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 by using a suture thread, 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 and thread, and particularly to a capsule needle and 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 scars 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 in hand, 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, the surgeon needs to wind the surgical suture by hand to form a fixed knot, and the bundling process is complicated. Also, due to the small incision, the operation of winding the surgical suture by hand is hindered, leading to a decline in the quality of the fixed knot. When forming multiple fixed knots 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 prone to splitting, which will affect 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 prone to splitting, affecting the patient's recovery efficiency. The problem is overcome.

Means for Solving the Problems

[0005] The present invention provides a capsule needle and suture module including a control component and a needle set. The control component includes an operation control member installed at the rear end, a connecting member installed at the front end opposite to the operation control member, provided with a through hole, and a hollow tubular outer fitting shaft protruding forward at the through hole, and a suture having one end connected to a part of the operation control member, and the other end of the suture passing through the through hole and the outer fitting shaft and extending to the front end to be exposed outside the capsule needle and suture module.

[0006] In the capsule needle and suture module of the present invention, at least a part of the suture is wound around the outer periphery of the outer fitting shaft to form a pre-knot, a movable ring is formed between the outer fitting shaft and the pre-knot, and the size of the movable ring changes according to the displacement distance of the operation control member with respect to the connecting member.

[0007] In the capsule needle and suture module of the present invention, the connecting member includes a connection part, and the connection part is used for detachably coupling with the operation control member.

[0008] In the capsule needle and suture module of the present invention, the connection part is provided with a groove at the rear end of the connecting member, an engaging part is annularly provided on the inner wall of the groove, the operation control member extends two connecting ribs installed corresponding to each other with a space therebetween toward the groove, and for the two connecting ribs, an engaging convex part protrudes in the radial direction corresponding to the engaging part, and the engaging convex part corresponds to the engaging part in terms of concavity and convexity.

[0009] In the capsule needle and suture module of the present invention, the connecting member is provided with a position regulating hole at the front end, a position regulating string protrudes forward at the position regulating hole, at least a part of the position regulating string protruding from the position regulating hole forms a position regulating ring, and at least a part of the position regulating ring and the pre-knot or the movable ring are hooked to each other.

[0010] In the capsule needle and thread module of the present invention, the through hole and the position regulating hole are provided in the tying member in parallel with each other and communicate with the groove. The position regulating string is recessed and installed in the position regulating hole, both ends thereof protrude into the groove, a position regulating ring is formed at the recessed portion of the position regulating string and protrudes toward the front end of the position regulating hole, and is hooked with the prenot. When the operation control member is coupled to the connection portion, at least a part of the operation control member presses both ends of the position regulating string between the connection portions.

[0011] In the capsule needle and thread module of the present invention, the tying member includes the contact structure including an extension portion extending from any surface of the tying member to the front end, and a contact portion extends in the radial direction corresponding to the through hole at the front end of the extension portion, and the outer periphery of the end protruding from the through hole of the externally fitted shaft and the end surface of the contact portion are in contact with each other.

[0012] In the capsule needle and thread module of the present invention, it includes a shell covering at least a part of the front end of the operation control member and at least a part of the rear end of the tying member. A thread pulling rod is formed at the front end of the operation control member, one end of the sewing thread is tied to the thread pulling rod, an operation control portion is formed at a portion protruding from the shell at the rear end of the operation control member, the operation control portion and the thread pulling rod are connected via a connecting rod, the connection portion extends to the position of the operation control portion at the rear end of the tying member, at least a part of the connection portion and at least a part of the front end of the operation control member are overlapped and installed in the case, and the front end of the operation control member slides in the shell relative to the connection portion. An engaging groove is recessed in the radial direction with respect to one side surface of the operation control member in the connection portion.

[0013] In the capsule needle and thread module of the present invention, a connection rib extends corresponding to the connection portion for the operation control member, and the connection rib and the connection rod are installed corresponding to each other with a gap therebetween. The front end of the connection rib enters the shell, and an engaging convex portion protrudes toward the engaging groove.

[0014] Furthermore, the end of the suture thread exposed from the capsule needle thread module is connected to the suture needle.

[0015] Furthermore, the operation control member includes a thread pulling rod installed in the radial direction, and one end of the suture thread is tied to the thread pulling rod.

[0016] Furthermore, the two connection ribs are formed by extending from both ends of the thread pulling rod toward the front end, and the suture thread passes through the through hole, the groove, and between the two connection ribs in sequence and is tied and fixed to the thread pulling rod.

