Multi-functional suture hook

Abstract

The utility model relates to medical operation instrument technical field, concretely provides a multifunctional suture hook, aims at solving the problem that the tip of existing suture hook is easy to shift in the step of executing guide line push through line, wire arrangement, knotting, thereby increasing the complexity and difficulty of knotting operation. For this purpose, the utility model provides a multifunctional suture hook, the multifunctional suture hook includes handle and needle tube, the needle tube includes needle stem part and hook part, the first end of needle stem part is connected with handle, the second end is connected with hook part, the hook part includes puncture part and connecting part, the first end of puncture part constitutes tip structure, the second end is provided with fixed part. The multifunctional suture hook provided by the utility model is fixed on human body tissue through the fixed part of setting to avoid the shift of puncture part in the operation process, thereby avoiding the position deviation of guide line before knotting, and reducing the operation difficulty of suture in arthroscopy operation process.

Description

Technical Field

[0001] This utility model relates to the field of medical surgical instruments, specifically providing a multifunctional suture hook. Background Technology

[0002] A suture hook is a commonly used surgical instrument for arthroscopic suturing procedures. When using a suture hook, a suture-passing technique is employed: first, the tip of the suture hook penetrates one side of the tear; then, a guide suture passes through the hollow structure inside the suture hook and exits through the hole at the tip; next, the anchor suture on the anchor pin is grasped inside the joint to complete suture management, and the anchor suture is knotted with the guide suture; finally, the knotted suture is pulled from the penetration point across both sides of the tear.

[0003] However, during the steps of pushing, arranging, and knotting the sutures, the tip of the suture hook is prone to displacement, causing the guide suture to shift position. This increases the complexity and difficulty of the suture passing technique, thus prolonging the operation time and increasing the operational difficulty. Furthermore, the anchor sutures in this step are prone to significant displacement, further increasing the difficulty of grasping the anchor sutures, which also hinders the shortening of operation time and the simplification of the procedure. Utility Model Content

[0004] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem that the tip of the existing sewing hook is prone to displacement during the steps of pushing the thread, organizing the thread, and tying the knot, thereby increasing the complexity and difficulty of the knotting operation.

[0005] This utility model provides a multifunctional suture hook, which includes a handle and a needle tube. The needle tube includes a needle shank and a hook. A first end of the needle shank is connected to the handle, and a second end of the needle shank is connected to the hook. The hook includes a puncture portion and a connecting portion. The first end of the puncture portion forms a pointed structure, and the second end of the puncture portion is connected to the second end of the needle shank through the connecting portion. A fixing portion is provided at the second end of the puncture portion, which is configured to fix the puncture portion to human tissue.

[0006] In some feasible embodiments of the multifunctional suture hook described above, the fixing part is a pointed edge structure that is continuously or intermittently arranged circumferentially along the second end of the puncture portion.

[0007] In some feasible embodiments of the multifunctional suture hook described above, the tip of the pointed structure extends axially toward the connecting portion along the puncture portion.

[0008] In some feasible embodiments of the multifunctional suture hook described above, the pointed edge structure is circumferentially spaced along the second end of the puncture portion, and its tip extends circumferentially along the puncture portion.

[0009] In some feasible embodiments of the multifunctional suture hook described above, the puncture portion and the fixation portion are integrally formed.

[0010] In some feasible embodiments of the multifunctional suture hook described above, the puncture portion is shaped like a cone or a pyramid.

[0011] In some feasible embodiments of the multifunctional suture hook described above, the side of the puncture portion is provided with a groove structure adapted to the suture.

[0012] In some feasible embodiments of the multifunctional suture hook described above, the handle is provided with an inlet hole, the first end of the puncture part is provided with an outlet hole, and the inlet hole is connected to the outlet hole through a first channel inside the handle and a second channel inside the needle tube in sequence.

[0013] In some feasible embodiments of the multifunctional suture hook described above, the axis of the needle shank is set at an angle to the axis of the hook.

