Nice wire fastener

Abstract

This invention provides a nice suture guide, comprising a slender needle bar with a puncture hook at its head and two suture channels connecting its two ends within the needle bar. When pre-positioning the suture, the ligation suture is threaded back and forth through the two suture channels to obtain a double-stranded suture, with the closed loop end of the double-stranded suture located at the end of the puncture hook. During suture passage, the puncture hook of the needle bar pierces and bypasses the bone tissue, then hooks the closed loop end of the double-stranded suture, and finally withdraws the puncture hook, thus completing the suture passage. During this process, the double-stranded suture is effectively confined within the needle bar, avoiding the risk of the double-stranded suture being stuck by bone fragments or other tissues during passage, as well as the risk of detachment during the passage process; it offers better stability and safety, and is also convenient to operate.

Description

Technical Field

[0001] This invention relates to the field of medical devices, specifically to the nice knot connector. Background Technology

[0002] Nice knots are commonly used in orthopedic surgery. The method of tying a nice knot is illustrated in CN214128717U, which discloses a needle for quickly tying nice knots to fix free fracture fragments. Figure 3 As shown. Before tying a nice knot, the thread needs to be passed around, that is, the double strand of thread is wrapped around the bone tissue.

[0003] To avoid manual suture handling of double-stranded sutures, CN215192142U discloses a Nice suture guide needle, comprising a crescent-shaped needle body with a suture connecting block at the tail. The suture connecting block has a suture connecting hole and a suture sliding groove communicating with the connecting hole. First, a suture for ligation is folded in half to form a double strand. The closed loop of the double-stranded suture is then slid into the suture connecting hole along the suture sliding groove. Medical personnel use a needle holder to clamp the needle holder and puncture the bone fragments and soft tissue around the main bone shaft from one side to the other. Finally, the closed loop of the double-stranded suture is slid out of the suture sliding groove, completing the suture handling. The disadvantage of this structure is that the ligation suture is only inserted into the ligation suture connection hole at the closed loop end. The ligation suture is not well restrained. When passing the suture, there is still a risk that it will be stuck by bone fragments or other tissues and detach from the needle body. Furthermore, forcibly passing the suture when it is stuck by bone fragments or other tissues can also cause secondary damage. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a nice junction box connector.

[0005] To achieve the above objectives, the technical solution provided by the present invention is as follows:

[0006] Nice thread threader includes a needle bar, the head of which forms a piercing hook, and two thread-passing channels connecting the head and tail of the needle bar are formed inside the needle bar.

[0007] Furthermore, the head end of the needle bar is provided with a hook notch that connects two threading channels, and the hook notch extends to the end face of the head end.

[0008] Furthermore, the hook notch is formed on the outer side of the piercing hook and extends to the end face of the head end.

[0009] Furthermore, the piercing hook has an arc-shaped structure and a sharpened tip at the end.

[0010] Furthermore, the end face of the puncture hook is an inclined end face that is inclined to the radial plane. The inclined end face forms an obtuse angle with the outer surface of the puncture hook and an acute angle with the inner surface of the puncture hook, thereby forming a pointed structure.

[0011] Furthermore, the tail of the needle bar is equipped with a handle, and the outer end of the handle is provided with a thread-passing hole that connects to the thread-passing channel of the needle bar.

[0012] Furthermore, the handle is provided with a winding post and a wire clamping structure.

[0013] Furthermore, the handle includes a fixing block, a wire clamping block, a spring, and a handle portion; the fixing block is fixedly connected to the handle portion, and the fixing block is provided with a wire clamping groove; the wire clamping block is movably disposed between the fixing block and the handle portion and is provided with a wire clamping protrusion corresponding to the wire clamping groove; the spring is disposed between the wire clamping block and the handle portion to apply an elastic force toward the fixing block to the wire clamping block; the handle portion is provided with the winding post.

[0014] Furthermore, the clamping block is also provided with an outwardly extending support arm.

[0015] Furthermore, the handle is detachably mounted to the tail of the needle bar.

[0016] The technical solution provided by this invention has the following beneficial effects:

[0017] During suture placement, the ligation suture is threaded back and forth through two suture channels to obtain a double-stranded suture. The closed loop end of the double-stranded suture is located at the end of the puncture hook (i.e., the head end of the needle bar). During suture passage, the puncture hook of the needle bar pierces and loops around the bone tissue. Then, the closed loop end of the double-stranded suture is hooked, and the puncture hook is withdrawn, thus passing the suture. During this process, the double-stranded suture is well-restrained within the needle bar, avoiding the risk of the suture being caught by bone fragments or other tissues during passage, as well as the risk of detachment during the process. This provides better stability and safety, and is also more convenient to operate. Attached Figure Description

[0018] Figure 1 The diagram shown is a schematic representation of the needle bar structure in Embodiment 1. Figure 1 ;

[0019] Figure 2 The diagram shown is a schematic representation of the needle bar structure in Embodiment 1. Figure 2 ;

[0020] Figure 3 The diagram shown is a schematic diagram of the structure when the needle bar completes the pre-placed thread in Embodiment 1;

[0021] Figure 4 As shown Figure 3 Enlarged view of region A in the middle;

[0022] Figure 5 The diagram shown is a partial structural schematic of the double-stranded wire when the closed loop end is hooked out in Embodiment 1.

