to the operating member 10 through a concave-convex fit or by providing a detachable coupling component between the connection portion 23 and the operating member 10.

[0069] In this embodiment, the knotting piece 20 is provided with a groove 231 at the rear end as the connecting position 23, and at least a portion of the inner wall of the groove 231 is provided with a radial annular recessed engaging position 232. The operating piece 10 extends toward the front end to form two connecting ribs 11 spaced apart from each other and arranged correspondingly, and the maximum distance formed between the two connecting ribs 11 is slightly smaller than the diameter formed by the groove 231. The operating piece 10 is detachably inserted into the groove 231 of the knotting piece 20 with the two connecting ribs 11. Preferably, the groove 231 of the knotting piece 20 is connected to the rear end of the perforation 21, and the two connecting ribs 11 are extended and formed at both ends of the pull rod 12 of the operating piece 10 like the front end, so that the operating end of the suture A can pass through the perforation 21, the groove 231 and the gap between the two connecting ribs 11 in sequence to be tied and fixed to the pull rod 12.

[0070] The front ends of the two connecting ribs 11 have a radially protruding locking protrusion 111 corresponding to the locking position 232. When the two connecting ribs 11 are arranged in the groove 231, the locking protrusion 111 is correspondingly accommodated in the locking position 232, so that the operating member 10 cannot be separated from the knotting member 20 due to the concave-convex connection between the locking protrusion 111 and the locking position 232.

[0071] For example, during operation, when the operating member 10 is to be separated from the knotting member 20, pressure is applied to the two connecting ribs 11 to deform them, causing the engaging protrusion 111 to disengage from the groove 231 and release the concave-convex engagement, thereby allowing the operating member 10 to be separated from the knotting member 20. The capsule needle and thread module of the present invention has a simple structure, allowing the overall volume to be effectively reduced to a size suitable for minimally invasive surgery, assisting the operator in continuously completing suturing and knotting procedures in a confined space, thereby optimizing surgical time and suturing and knotting quality.

[0072] Next, please refer to the second preferred embodiment provided in Figure 4. The difference from the first embodiment is that the knotting piece 20 also includes a limiting hole 24 at the front end, and a limiting rope C protrudes toward the front end in the limiting hole 24. At least a portion of the limiting rope C protrudes from the limiting hole 24 to form a limiting ring C1. At least a portion of the limiting ring C1 is hooked with the pre-knot A1 and / or the movable loop A2 to prevent the pre-knot A1 and the movable loop A2 from detaching from the sleeve shaft 22 under unexpected circumstances.

[0073] In this embodiment, the through-hole 21 and the limiting hole 24 are parallel to each other and extend through the knotting member 20. The rear ends of the through-hole 21 and the limiting hole 24 are both connected to the groove 231. The limiting cord C is arranged in a concave shape within the limiting hole 24, so that both ends of the limiting cord C protrude from the groove 231 toward the rear end of the limiting hole 24. The limiting ring C1 formed by the concave shape protrudes toward the front end of the limiting hole 24 and interlocks with the pre-knot A1. When the operating member 10 is engaged with the connecting portion 23 of the knotting member 20, at least a portion of the operating member 10 presses the two ends of the limiting cord C between the connecting portion 23. In this manner, the limiting cord C can only be released when the operating member 10 is detached from the knotting member 20, simultaneously releasing the pre-knot A1 to form the subsequent fixed knot.

[0074] Please further refer to Figures 5 to 7b, which illustrate a third preferred embodiment of the present invention, comprising the operating member 10, the knotting member 20, and a housing 30. The housing 30 covers at least a portion of the front end of the operating member 10 and at least a portion of the rear end of the knotting member 20. Unlike the aforementioned embodiments, the capsule sewing module is substantially rod-shaped. This design maximizes the reduction in the amount of suture A used while increasing its length, allowing the module to be designed in various sizes as needed, thereby reducing costs.

[0075] The operating member 10 is rod-shaped, with a pull rod 12 formed at its front end for connection to the operating end of the suture A. The front end of the operating member 10 can slide relative to the knotting member 20 within the housing 30, and the rear end of the operating member 10 protrudes from the housing 30 to form a control portion 13, so that the operator can operate the control portion 13 to pull the operating member 10 relative to the knotting member 20.