[0014] In some feasible embodiments of the multifunctional suture hook described above, a knob is provided on the side of the handle. The knob is connected to the first end of the needle bar through a transmission mechanism inside the handle, so that the knob can drive the hook to rotate around the axis of the needle bar through the transmission mechanism and the needle bar.

[0015] The multifunctional suture hook provided by this utility model has a fixing part for fixing the puncture part to human tissue, thereby preventing the puncture part from shifting during the operation and thus preventing the guide suture from shifting before knotting. This reduces the difficulty of suturing during arthroscopic surgery, especially reducing the complexity and difficulty of pushing the suture, arranging the suture, and knotting the suture in arthroscopic suturing operations, which is conducive to shortening the operation time. Attached Figure Description

[0016] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0017] Figure 1 This is a structural schematic diagram of the multifunctional sewing hook of this utility model;

[0018] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle;

[0019] Figure 3This is a cross-sectional view of the hook, transition, and needle bar of this utility model, wherein some structures of the needle bar are omitted;

[0020] Figure 4 This is a cross-sectional view of the hook portion of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the first embodiment of the hook part of this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the hook part of the present invention in a second embodiment;

[0023] Figure 7 This is a structural schematic diagram of the third embodiment of the hook part of this utility model;

[0024] Figure 8 This is a schematic diagram of the structure of the multifunctional suture hook of this utility model, in which the needle tube and handle are omitted.

[0025] Figure 9 This is the first step in the usage example of the multifunctional sewing hook of this utility model;

[0026] Figure 10 This is the second step in the usage example of the multifunctional sewing hook of this utility model;

[0027] Figure 11 This is the third step in the usage example of the multifunctional sewing hook of this utility model;

[0028] Figure 12 This is the fourth step in the usage example of the multifunctional sewing hook of this utility model;

[0029] Figure 13 This is the fifth step in the usage example of the multifunctional sewing hook of this utility model;

[0030] Figure 14 This is the sixth step in the usage example of the multifunctional sewing hook of this utility model.

[0031] List of reference numerals in the attached diagram:

[0032] 1-Needle; 11-Hook; 111-Punch section; 1111-Tip structure; 1112-Fixing section; 1113-Thread groove structure; 1114-Thread outlet hole; 112-Connecting section; 12-Needle bar; 121-Fourth gear section; 13-Transition section; 14-Second channel; 2-Handle; 21-Thread inlet hole; 22-First channel; 23-Knob; 231-First drive shaft; 2311-First gear section; 24-Second drive shaft; 241-Second gear section; 242-Third gear section; 25-Anti-slip texture; 300-Human tissue; 310-Opening; 320-Wound; 400-Inside tissue cavity; 500-Guide suture; 600-Anchor; 610-First anchor suture; 620-Second anchor suture; 630-Third anchor suture; 640-Fourth anchor suture. Detailed Implementation

[0033] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0034] It should be noted that in the description of this utility model, terms such as "upper", "lower", "inner", and "outer" that indicate direction or positional relationship are based on the direction or positional relationship shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0035] Furthermore, it should be noted that in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal connection of two components, and so on. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. In addition, the numerical terms used herein, such as "first," "second," "third," and "fourth," are primarily (only) used to distinguish multiple similar objects, quantities, or processes; that is, they do not necessarily indicate any dependency and / or order between these objects, quantities, or processes. If a dependency and / or order is required, it will be explicitly stated in the context, or it will be obvious to those skilled in the art when understanding the specific embodiments.

[0036] It should be noted that the multifunctional suture hook in this embodiment is particularly suitable for treating torn human tissue, such as tissue tears caused by trauma. However, the application scope of this invention is not limited to this; it is also applicable to other human tissues requiring suturing, such as surgical incisions, wounds, or other human tissues requiring repair.

