Capsule needle thread module

Abstract

The present invention includes a control component and a needle set, forms a movable ring at the front end of the needle set using a suture, and an operator operates the operation component to tie the movable ring at the front end of the needle set to form a fixed knot, thereby achieving the use of suturing and fixing a tissue wound.

Description

Technical Field

[0001] The present invention relates to a sewing needle thread, and particularly to a capsule needle thread module.

Background Art

[0002] As modern medical technology develops increasingly, the requirements for surgeries are also evolving towards smaller incisions and minimally invasive surgeries, which can not only achieve a quick and good wound recovery effect, but also help with the disappearance and improvement of the scar after healing. In the prior art, when a surgeon wants to suture a wound, usually, the surgeon holds a suture needle equipped with a surgical suture, sutures the tissues on both sides of the wound, and forms a fixed knot to fix the end of the surgical suture.

[0003] However, in the above prior art, it is necessary for the surgeon to manually wind the surgical suture to form a fixed knot, the binding process is complicated, and also, due to the small incision, it hinders the operation of manually winding the surgical suture, leading to a decline in the quality of the fixed knot. If multiple fixed knots are formed at the wound in the above knotting method, not only will the overall time become long and inefficient, but if the fixed knots are not properly tied, the wound will be easily torn, affecting the patient's recovery efficiency.

Summary of the Invention

Problems to be Solved by the Invention

[0004] When applying the conventional thread knotting technology to the suture of a wound in surgery, it is necessary to repeatedly form multiple fixed knots at the wound one by one, which not only makes the overall surgery time long and inefficient, but also if the small knots are not properly tied, the wound will be easily torn, affecting the patient's recovery efficiency. The problem is overcome.

Means for Solving the Problems

[0005] The present invention provides a capsule needle module comprising: a knotting member having a through hole, with a front end and a rear end defined at both ends of the through hole, and a hollow tubular outer fitting shaft protruding toward the front end of the through hole; and a suture thread having an operating end and a suture end at both ends, respectively, passing through the through hole and the outer fitting 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 outer fitting shaft, respectively.

[0006] In the capsule needle thread module of the present invention, at least a portion of the suture end of the suture thread is wrapped around the outer circumference of the outer fitting shaft to form a pre-knot, and a movable ring is formed between the outer fitting shaft and the pre-knot. At least a portion of the operating end of the suture thread has a knot structure formed at the rear end of the knotting member. The movable ring changes its size based on the distance the knot structure moves relative to the knot member.

[0007] In the capsule needle thread module of the present invention, the diameter formed by the knot structure is larger than the diameter formed by the through hole, and the knot structure is in contact with the rear end of the through hole by the knotting member.

[0008] In the capsule needle thread module of the present invention, the knot structure is a spherical knot, or the knot structure includes a spherical knot and a pull ring connected to the rear end of the knot.

[0009] In the capsule needle thread module of the present invention, the knotting member includes a large-diameter portion formed at the rear end of the through hole, the diameter of which the large-diameter portion comprises is equal to or smaller than the knot structure, and at least a portion of the knotting member is removably housed in the large-diameter portion.

[0010] In the capsule needle thread module of the present invention, at least a portion of the outer fitting shaft protruding from the through hole is a binding portion, the length of which the binding portion changes according to the relative position displaced along the through hole of the outer fitting shaft, during suturing, the movable ring is passed over at least a portion of the suture thread, the movable ring is contracted by being pulled until it adheres to the outer circumference of the outer fitting shaft, the movable ring continues to contract and pushes the outer fitting shaft toward the through hole, the length of the binding portion is gradually reduced, and when the outer fitting shaft is completely inside the through hole, the pre-knot detaches from the outer fitting shaft and is bound to the movable ring and at least a portion of the suture thread, forming the fixed knot.

[0011] In the capsule needle thread module of the present invention, at least a portion of the outer fitting shaft is fixedly installed in the through hole, and during suturing, at least a portion of the suture thread passes through the movable ring, the movable ring is retracted by pulling until it adheres to the outer circumference of the outer fitting shaft, the operation control member is continuously pulled, the pre-knot moves toward the front end until it detaches from the outer fitting shaft, the pre-knot detaches from the outer fitting shaft and is bound to the movable ring and at least a portion of the suture thread, forming the fixed knot.

[0012] Furthermore, the suture end of the suture thread is connected to a suture needle.

