Single-condyle tibial prosthesis grinding tool

Abstract

The utility model provides a single-condyle tibial prosthesis grinding tool, and belongs to the technical field of medical instrument machining. The utility model provides a single-condyle tibia prosthesis grinding tool which comprises a tool body, an installation position used for installing a single-condyle tibia prosthesis is arranged on the tool body, a single-condyle tibia prosthesis main board is arranged on the installation position, and an installation groove used for installing a single-condyle tibia prosthesis bottom board is formed in the installation position. And a mounting hole matched with the mounting rod is formed in the tool main body. According to the grinding tool for the unicompartmental tibia prosthesis, the tool body is installed on the installation rod, the tool body is arranged on the grinding device through the installation rod, the installation position is arranged on the tool body, the bottom plate of the unicompartmental tibia prosthesis is embedded into the installation groove in the installation position, the fixing stability is improved, and the grinding efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical device processing, and particularly relates to a grinding tooling for a unicondylar tibial prosthesis. Background Technique

[0002] Unicondylar knee arthroplasty is a form of knee arthroplasty surgery, which preserves most of the structures inside the knee joint, only replaces the articular surface cartilage, and has the advantages of small trauma, few complications, and rapid postoperative joint function recovery. At the same time, by retaining the cruciate ligament, it does not change the joint stability, retains the patient's proprioception, and the postoperative function of the patient is significantly better than that of total knee replacement. The surface of the femoral condyle prosthesis in unicondylar knee arthroplasty is of an irregular shape, and its surface is composed of a combination of several curved surfaces with different curvatures. After the titanium alloy femoral condyle prosthesis is formed and sintered, it needs to undergo a series of subsequent processes such as grinding and polishing to finally obtain a smooth, uniform, and high-quality surface. The surface quality and surface finish of the femoral condyle prosthesis directly affect the function and service life of the femoral condyle prosthesis. The femoral condyle prosthesis is divided into a unicondylar tibial prosthesis and a unicondylar femoral prosthesis according to the installation position. The unicondylar tibial prosthesis includes a main board, a side board, and a bottom board. The side board is arranged on one side of the upper end surface of the main board, and the bottom board is arranged on the lower end surface of the main board. The side board and the bottom board are both perpendicular to the main board. When performing grinding and polishing processing, abrasive flow can be used for processing. The abrasive flow can form a good profile contact and is suitable for processing curved surfaces and special-shaped surfaces. When processing the femoral condyle prosthesis, the grinding device controls the movement of the femoral condyle prosthesis through the mounting rod to perform grinding and polishing on the femoral condyle prosthesis, but the fixing stability is poor, resulting in a long time-consuming grinding and polishing process and low processing efficiency. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a grinding tooling for a unicondylar tibial prosthesis, aiming to solve the problems of long time-consuming grinding and polishing process and low processing efficiency of the femoral condyle prosthesis.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: to provide a grinding tooling for a unicondylar tibial prosthesis, including a tooling main body, an installation position for installing the unicondylar tibial prosthesis is arranged on the tooling main body, the main board of the unicondylar tibial prosthesis is arranged on the installation position, an installation groove for installing the bottom board of the unicondylar tibial prosthesis is arranged on the installation position, and a mounting hole matching the mounting rod is arranged on the tooling main body.

[0005] In a possible implementation manner, a baffle is arranged on the installation position, and the side board of the unicondylar tibial prosthesis abuts against the baffle.

[0006] In a possible implementation manner, the baffle is arranged on one side of the installation position close to the mounting hole.

[0007] In a possible implementation, fixing bolt holes are provided below the mounting position, and the fixing bolt holes communicate with the mounting groove. Bolts pass through the fixing bolt holes to fix the unicondylar tibial prosthesis baseplate.

[0008] In a possible implementation, fixing bolt holes are provided below the mounting position, and the fixing bolt holes communicate with the mounting groove. Bolts pass through the fixing bolt holes to fix the unicondylar tibial prosthesis baseplate.

[0009] In a possible implementation, there are two sets of the fixing bolt holes.

[0010] In a possible implementation, the fixing bolt holes and the mounting groove are arranged perpendicular to each other.

[0011] In a possible implementation, the plane where the two sets of fixing bolt holes are located is parallel to the mounting position.

[0012] In a possible implementation, the mounting holes are provided on the upper end surface of the tooling main body, the mounting positions are provided on the side wall of the tooling main body, and the mounting positions are inclined gradually downward toward the center of the tooling main body.

