TFCC repairing and suturing tool

Abstract

The utility model belongs to the technical field of medical instruments, and particularly discloses a TFCC repair suture tool which comprises a handle, a connecting handle arranged at the tail end of the handle, a traction needle connected with the connecting handle and a needle hook at the tail end of the traction needle. The head end of the traction needle is detachably connected with a positioner, a plurality of positioning holes with the center lines pointing to the needle hook are evenly formed in the positioner, and guide cylinders are detachably connected into the positioning holes. A cavity is further formed in the connecting handle, and a rotation control component for adjusting the included angle between the traction needle and the handle is arranged in the cavity. After the suture line enters the joint, the needle hook hooks the triangular fiber cartilage complex, a kirschner wire is guided in through the guide cylinder on the positioner to conduct ulna perforation, the ulna perforation corresponds to the leading-out end of the suture line, the suture line can be led out quickly, and the operation efficiency is improved; in addition, under the arrangement of the rotating control part, the included angle between the handle and the traction needle can be adjusted to be suitable for the current force application angle, and the hand burden of medical staff is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, and particularly relates to a TFCC repair suture tool. BACKGROUND

[0002] It is known that in the clinic of hospital hand surgery, the incidence of ulnar side pain of wrist joint is high, and it is one of the most common wrist joint diseases in the clinic. The wrist joint is a complex and important joint, and the pathogenic factors are extremely diverse, among which the triangular fibrocartilage complex injury is an important cause of ulnar side pain of wrist.

[0003] The triangular fibrocartilage complex injury has a complex structure, and both the superficial fiber injury and the deep layer fiber stop point injury can cause ulnar side pain of patients and affect the life and work of patients, and most patients need surgical treatment. Among them, the deep layer stop point injury of the triangular fibrocartilage complex is an important cause of instability of the lower ulnar radius joint, and it is paid more and more attention by clinical doctors, and the repair technology of the deep layer fiber stop point is various, including various from inside to outside and from outside to inside, and it is also a clinical operation problem. The triangular fibrocartilage complex structure is deep, and it is difficult to expose, and the from inside to outside technology needs to introduce the suture line into the joint, enter the ulna from the small notch of the ulna, and pass out at the distal end of the ulna to suture and fix.

[0004] However, the following problems exist when the operation suture is performed under the arthroscope at present:

[0005] (1) When the suture line enters the joint, the ulna needs to be perforated to introduce the suture line for fixation, and when the ulna is perforated, the perforation position and the suture line introduction end are difficult to correspond, which causes difficult operation and low efficiency;

[0006] (2) When the suture is performed, the current suture tool is mostly fixed and integrated, and when used, the medical staff needs to adjust the force angle of the wrist to operate, which is inconvenient to operate and increases the hand burden of the medical staff. INVENTION CONTENTS

[0007] In order to solve the above technical problems, the utility model designs a TFCC repair suture tool, the position of the ulna perforation is more accurate, the ulna perforation corresponds to the suture line introduction end, the suture line can be introduced quickly, the operation efficiency is improved, and the tool can be adjusted to be suitable for the current force angle, the medical staff does not need to adjust the force angle of the wrist to operate, and the hand burden of the medical staff is reduced.

[0008] In order to achieve the above technical purposes, the utility model is realized by the following technical scheme: a TFCC repair suture tool, including handle, the connecting handle arranged at the tail end of the handle, the pulling needle connected with the connecting handle and the needle hook at the tail end of the pulling needle.

[0009] The pulling needle end is detachably connected to the positioner, the positioner is uniformly provided with a plurality of positioning holes with central lines pointing to the needle hook, and a guide cylinder is detachably connected in the positioning hole;

[0010] The connecting handle is further provided with a cavity, and a rotating control component for adjusting the angle between the pulling needle and the handle is arranged in the cavity.

[0011] Preferably, the positioner is a semicircular arc, the pulling needle end is threadedly connected to the head end of the positioner, and the guide cylinder is threadedly connected in the positioning hole.