[0013] When operating the capsule needle module, the operator aligns the front end of the knotting member with the expected suture location, passes the suture needle through the suture location, and then passes the suture thread along with the suture thread through the movable ring. After suturing is complete, the operator operates the operation control member to separate it from the knotting member and pulls the suture thread through the operation control member to contract the movable ring until it adheres to the outer circumference of the outer fitting shaft.

[0014] Next, the operation control member is continued to be pulled, and / or the suture needle is continued to be pulled synchronously, generating tension at both ends of the suture, detaching the pre-knot from the outer fitting shaft, and binding it with the movable ring and the suture that has passed through the movable ring, thereby forming a fixed knot. [Effects of the Invention]

[0015] Compared to conventional technology, the beneficial effects of the present invention are as follows: The capsule needle module of the present invention has a simple structure, can be designed in different sizes as needed, can be reduced in size to suit minimally invasive surgery, and assists the operator in completing continuous suturing and knotting processes in confined spaces. The present invention allows the operator to intuitively use conventional clamping tools to complete the knotting process, compared to other knotting tools on the market which require the operator to change tools. By optimizing the surgical process and the quality of suturing and knotting, the capsule needle module achieves cost reduction by maximizing the reduction in the amount of suture material used, assuming an increase in length.

[0016] The contact structure assists the operator in aligning the capsule needle module with the suture site and prevents the outer shaft from directly contacting the suture site and becoming contaminated with blood or tissue fluid. At the same time, the contact structure effectively prevents the pre-knot from unexpectedly detaching from the outer shaft when supported by the outer shaft.

[0017] In particular, when the outer fitting shaft is fixedly installed within the through hole, during the process of forming the fixing knot, the operator needs to obtain sufficient tension to press the contact structure against the pre-knot and deform it, causing it to detach from the outer fitting shaft, when pulling the operating control member and / or the suture. In this process, the contact structure prevents the pre-knot from detaching from the outer fitting shaft first, and further prevents situations where the position of the fixing knot becomes unideal or the quality of the fixing knot is poor and it easily loosens. [Brief explanation of the drawing]

[0018] [Figure 1] This is a perspective view of a first preferred embodiment of the present invention. [Figure 2] Exploded view of the first preferred embodiment of the present invention. [Figure 3a] First operation diagram of the first preferred embodiment of the present invention. [Figure 3b] Second operation diagram of the first preferred embodiment of the present invention. [Figure 4] Partial cross-sectional view of the second preferred embodiment of the present invention. [Figure 5] Perspective view of the third preferred embodiment of the present invention. [Figure 6] Exploded view of the third preferred embodiment of the present invention. [Figure 7a] First operation diagram of the third preferred embodiment of the present invention. [Figure 7b] Second operation diagram of the third preferred embodiment of the present invention. [Figure 8a] Fourth preferred embodiment of the present invention. [Figure 8b] Fifth preferred embodiment of the present invention.

Modes for Carrying Out the Invention

[0019] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in combination with the drawings in the embodiments of the present invention. However, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments made without creative labor by those skilled in the art shall fall within the protection scope of the present invention.

[0020] Figures 1 to 3b show a first preferred embodiment of a capsule needle module provided by the present invention, which includes an axially arranged operating control member 10 and a knotting member 20, the operating control member 10 being located at the rear end and the knotting member 20 being located at the front end. The knotting member 20 is provided with a through hole 21 through which a suture A can be passed, and the operating end of the suture A is connected to any part of the operating control member 10. The method by which the suture A is connected to the operating control member 10 is not limited and may be by adhesive fixation or knotting, and in this embodiment the operating control member 10 includes a radially positioned thread puller 12, and the operating end of the suture A can be tied to the thread puller 12.

[0021] An outer fitting shaft 22 protruding from the front end is installed in the through hole 21 of the knotting member 20, and the outer fitting shaft 22 is hollow tubular. The other end of the suture A opposite to the operating end is the suture end, and after passing through the through hole 21 and the outer fitting shaft 22 at the suture end, the suture A extends toward the front end and is exposed outside the capsule needle module. The suture end of the suture A that is exposed outside the capsule needle module is wrapped around the outer circumference of the outer fitting shaft 22, forming a pre-knot A1 and a movable ring A2 formed between the outer fitting shaft 22 and the pre-knot A1, and the suture A is used to suture and fix a tissue wound with a suture needle B connected to the end of the suture end.