[0013] In a possible implementation, there are multiple sets of the mounting positions, which are evenly distributed in the circumferential direction of the mounting holes.

[0014] The beneficial effects of a unicondylar tibial prosthesis grinding tooling provided by the present utility model are as follows:

[0015] Compared with the prior art, a tooling main body is provided. Mounting holes are provided on the tooling main body. The mounting holes match with the mounting rods and are used for mounting on the grinding device. Mounting positions are provided on the tooling main body. The unicondylar tibial prosthesis is mounted on the mounting positions. Mounting grooves are provided on the surfaces of the mounting positions. The mounting grooves match with the unicondylar tibial prosthesis baseplate. The unicondylar tibial prosthesis baseplate is embedded in the mounting grooves on the mounting positions. The unicondylar tibial prosthesis main board is mounted on the mounting positions, which increases the fixing stability and improves the grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 Schematic diagram of the three-dimensional structure of the unicondylar tibial prosthesis grinding tooling provided by the embodiment of the present utility model Figure 1 ;

[0018] Figure 2 Exploded structure schematic of the unicondylar tibial prosthesis grinding tooling provided by the embodiment of the present utility model Figure 1 ;

[0019] Figure 3 Three-dimensional structure schematic of the unicondylar tibial prosthesis grinding tooling provided by the embodiment of the present utility model Figure 2 ;

[0020] Figure 4 Exploded structure schematic of the unicondylar tibial prosthesis grinding tooling provided by the embodiment of the present utility model Figure 2 .

[0021] In the figure: 1, main board; 2, side board; 3, bottom board; 4, tooling main body; 5, mounting hole; 6, mounting position; 7, baffle; 8, mounting groove; 9, fixing bolt hole. Specific implementation manner

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0023] Please refer to Figures 1 to 4 , and now a specific implementation manner of a unicondylar tibial prosthesis grinding tooling provided by the present utility model will be described. It includes a tooling main body 4. An installation position 6 for installing the unicondylar tibial prosthesis is provided on the tooling main body 4. The main board 1 of the unicondylar tibial prosthesis is arranged on the installation position 6. An installation groove 8 for installing the bottom board 3 of the unicondylar tibial prosthesis is provided on the installation position 6. A mounting hole 5 matching the installation rod is provided on the tooling main body 4.

[0024] A unicondylar tibial prosthesis grinding tooling provided by the present utility model, compared with the prior art, is provided with a tooling main body 4. A mounting hole 5 is provided on the tooling main body 4. The mounting hole 5 matches the installation rod and is used for installing on the grinding device. An installation position 6 is provided on the tooling main body 4. The unicondylar tibial prosthesis is installed on the installation position 6. An installation groove 8 is provided on the surface of the installation position 6. The installation groove 8 matches the bottom board 3 of the unicondylar tibial prosthesis. The bottom board 3 of the unicondylar tibial prosthesis is embedded in the installation groove 8 on the installation position 6. The main board 1 of the unicondylar tibial prosthesis is installed on the installation position 6, which increases the fixing stability and improves the grinding efficiency.

[0025] Specifically, please refer to Figures 1 to 4, including a tooling main body 4, on which there are mounting holes 5, and a mounting position 6 is provided on the tooling main body 4. The mounting position 6 is used for mounting a unicondylar tibial prosthesis. An installation groove 8 is provided on the surface of the mounting position 6. The lower end surface of the main board 1 of the unicondylar tibial prosthesis is mounted on the surface of the mounting position 6, and the bottom plate 3 of the unicondylar tibial prosthesis is embedded in the installation groove 8 on the mounting position 6. The mounting hole 5 is threadedly connected to the lower end of the mounting rod, and the upper end of the mounting rod is mounted on the grinding device. The grinding device drives the mounting rod, the tooling main body 4 and the unicondylar tibial prosthesis to be ground to move in the abrasive grains for grinding and polishing the unicondylar tibial prosthesis. The mounting position 6 and the installation groove 8 increase the stability of the fixation of the unicondylar tibial prosthesis and improve the grinding efficiency.

[0026] As a specific implementation manner of a grinding tooling for a unicondylar tibial prosthesis provided by the present utility model, please refer to Figures 1 to 4 , a baffle 7 is provided on the mounting position 6, and the side plate 2 of the unicondylar tibial prosthesis abuts against the baffle 7.

[0027] Specifically, please refer to Figures 1 to 4 , the baffle 7 is provided on one side of the mounting position 6 and abuts against the side of the side plate 2 of the unicondylar tibial prosthesis away from the main board 1 of the unicondylar tibial prosthesis, increasing the stability of the fixation of the unicondylar tibial prosthesis.