[0017] Furthermore, at least a part protruding from the through hole of the outer fitting shaft is a binding part, and the length of the binding part changes according to the relative position displaced along the through hole of the outer fitting shaft.

[0018] Furthermore, the outer diameter of the knotting member gradually decreases from the rear end to the front end to form a tapered shape.

[0019] During the operation of the capsule needle thread 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 needle through the movable ring. After the suture is completed, 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 shrink until the movable ring adheres to the outer periphery of the outer fitting shaft.

[0020] Next, continue to operate the operation control member and / or continue to pull the suture needle synchronously to generate tension at both ends of the suture thread, detach the prenot from the outer fitting shaft, and tie it to the movable ring and the suture thread passing through the movable ring to form a fixed knot.

Advantages of the Invention

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows. The capsule needle and thread module of the present invention has a simple structure, can be designed in different sizes as required, can be reduced to be suitable for minimally invasive surgery, assists the operator to complete the continuous suture and knotting processes in a narrow space, optimizes the surgical process and the quality of suture and knotting, and the capsule needle and thread module achieves the effect of cost reduction by maximizing the reduction of the usage fee of the suture on the premise of increasing the length.

[0022] The abutting structure assists the operator to align the capsule needle and thread module with the suture site, and avoids the outer fitting shaft from directly contacting the suture site and being contaminated by blood or tissue fluid. At the same time, when the abutting structure is supported by the outer fitting shaft, it can effectively avoid the prenot from unexpectedly detaching from the outer fitting shaft.

[0023] Particularly, when the outer fitting shaft is fixedly installed in the through hole, during the process of forming the fixed knot, when the operator pulls the operation control member and / or the suture thread, it is necessary to obtain sufficient tension to press and deform the abutting structure on the prenot to make it detach from the outer fitting shaft. In this process, the abutting structure avoids the prenot from detaching from the outer fitting shaft first, and further avoids the occurrence of a situation where the position of the fixed knot is not ideal or the quality of the fixed knot is not good and it is easily loosened.

Brief Description of the Drawings

[0024]

Figure 1

Figure 2

Figure 3a

Figure 3b

Figure 4

Figure 5

Figure 6

Figure 7a

Figure 7b

Embodiments for Carrying out the Invention

[0025] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, hereinafter, in combination with the drawings in the embodiments of the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described. 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 by those skilled in the art without creative labor belong to the protection scope of the present invention.

[0026] Figures 1 to 3b show the first preferred embodiment of the capsule needle thread module provided by the present invention, including an operation control member 10 and a knotting member 20 arranged axially. The operation control member 10 is installed at the rear end, and the knotting member 20 is installed at the front end. The knotting member 20 is provided with a through hole 21 through which the sewing thread A can pass, and the operation end of the sewing thread A is connected to any part of the operation control member 10. The method of connecting the sewing thread A to the operation control member 10 is not limited and may be adhesive fixation or binding fixation. In this embodiment, the operation control member 10 includes a thread pulling rod 12 installed in the radial direction, and the operation end of the sewing thread A can be bound to the thread pulling rod 12.

[0027] In the through hole 21 of the tying member 20, an externally fitted shaft 22 protruding from the front end is installed, and the externally fitted shaft 22 is hollow and tubular. The other end of the suture A opposite to the operating end is a suture end. After passing through the through hole 21 and the externally fitted shaft 22 at the suture end, the suture A extends toward the front end and is exposed outside the capsule needle suture module. The suture end of the suture A exposed outside the capsule needle suture module is wound around the outer periphery of the externally fitted shaft 22, forming a pre-knot A1 and a movable ring A2 formed between the externally fitted shaft 22 and the pre-knot A1. The suture A has a suture needle B connected to the end of the suture end and is used to suture and fix tissue wounds.

[0028] In the first embodiment, at least a part of the externally fitted shaft 22 is fixedly installed in the through hole 21. During the operation of the capsule needle suture module, the operator aligns the front end of the tying member 20 with the expected suture location and passes it through the movable ring A2. Further, during suturing, another suture different from the suture A may be used for suturing and passed through the movable ring A2. After suturing is completed, the operator operates the operation control member 10 to separate it from the tying member 20, pulls the operating end of the suture A through the operation control member 10, and reduces the movable ring A2 until at least a part of the movable ring A2 is attached to the outer periphery of the externally fitted shaft 22. Next, continue to operate the operation control member 10 and / or continuously pull the suture needle B synchronously to generate tension at both ends of the suture A, detach the pre-knot A1 from the externally fitted shaft 22, and bind the movable ring A2 and the suture A passing through the movable ring A2 to form a fixed knot.