[0022] In the first embodiment, at least a portion of the outer fitting shaft 22 is fixedly installed within the through hole 21. When operating the capsule needle module, the operator aligns the front end of the knotting member 20 with the expected suture location and passes it through the movable ring A2. Furthermore, during suturing, a suture different from suture A may be used and passed through the movable ring A2. After suturing is complete, the operator operates the operation control member 10 to separate it from the knotting member 20, pulls the operating end of suture A through the operation control member 10, and shrinks the movable ring A2 until at least a portion of it is attached to the outer circumference of the outer fitting shaft 22. Next, the operator continues to pull the operation control member 10 and / or synchronously pull the suture needle B. Using the suture site as a pivot point Tension is generated at both ends of the suture A, causing the pre-knot A1 to detach from the outer fitting shaft 22, and the movable ring A2 and the suture A that has passed through the movable ring A2 to tie together, thereby forming a fixed knot.

[0023] In another embodiment, the outer fitting shaft 22 can be displaced along the through hole 21, and the length protruding from the front end of the through hole 21 varies depending on its position relative to the through hole 21. At least a portion of the outer fitting shaft 22 protruding from the through hole 21 is further defined as a binding portion 221. When the operation control member 10 is continuously pulled, the movable ring A2 is pulled and contracted, pressing and moving the outer fitting shaft 22 into the through hole 21, and when the outer fitting shaft 22 is fully inside the through hole 21, the pre-knot A1 detaches from the outer fitting shaft 22 and binds to the movable ring A2 and the suture A passing through the movable ring A2, forming the fixed knot.

[0024] In another embodiment, the tying member 20 includes a connecting portion 23, which is detachably coupled to the operation control member 10 to prevent the operation control member 10 from being moved in an unexpected manner. The method by which the connecting portion 23 of the tying member 20 and the operation control member 10 are coupled is not limited. It may be by a combination of protrusions and indentations, or a coupling member may be installed between the connecting portion 23 and the operation control member 10 to detachably combine them.

[0025] In this embodiment, a groove 231 is recessed at the rear end of the tying member 20 as a connection portion 23, and at least a portion of the inner wall of the groove 231 is recessed with an annular engagement portion 232 in the radial direction. The operating control member 10 has two connecting ribs 11 that extend toward the front end and are spaced apart and arranged in correspondence, and the longest distance between the two connecting ribs 11 is slightly smaller than the diameter of the groove 231. The operating control member 10 is removably inserted into the groove 231 of the tying member 20 using the two connecting ribs 11. Preferably, the groove 231 of the tying member 20 is connected to the rear end of the through hole 21, and the two connecting ribs 11 are formed by extending from both ends of the thread puller 12 of the operating control member 10 toward the front end, so that the operating end of the suture A can be sequentially passed through the through hole 21, the groove 231, and the gap between the two connecting ribs and tied to the thread puller 12.

[0026] At the front ends of the two connecting ribs 11, the portions corresponding to the engagement portions 232 have engagement projections 111 that protrude radially. When the two connecting ribs 11 are placed in the groove 231, the engagement projections 111 are housed within the engagement portions 232, and the operation control member 10 cannot be detached from the connecting member 20 due to the concave-concave coupling relationship between the engagement projections 111 and the engagement portions 232.

[0027] For example, when pulling the operation control member 10 away from the knotting member 20 during operation, pressure is applied to the two connecting ribs 11 to bring them closer together and deform them, causing the engaging protrusions 111 to disengage from the grooves and release the concave-convex coupling relationship, allowing the operation control member 10 to detach from the knotting member 20. The capsule needle and suture module of the present invention has a simple structure and can effectively reduce the overall volume to make it suitable for minimally invasive surgery, assisting the operator in completing suturing and knotting procedures continuously in confined spaces, and optimizing the surgical process and the quality of suturing and knotting.

[0028] Next, referring to the second preferred embodiment shown in Figure 4, the difference from the first embodiment is that the knotting member 20 further includes a position regulating hole 24 at its front end, the position regulating string C protrudes toward the front end within the position regulating hole 24, and a position regulating ring C1 is formed on at least a portion of the position regulating string C protruding from the position regulating hole 24, and at least a portion of the position regulating ring C1 is hooked with the pre-knot A1 and / or the movable ring A2 to prevent the pre-knot A1 and the movable ring A2 from detaching from the outer fitting shaft 22 in unexpected circumstances.