[0023] Figure 6 The diagram shown is a schematic diagram of the nice knot wire guide in Example 2 when the wire is threaded.

[0024] Figure 7 As shown Figure 6 An exploded view of the structure shown;

[0025] Figure 8 The diagram shown is a schematic representation of the needle bar in another embodiment. Detailed Implementation

[0026] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention, primarily used to illustrate the embodiments and to explain the operating principles of the embodiments in conjunction with the relevant descriptions in the specification. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0028] Example 1

[0029] Reference Figure 1 , Figure 2 As shown, the nice knotting thread guide provided in this embodiment includes a needle bar 10, which is a slender structure. The head of the needle bar 10 forms a piercing hook 11, and two threading channels 12 are formed within the needle bar 10, connecting the head and tail ends (head end 101 and tail end 102, respectively). Specifically, the head of the needle bar 10 refers to a segment of a certain length (including the head end 101) facing the head end 101, and the head of the needle bar 10 forms the piercing hook 11, the end of which is the head end 101 of the needle bar; the tail of the needle bar 10 refers to a segment of a certain length (including the tail end 102) facing the tail end 102.

[0030] When pre-setting the cable (i.e., placing the cable on the nice cable guide), such as Figure 3 , Figure 4 As shown, the ligation suture is threaded back and forth through two suture channels to obtain a double-stranded suture 1. In the double-stranded suture 1, the closed end of the two segments is the closed loop end 2, and the unclosed end is the open loop end 3. The two segments of the double-stranded suture 1 are respectively threaded through two suture channels 12, and the closed loop end 2 of the double-stranded suture 1 is located at the head end 101 of the needle bar 10 (i.e., the end of the puncture hook 11).

[0031] During the suture passage procedure, the puncture hook 11 of the needle bar 10 is pierced and bypassed around the bone tissue, allowing the closed loop end 2 of the double-stranded suture 1 to protrude from the other side of the tissue. Then, the closed loop end 2 of the double-stranded suture 1 is hooked, and the puncture hook 11 is withdrawn, causing the double-stranded suture 1 to detach from the needle bar 10, thus completing the suture passage. Figure 5 The diagram shows how to draw a distance from the closed loop end 2 of the double-stranded thread 1. During the process, the double-stranded thread 1 is well secured within the needle bar 10, avoiding the risk of it getting stuck by bone fragments or other tissues during threading, as well as the risk of it coming loose during threading; this provides better stability and safety, and is also more convenient to operate. Simultaneously, the two segments of the double-stranded thread 1 are threaded through two separate threading channels 12, effectively preventing them from tangling and improving the overall effect. After threading, a nice knot can be tied.

[0032] In a further preferred embodiment, the head end 101 of the needle bar 10 is provided with a hook notch 13 connecting the two threading channels 12, and the hook notch 13 extends to the end face 15 of the head end 101. With this configuration, during thread preparation, the closed-loop end 2 of the double-stranded thread 1 can be placed within the hook notch 13, thus not affecting the piercing operation at the end of the piercing hook 11. Simultaneously, after piercing, the closed-loop end 2 of the double-stranded thread 1 can be accurately hooked out by inserting a tool into the hook notch 13, resulting in high operational precision and speed.

[0033] Specifically, the hook notch 13 is formed on the outer side of the piercing hook 1 (e.g., Figure 1 The notch 13 extends from side a (as shown) to the end face 15 of the head end 101. This position is unobstructed, facilitating the operator's hooking operation. Of course, in other embodiments, the location of the hooking notch 13 is not limited to this, or the hooking notch 13 may not be used at all.

[0034] The puncture hook 11 has an arc structure, and its end (i.e., the head end 101 of the needle bar 10) is a sharpened tip structure, which facilitates puncture operation.

[0035] Specifically, the end face of the puncture hook 11 (i.e., the end face 15 of the head end 101) is an inclined end face that is inclined to the radial plane, and the inclined end face is parallel to the outer surface of the puncture hook (e.g., Figure 1 The angle between the obtuse end face (as shown in side a) and the inner surface of the puncture hook 11 (as shown in side a) is obtuse. Figure 1 The b-side shown is acute-angled, thus forming a pointed structure. At the same time, the hook notch 13 is formed on the outer side of the puncture hook 11, which can avoid the pointed tip and ensure the integrity of the tip and the puncture capability.

[0036] Example 2

[0037] The nice wire guide provided in this embodiment has a structure that is largely the same as that in Embodiment 1, except that a handle structure is added to the structure of Embodiment 1; that is, as shown in the example below. Figure 6 and Figure 7 As shown, the tail of the needle bar 10 is equipped with a handle 20. The outer end of the handle 20 is provided with a thread hole 201 that connects to the thread channel 12 of the needle bar 10. Specifically, there is one thread hole 201, which connects to two thread channels 12. The double-stranded thread 1 passes through the thread hole 201 at the outer end of the handle 20.