[0029] In another embodiment, the externally fitted shaft 22 can be displaced along the through hole 21, and according to the position relative to the through hole 21, the length protruding from the front end of the through hole 21 is changed. At least a part of the externally fitted 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, the externally fitted shaft 22 is pressed and moved into the through hole 21, and when the externally fitted shaft 22 completely enters the through hole 21, the prenot A1 is detached from the externally fitted shaft 22, and is bound to the movable ring A2 and the suture A passing through the movable ring A2, forming the fixed knot.

[0030] In another embodiment, the knot member 20 includes a connection part 23, and the connection part 23 is detachably coupled to the operation control member 10 to prevent the operation control member 10 from being pulled in an unexpected state. The method of coupling the connection part 23 of the knot member 20 and the operation control member 10 is not limited. It may be by a combination of unevenness, or a coupling member may be installed between the connection part 23 and the operation control member 10 and detachably combined.

[0031] In this embodiment, a groove 231 is recessed at the rear end of the knot member 20 as a connection part 23, and at least a part of the inner wall of the groove 231 is recessed with an annular engagement part 232 in the radial direction. The operation control member 10 is formed with two connection ribs 11 extending toward the front end and installed at intervals corresponding to each other, and the longest distance formed between the two connection ribs 11 is slightly smaller than the diameter of the groove 231. And the operation control member 10 can be detachably inserted into the groove 231 of the knot member 20 using the two connection ribs 11. Preferably, the groove 231 of the knot member 20 communicates with the rear end of the through hole 21, and the two connection ribs 11 are formed by extending from both ends of the thread pulling rod 12 of the operation control member 10 toward the front end, and the operation end of the suture A can be sequentially bound and fixed to the thread pulling rod 12 through the through hole 21, the groove 231 and the gap between the two connection ribs.

[0032] The position corresponding to the engaging portion 232 at the front ends of the two connecting ribs 11 has an engaging convex portion 111 protruding in the radial direction. When the two connecting ribs 11 are installed in the groove 231, the engaging convex portion 111 is correspondingly received in the engaging portion 232, and the operation control member 10 cannot be detached from the tying member 20 due to the concave-convex coupling relationship between the engaging convex portion 111 and the engaging portion 232.

[0033] For example, during operation, when pulling the operation control member 10 away from the tying member 20, pressure is applied to the two connecting ribs 11 to make them approach and deform relative to each other, so that the engaging convex portion 111 is detached from the groove to release the concave-convex coupling relationship, and the operation control member 10 can be detached from the tying member 20. The capsule needle and thread module of the present invention has a simple structure, can effectively reduce the overall volume to be suitable for minimally invasive surgery, assist the operator to complete continuous suturing and tying procedures in a narrow space, and can optimize the surgical process and the quality of suturing and tying.

[0034] Next, referring to the second preferred embodiment shown in FIG. 4, the difference from the first embodiment is that the tying member 20 further includes a position regulating hole 24 at the front end, and the position regulating string C protrudes toward the front end in the position regulating hole 24. At least a part of the position regulating string C protruding from the position regulating hole 24 forms a position regulating ring C1, and at least a part of the position regulating ring C1 is hooked with the prenot A1 and / or the movable ring A2 to prevent the prenot A1 and the movable ring A2 from detaching from the outer fitting shaft 22 in an unexpected situation.

[0035] In this embodiment, the through hole 21 and the position regulating hole 24 are provided in the connecting member 20 in parallel with each other, and the rear ends of the through hole 21 and the position regulating hole 24 are both communicated with the groove 231. The position regulating string C is installed recessed in the position regulating hole 24, and both ends of the position regulating string C project into the groove 231 toward the rear end of the position regulating hole 24. The position regulating ring C1 formed after being recessed projects toward the front end of the position regulating hole 24 and is hooked with the prenot A1. When the operation control member 10 is coupled to the connection part 23 of the connecting member 20 with concavity and convexity corresponding to each other, at least a part of the operation control member 10 presses both ends of the position regulating string C between the connection parts 23. In this way, the position regulating string C releases when it is necessary for the operation control member 10 to be detached from the connecting member 20 again, releases the prenot A1, and then forms the fixed knot.