[0012] Preferably, the rotating control component comprises a bidirectional locking ratchet, locking teeth, springs, a control block, a rotating rod and a rotating handle, the lower part of the bidirectional locking ratchet is fixedly connected to the pulling needle end, a pair of locking teeth symmetrically arranged along the center of the bidirectional locking ratchet is arranged on the upper part of the bidirectional locking ratchet, the locking teeth are in contact with the bidirectional locking ratchet at the ends, the springs are arranged on the outer sides of the locking teeth and connected to the side wall of the cavity, the wedge-shaped control block is arranged on the inner sides of the two locking teeth, the rotating rod is arranged through the center of the wedge-shaped control block, one end of the rotating rod is rotatably connected to the bottom wall of the cavity, and the other end of the rotating rod is arranged through the sliding groove arranged on the surface of the connecting handle and connected to the rotating handle.

[0013] The utility model discloses the beneficial effects are:

[0014] When the suture is sewn in the triangular fibrocartilage complex, the needle hook of the pulling needle hooks the triangular fibrocartilage complex, then the guide cylinder on the positioner is guided to the needle hook and the kirschner wire is guided to carry out the ulna perforation, the ulna perforation corresponds with the suture leading end, the suture leading is convenient to carry out quickly, and the operation efficiency is improved, and under the arrangement of the rotating control component, the angle between the handle and the pulling needle can be adjusted, thereby being applicable to the current force angle, the medical staff does not need to operate by adjusting the force angle of the wrist, and the hand burden of the medical staff is reduced. DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following briefly introduces the drawing used in the embodiment description.

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is the whole internal structure schematic diagram of the utility model;

[0018] Figure 3 It is Figure 2 It is the local structure schematic diagram of A in the middle;

[0019] Figure 4 It is Figure 2 It is the local structure schematic diagram of B in the middle;

[0020] Figure 5 is the guide cylinder upper view structure schematic diagram of the utility model;

[0021] Figure 6 is the use state schematic diagram of the utility model;

[0022] Figure 7 is the schematic diagram after the end of suturing in embodiment 1;

[0023] In the drawings, the structure name represented by each mark is:

[0024] 1-handle, 2-connection handle, 201-cavity, 202-slideway, 3-pulling needle, 4-needle hook, 5-positioner, 6-positioning hole, 7-guide cylinder, 701-guide slot, 702-external thread, 8-rotation control component, 801-bidirectional locking ratchet, 802-locking tooth, 803-spring, 804-control block, 805-push rod, 806-push handle, 9-ulna, 10-triangular fibrocartilage complex, 11-suture, 12-kirschner wire. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0026] Embodiment 1

[0027] In order to solve the problem that when suturing under arthroscopic TFCC repair surgery, the ulna perforation and the suture introduction into the joint use different tools and are divided into different steps, so that the position of the ulna perforation is not accurate, and when the suture thread is pulled out of the ulna, the suture thread exit end is difficult to correspond to the position of the ulna perforation, causing difficult operation and low efficiency, referring to Figures 1-2 , and Figure 4 A TFCC repair suturing tool is proposed, which comprises a handle 1, a connection handle 2 arranged at the end of the handle 1, a pulling needle 3 connected with the connection handle 2, and a needle hook 4 at the end of the pulling needle 3.

[0028] The pulling needle 3 is threadedly connected with a semicircular arc-shaped positioner 5 at the head end, six positioning holes 6 with center lines pointing to the needle hook 4 are evenly arranged on the positioner 5, and internal threads are arranged in the positioning holes 6 and connected with external threads 702 of a guide cylinder 7; two adjacent through guide slots 701 are arranged in the guide cylinder 7.

[0029] Referring to Figure 5 and Figure 7As shown, after the suture 11 is sewn into the triangular fibrocartilage complex 10 using a suture needle, the triangular fibrocartilage complex 10 with the suture 11 is hooked by the needle hook 4, the desired ulna perforation position and angle are selected, the adjacent two guide cylinders 7 with a length contacting the outer skin of the ulna 9 are installed in the positioning hole 6 of the positioner 5, the center of the guide cylinder 7 points to the position of the needle hook 4, the Kirschner wire 12 is introduced through the guide groove 701 of the two adjacent guide cylinders 7 to perform adjacent ulna perforation, and then the existing elastic sleeve ring traction device is used to pull out the two ends of the suture 11 from the two adjacent ulna perforations, respectively, and then the two ends of the suture 11 are knotted and fixed, so that the triangular fibrocartilage complex 10 is sutured and fixed on the corresponding ulna 9, thereby completing the suture. In this process, the ulna perforation corresponds to the leading end of the suture 11, which facilitates the subsequent pulling out of the suture 11 and improves the operation efficiency.

