Bone deficiency repair device capable of adjusting size of prosthesis

Abstract

According to the bone loss repairing device capable of adjusting the size of the repairing body, when the repairing device is installed, the framework body is adjusted through the bending mechanism and the adjusting mechanism which are installed on the framework body; an extension piece installed on the semicircular frame can move a positioning strip in an adjusting groove formed in the frame body by drawing and pulling a moving point, the size of the outer semicircular frame is adjusted, the size of the semicircular frame is finely adjusted, meanwhile, a bending mechanism arranged in the center of the frame body can conduct bending adjustment to a certain degree when the whole repairing device is installed, and the whole repairing device is convenient to use. The connecting pieces mounted in the frame body can be used for adjusting bending deformation while keeping connectivity, so that the mounting adaptability is improved, the mounting deviation is reduced, and the bone loss repair efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a bone loss repair device with adjustable repair body size. Background Art

[0002] The repair and functional reconstruction of large bone loss caused by congenital bone disease, trauma, infection or tumor bone resection has always been a difficult problem and research hotspot in the field of orthopedics. Although traditional autologous bone transplantation has a good osteogenesis effect, it has a limited bone resource and is difficult to repair a large area of ​​bone loss. In addition, the operation is complicated. Allogeneic bone transplantation, artificial substitute replacement, and bone lengthening and transfer have all been used clinically, but they all have certain limitations. In the existing technology, bone loss repair devices are usually used for bone loss repair. However, during the installation process of the bone loss repair device, due to the patient's own reasons or the previous measurement of the patient's site, the bone repair device produced after installation causes partial deviations during installation, affecting the installation efficiency and making it difficult for the patient to undergo bone repair treatment.

[0003] Therefore, in view of the shortcomings of the prior art, it is necessary to provide a bone loss repair device with an adjustable prosthesis size to solve the shortcomings of the prior art. Utility Model Content

[0004] The purpose of the utility model is to avoid the shortcomings of the prior art and provide a bone loss repair device with an adjustable prosthesis size. When installing the repair device, the frame body is adjusted by a bending mechanism and an adjusting mechanism installed on the frame body. The extension piece installed on the semicircular frame can move the positioning bar in the adjustment groove provided in the frame body by pulling the moving point, so as to adjust the size of the external semicircular frame and fine-tune the size of the semicircular frame. At the same time, the bending mechanism arranged in the center of the frame body can perform a certain degree of bending adjustment when the overall repair device is installed. The connecting piece installed inside the frame body can perform bending deformation adjustment while maintaining connectivity, thereby increasing the adaptability of the installation, reducing the installation deviation, and increasing the efficiency of bone loss repair.

[0005] The above-mentioned purpose of the utility model is achieved through the following technical means.

[0006] Provided is a bone loss repair device with adjustable repair body size, comprising a frame body, a bending mechanism installed in the center of the frame body, semicircular frames are respectively arranged on both sides of the frame body, an adjustment groove is arranged inside the frame body, an adjustment mechanism is installed at the connection end between the semicircular frame and the frame body, fixing bolts are evenly installed on the semicircular frame, and a repair grid is fixed on the fixing bolts;

[0007] The adjustment mechanism comprises an extension piece, a moving point is installed on the extension piece, a positioning bar is installed on the top of the extension piece, a triangular convex block is arranged on the positioning bar, and the triangular convex block is installed symmetrically with the central axis of the positioning bar.

[0008] Specifically, the adjustment groove comprises a groove body, a cavity is formed at the top end of the groove body, triangular positioning grooves are formed at both sides of the groove body, and the triangular positioning grooves and the triangular protrusions are installed in cooperation with each other.

[0009] Specifically, the frame body is a split structure, a disconnect interface is provided in the center of the frame body, and the disconnect interface is installed in coordination with the bending mechanism.

[0010] Specifically, the bending mechanism includes two groups of bending blocks, which are installed outside the center of the frame body. The bending blocks are arc-shaped, and connecting pieces are embedded in the frame body inside the bending blocks.

