Tendon weaving device

Abstract

The utility model relates to a tendon weaving device. Comprising a support, a base is arranged on the right side of the top of the support, a vertical fixing rod is installed on the base, and a connecting hole is formed in the upper end of the fixing rod; a first tensioning rod and a second tensioning rod which are vertical and adjacent are installed on the left side of the support, and the upper ends of the first tensioning rod and the second tensioning rod are fixedly connected through a connecting base. A first spring is arranged on the upper portion of the first tensioning rod, a locking arm is arranged on the lower portion of the first tensioning rod, a connecting frame which moves up and down along the first tensioning rod is installed at the upper end of the first spring, and the supporting arm enables the lower end of the first spring to be connected with the locking arm. A second spring is arranged on the second tensioning rod, a lifting seat moving up and down along the second tensioning rod is arranged below the second spring, side supporting arms are arranged on the two sides of the lifting seat, a connecting arm is installed on one side supporting arm, and a locking seat used for being matched with the locking arm is further installed on the base. The tendon knitting efficiency is improved and the knitting effect is ensured by improving the operability of tendon knitting, so that the knitted tendon meets the operation use requirement.

Description

Technical Field

[0001] The utility model belongs to the technical field of tendon processing tools, in particular to a tendon braiding device. Background Art

[0002] Tendon injuries are common sports injuries. Tendon tears or ruptures can lead to joint dysfunction, so tendon reconstruction is the surgical procedure required for these injuries. Tendon reconstruction surgery typically involves braiding multiple smaller, filamentous tendon strands to create a larger, thicker tendon that meets surgical requirements.

[0003] To achieve optimal tendon braiding, some tendon filaments must be properly tensioned, and then free tendon filaments are intertwined with the tensioned filaments for braiding. The existing art lacks suitable auxiliary devices to assist tendon braiding, resulting in low tendon braiding efficiency and difficulty achieving satisfactory results. These devices should be developed and designed based on specific needs. Utility Model Content

[0004] The purpose of the utility model is to provide a tendon braiding device, which improves the efficiency of tendon braiding and ensures the braiding effect by improving the operability of tendon braiding, so that the braided tendon meets the requirements of surgical use.

[0005] The technical solution adopted by the utility model is: a tendon weaving device, including a support, a base is provided on the top right side of the support, a vertical fixing rod is installed on the base, and a connecting hole is provided at the upper end of the fixing rod; a vertical and adjacent first tensioning rod and a second tensioning rod are installed on the left side of the support, and the upper ends of the two are fixedly connected by a connecting seat; a first spring is provided on the upper part of the first tensioning rod, and a locking arm is provided on the lower part, and a connecting frame that moves up and down along the first tensioning rod is installed at the upper end of the first spring, and also includes a support arm connecting the lower end of the first spring with the locking arm; a second spring is provided on the second tensioning rod, and a lifting seat that moves up and down along the second tensioning rod is provided below the second spring, and side arms are provided on both sides of the lifting seat, a connecting arm is installed on one of the side arms, and a locking seat for cooperating with the locking arm is also installed on the base.

[0006] Preferably, a guide slot is provided on the inner side of the upper portion of the lifting seat, and the first tensioning rod is located inside the guide slot.

[0007] Preferably, the bottom of the connecting arm is fixedly connected to the middle of the side branch arm on this side by rivets, and a transverse connecting hole is also provided in the middle of the connecting arm, and a fixing bolt is provided in the connecting hole.

[0008] Preferably, a rotating shaft is provided in the middle of the locking seat, and a shaft hole penetrating front to back is provided on the base. The rotating shaft is located in the shaft hole and an anti-drop spring is provided at the end.

[0009] Preferably, a locking slot is provided on the inner side of the locking seat, and the locking arm swings laterally into the locking slot to lock, and swings laterally out of the locking slot to unlock.

[0010] Preferably, it further comprises a base with a threaded hole in the middle, a threaded rod is provided in the middle of the bottom of the support and the threaded rod is screwed into the threaded hole of the base.

[0011] The advantages and positive effects of the utility model are:

[0012] The present invention provides a tendon braiding device with a rational structural design. Compared with existing tendon braiding auxiliary tools, the tendon braiding device of the present invention provides better assistance for tendon braiding operations. By providing a fixing rod with a connection hole at the top, the upper portion of multiple tendon strands can be fixedly connected to the upper end of the fixing rod. By providing a first tensioning rod with a first spring, a connecting frame, a support arm, and a locking arm, the lower end of the shorter tendon strands can be fixedly connected to the connecting frame and tensioned by the cooperation between the locking arm and the locking seat and the elastic force of the first spring. By providing a second tensioning rod with a second spring, a lifting seat, a side arm, and a connecting arm, the lower end of the longer tendon strands can be fixedly connected to the connecting arm and tensioned by the elastic force provided by the second spring. The tensioned tendon strands can be manually wound and braided using free tendon strands. Therefore, the tendon braiding device of the present invention improves tendon braiding efficiency and ensures braiding results by improving the operability of tendon braiding, ensuring that the braided tendon meets surgical requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the middle fixing rod and its attached components;

[0015] Figure 3 yes Figure 1 A schematic structural diagram of the first tensioning rod and its accessory components;

[0016] Figure 4 yes Figure 1 Schematic diagram of the structure of the second tensioning rod and its accessories.