[0036] Furthermore, referring to FIGS. 5 to 7b, the third preferred embodiment provided by the present invention includes an operation control member 10, the connecting member 20 and a shell 30. The shell 30 covers at least a part of the front end of the operation control member 10 and at least a part of the rear end of the connecting member 20. The difference from the foregoing embodiments is that the capsule needle and thread module is substantially rod-shaped. With the design of this embodiment, on the premise of increasing the length of the capsule needle and thread module, the usage amount of the suture A is reduced to the maximum extent, and the capsule needle and thread module is designed in different sizes as required to achieve the effect of cost reduction.

[0037] The operation control member 10 is rod-shaped, and a thread pulling rod 12 connected to the operation end of the suture A is formed at the front end thereof. The front end of the operation control member 10 can slide in the shell 30 relative to the connecting member 20, and an operation control part 13 is formed at the part where the rear end of the operation control member 10 protrudes from the shell 30. The operator operates the operation control part 13 to move the operation control member 10 relative to the connecting member 20.

[0038] The capsule needle and thread module further includes a connection part 23. The position where the connection part 23 is formed is not limited. It can be installed between the tying member 20 and the operation control member 10, or installed between the shell 30 and the operation control member 10. Any structure or member that can removably fix the operation control member 10 and prevent it from detaching from the tying member 20 is included in the scope of the present invention.

[0039] Preferably, the connection part 23 extends from the rear end of the tying member 20 and is accommodated in the shell 30, and at least a part of the connection part 23 and at least a part of the front end of the operation control member 10 are installed overlapping each other in the shell 30. The connection part 23 may be the groove 231 or the rail, and the front end of the operation control member 10 can be slid relative to the connection part 23 in the shell 30.

[0040] In this embodiment, the connection part 23 extends to a position adjacent to the operation control part 13 toward the rear end, and an engaging groove 235 is recessed in the radial direction on the side surface of the connection part 23 corresponding to the operation control member 10. The operation control part 13 extends toward the front end and includes a connection rod 131 and a connection rib 11. The connection rod 131 and the connection rib 11 are installed corresponding to each other with a space therebetween, and the position of the connection rib 11 corresponds to the connection part 23.

[0041] The front end of the connection rod 131 deeply enters into the shell 30 and is connected to the thread pulling rod 12. The front end of the connection rib 11 deeply enters into the shell 30 and an engaging convex part 111 protrudes toward the engaging groove 235. In this way, the operation control member 10 cannot detach from the tying member 20 due to the concave-convex coupling relationship between the engaging convex part 111 and the engaging part 232. When detaching the operation control member 10 from the tying member 20, pressure is applied to deform the connection rib 11 and move it toward the connection rod 131, so that the engaging convex part 111 can detach from the groove 231 and the concave-convex coupling relationship can be released.

[0042] In another embodiment, the outer diameter of the knot member 20 gradually decreases from the rear end to the front end to form a tapered shape. When the capsule needle and thread module corresponds to the suture location by the knot member 20, the tapered structure can avoid interfering with the operator's field of view and assist in confirming the corresponding position at the front end of the knot member 20 for the capsule needle and thread module.

[0043] In another embodiment, an abutting structure 25 is formed at the front end of the knot member 20, and an accommodating space 26 is formed between the abutting structure 25 and the front end of the knot member 20. Preferably, the abutting structure 25 has an extension portion 251 extending towards the front end through any surface at the front end of the knot member 20, and an abutting portion 252 extending 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 abutting 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.

[0044] Preferably, the lengths of the externally fitted shaft 22 and the bundling portion 221 when not in use are equal to the length of the accommodating space 26. Preferably, at least a part of the outer periphery of the end of the bundling portion 221 is supported by the abutting portion 252, strengthening the overall structure. Further, the outer periphery of the end of the bundling portion 221 and the end surface of the abutting portion 252 are in contact with each other. The abutting structure 25 can assist the operator in aligning the capsule needle and thread module with the suture location, and the externally fitted shaft 22 can avoid directly contacting the suture location and being contaminated by blood or tissue fluid. At the same time, when supported by the externally fitted shaft 22, the abutting structure 25 can effectively avoid the prenot A1 from detaching from the externally fitted shaft 22 in an unexpected state.

[0045] In the embodiment in which the outer fitting shaft 22 is fixedly installed in the through hole 21, in the process of forming the fixing knot, when the operator pulls the operation control member 10 and / or the suture B, the operator needs to obtain a sufficient tension for the pre-knot A1 to press the abutment structure 25 to deform and separate from the outer fitting shaft 22. In this process, the abutment structure 25 prevents the pre-knot A1 from being separated from the outer fitting shaft 22 beforehand, and further prevents the occurrence of a situation in which the position of the fixing knot is not ideal or the quality of the fixing knot is not good and it is easily loosened.