[0011] Specifically, the connecting piece includes a flexible rod, which is installed at the break interface, and flexible protrusions are respectively arranged at both ends of the flexible rod.

[0012] When installing the repair device, the utility model adjusts the frame body through the bending mechanism and the adjusting mechanism installed on the frame body. The extension piece installed on the semicircular frame can move the positioning bar in the adjusting groove opened in the frame body by pulling the moving point, so as to adjust the size of the external semicircular frame and fine-tune the size of the semicircular frame. At the same time, the bending mechanism arranged in the center of the frame body can perform a certain degree of bending adjustment when the overall repair device is installed. The connecting piece installed inside the frame body can maintain the connectivity while performing the bending deformation adjustment, thereby increasing the adaptability of the installation, reducing the installation deviation, and increasing the efficiency of bone loss repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention is further described with reference to the accompanying drawings, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0014] Figure 1 It is a front view of a bone loss repair device with adjustable repair body size according to the utility model.

[0015] Figure 2 It is a partial enlarged view of an adjusting mechanism in a bone loss repair device with adjustable repair body size according to the utility model.

[0016] Figure 3 It is a partial enlarged view of a bending mechanism in a bone loss repair device with adjustable repair body size according to the utility model.

[0017] from Figures 1 to 3 Including:

[0018] 1. Framework body;

[0019] 2. Bending mechanism;

[0020] 3. Adjustment mechanism;

[0021] 4. Semicircular frame;

[0022] 5. Adjustment slot;

[0023] 6. Fixing bolts;

[0024] 7. Repair the grid;

[0025] 8. Extension piece;

[0026] 9. Move point;

[0027] 10. Positioning strip;

[0028] 11. Triangular convex block;

[0029] 12. Tank body;

[0030] 13. Cavity;

[0031] 14. Triangular positioning groove;

[0032] 15. Disconnect interface;

[0033] 16. Bending block;

[0034] 17. Connectors;

[0035] 18. Flexible rod;

[0036] 19. Flexible bump. DETAILED DESCRIPTION

[0037] The utility model is further described in conjunction with the following embodiments.

[0038] Example 1.

[0039] like Figure 1-3 As shown, a bone loss repair device with an adjustable repair body size includes a frame body 1, a bending mechanism 2 is installed in the center of the frame body 1, semicircular frames 4 are respectively arranged on both sides of the frame body 1, an adjustment groove 5 is arranged inside the frame body 1, an adjustment mechanism 3 is installed at the connecting end between the semicircular frame 4 and the frame body 1, fixing bolts 6 are evenly installed on the semicircular frame 4, and a repair grid 7 is fixed on the fixing bolts 6.

[0040] The frame body 1 can be installed when treating the bone loss. During the installation process, the frame body 1 and the semicircular frame 4 installed on the frame body 1 can be manually adjusted. The bending mechanism 2 can bend the frame body 1 to increase the curvature of the frame body 1. At the same time, the adjustment mechanism 3 installed on the semicircular frame 4 and the frame body 1 can telescope the semicircular frame 4. The repair grid 7 set on the semicircular frame 4 can carry the repair body to facilitate bone loss repair. The structures used in this application are all made of degradable materials and can be self-explained in the human body.

[0041] The adjustment mechanism 3 includes an extension piece 8 , on which a moving point 9 is installed. A positioning bar 10 is installed at the top of the extension piece 8 , on which a triangular protrusion 11 is provided. The triangular protrusion 11 is installed symmetrically with respect to the central axis of the positioning bar 10 .

[0042] The extension piece 8 extends deep into the adjustment groove 5 on the frame body 1. The moving point 9 installed on the extension piece 8 can increase the friction force to facilitate the force when adjusting. The extension and contraction of the positioning bar 10 is controlled by the moving point 9, so that the triangular protrusion 11 installed on the positioning bar 10 is laterally displaced, the position of the extension piece 8 is adjusted, and the contraction of the adjustment mechanism 3 on the frame body 1 is controlled.