[0038] Specifically, the handle 20 is provided with a winding post 211 and a wire clamping structure. More specifically, the handle 20 includes a fixing block 22, a wire clamping block 23, a spring 24, and a handle 21; the fixing block 22 is fixedly connected to the handle 21, and the fixing block 22 is provided with a wire clamping groove 221; the wire clamping block 23 is movably disposed between the fixing block 22 and the handle 21 and is provided with a wire clamping protrusion 231 corresponding to the wire clamping groove 221; the spring 24 is disposed between the wire clamping block 23 and the handle 21 to apply a spring force toward the fixing block 22 to the wire clamping block 23, thereby driving the wire clamping protrusion 231 of the wire clamping block 23 to abut against the wire clamping groove 221 of the fixing block 22 to clamp and fix the double strand 1 located in the wire clamping groove 221 (i.e., the wire clamping protrusion 231 and the wire clamping groove 221 form a wire clamping structure); the handle 21 is provided with a winding post 211. With this configuration, the segment of the double-stranded wire 1 near the open loop end 3 can be wound around the winding post 211 and held in the clamping groove 221 of the fixing block 22, thereby fixing the open loop end 3 of the double-stranded wire 1. This makes both ends of the double-stranded wire 1 more secure and less likely to come loose during wire passing operations, resulting in better stability.

[0039] Before the hook-shaped head 11 of the needle bar 10 completes puncture and disengages, the open loop end 3 of the double-stranded thread 1 needs to be untied. The specific operation is as follows: first, move the thread clamping block 23 so that the thread clamping protrusion 231 of the thread clamping block 23 disengages from the thread clamping groove 221, releasing the clamp, and then untie it from the winding post 211. In this way, the hook-shaped head 11 of the needle bar 10 can be normally disengaged from the human tissue.

[0040] Furthermore, the clamping block 23 is also provided with outwardly extending support arms 232 for easy hand operation. During operation, hold the handle 21; hook the index and middle fingers onto the two support arms 232 of the clamping block 23 respectively. When it is necessary to release the clamp, pull the clamping block 23 towards the handle 21 with the index and middle fingers, so that the clamping protrusion 231 of the clamping block 23 disengages from the clamping groove 221.

[0041] This embodiment adds a handle 20, which facilitates hand operation and also serves to secure the open loop end 3 of the double-stranded suture 1, ensuring the double-stranded suture 1 is completely fixed to the nice knot suture device and further guaranteeing stability during suture passage. Of course, in other embodiments, the structure of the handle 20 is not limited to this, or the handle 20 may not be used at all.

[0042] Furthermore, the handle 20 is interference-fitted to the tail of the needle bar 10 to achieve a fixed connection. Of course, in other embodiments, the handle 20 can also be screwed to the tail of the needle bar 10, such as... Figure 8 As shown, the tail of the needle bar 10 is provided with an external thread 16, which can be screwed onto the handle 20.

[0043] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.

Claims

1. A nice wire guide, characterized in that, The device includes a needle shaft, the head of which forms a puncture hook. Two threading channels connecting the head and tail are formed within the needle shaft. A hook notch connecting the two threading channels is provided at the head end of the needle shaft. The hook notch is formed on the outer side of the puncture hook and extends to the end face of the head end. During suture preparation, a ligation suture is threaded back and forth through the two threading channels to obtain a double-stranded suture. The closed-loop end of the double-stranded suture can be placed within the hook notch. The tail of the needle bar is equipped with a handle, and the outer end of the handle is provided with a thread-passing hole that connects to the thread-passing channel of the needle bar; the handle is provided with a winding post and a thread-clamping structure; the handle includes a fixing block, a thread-clamping block, a spring and a handle; the fixing block is fixedly connected to the handle, and the fixing block is provided with a thread-clamping groove; the thread-clamping block is movably disposed between the fixing block and the handle and is provided with a thread-clamping protrusion corresponding to the thread-clamping groove; the spring is disposed between the thread-clamping block and the handle to apply a spring force toward the fixing block to the thread-clamping block; the handle is provided with the winding post.

2. The nice junction cable adapter according to claim 1, characterized in that: The piercing hook has an arc-shaped structure and a sharpened tip at the end.

3. The nice junction box wire feeder according to claim 1 or 2, characterized in that: The end face of the puncture hook is an inclined end face that is inclined to the radial plane. The inclined end face forms an obtuse angle with the outer surface of the puncture hook and an acute angle with the inner surface of the puncture hook, thus forming a pointed structure.

4. The nice junction cable adapter according to claim 1, characterized in that: The clamping block is also provided with an outwardly extending support arm.

5. The nice junction cable adapter according to claim 1, characterized in that: The handle is detachably mounted to the tail of the needle bar.

Images