[0037] like Figure 1 As shown, this embodiment of the utility model provides a multifunctional suture hook, which includes a handle 2 and a needle tube 1 connected to each other in a back-to-front direction. The handle 2 is for the user to grip, and the outer peripheral surface of the handle 2 is provided with anti-slip texture 25, thereby increasing the friction of the outer peripheral surface of the handle 2, making the handle 2 easier to grip and control, and reducing the risk of the handle 2 slipping from the hand. Figure 8 As shown, the outer peripheral surface of the handle 2 is also provided with an inlet hole 21 for the guide wire to pass through. The internal structure of the handle 2 has a first channel 22 for the guide wire to pass through. The inlet hole 21 is connected to the first channel 22, so that the guide wire can pass from the outside of the handle 2 through the inlet hole 21 into the first channel 22.

[0038] like Figures 1 to 4 As shown, the front end of the needle tube 1 has a tip structure 1111 for puncturing human tissue. The front end of the needle tube 1 also has an outlet hole 1114 for a guide wire to pass through. The internal structure of the needle tube 1 includes a second channel 14 for the guide wire to pass through. The outlet hole 1114 communicates with the second channel 14, allowing the guide wire to pass through the first channel 22 of the handle 2, through the second channel 14, and out through the outlet hole 1114 to the outside. With the above configuration, as... Figure 3 and Figure 8 As shown, the inlet hole 21 is connected to the outlet hole 1114 through the first channel 22 inside the handle 2 and the second channel 14 inside the needle tube 1 in sequence, so that the guide wire can be inserted from the inlet hole 21, and then pass through the first channel 22 and the second channel 14 in sequence, and finally exit from the outlet hole 1114, thereby allowing the guide wire to exit from the front end of the needle tube 1.

[0039] Continue to refer to Figures 1 to 4 The needle tube 1 includes a needle shaft 12, a transition section 13, and a hook section 11. The first end of the needle shaft 12 is connected to the handle 2, and the second end of the needle shaft 12 is connected to the hook section 11 via the transition section 13. The axis of the needle shaft 12 is coaxial with the axis of the handle 2, and the axis of the needle shaft 12 is angled with the axis of the hook section 11. The angle can be from 30° to 90°, preferably 45°, 60°, or 90°. The internal channels of the needle shaft 12, the transition section 13, and the hook section 11 together constitute the second channel 14 of the needle tube 1.

[0040] like Figures 2 to 4As shown, the hook portion 11 includes a puncture portion 111 and a connecting portion 112. The puncture portion 111 can be conical or pyramidal in shape; in this embodiment, the puncture portion 111 is conical. The first end of the puncture portion 111 forms the tip structure 1111 of the front end of the needle tube 1, and the first end of the puncture portion 111 has an outlet hole 1114 for the front end of the needle tube 1. The second end of the puncture portion 111 is connected to the second end of the needle bar portion 12 through the connecting portion 112 and the transition portion 13. The second end of the puncture portion 111 is provided with a fixing portion 1112, which is configured to fix the puncture portion 111 onto human tissue. Specifically, the puncture portion 111 and the fixing portion 1112 are integrally formed.

[0041] It should be noted that when the puncture part 111 is fixed to the human tissue by the fixation part 1112, after the knotting operation is completed during the operation, the fixation part 1112 can be slightly removed from the human tissue so that the puncture part 111 can be removed from the human tissue.

[0042] Furthermore, such as Figure 5 As shown, in this embodiment, specifically the first implementation, the fixing part 1112 is a pointed edge structure continuously arranged circumferentially along the second end of the puncture part 111, and the tip of the pointed edge structure extends in the direction of the connecting part 112 along the axial direction of the puncture part 111. With the above arrangement, the tip of the pointed edge structure can be inserted into the human tissue in the direction of the connecting part 112 along the axial direction of the puncture part 111, thereby fixing the puncture part 111 to the human tissue.

[0043] In the second implementation, such as Figure 6 As shown, the fixing part 1112 is a pointed edge structure circumferentially spaced along the second end of the puncture part 111, and the tip of the pointed edge structure extends in the direction of the connecting part 112 along the axial direction of the puncture part 111. With the above arrangement, the tip of the pointed edge structure can be inserted into the human tissue in the direction of the connecting part 112 along the axial direction of the puncture part 111, thereby fixing the puncture part 111 to the human tissue.