[0017] In the picture:

[0018] 1. Base; 2. Support; 3. Base; 4. Anti-slip spring; 5. Locking seat; 6. Fixing rod; 7. Locking arm; 8. Fixing bolt; 9. Connecting arm; 10. Lifting seat; 11. First tensioning rod; 12. Support arm; 13. Second tensioning rod; 14. First spring; 15. Connecting frame; 16. Second spring; 17. Connecting seat; 18. Connecting hole; 19. Rotating shaft; 20. Locking slot; 21. Guide slot; 22. Side support arm. DETAILED DESCRIPTION

[0019] In order to further understand the content, features and effects of the present invention, the following embodiments are given to illustrate in detail.

[0020] See Figure 1 The tendon braiding device of the present invention includes a support 2, a base 3 is provided on the top right side of the support 2, a vertical fixing rod 6 is installed on the base 3, and a connecting hole 18 is provided at the upper end of the fixing rod 6. Specifically, a socket is provided on the base 3, and the lower end of the fixing rod 6 is inserted into the socket on the base 3. The fixing rod 6 is used to fix the upper end of the tendon thread. Before the braiding operation, the upper ends of multiple tendon threads are aligned and combined, and the upper ends of the combined tendon threads are passed through the connecting hole 18 and fixed by fastening or providing a clip.

[0021] This embodiment also includes a base 1 with a threaded hole in the middle. A threaded rod is provided in the middle of the bottom of the support 2 and screwed into the threaded hole of the base 1. The base 1 provides stable support for the main body of the braiding device and should be heavy enough to prevent the braiding device from tipping over even if the tendon filaments are pulled during the braiding process.

[0022] A first tensioning rod 11 and a second tensioning rod 13 are mounted vertically and adjacently on the left side of the support 2. Their upper ends are fixedly connected by a connecting base 17. The first tensioning rod 11 is located inside the second tensioning rod 13 and the two are parallel to each other. Specifically, two inner and outer sockets are provided on the left side of the support 2. The lower ends of the first tensioning rod 11 and the second tensioning rod 13 are inserted into these sockets, respectively.

[0023] See Figure 3 , we can see that:

[0024] A first spring 14 is provided at the upper part of the first tensioning rod 11 and a locking arm 7 is provided at the lower part. A connecting frame 15 that moves up and down along the first tensioning rod 11 is installed at the upper end of the first spring 14, and also includes a support arm 12 that connects the lower end of the first spring 14 with the locking arm 7.

[0025] Specifically, before braiding, the lower end of the tendon filament is bolted to a connecting frame 15. The connecting frame 15 is fixedly connected to the upper end of the first spring 14, which in turn is fixedly connected to the upper end of the support arm 12. The support arm 12 is a flat metal plate with its upper end bent at a right angle and provided with an axial hole. A corresponding axial hole is also provided on the locking arm 7. The first tensioning rod 11 passes through the axial holes in the locking arm 7 and the support arm 12. Thus, the assembly formed by the locking arm 7 and the support arm 12 can move upward or downward along the first tensioning rod 11. When the connecting frame 15 is connected to the tendon filament, the assembly formed by the locking arm 7 and the support arm 12 is pulled downward, further stretching the first spring 14. Simultaneously, the assembly formed by the locking arm 7 and the support arm 12 can rotate and shift about the centerline of the first tensioning rod 11.

[0026] A locking seat 5 for cooperating with the locking arm 7 is also installed on the base 3. By combining the locking arm 7 with the locking seat 5, the assembly consisting of the locking arm 7 and the support arm 12 is maintained in the current position. Accordingly, the first spring 14 is maintained in the current stretched state and the tendon filament is tensioned.

[0027] like Figure 2 As shown in FIG, a rotating shaft 19 is provided in the middle of the locking base 5. A shaft hole extending from front to back is also provided in the base 3. The rotating shaft 19 is located in the shaft hole and has an anti-slip retaining spring 4 at its end. The anti-slip retaining spring 4 prevents the locking base 5 from being laterally separated from the base 3. The rotating shaft 19 forms a hinged connection between the locking base 5 and the base 3, allowing the locking base 5 to swing to a certain extent about the rotating shaft 19.

[0028] A locking slot 20 is provided on the inner side of the locking seat 5 , and the locking arm 7 swings laterally into the locking slot 20 to lock, and swings laterally out of the locking slot 20 to unlock.

[0029] See Figure 4 , we can see that:

[0030] A second spring 16 is provided on the second tensioning rod 13, and a lifting seat 10 is provided below the second spring 16 and moves up and down along the second tensioning rod 13. The upper end of the second spring 16 abuts against the bottom of the connecting seat 17, and the lower end of the second spring 16 abuts against the top of the lifting seat 10. The second spring 16 is in a compressed state, providing a downward pressing elastic force for the lifting seat 10.