[0029] In this embodiment, the through hole 21 and the position regulating hole 24 are provided in the knotting member 20 parallel to each other, and the rear ends of the through hole 21 and the position regulating hole 24 are connected by the groove 231. The position regulating string C is recessed into the position regulating hole 24, and both ends of the position regulating string C protrude into the groove 231 toward the rear end of the position regulating hole 24. The position regulating ring C1 formed after the recess protrudes toward the front end of the position regulating hole 24 and is hooked with the pre-knot A1. When the operation control member 10 is connected to the connection portion 23 of the knotting member 20 with corresponding protrusions and recesses, at least a part of the operation control member 10 presses both ends of the position regulating string C between the connection portion 23. In this manner, the position control string C releases the operation control member 10 when it is necessary to detach it from the knotting member 20 again, releasing the pre-knot A1, and then forming the fixed knot.

[0030] Furthermore, referring to Figures 5 to 7b, a third preferred embodiment provided by the present invention includes an operating control member 10, the knotting member 20, and a shell 30, wherein the shell 30 covers at least a portion of the front end of the operating control member 10 and at least a portion of the rear end of the knotting member 20. The difference from the embodiments described above is that the capsule needle module is substantially rod-shaped, and the design of this embodiment maximizes the reduction in the amount of suture A used, assuming an increase in the length of the capsule needle module, and achieves cost reduction by designing the capsule needle module in different sizes as needed.

[0031] The operation control member 10 is rod-shaped, and a thread puller 12, which is connected to the operating end of the suture A, is formed at its front end. The front end of the operation control member 10 can slide within the shell 30 relative to the knotting member 20, and an operation control unit 13 is formed at the rear end of the operation control member 10 that protrudes from the shell 30, and the operator operates the operation control unit 13 to pull the operation control member 10 relative to the knotting member 20.

[0032] The capsule needle module further includes a connection portion 23, the position in which the connection portion 23 is formed is not limited, and any structure or member that is installed between the knotting member 20 and the operation control member 10, or between the shell 30 and the operation control member 10, and that can detachably fix the operation control member 10 and prevent it from detaching from the knotting member 20, is within the scope of the present invention.

[0033] Preferably, the connecting portion 23 extends from the rear end of the connecting member 20 and is housed within the shell 30, and at least a portion of the connecting portion 23 and at least a portion of the front end of the operation control member 10 are installed overlapping each other within the shell 30. The connecting portion 23 may be the groove 231 or a rail, and the front end of the operation control member 10 can slide within the shell 30 relative to the connecting portion 23.

[0034] In this embodiment, the connection portion 23 extends toward the rear end to a position adjacent to the operation control unit 13, and an engagement groove 235 is recessed radially on the side of the connection portion 23 corresponding to the operation control member 10. The operation control unit 13 extends toward the front end and includes a connecting rod 131 and a connecting rib 11, and the connecting rod 131 and the connecting rib 11 are installed corresponding to each other with a gap between them, and the position of the connecting rib 11 corresponds to the connection portion 23.

[0035] The front end of the connecting rod 131 is deeply inserted into the shell 30 and connected to the threading rod 12, and the front end of the connecting rib 11 is deeply inserted into the shell 30 and an engaging projection 111 protrudes toward the engaging groove 235. In this way, the operation control unit 10 cannot be detached from the knotting member 20 due to the concave-concave coupling relationship between the engaging projection 111 and the engaging portion 232. When the operation control unit 10 is to be detached from the knotting member 20, pressure is applied to deform the connecting rib 11 and move toward the connecting rod 131, causing the engaging projection 111 to detach from the groove 231 and releasing the concave-concave coupling relationship.

[0036] In another embodiment, the outer diameter of the knotting member 20 gradually decreases from the rear end to the front end to form a tapered shape, and when the capsule needle module corresponds to the suture site by the knotting member 20, the tapered structure can avoid interfering with the operator's field of view and helps the capsule needle module confirm the corresponding position of the front end of the knotting member 20.