[0044] In the third implementation, such as Figure 7 As shown, the fixing part 1112 is a pointed edge structure that is circumferentially spaced along the second end of the puncture part 111, and the tip of the pointed edge structure extends circumferentially along the puncture part 111. With the above arrangement, after the pointed edge structure is attached to the human tissue, the puncture part 111 is fixed to the human tissue by rotating the puncture part 111 circumferentially so that the tip of the pointed edge structure pierces into the human tissue.

[0045] It should be noted that, compared to the second and third implementation methods, the design of the pointed edge structure in this embodiment is simpler and easier to manufacture, which can effectively reduce manufacturing costs.

[0046] The multifunctional suture hook provided by this utility model has a fixing part 1112 for fixing the puncture part 111 to human tissue, thereby preventing the puncture part 111 from shifting during the operation and thus preventing the guide suture from shifting before knotting. This reduces the difficulty of suturing during arthroscopic surgery, especially reducing the complexity and difficulty of pushing the suture, arranging the suture, and knotting the suture during arthroscopic suturing, which helps to shorten the operation time.

[0047] Furthermore, such as Figures 2 to 5 As shown, the side of the puncture portion 111 is provided with a groove structure 1113 adapted to the suture, which can be an anchor suture. This design allows a portion of the suture to be fixed within the groove structure 1113, thus preventing large-scale suture displacement, reducing the difficulty of the surgery, especially reducing the difficulty of grasping the suture, and helping to shorten the operation time.

[0048] Furthermore, such as Figure 1 As shown, a knob 23 is provided on the circumferential side of the handle 2. The knob 23 is connected to the first end of the needle bar 12 through the transmission mechanism inside the handle 2, so that the knob 23 can drive the hook 11 to rotate around the axis of the needle bar 12 through the transmission mechanism and the needle bar 12.

[0049] Specifically, such as Figure 8As shown, a first drive shaft 231 is provided on the knob 23, which is axially arranged along the handle 2. The rear end of the first drive shaft 231 is rotatably disposed inside the handle 2, and the front end is provided with a first gear part 2311. The knob 23, the first drive shaft 231, and the first gear part 2311 are coaxially arranged, and the knob 23 drives the first gear part 2311 to rotate through the first drive shaft 231. The transmission mechanism is a second drive shaft 24. The rear end of the second drive shaft 24 is provided with a second gear part 241 that meshes with the first gear part 2311, and the front end is provided with a third gear part 242. The second drive shaft 24, the second gear part 241, and the third gear part 242 are coaxially arranged, and the second gear part 241 drives the third gear part 242 to rotate through the second drive shaft 24. At the rear end of the needle bar 12, i.e., at the first end of the needle bar 12, a fourth gear 121 is provided, which meshes with the third gear 242. The fourth gear 121 is coaxially arranged with the needle bar 12, and the fourth gear 121 drives the hook 11 to rotate around the axis of the needle bar 12 via the needle bar 12. When the knob 23 rotates around its axis, the knob 23 drives the first gear 2311 to rotate via the first transmission shaft 231, so that the first gear 2311 drives the second gear 241 to rotate; the second gear 241 drives the third gear 242 to rotate via the second transmission shaft 24, so that the third gear 242 drives the fourth gear 121 to rotate; the fourth gear 121 drives the hook 11 to rotate around the axis of the needle bar 12 via the needle bar 12.

[0050] With the above settings, when the user holds the handle 2 with one hand, the fingers of the holding hand can rotate the knob 23 to make the needle bar 12 drive the hook 11 to rotate around the axis of the needle bar 12, which facilitates the user to perform surgical operations.

[0051] like Figures 9 to 14 As shown in the figure, as an example, the specific operation process of using the multifunctional suture hook of this utility model in arthroscopic joint suturing surgery is as follows:

[0052] In the initial state, the anchor 600 is fixed in the tissue cavity 400 through the opening 310. The anchor is provided with a first anchor suture 610, a second anchor suture 620, a third anchor suture 630 and a fourth anchor suture 640.