[0031] Side arms 22 are provided on either side of the lifting base 10. A connecting arm 9 is mounted on one of the side arms 22, securing the lower end of the tendon filaments. In this embodiment, the bottom of the connecting arm 9 is fixedly connected to the middle of the corresponding side arm 22 using rivets. A connecting hole is also provided transversely through the middle of the connecting arm 9, which houses a fixing bolt 8. Prior to braiding, the lower end of the tendon filaments is bolted to the fixing bolt 8. The elastic force provided by the second spring 16 keeps the tendon filaments in a taut state.

[0032] In this embodiment, a guide slot 21 is provided on the inner side of the upper portion of the lifting base 10, and the first tensioning rod 11 is located inside the guide slot 21. At this time, the first tensioning rod 11 serves as a guide rod for the lifting base 10. Due to the cooperative relationship between the guide slot 21 on the lifting base 10 and the first tensioning rod 11, the lifting base 10 cannot rotate about the center line of the second tensioning rod 13 and can only move in the axial direction.

[0033] Directions:

[0034] Align the upper ends of the multiple tendon strands and combine them, then pass the combined upper ends through the connection holes at the upper end of the fixing rod 6, and fasten the other ends or use a clip to fix the upper ends of the tendon strands;

[0035] Then, the shorter tendon threads are selected and the lower ends of these shorter threads are bolted to the connecting frame 15. Then, the assembly composed of the locking arm 7 and the supporting arm 12 is moved downward to a low position. Then, the locking arm 7 is toggled laterally so that its end is embedded in the locking groove 20 of the locking seat 5 to achieve locking. Then, the first spring 14 is in a certain stretched state, providing the tendon threads with the elastic force required for tensioning. Then, the longer tendon threads are selected and the lower ends of these longer threads are bolted to the fixing bolts 8 on the connecting arm 9. When bolting, the tendon threads should be pulled to make the lifting seat 10 move up a certain height along the second tensioning rod 13. In this way, the second spring 16 is in a further compressed state, providing the lifting seat 10 with the elastic force required for tensioning the tendon threads.

[0036] The remaining tendon filaments serve as free-state filaments, and the operator manually operates the free-state filaments to wrap and weave between the two groups of tensioned tendon filaments until the required weaving length is reached. The lower end of the weaved tendon is then fixed with a clamp, etc., and the connection between the two groups of tensioned tendon filaments and the device is then released. The connection between the upper end of the tendon and the top of the fixed rod 6 is released and fixed with a clamp, etc., and the excess part of the tendon filament is cut to form a tendon that can finally be used for reconstruction surgery.

Claims

1. A tendon braiding device, characterized by: The invention comprises a support (2), a base (3) is provided on the right side of the top of the support (2), a vertical fixing rod (6) is installed on the base (3), and a connecting hole (18) is provided at the upper end of the fixing rod (6); a vertical and adjacent first tensioning rod (11) and a second tensioning rod (13) are installed on the left side of the support (2), and the upper ends of the two are fixedly connected by a connecting seat (17); a first spring (14) is provided on the upper part of the first tensioning rod (11), and a locking arm (7) is provided on the lower part; a spring (14) is provided on the upper end of the first spring (14) along the first tensioning rod ( 11) A connecting frame (15) that moves up and down, further comprising a support arm (12) that connects the lower end of the first spring (14) to the locking arm (7); a second spring (16) is provided on the second tensioning rod (13); a lifting seat (10) that moves up and down along the second tensioning rod (13) is provided below the second spring (16); side arms (22) are provided on both sides of the lifting seat (10); a connecting arm (9) is installed on one of the side arms (22); and a locking seat (5) for cooperating with the locking arm (7) is also installed on the base (3).

2. The tendon braiding device according to claim 1, characterized in that: A guide slot (21) is provided on the inner side of the upper portion of the lifting seat (10), and the first tensioning rod (11) is located inside the guide slot (21).

3. The tendon braiding device according to claim 2, characterized in that: The bottom of the connecting arm (9) is fixedly connected to the middle of the side arm (22) by rivets. A transverse connecting hole is also provided in the middle of the connecting arm (9), and a fixing bolt (8) is provided in the connecting hole.

4. The tendon braiding device according to claim 3, characterized in that: A rotating shaft (19) is provided in the middle of the locking seat (5), and a shaft hole penetrating from front to back is also provided on the base (3). The rotating shaft (19) is located in the shaft hole and an anti-dropping clamping spring (4) is provided at the end.

5. The tendon braiding device according to claim 4, characterized in that: A locking slot (20) is provided on the inner side of the locking seat (5); the locking arm (7) swings laterally into the locking slot (20) to lock, and swings laterally out of the locking slot (20) to unlock.

6. The tendon braiding device according to any one of claims 1 to 5, characterized in that: It also includes a base (1) with a threaded hole in the middle, a threaded rod is provided in the middle of the bottom of the support (2), and the threaded rod is screwed into the threaded hole of the base (1).

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