[0043] The adjustment slot 5 includes a slot body 12, a cavity 13 is provided at the top end of the slot body 12, triangular positioning slots 14 are provided on both sides of the slot body 12, the triangular positioning slots 14 and the triangular protrusions 11 are installed in cooperation with each other, and during the adjustment process, the positioning bar 10 will gradually penetrate into the inside of the slot body 12, and the position of the positioning bar 10 is locked by the triangular positioning slots 14 and the triangular protrusions 11 to control the adjusted size.

[0044] The frame body 1 is a split structure, and a disconnect interface 15 is arranged in the center of the frame body 1 . The disconnect interface 15 cooperates with the bending mechanism 2 to be installed. The setting of the disconnect interface 15 can facilitate the bending mechanism 2 to bend, thereby avoiding damage to the frame body 1 .

[0045] The bending mechanism 2 includes two sets of bending blocks 16, which are installed outside the center of the frame body 1. The bending block 16 is arc-shaped, and a connecting piece 17 is embedded in the frame body 1 inside the bending block 16. The bending block 16 prevents the frame body 1 from deformation and fracture after bending, and increases ductility.

[0046] The connecting member 17 includes a flexible rod 18, which is installed at the disconnect interface 15. Flexible protrusions 19 are respectively provided at both ends of the flexible rod 18. The flexible rod 18 in the connecting member 17 can connect the split frame body 1. After adjustment, the bending mechanism 2 can be connected through the flexible protrusions 19 on the flexible rod 18 to prevent the frame body 1 from separating at the disconnect interface 15.

[0047] During the production process, when installing the repair device, the frame body 1 is adjusted through the bending mechanism 2 and the adjustment mechanism 3 installed on the frame body 1. The extension piece 8 installed on the semicircular frame 4 can move the positioning bar 10 in the adjustment groove 5 opened in the frame body 1 by pulling the moving point 9, so as to adjust the size of the external semicircular frame 4 and fine-tune the size of the semicircular frame 4. At the same time, the bending mechanism 2 arranged in the center of the frame body 1 can perform a certain degree of bending adjustment when the overall repair device is installed. The connecting piece 17 installed inside the frame body 1 can maintain connectivity while performing bending deformation adjustment, thereby increasing the adaptability of the installation, reducing installation deviation, and increasing the efficiency of bone loss repair.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the protection scope of the utility model. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A bone loss repair device with adjustable repair body size, characterized in that: It comprises a frame body, a bending mechanism is installed in the center of the frame body, semicircular frames are respectively arranged on both sides of the frame body, an adjustment groove is arranged inside the frame body, an adjustment mechanism is installed at the connection end between the semicircular frame and the frame body, fixing bolts are evenly installed on the semicircular frame, and a repair grid is fixed on the fixing bolts; The adjustment mechanism comprises an extension piece, a moving point is installed on the extension piece, a positioning bar is installed on the top of the extension piece, a triangular convex block is arranged on the positioning bar, and the triangular convex block is installed symmetrically with respect to the central axis of the positioning bar.

2. A bone loss repair device with adjustable repair body size according to claim 1, characterized in that: The adjusting groove comprises a groove body, a cavity is formed at the top end of the groove body, triangular positioning grooves are formed at two sides of the groove body, and the triangular positioning grooves and the triangular protrusions are installed in cooperation with each other.

3. The bone loss repair device with adjustable repair body size according to claim 2, characterized in that: The frame body is a split structure, a disconnect interface is provided in the center of the frame body, and the disconnect interface is installed in cooperation with the bending mechanism.

4. The bone loss repair device with adjustable repair body size according to claim 3, characterized in that: The bending mechanism comprises two groups of bending blocks, wherein the bending blocks are installed outside the center of the frame body, the bending blocks are arc-shaped, and a connecting piece is embedded in the frame body inside the bending blocks.

5. The bone loss repair device with adjustable repair body size according to claim 4, characterized in that: The connecting piece comprises a flexible rod, which is installed at the disconnect interface, and flexible protrusions are respectively arranged at both ends of the flexible rod.

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