Titanium plate expander

By designing a titanium plate expander for orthopedic reconstruction, the problem of existing titanium plate failure when it is abnormally active or aging after surgery is solved, and a firmer connection between the titanium plate and the bone is achieved and a simple renovation effect is achieved.

CN222466979UActive Publication Date: 2025-02-14UNITECH (CHONGQING) MEDICAL TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202420654013.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-30
Publication Date
2025-02-14
Estimated Expiration
2034-03-30

AI Technical Summary

Technical Problem

The existing titanium plates with loops are prone to burst cortical bone tunnels or require revision surgery when they are not active after the operation or when the product is aging, and ordinary titanium plates cannot be effectively repaired.

Method used

Design a titanium plate expander, which includes a expander body slightly larger than the titanium plate, with a mounting groove for the titanium plate installation in the middle, and the area and contact range of the titanium plate are increased through the expansion device to enhance the titanium plate Connection with bone.

Benefits of technology

The expansion device increases the area and contact range of the titanium plate, improves the firmness of the connection between the titanium plate and the bone, simplifies operation, and improves the postoperative titanium plate renovation effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222466979U_ABST
    Figure CN222466979U_ABST
Patent Text Reader

Abstract

The utility model relates to a titanium plate expander which comprises an expander body, the length of the expander body is larger than that of a titanium plate, the width of the expander body is larger than that of the titanium plate, and a mounting groove for mounting the titanium plate is formed in the middle of the expander body. According to the titanium plate expander, the original titanium plate is taken out and placed in the mounting groove of the expander body, the area of the original titanium plate is increased through the expander, the contact range of the titanium plate and the cortical bone is increased through the titanium plate expander, the titanium plate and the bone are connected more firmly, and meanwhile the titanium plate expander is simple in structure and easy to operate. The method has the effect of improving the post-operation titanium plate rebuilding effect.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to a titanium plate expander. Background Art

[0002] The titanium plates with loops currently used in the clinical field are mainly made of titanium alloys and are mainly used for the fixation of ligaments and tendons or bones in orthopedic reconstruction surgery.

[0003] The existing solution for fixation of ligaments, tendons or bones in orthopedic reconstruction surgery is: the tendon or ligament used for ligament reconstruction is passed through the coil through the titanium plate with a loop, and then the tendon or ligament is pulled through the tibial and femoral bone tunnels through the traction line on the titanium plate until the titanium plate reaches the cortical bone surface that can be flipped over. At this time, the titanium plate is suspended on the outside of the femur through the flip loop line; the other end of the tendon or ligament is passed through the tibial bone tunnel and fixed to the tibial end with a tendon ligament fixation device (such as tendon ligament fixation screws, U-shaped nails, etc.), through the fixation of both ends of the femoral end and the tibial end, and as the tissue gradually grows in to cover and wrap, sufficient mechanical fixation is provided to restore the stability of the joint.

[0004] If the patient performs abnormal postoperative activities or the product ages, the titanium plate with loops will fail, which may lead to the cortical bone tunnel bursting or the need for revision surgery. At this time, ordinary titanium plates with loops cannot effectively repair such situations. Utility Model Content

[0005] In order to facilitate postoperative titanium plate revision, the present application provides a titanium plate expander.

[0006] The titanium plate expander provided in this application adopts the following technical solution:

[0007] A titanium plate expander comprises an expander body, wherein the expander body is longer than the titanium plate, the expander body is wider than the titanium plate, and an installation groove for installing the titanium plate is provided in the middle of the expander body.

[0008] By adopting the above technical scheme, when fixing ligaments and tendons or bones during orthopedic reconstruction surgery, the original titanium plate is first taken out and placed in the installation groove of the expander body. The area of ​​the original titanium plate is increased by the expander, and the contact range between the titanium plate and the cortical bone is increased by the titanium plate expander, so that the connection between the titanium plate and the bone is more firmly established. At the same time, the titanium plate expander has a simple structure and is easy to operate, which improves the postoperative titanium plate revision effect.

[0009] Preferably, both ends of the expander body are elliptical.

[0010] By adopting the above technical solution, the expander body is slightly larger than the titanium plate. After the titanium plate is placed in the titanium plate expander, in order to ensure that the titanium plate expander has the function of a titanium plate, the two ends of the expander body are set to an elliptical shape.

[0011] Preferably, the thickness of the expander body is greater than the thickness of the titanium plate, the installation groove is opened from one side of the expander body, one side of the titanium plate can abut against the installation groove, and the non-abutting surface of the titanium plate is flush with the grooved surface of the expander body.