[0076] The capsule needle and thread module further includes the connection position 23. The location of the connection position 23 is not limited. It can be set between the knotting piece 20 and the operating piece 10, or between the shell 30 and the operating piece 10. Any structure or component that fixes the operating piece 10 and prevents it from moving away from the knotting piece 20 is included in the scope of the present invention.

[0077] Preferably, the connection portion 23 extends from the rear end of the knotting member 20 and is accommodated in the housing 30, and at least a portion of the connection portion 23 and at least a portion of the front end of the operating member 10 overlap with each other in the housing 30. The connection portion 23 can be the groove 231 or a track, so that the front end of the operating member 10 can slide relative to the connection portion 23 in the housing 30.

[0078] In this embodiment, the connection portion 23 extends toward the rear end to a position adjacent to the control portion 12, and a radially recessed engaging groove 235 is formed on a side of the connection portion 23 corresponding to the control member 10. The control portion 13 extends toward the front end and includes a connecting rod 131 and the connecting rib 11. The connecting rod 131 and the connecting rib 11 are spaced apart and correspondingly disposed, and the position of the connecting rib 11 corresponds to the connection portion 23.

[0079] The front end of the connecting rod 131 is inserted into the housing 30 and connected to the pull rod 12, while the front end of the connecting rib 11 is inserted into the housing 30 and has the engaging protrusion 111 protruding toward the engaging groove 235. In this way, the operating member 10 cannot be separated from the knotting member 20 due to the concave-convex coupling relationship between the engaging protrusion 111 and the engaging position 232. When the operating member 10 is to be separated from the knotting member 20, pressure is applied to cause the connecting rib 11 to deform and move toward the connecting rod 131, and the engaging protrusion 111 can be separated from the groove 231 and the concave-convex coupling relationship is released.

[0080] In another embodiment, the outer diameter of the knotting piece 20 gradually decreases from the rear end to the front end to form a cone-like shape, which helps the capsule needle and thread module to correspond to the suture point with the knotting piece 20. The cone-like structure can avoid interfering with the operator's field of vision and help to confirm the corresponding position of the front end of the knotting piece 20 of the capsule needle and thread module.

[0081] In another embodiment, a retaining structure 25 is formed at the front end of the knotting member 20, and an accommodating space 26 is formed between the retaining structure 25 and the front end of the knotting member 20. Preferably, the retaining structure 25 has an extension section 251 extending from any surface of the front end of the knotting member 20 toward the front end. The front end of the extension section 251 has a retaining section 252 extending radially from the through-hole 21. The extension section 251, the retaining section 1172, and the space between the extension section 251 and the through-hole 21 define the accommodating space 26, and the length of the extension section 251 determines the size of the accommodating space 26.

[0082] When not in use, the length of the binding segment 221 of the sleeve shaft 22 is preferably equal to the length of the accommodating space 26. Preferably, at least a portion of the outer periphery of the end of the binding segment 221 can be supported by the retaining segment 252 to strengthen the overall structure. Furthermore, the outer periphery of the end of the binding segment 221 and the end face of the retaining segment 252 abut against each other. The retaining structure 25 can help the operator to correspond the capsule needle and thread module to the suture, and prevent the sleeve shaft 22 from directly contacting the suture and being contaminated with blood or tissue fluid. At the same time, when supporting the sleeve shaft 22, the retaining structure 25 can effectively prevent the pre-knot A1 from detaching from the sleeve shaft 22 in an unexpected state.

[0083] It is worth noting that in the embodiment where the sleeve shaft 22 is fixedly disposed in the through-hole 21, during the process of forming the fixing knot, the operator needs to reach sufficient tension when pulling the control member 10 and / or the suture needle B so that the pre-tied knot A1 pushes the resisting structure 25 to deform and separate from the sleeve shaft 22. During this process, the resisting structure 25 can prevent the pre-tied knot A1 from prematurely separating from the sleeve shaft 22, thereby preventing the fixing knot from being positioned in an undesirable position or from being loosened due to poor quality.