[0030] Embodiment 2

[0031] In order to solve the problem that the current suture tool is mostly fixed and integrated, and the medical staff needs to adjust the force angle of the wrist to operate when using the tool, which is inconvenient to operate and increases the hand burden of the medical staff during the current TFCC repair surgery under arthroscopy. Figures 2-3 As shown, a cavity 201 is also formed in the connecting handle 2, and a rotating control component 8 for adjusting the included angle between the traction needle 3 and the handle 1 is arranged in the cavity 201.

[0032] The rotating control component 8 includes a bidirectional locking ratchet 801, locking teeth 802, springs 803, a control block 804, a rotating rod 805, and a rotating handle 806. The lower part of the bidirectional locking ratchet 801 is fixedly connected with the head end of the traction needle 3. A pair of locking teeth 802 symmetrically arranged along the center of the bidirectional locking ratchet 801 is arranged on the upper part of the bidirectional locking ratchet 801. The locking teeth 802 are in contact with the bidirectional locking ratchet 801 at the ends. The outer sides of the locking teeth 802 are respectively provided with springs 803 connected with the side wall of the cavity 201. The inner sides of the two locking teeth 802 are provided with wedge-shaped control blocks 804. The rotating rod 805 is arranged through the center of the wedge-shaped control blocks 804. One end of the rotating rod 805 is rotatably connected with the bottom wall of the cavity 201, and the other end penetrates out of the sliding groove 202 formed on the surface of the connecting handle 2 and is connected with the rotating handle 806.

[0033] When the angle between the rotating handle 1 and the traction needle 3 needs to be adjusted to adapt to the force angle, the rotating rod 805 is rotated through the rotating knob 806, so that the wedge-shaped control block 804 is rotated, and the two locking teeth 802 are pushed to open outward to be disengaged from the engagement locking with the bidirectional locking ratchet 801, and the angle between the rotating handle 1 and the traction needle 3 can be adjusted. After the angle is adjusted to the appropriate angle, the wedge-shaped control block 804 is rotated to reset. Under the connection of the spring 803 of the locking tooth 802, the locking tooth 802 is in contact with the bidirectional locking ratchet 801 again, and the rotating locking is performed, so that the best force angle of the current operation of the medical staff is adapted, the medical staff does not need to adjust the force angle of the wrist to operate, and the hand burden of the medical staff is reduced.

[0034] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific embodiments. Apparently, according to the content of the specification, many modifications and changes can be made.

Claims

1. A TFCC repair suture tool, comprising a handle (1), a connecting handle (2) arranged at the end of the handle (1), a pulling needle (3) connected to the connecting handle (2), and a needle hook (4) at the end of the pulling needle (3), characterized in that: a positioner (5) is detachably connected to the head end of the pulling needle (3), a plurality of positioning holes (6) with their center lines pointing to the needle hook (4) are uniformly arranged on the positioner (5), and a guide cylinder (7) is detachably connected in the positioning hole (6); a cavity (201) is further arranged in the connecting handle (2), and a rotation control component (8) for adjusting the angle between the pulling needle (3) and the handle (1) is arranged in the cavity (201).

2. The TFCC repair suture tool of claim 1, wherein, The positioner (5) is a semicircular arc, the head end of the pulling needle (3) is threadedly connected to the head end of the positioner (5), and the guide cylinder (7) is threadedly connected in the positioning hole (6).

3. The TFCC repair suture tool of claim 1, wherein, The rotation control component (8) comprises a bidirectional locking ratchet (801), locking teeth (802), springs (803), a control block (804), a rotating rod (805), and a rotating handle (806), the lower part of the bidirectional locking ratchet (801) is fixedly connected to the head end of the pulling needle (3), a pair of locking teeth (802) symmetrically arranged along the center of the bidirectional locking ratchet (801) is arranged on the upper part of the bidirectional locking ratchet (801), the locking teeth (802) are in contact with the bidirectional locking ratchet (801) at their ends, the springs (803) are arranged on the outer sides of the locking teeth (802) and connected to the side wall of the cavity (201), the wedge-shaped control block (804) is arranged on the inner sides of the two locking teeth (802), the rotating rod (805) is arranged through the center of the wedge-shaped control block (804), one end of the rotating rod (805) is rotatably connected to the bottom wall of the cavity (201), the other end of the rotating rod (805) penetrates out of the sliding groove (202) arranged on the surface of the connecting handle (2) and is connected to the rotating handle (806).

Images