[0012] By adopting the above technical solution, the thickness of the expander body is greater than the thickness of the titanium plate. At the same time, after the titanium plate is installed in the titanium plate expander, it is flush with the non-contact surface of the expander body. The installation groove can support the titanium plate, making it convenient for the titanium plate expander to reasonably deepen the titanium plate, thereby realizing postoperative titanium plate repair.

[0013] Preferably, the mounting groove and the titanium plate are clearance-matched.

[0014] By adopting the above technical solution, when deepening the expansion of the titanium plate through the titanium plate expander body, the original titanium plate needs to be placed in the installation groove in the titanium plate expander. The installation groove and the gap between the original titanium plate are matched, which makes it convenient to install the original titanium plate into the titanium plate expander. The installation is convenient and easy to operate.

[0015] Preferably, a suture outlet is provided in the middle of the installation groove for the suture on the titanium plate to pass through, and a suture entry port is also provided on one side of the expander body for the suture to enter.

[0016] By adopting the above technical solution, when in use, the staff first puts the original titanium plate suture into the suture outlet opened on the titanium plate expander body through the suture entry port, the suture passes out through the suture outlet, and then presses the original titanium plate into the installation groove of the expander body. The structure is simple and the operation is convenient, which makes it convenient for the staff to quickly install the original titanium plate on the expander body, thereby improving the efficiency of the operation.

[0017] Preferably, the suture threading openings are evenly opened along the inside of the installation groove, occupying 0.7-0.9 times the area of ​​the installation groove, and the sutures on the titanium plate can all be vertically passed through.

[0018] By adopting the above technical solution, the suture thread outlet is opened to be 0.7-0.9 times the area of ​​the installation groove, and the suture on the titanium plate is vertically inserted into the suture thread outlet without affecting the effect of the titanium plate.

[0019] Preferably, the width of the suture entry port is set to 0.8-1.2 mm.

[0020] By adopting the above technical solution, the width of the suture entry port is set to 0.8-1.2mm, which facilitates the insertion of the suture into the titanium plate expander body through the suture entry port, maintains the strength of the expander body, and does not affect the expansion of the titanium plate by the expander body.

[0021] Preferably, each edge line of the expander body is designed with rounded corners.

[0022] By adopting the above technical solution, each edge line of the expander body is designed to be rounded, which can effectively reduce the occurrence of tendons or sutures being cut and damaged by the titanium plate with loops, thereby improving the safety rate of surgery.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When fixing ligaments and tendons or bones during orthopedic reconstruction, first take out the original titanium plate and place it in the installation slot of the expander body. The expander is used to increase the area of ​​the original titanium plate, and the titanium plate expander is used to increase the contact range between the titanium plate and the cortical bone, so that the connection between the titanium plate and the bone is more secure. At the same time, the titanium plate expander has a simple structure and is easy to operate, which improves the titanium plate revision effect after surgery.

[0025] 2. The expander body is slightly larger than the titanium plate. After the titanium plate is placed in the titanium plate expander, in order to ensure that the titanium plate expander has the function of a titanium plate, the two ends of the expander body are set into an elliptical shape;

[0026] 3. The staff first puts the original titanium plate suture through the suture entry port into the suture outlet opened on the titanium plate expander body, and the suture passes through the suture outlet, and then puts the original titanium plate into the installation slot of the expander body. The structure is simple and easy to operate, which makes it convenient for the staff to quickly install the original titanium plate on the expander body, thereby improving the efficiency of the operation;

[0027] 4. Each edge of the expander body is designed to be rounded, which can effectively reduce the occurrence of tendons or sutures being cut and damaged by the titanium plate with loops, thereby improving the safety rate of surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of a titanium plate expander in the present application.

[0029] Figure 2 yes Figure 1 Exploded view.

[0030] Explanation of the reference numerals: 1. expander body; 11. mounting groove; 12. suture passing port; 13. suture entry port; 2. titanium plate. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-2 This application is described in further detail.

[0032] The present application embodiment discloses a titanium plate expander. Figure 1 The titanium plate expander is elliptical in shape as a whole and includes an expander body 1 . The length, width and thickness of the expander body 1 are all greater than the length, width and thickness of the original titanium plate 2 .

[0033] Reference Figure 1 Specifically, the length of the expander body 1 is set to 1.5-2.5 times the length of the original titanium plate 2, and the width is set to 1.1-1.2 times the width of the original titanium plate 2. Specifically, the titanium plate 2 can be expanded in the length direction, and the thickness of the expander body 1 is set to 1.1-1.2 times the thickness of the original titanium plate 2.