[0084] Further reference is made to Figures 8a and 8b, which are respectively the fourth and fifth preferred embodiments provided by the present invention. Different from the above embodiments, the operating member 10 is formed by the operating end of the suture A. In the embodiments provided in Figures 8a and 8b, the capsule needle and thread module includes the knotting piece 20, and the knotting piece 20 is also penetrated by the through-hole 21. The two ends of the through-hole 21 are further defined as the front end and the rear end, and the through-hole 21 also protrudes toward the front end with the hollow tubular sleeve shaft 22. The relationship between the sleeve shaft 22 and the through-hole 21 has been described in the above paragraph and will not be repeated here.

[0085] The suture A is passed through the through-hole and the sleeve shaft, and its two ends are the operating end and the suture end, respectively. The operating end of the suture A is exposed at the rear end of the through-hole 21, and the suture end is exposed at the front end of the sleeve shaft 22. Similarly, at least a portion of the suture end of the suture A is wrapped around the outer periphery of the sleeve shaft 22 to form the pre-knot A1, and the movable loop A2 is formed between the sleeve shaft 22 and the pre-knot A1.

[0086] At least a portion of the operating end of the suture A located at the rear end of the knotting piece 20 is formed with a knotting structure A3 as the control piece 10. In this way, the size of the movable loop A2 can be directly changed according to the distance the knotting structure A3 is displaced relative to the rear end of the knotting piece 20. This allows the present invention to omit the control piece 10 structure described in the above embodiments, achieve miniaturization, and be applied to minimally invasive surgeries such as laparoscopy or Da Vinci surgery.

[0087] In the embodiment shown in FIG8a , the knot structure A3 is a spherical knot A31 formed at the distal end of the operating end. Preferably, the diameter of the knot A31 is larger than the diameter of the through-hole 21, preventing the knot structure A3 from passing through the through-hole 21 and being blocked by the knotting member 20 at the rear end of the through-hole 21. Thus, during use, the knot A31 can be directly pulled, causing the movable loop A2 to shrink and ultimately forming the fixed knot.

[0088] In the embodiment shown in Figure 8b, the difference from Figure 8a is that the knotting structure A3 includes a spherical knot A31 and a pulling ring A32. In this embodiment, when forming the knotting structure A3, any section of the operating end of the suture A can be first folded so that the end of the operating end overlaps with at least a portion of the operating end of the suture A, and the end of the operating end and at least a portion of the operating end together form the knot A31. At the same time as the knot A31 is formed, the folded portion of the operating end of the suture A can be further defined as the pulling ring A32. In this way, when in use, tools such as instruments can be used to hook the pulling ring A32 to pull the knotting structure A3, thereby improving the convenience and accuracy of operation and avoiding slippage during pulling.

[0089] The knotting structure A3 can also be presented in various forms as needed. For example, a crossbar or a soft ring can be tied to the knot A31, so that the capsule needle and thread module can not only easily enter the body through a minimally invasive incision, but also easily pull the knotting structure A3 and form the fixed knot.

[0090] In order to prevent the knotting structure A3 from being pulled unexpectedly, causing the movable loop A2 to shrink and thereby hindering the needle B and the end of the suture thread A from passing through the movable loop A2 during suturing, the knotting member 20 is formed with a large diameter portion 211 at the rear end of the through hole 21, so that the knotting structure A3 can be accommodated within the large diameter portion 211.

[0091] Preferably, the diameter of the large diameter portion 211 is less than or equal to the knot A31, and the knotted structure A3 is housed within the large diameter portion 211 with the knot A31. When housed, the knot A31 generates friction with at least a portion of a sidewall of the large diameter portion 211, and the pull ring A32 is exposed at the rear end of the large diameter portion 211. Thus, the knotted structure A3 can be housed within the large diameter portion 211 and is not likely to fall out. Even if the knotted structure A3 and / or the pull ring A32 are accidentally moved, the knotted structure A3 will not be displaced relative to the knotting member 20, thereby effectively preventing the movable loop A2 from shrinking in an unexpected manner.