[0053] First step, such as Figure 9 As shown, the puncture portion 111 punctures and penetrates into the human tissue 300 through the tip structure 1111.

[0054] The second step, as Figure 10 As shown, after the puncture portion 111 is inserted into the tissue cavity 400, the position of the hook portion 11 is adjusted; wherein, at the puncture position in the first step, a wound 320 communicating with the tissue cavity 400 is formed.

[0055] The third step, as Figure 11 As shown, the puncture part 111 is fixed to the inside of the human tissue 300 by the fixing part 1112, and the first anchor suture 610 is fixed in the suture groove structure 1113 to complete the suture management operation; then, the guide suture 500 is passed out from the suture hole 1114 and enters the tissue cavity 400 to complete the suture pushing operation.

[0056] Step four, as Figure 12 As shown, the guide wire 500 is knotted and fixed to the first anchor stitch 610 to complete the knotting operation.

[0057] Fifth step, as Figure 13 As shown, the puncture portion 111 is detached from the human tissue 300, and the hook portion 11 is removed from the tissue cavity 400 through the wound 320; then, the first anchor suture 610 is pulled out from the tissue cavity 400 through the wound 320 by the traction guide 500.

[0058] Step 6, as follows Figure 14 As shown, after pulling out the first anchor suture 610, the guide suture 500 continues to pass through the exit hole 1114 until the entire guide suture 500 is detached from the hook 11; then, the second anchor suture 620 is fixed in the groove structure 1113, and the second anchor suture 620 is pulled out of the tissue cavity 400 from the opening 310 through the hook 11 for use in subsequent suturing operations.

[0059] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A multifunctional sewing hook, characterized in that, The multifunctional suture hook includes a handle (2) and a needle tube (1). The needle tube (1) includes a needle bar (12) and a hook (11). The first end of the needle bar (12) is connected to the handle (2), and the second end of the needle bar (12) is connected to the hook (11). The hook (11) includes a puncture part (111) and a connecting part (112). The first end of the puncture part (111) forms a tip structure (1111). The second end of the puncture part (111) is connected to the second end of the needle bar (12) through the connecting part (112). The second end of the puncture part (111) is provided with a fixing part (1112). The fixing part (1112) is configured to fix the puncture part (111) to human tissue.

2. The multifunctional suture hook according to claim 1, characterized in that, The fixing part (1112) is a pointed edge structure that is continuously or intermittently arranged circumferentially along the second end of the puncture part (111).

3. The multifunctional suture hook according to claim 2, characterized in that, The tip of the pointed structure extends along the axial direction of the puncture portion (111) toward the connecting portion (112).

4. The multifunctional suture hook according to claim 2, characterized in that, The pointed structure is circumferentially spaced along the second end of the puncture portion (111), and its tip extends circumferentially along the puncture portion (111).

5. The multifunctional suture hook according to claim 2, characterized in that, The puncture portion (111) and the fixing portion (1112) are integrally formed.

6. The multifunctional suture hook according to claim 1, characterized in that, The puncture portion (111) is cone-shaped or pyramidal.

7. The multifunctional suture hook according to claim 1, characterized in that, The side of the puncture portion (111) is provided with a groove structure (1113) adapted to the suture.

8. The multifunctional suture hook according to claim 1, characterized in that, The handle (2) has an inlet hole (21), and the first end of the puncture part (111) has an outlet hole (1114). The inlet hole (21) is connected to the outlet hole (1114) through the first channel (22) inside the handle (2) and the second channel (14) inside the needle tube (1) in sequence.

9. The multifunctional suture hook according to claim 1, characterized in that, The axis of the needle bar (12) is set at an angle to the axis of the hook (11).

10. The multifunctional suture hook according to claim 9, characterized in that, A knob (23) is provided on the side of the handle (2). The knob (23) is connected to the first end of the needle bar (12) through the transmission mechanism inside the handle (2), so that the knob (23) can drive the hook (11) to rotate around the axis of the needle bar (12) through the transmission mechanism and the needle bar (12).

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