[0046] 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. Any other equivalent changes or modifications that do not depart from the spirit disclosed in the present invention should be included in the scope of the claims of the present invention. [Explanation of symbols]

[0047] 10 Operation control member 11 Connecting rib 111 Engagement protrusion 12 Thread Pulling Rod 13 Operation control section 131 Connecting rod 20 Tie-down members 21 Through hole 22 External fitting shaft 221 Binding section 23 Connection site 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 Shell A suture A1 Preknot A2 Movable ring B Suture needle C Position regulation string C1 Position control ring

Claims

1. A capsule suture module, comprising: An operation control member installed at the rear end; A knotting member installed at the front end relative to the operation control member, provided with a through hole, and a hollow tubular outer fitting shaft protruding toward the front end in the through hole; A suture having one end connected to a part of the operation control member, and the other end of the suture passing through the through hole and the outer fitting shaft and extending to the front end to be exposed outside the capsule suture module; Including: At least a part of the suture is wound around the outer periphery 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; The movable ring is characterized in that its size changes according to the displacement distance of the operation control member relative to the knotting member.

2. The knotting member includes a connection part, and the connection part is used for detachably coupling with the operation control member. The capsule suture module according to claim 1.

3. The connection part has a groove provided at the rear end of the knotting member, and an engaging part is provided annularly on the inner wall of the groove. The operation control member has two connection ribs extending with a space therebetween toward the groove and corresponding to each other. The two connection ribs have engaging convex parts protruding radially corresponding to the engaging part, and the engaging convex parts correspond to the engaging part in concavo-convexity. The capsule suture module according to claim 2.

4. The knotting member includes the contact structure including an extension part extending from any surface of the knotting member to the front end. The front end of the extension part has a contact part extending radially corresponding to the through hole. The outer periphery of the end protruding from the through hole of the outer fitting shaft and the end surface of the contact part are in contact with each other. The capsule suture module according to claim 2.

5. The operation control member includes a thread pulling rod installed radially. One end of the suture is tied to the thread pulling rod. The capsule suture module according to any one of claims 1 to 4.

6. The two connection ribs are formed by extending from both ends of the thread pulling rod toward the front end. The suture passes sequentially between the through hole, the groove and the two connection ribs and is tied and fixed to the thread pulling rod. The capsule suture module according to claim 5.

7. It includes a shell that covers at least a part of the front end of the operation control member and at least a part of the rear end of the tying member. A thread pulling rod is formed at the front end of the operation control member. One end of the suture is tied to the thread pulling rod. An operation control part is formed at a position protruding from the shell at the rear end of the operation control member. The operation control part and the thread pulling rod are connected via a connecting rod. The connecting part extends to the position of the operation control part at the rear end of the tying member. At least a part of the connecting part and at least a part of the front end of the operation control member are overlapped and installed in the case. The front end of the operation control member slides in the shell relative to the connecting part. A engaging groove is recessed in the radial direction on one side surface of the operation control member with respect to the connecting part. The operation control member has a connecting rib extending corresponding to the connecting part. The connecting rib and the connecting rod are installed corresponding to each other with a space therebetween. The front end of the connecting rib enters the shell, and an engaging convex part protrudes toward the engaging groove. The capsule needle and thread module according to claim 2 or 4, characterized in that.

8. At least a part protruding from the through hole of the outer fitting shaft is a binding part. The binding part changes its length according to the relative position displaced along the through hole of the outer fitting shaft. During suturing, At least a part of the suture is passed through the movable ring. The movable ring is reduced in size by pulling until it adheres to the outer periphery of the outer fitting shaft. The movable ring continues to shrink and pushes the outer fitting shaft to move it into the through hole. The length of the binding part is gradually reduced. When the outer fitting shaft completely enters the through hole, the pre-knot disengages from the outer fitting shaft and is bound to at least a part of the movable ring and the suture, forming the fixed knot. The capsule needle and thread module according to claim 2 or 4, characterized in that.

9. At least a part of the outer fitting shaft is fixedly installed in the through hole. During suturing, At least a part of the suture is passed through the movable ring. The movable ring is reduced in size by pulling until it adheres to the outer periphery of the outer fitting shaft. Continuously pull the operation control member, and the pre-knot moves toward the front end until it disengages from the outer fitting shaft. The capsule needle and thread module according to any one of claims 1 to 4, characterized in that the prenot detaches from the externally fitted shaft, is bound to at least a part of the movable ring and the suture thread, and forms the fixed knot.

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

Images