[0092] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A capsule sewing module, characterized in that: Include: A knotting member having a through hole formed therethrough, the two ends of the through hole being defined as a front end and a rear end, a hollow tubular sleeve protruding from the through hole toward the front end; and A suture having an operating end and a suture end at both ends, the suture being passed through the through-hole and the sleeve shaft, and the operating end and the suture end being exposed at the rear end of the through-hole and the front end of the sleeve shaft, respectively, wherein: At least a portion of the suture end of the suture thread is wrapped around the outer periphery of the sleeve shaft to form a pre-knot, and a movable loop is formed between the sleeve shaft and the pre-knot; At least a portion of the operating end of the suture thread is formed with a knotting structure at the rear end of the knotting member; and The movable ring changes size according to the distance the knotting structure is displaced relative to the knotting piece.

2. The capsule sewing module according to claim 1, characterized in that: The diameter of the knotted structure is larger than the diameter of the through hole, and the knotted structure is supported by the knotted piece at the rear end of the through hole.

3. The capsule sewing module according to claim 2, characterized in that: The knotting structure is a ball-shaped knot, or the knotting structure includes a ball-shaped knot and a pulling ring connected to the rear end of the knot.

4. The capsule sewing module according to any one of claims 1 to 3, characterized in that: The knotting piece is included in a rear end of the through hole to form a large diameter portion, the diameter of the large diameter portion is smaller than or equal to the knotting structure, so that at least a part of the knotting structure can be detachably accommodated in the large diameter portion.

5. The capsule sewing module according to any one of claims 1 to 3, characterized in that: At least a portion of the sleeve shaft protruding from the through hole is a binding wire segment, and the binding wire segment changes its length according to the relative position of the sleeve shaft along the through hole. During suturing: Passing at least a portion of the suture thread through the movable ring, and the movable ring is pulled to shrink until it is attached to the outer periphery of the sleeve shaft; The movable ring continues to shrink to push the sleeve shaft toward the through hole, and the length of the binding wire segment gradually decreases; and When the sleeve shaft completely enters the through hole, the pre-knot is separated from the sleeve shaft and is tightened with the movable ring and at least a portion of the suture to form the fixed knot.

6. The capsule sewing module according to claim 4, characterized in that: At least a portion of the sleeve shaft protruding from the through hole is a binding wire segment, and the binding wire segment changes its length according to the relative position of the sleeve shaft along the through hole. During suturing: Passing at least a portion of the suture thread through the movable ring, and the movable ring is pulled to shrink until it is attached to the outer periphery of the sleeve shaft; The movable ring continues to shrink to push the sleeve shaft toward the through hole, and the length of the binding wire segment gradually decreases; and When the sleeve shaft completely enters the through hole, the pre-knot is separated from the sleeve shaft and is tightened with the movable ring and at least a portion of the suture to form the fixed knot.

7. The capsule sewing module according to any one of claims 1 to 3, characterized in that: At least a portion of the sleeve shaft is fixedly disposed in the through hole, wherein during suturing: Passing at least a portion of the suture thread through the movable ring, and the movable ring is pulled to shrink until it is attached to the outer periphery of the sleeve shaft; Continuously pulling the operating member causes the pre-knot to move toward the front end until it is released from the sleeve shaft; The pre-knot is separated from the sleeve shaft and is tightened with the movable ring and at least a portion of the suture to form the fixed knot.

8. The capsule sewing module according to claim 4, characterized in that: At least a portion of the sleeve shaft is fixedly disposed in the through hole, wherein during suturing: Passing at least a portion of the suture thread through the movable ring, and the movable ring is pulled to shrink until it is attached to the outer periphery of the sleeve shaft; Continuously pulling the operating member causes the pre-knot to move toward the front end until it is released from the sleeve shaft; The pre-knot is separated from the sleeve shaft and is tightened with the movable ring and at least a portion of the suture to form the fixed knot.

9. The capsule sewing module according to any one of claims 1 to 3, characterized in that: The suture end of the suture thread is connected with a suture needle.

10. The capsule sewing module according to claim 4, characterized in that: The suture end of the suture thread is connected with a suture needle.

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