[0034] An installation groove 11 is opened in the middle position of the expander body 1, and the titanium plate 2 is installed in the installation groove 11. The depth of the installation groove 11 is the same as the thickness of the titanium plate 2, and the circumferential size of the installation groove 11 is matched with the gap of the titanium plate 2, which is convenient for the titanium plate expander to reasonably deepen the titanium plate 2, thereby realizing the repair of the titanium plate 2 after surgery.

[0035] When fixing ligaments and tendons or bones during orthopedic reconstruction surgery, first take out the original titanium plate 2 and place it in the installation groove 11 of the expander body 1. The expander is used to increase the area of ​​the original titanium plate 2, and the titanium plate expander is used to increase the contact range of the titanium plate 2 and the cortical bone, so that the connection between the titanium plate 2 and the bone is more firmly established. At the same time, the titanium plate expander has a simple structure and is easy to operate, which improves the postoperative renovation effect of the titanium plate 2.

[0036] Reference Figure 2 The expander body 1 also includes a suture passing port 12 and a suture entry port 13. Specifically, the suture passing port 12 is a through hole opened on the mounting groove 11, which is opened along the circumference of the mounting groove 11 and can be opened to be 0.7-0.9 times the area of ​​the mounting groove 11. The suture on the titanium plate 2 can be vertically inserted into the suture passing port 12 without affecting the effect of the titanium plate 2.

[0037] The suture entry port 13 is opened on one side of the expander body 1, and the opening width is set to 0.8-1.2mm for suture entry. When in use, the staff first puts the suture of the original titanium plate 2 into the suture passing port 12 opened in the titanium plate expander body 1 through the suture entry port 13, and the suture passes out through the suture passing port 12, and then presses the original titanium plate 2 into the installation groove 11 of the expander body 1.

[0038] Reference Figure 1 Each edge line of the expander body 1 is rounded, and the radius is set to 0.5-1mm, which effectively reduces the occurrence of tendons or sutures being cut and damaged by the titanium plate with loop 2, and improves the safety rate of surgery.

[0039] The implementation principle of a titanium plate expander in an embodiment of the present application is: when fixing ligaments and tendons or bones during orthopedic reconstruction surgery, first take out the original titanium plate 2, and place the original titanium plate 2 in the installation groove 11 of the expander body 1. The area of ​​the original titanium plate 2 is increased by the expander, and the contact range of the titanium plate 2 and the cortical bone is increased by the titanium plate expander, so that the connection between the titanium plate 2 and the bone is more firmly connected. At the same time, the titanium plate expander has a simple structure and is easy to operate, which improves the postoperative renovation effect of the titanium plate 2.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A titanium plate expander, characterized in that: The expander body (1) comprises an expander body (1), wherein the length of the expander body (1) is greater than the length of the titanium plate (2), the width of the expander body (1) is greater than the width of the titanium plate (2), and a mounting groove (11) for mounting the titanium plate (2) is provided in the middle of the expander body (1).

2. The titanium plate expander according to claim 1, characterized in that: Both ends of the expander body (1) are elliptical.

3. The titanium plate expander according to claim 1, characterized in that: The thickness of the expander body (1) is greater than the thickness of the titanium plate (2); the mounting groove (11) is opened from one side of the expander body (1); one side of the titanium plate (2) can abut against the mounting groove (11); and the non-abutting surface of the titanium plate (2) is flush with the grooved surface of the expander body (1).

4. The titanium plate expander according to claim 2, characterized in that: The installation groove (11) and the titanium plate (2) are clearance-matched.

5. The titanium plate expander according to claim 4, characterized in that: A suture outlet (12) for the suture on the titanium plate (2) to pass through is provided in the middle of the installation groove (11), and a suture entry port (13) for the suture to enter is also provided on one side of the expander body (1).

6. The titanium plate expander according to claim 5, characterized in that: The suture threading openings (12) are evenly arranged along the inside of the installation groove (11), occupying 0.7-0.9 times the area of ​​the installation groove (11), and the sutures on the titanium plate (2) can all be vertically threaded.

7. The titanium plate expander according to claim 5, characterized in that: The opening width of the suture entry port (13) is set to 0.8-1.2 mm.

8. The titanium plate expander according to any one of claims 1 to 7, characterized in that: Each edge line of the expander body (1) is designed with rounded corners.