Capsule needle and thread module

Abstract

The present invention provides a capsule needle and thread module, comprising a control assembly and a needle set. A suture thread is used for forming a movable loop at the front end of the needle set, and an operator operates the control assembly, so that the movable loop at the front end of the needle set is tightened to form a fixed knot, thereby achieving the purpose of suturing and fixing a tissue wound.

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 needle and thread module, which includes a control component and a needle group, wherein the control component includes: a control member arranged at a rear end; a knotting member arranged at a front end relative to the control member, the knotting member is penetrated by a through-hole, and a hollow tubular sleeve shaft protrudes from the through-hole toward the front end; and a suture, one end of the suture is connected to any part of the control member, and the other end of the suture passes through the through-hole and the sleeve shaft, extending toward the front end and being exposed outside the capsule needle and thread module.

[0007] At least a portion of the suture is wound 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; and the movable loop changes size according to the distance the operating member moves relative to the knotting member.

[0008] The knotting piece includes a connecting portion, and the connecting portion is used for detachably combining with the operating piece.

[0009] Among them, the connection is located at the rear end of the knotting piece with a groove, the inner wall of the groove is annularly recessed with a locking position, and the operating member extends toward the groove with two connecting ribs that are spaced apart from each other and arranged correspondingly. The two connecting ribs have a locking convex portion protruding radially corresponding to the locking position, and the locking convex portion corresponds to the convex-concave of the locking position.

[0010] Among them, the knotting piece is provided with a limiting hole at the front end, a limiting rope protrudes toward the front end in the limiting hole, at least a portion of the limiting rope protruding from the limiting hole forms a limiting ring, and at least a portion of the limiting ring is hooked with the pre-knot or the movable loop.

[0011] Among them, the through hole and the limiting hole are parallel to each other and are penetrated through the knotting piece and are connected to the groove; the limiting rope is concavely arranged in the limiting hole, and its two ends protrude into the groove, and the concave part of the limiting rope forms the limiting ring which protrudes toward the front end of the limiting hole and hooks with the pre-knot; and when the operating member is combined with the connecting position, at least a part of the operating member presses the two ends of the limiting rope between the connecting position.

[0012] In which, the knotting piece includes a resistance structure, including an extension section extending toward the front end on any surface of the knotting piece, and the front end of the extension section has a resistance section corresponding to the radial extension of the through hole, wherein the outer periphery of the end of the sleeve shaft protruding from the through hole abuts against the end face of the resistance section.

[0013] Among them, it includes a shell covering at least a part of the front end of the operating piece and at least a part of the rear end of the knotting piece, a pull rod is formed at the front end of the operating piece, one end of the suture is tied to the pull rod, and the rear end of the operating piece protrudes from the shell to form a operating part, and the operating part is connected to the pull rod through a connecting rod; and the connection is located at the rear end of the knotting piece and extends to a position adjacent to the operating part, at least a part of the connection position and at least a part of the front end of the operating piece are overlapped with each other in the shell, and the front end of the operating piece slides in the shell relative to the connection position, and the connection position is radially recessed with a locking groove on one side surface corresponding to the operating piece.

[0014] The control portion has a connecting rib extending corresponding to the connecting position, and the connecting rib and the connecting rod are spaced apart and arranged correspondingly, and the front end of the connecting rib penetrates into the housing and has a locking protrusion protruding toward the locking groove.

[0015] Furthermore, the end of the suture thread exposed from the capsule sewing module is connected to a suture needle.

[0016] Furthermore, the control member includes a radially arranged pull rod, and one end of the suture thread is tied to the pull rod.

[0017] Furthermore, two connecting ribs are formed at both ends of the pull rod and extend toward the front end, and the suture thread passes through the through hole, the groove and between the two connecting ribs in sequence to be tied and fixed to the pull rod.

[0018] Furthermore, at least a portion of the sleeve shaft protruding from the through hole is a binding wire segment, and the length of the binding wire segment changes according to the relative position of the sleeve shaft along the displacement of the through hole.

[0019] Furthermore, the outer diameter of the knotting piece gradually decreases from the rear end to the front end to form a cone-like shape.

[0020] 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.

[0021] 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.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 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.

[0024] 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.

[0025] 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

[0026] FIG1 is a perspective view of a first preferred embodiment of the present invention;

[0027] FIG2 is an exploded view of a first preferred embodiment of the present invention;

[0028] FIG3a is a first action diagram of the first preferred embodiment of the present invention;

[0029] FIG3 b is a second action diagram of the first preferred embodiment of the present invention;

[0030] FIG4 is a partial cross-sectional view of a second preferred embodiment of the present invention;

[0031] FIG5 is a perspective view of a third preferred embodiment of the present invention;

[0032] FIG6 is an exploded view of a third preferred embodiment of the present invention;

[0033] FIG7a is a first action diagram of the third preferred embodiment of the present invention;

[0034] FIG7 b is a second action diagram of the third preferred embodiment of the present invention.