[0037] In another embodiment, a contact structure 25 is formed at the front end of the knotting member 20, and a accommodating space 26 is formed between the contact structure 25 and the front end of the knotting member 20. Preferably, the contact structure 25 has an extension portion 251 that extends toward the front end via one of the surfaces of the front end of the knotting member 20, and a contact portion 252 that extends corresponding to the radial direction of the through hole 21 at the front end of the extension portion 251. The space between the extension portion 251, the contact portion 252 and the through hole 21 can define the accommodating space 26, and the size of the accommodating space 26 can be defined by the length of the extension portion 251.

[0038] When not in use, the lengths of the outer shaft 22 and the binding portion 221 are preferably equal to the length of the housing space 26. Preferably, at least a portion of the outer circumference of the end of the binding portion 221 is supported by the contact portion 252, thereby reinforcing the overall structure. Furthermore, the outer circumference of the end of the binding portion 221 and the end face of the contact portion 252 are in contact with each other. The contact structure 25 can assist the operator in aligning the capsule needle module with the suture site, and the outer shaft 22 avoids direct contact with the suture site and contamination by blood or tissue fluid. At the same time, the contact structure 25 can effectively prevent the pre-knot A1 from unexpectedly detaching from the outer shaft 22 when supported by the outer shaft 22.

[0039] In the embodiment in which the outer fitting shaft 22 is fixedly installed within the through hole 21, during the process of forming the fixing knot, the operator needs to obtain sufficient tension to deform the contact structure 25 by pressing it against the pre-knot A1 and causing it to detach from the outer fitting shaft 22 when pulling the operation control member 10 and / or the suture B. In this process, the contact structure 25 prevents the pre-knot A1 from detaching from the outer fitting shaft 22 first, and also prevents situations in which the position of the fixing knot becomes unideal or the quality of the fixing knot is poor and it easily loosens.

[0040] Furthermore, referring to Figures 8a and 8b, Figures 8a and 8b represent the fourth and fifth preferred embodiments provided by the present invention, respectively. The difference from the above embodiments is that the operating member 10 is formed by the operating end of the suture A. In the embodiments shown in Figures 8a and 8b, the capsule needle module includes the knotting member 20, and the knotting member 20 is also provided with a through hole 21. Furthermore, the ends of the through hole 21 are designated as the front end and rear end, and a hollow cylindrical outer fitting shaft 22 protrudes from the through hole 21 toward the front end. The relationship between the outer fitting shaft 22 and the through hole 21 has been explained above, so a further explanation is omitted here.

[0041] The suture A is passed through the through hole and the outer fitting shaft, and both ends of the suture A become 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 outer fitting shaft 22. Similarly, at least a portion of the suture end of the suture A is wrapped around the outer circumference of the outer fitting shaft 22 to form the pre-knot A1, and the movable ring A2 is formed between the outer fitting shaft 22 and the pre-knot.

[0042] At least a portion of the operating end of the knotting member 20 of the suture A is formed with a knot structure A3 as the operating control member 10. In this way, the size of the movable ring A2 is changed based on the distance the knot structure A3 moves relative to the rear end of the knotting member 20. This eliminates the need for the structure of the operating control member 10 described in each of the above embodiments, achieving miniaturization and making it applicable to minimally invasive surgeries such as laparoscopic surgery and da Vinci robotics. When the present invention is miniaturized, the knot structure A3 replaces the operation control member 10, which can solve the manufacturing difficulties caused by the miniaturized operation control member 10 being difficult to connect to the suture A and difficult to attach to the knot member 20. Furthermore, it can solve the difficulty for the operator to accurately grasp the miniaturized operation control member 10, control it, and separate it from the knot member 20, thereby improving the possibility of automated production of the present invention and further advantageously reducing costs.

[0043] In the embodiment shown in Figure 8a, the knot structure A3 is a spherical knot A31 formed at the end of the operating end, and the diameter of the preferred 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 the knotting member 20 abuts against the rear end of the through hole 21. In this way, during use, the knot A31 can be directly pulled, pulling the movable ring A2 to reduce its size and ultimately forming the fixed knot.

[0044] In the embodiment shown in Figure 8b, the difference from Figure 8a is that the knot structure A3 includes a spherical knot A31 and a pull ring A32. In this embodiment, when forming the knot structure A3, first an arbitrary portion of the operating end of the suture A is recessed, and the end of the operating end and at least a portion of the operating end of the suture A are placed on top of each other. The end of the operating end and at least a portion of the operating end jointly form the knot A31. Simultaneously with the formation of the knot A31, the recessed portion of the operating end of the suture A can further restrict the pull ring A32. In this way, when in use, the pull ring A32 can be hooked onto the knot structure A3 using a tool such as an instrument, improving convenience and precision during operation and preventing it from slipping off when pulled.