[0035] Explanation of symbols:

[0036] 10 control parts

[0037] 11 connecting ribs

[0038] 111 engagement protrusion

[0039] 12 Pull rod

[0040] 13 Control Department

[0041] 131 connecting rod

[0042] 20 knotted pieces

[0043] 21 piercings

[0044] 22 sets of shafts

[0045] 221 binding line segment

[0046] 23 connection positions

[0047] 231 grooves

[0048] 232 card position

[0049] 235 snap-in groove

[0050] 24 limit holes

[0051] 25 Resistance Structure

[0052] 251 extension

[0053] 252 Resistance Stage

[0054] 26 storage space

[0055] 30 shells

[0056] A suture

[0057] A1 Pre-knotted

[0058] A2 movable ring

[0059] B needle

[0060] C limit rope

[0061] C1 limit ring DETAILED DESCRIPTION

[0062] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 making creative efforts shall 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 a lower 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 piece 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 piece 10 to move away from the knotting piece 20, so that the operating end of the suture line A is pulled through the operating piece 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 farthest 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 way, 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, so that the overall structure is strengthened. 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] 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 control member is provided at a rear end; A knotting member is disposed at a front end relative to the operating member, the knotting member having a through hole, and a hollow tubular shaft protruding from the through hole toward the front end; as well as A suture, one end of which is connected to any part of the control member, and the other end of which passes through the through hole and the sleeve shaft and extends toward the front end and is exposed outside the capsule sewing module, wherein: At least a portion of the suture is wound 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; and The movable ring changes size according to the displacement distance of the operating member relative to the knotting member.

2. The capsule sewing module according to claim 1, characterized in that: The knotting piece includes a connecting portion, and the connecting portion is used for detachably combining with the operating piece.

3. The capsule sewing module according to claim 2, characterized in that: The connection is located at the rear end of the knotting piece and is provided with a groove, the inner wall of the groove is annularly recessed with a locking position, and the operating piece extends toward the groove and has two connecting ribs spaced apart from each other and arranged correspondingly, the two connecting ribs have a locking convex portion protruding radially corresponding to the locking position, and the locking convex portion corresponds to the locking position concave and convex.

4. The capsule sewing module according to claim 2, characterized in that: The knotting piece includes a resisting structure, including an extension section extending toward the front end on any surface of the knotting piece, and the front end of the extension section has a resisting section corresponding to the radial extension of the through hole, wherein the outer periphery of the end of the sleeve shaft protruding from the through hole abuts against the end face of the resisting section.

5. The capsule sewing module according to any one of claims 1 to 4, characterized in that: The control component comprises a pull rod arranged radially, and one end of the suture thread is tied to the pull rod.

6. The capsule sewing module according to claim 5, characterized in that: Two connecting ribs are formed at both ends of the pull rod and extend toward the front end. The suture line passes through the through hole, the groove and between the two connecting ribs in sequence and is tied and fixed to the pull rod.

7. The capsule sewing module according to claim 2 or 4, characterized in that: The invention comprises a shell covering at least a portion of the front end of the operating member and at least a portion of the rear end of the knotting member, wherein: A pull rod is formed at the front end of the operating member, one end of the suture thread is tied to the pull rod, and a control portion is formed at the rear end of the operating member protruding from the housing, and the control portion is connected to the pull rod via a connecting rod; and The connection is located at the rear end of the knotted piece and extends to a position adjacent to the operating part. At least a portion of the connection position and at least a portion of the front end of the operating piece are overlapped with each other in the shell, and the front end of the operating piece slides relative to the connection position in the shell. A radial engagement groove is provided on a side surface of the connection position corresponding to the operating piece. The control portion has a connecting rib extending corresponding to the connecting position, and the connecting rib and the connecting rod are spaced apart and arranged correspondingly, and the front end of the connecting rib penetrates into the housing and has a locking protrusion protruding toward the locking groove.

8. The capsule sewing module according to any one of claims 1 to 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: Pass at least a portion of the suture 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 loop 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 4, characterized in that: At least a portion of the sleeve shaft is fixedly disposed in the through hole, wherein during suturing: Pass at least a portion of the suture 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 loop and at least a portion of the suture to form the fixed knot.

10. The capsule sewing module according to any one of claims 1 to 4, characterized in that: The suture end of the suture thread is connected with a suture needle.