[0045] The knot structure A3 can be provided in various forms as needed. For example, a crossbar or a flexible annular body may be attached to the knot A31, and the knot structure A3 can be moved with the understanding that the capsule needle module can be easily inserted into the body through a minimally invasive incision, thereby facilitating the formation of the fixed knot.

[0046] To avoid a situation where the knot structure A3 is pulled in an unexpected way, causing the movable ring A2 to contract and making it difficult for the suture ends of the suture needle B and suture thread A to pass through the movable ring during suturing, the knotting member 20 has a large-diameter portion 211 formed at the rear end of the through hole 21, allowing the knot structure A3 to be housed within the large-diameter portion 211.

[0047] Preferably, the diameter of the large-diameter portion 211 is equal to or smaller than the knot A31, and the knot structure A3 is housed within the large-diameter portion 211 by the knot A31. When housed, the knot A31 can generate frictional force with at least a portion of the side wall of the large-diameter portion 211, and the pull ring A32 is exposed at the rear end of the large-diameter portion 211. In this way, the knot structure A3 is housed within the large-diameter portion 211 and is difficult to dislodge. Furthermore, even if the knot structure A3 and / or the pull ring A32 are accidentally pulled, the knot structure A3 is brought into contact with the knot member 20, preventing the movable ring A2 from being unexpectedly retracted.

[0048] The above description is merely a preferred embodiment of the present invention and does not limit the scope of the rights claimed by the present invention. All other equivalent modifications or changes that do not depart from the spirit disclosed herein should be included within the scope of the claims of the present invention. [Explanation of Symbols]

[0049] 10 Operation control member 11 connecting ribs 111 Engagement protrusion 12. Spinning rod 13 Operation Control Unit 131 Connecting Rod 20 Binding members 21 Through hole 211 Large diameter section 22 External fitting shaft 221 Binding section 23 Connection points 231 Groove 232 Engagement site 235 Engagement groove 24 Position regulation hole 25 Contact structure 251 Stretching section 252 Contact part 26 Containment space 30 shells A Suture A1 Prenot A2 Movable Ring A3 knot structure A31 knots A32 Pull Ring B Suture needle C Position regulation string C1 Position control ring

Claims

1. A through hole is provided, with a front end and a rear end defined at both ends of the through hole, and a hollow tubular outer fitting shaft protrudes toward the front end of the through hole, and at least a portion of the outer fitting shaft is fixedly installed within the through hole with a connecting member, The ends are an operating end and a suture end, respectively, passing through the through hole and the outer fitting shaft, and the operating end and the suture end are exposed at the rear end of the through hole and the front end of the outer fitting shaft, respectively. Includes, At least a portion of the suture end of the suture thread is wrapped around the outer circumference of the outer fitting shaft to form a pre-knot, and a movable ring is formed between the outer fitting shaft and the pre-knot. At least a portion of the operating end of the suture thread has a knot structure formed at the rear end of the knotting member. The movable ring changes its size based on the distance the knot structure moves relative to the knot member, during suturing. At least a portion of the suture thread is passed through the movable ring, and the movable ring is retracted by pulling until it adheres to the outer circumference of the outer fitting shaft. The knot structure and the suture end are continuously pulled, creating tension at both ends of the suture thread, and the pre-knot moves toward the front end until it detaches from the outer fitting axis. A capsule needle module characterized in that the pre-knot detaches from the outer fitting shaft and is tied to at least a portion of the movable ring and the suture to form a fixed knot.

2. The capsule needle thread module according to claim 1, characterized in that the diameter formed by the knot structure is larger than the diameter formed by the through hole, and the knot structure is in contact with the rear end of the through hole by the knotting member.

3. The capsule needle thread module according to claim 2, characterized in that the knot structure is a spherical knot, or the knot structure includes a spherical knot and a pull ring connected to the rear end of the knot.

4. The capsule needle thread module according to any one of claims 1 to 3, characterized in that the knotting member includes a large-diameter portion formed at the rear end of the through hole, the diameter of the large-diameter portion being equal to or smaller than the knotting structure, and at least a part of the knotting member is detachably housed in the large-diameter portion.

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

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

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