[0028] As a specific implementation manner of a grinding tooling for a unicondylar tibial prosthesis provided by the present utility model, please refer to Figures 1 to 4 , the baffle 7 is provided on the side of the mounting position 6 close to the mounting hole 5.

[0029] Specifically, please refer to Figures 1 to 4 , the baffle 7 is perpendicular to the mounting position 6 and is provided on the side of the mounting position 6 close to the mounting hole 5 to prevent the baffle 7 from hindering the movement of the abrasive grains during the processing.

[0030] As a specific implementation manner of a grinding tooling for a unicondylar tibial prosthesis provided by the present utility model, please refer to Figures 1 to 4 , a fixing bolt hole 9 is provided below the mounting position 6, and the fixing bolt hole 9 communicates with the installation groove 8, and a bolt passes through the fixing bolt hole 9 to fix the bottom plate 3 of the unicondylar tibial prosthesis.

[0031] Specifically, please refer to Figures 1 to 4 , the fixing bolt hole 9 is provided on the tooling main body 4 and is provided below the mounting position 6. The fixing bolt hole 9 communicates with the installation groove 8, and a bolt passes through the fixing bolt hole 9 and abuts against the side wall of the bottom plate 3 of the unicondylar tibial prosthesis, increasing the stability of the fixation of the unicondylar tibial prosthesis on the mounting position 6.

[0032] As a specific implementation manner of a grinding tooling for a unicondylar tibial prosthesis provided by the present utility model, please refer to Figures 1 to 4 , the fixing bolt hole 9 is provided on the side of the mounting position 6 away from the mounting hole 5.

[0033] Specifically, please refer to Figures 1 to 4 , the fixing bolt holes 9 are arranged on the side of the installation position 6 away from the baffle 7, which is convenient for installing bolts.

[0034] As a specific embodiment of a single condyle tibial prosthesis grinding tooling provided by the present utility model, please refer to Figures 1 to 4 , there are two groups of fixing bolt holes 9.

[0035] Specifically, please refer to Figures 1 to 4 , there are two groups of fixing bolt holes 9, which further increase the stability of the single condyle tibial prosthesis fixed on the installation position 6.

[0036] As a specific embodiment of a single condyle tibial prosthesis grinding tooling provided by the present utility model, please refer to Figures 1 to 4 , the fixing bolt holes 9 and the installation groove 8 are arranged perpendicular to each other.

[0037] Specifically, please refer to Figures 1 to 4 , the fixing bolt holes 9 are arranged perpendicular to the groove wall of the installation groove 8, which further increases the stability of the single condyle tibial prosthesis fixed on the installation position 6.

[0038] As a specific embodiment of a single condyle tibial prosthesis grinding tooling provided by the present utility model, please refer to Figures 1 to 4 , the plane where the two groups of fixing bolt holes 9 are located is parallel to the installation position 6.

[0039] Specifically, please refer to Figures 1 to 4 , the two groups of fixing bolt holes 9 are arranged side by side in the same plane, the two groups of fixing bolt holes 9 are parallel to each other, and the distances from the two groups of fixing bolt holes 9 to the installation position 6 are the same, which further increases the stability of the single condyle tibial prosthesis fixed on the installation position 6.

[0040] As a specific embodiment of a single condyle tibial prosthesis grinding tooling provided by the present utility model, please refer to Figures 1 to 4 , the installation hole 5 is arranged on the upper end surface of the tooling main body 4, the installation position 6 is arranged on the side wall of the tooling main body 4, and the installation position 6 gradually inclines towards the center of the tooling main body 4 from top to bottom.

[0041] Specifically, please refer to Figures 1 to 4 , the installation hole 5 is arranged at the center of the upper end surface of the tooling main body 4, the installation position 6 can be arranged on the lower end surface of the tooling main body 4, the installation position 6 can also be arranged on the side wall of the tooling main body 4, and the installation position 6 gradually inclines towards the center of the tooling main body 4 as it is away from the installation hole 5, which is convenient for grinding and polishing the single condyle tibial prosthesis.

[0042] As a specific embodiment of a single condyle tibial prosthesis grinding tooling provided by the present utility model, please refer to Figures 1 to 4, there are multiple groups of installation positions 6, which are evenly distributed in the circumferential direction of the installation hole 5.

[0043] Specifically, please refer to Figures 1 to 4 , there are multiple groups of installation positions 6. The multiple groups of installation positions 6 surround the circumferential direction of the installation hole 5. Three groups of installation positions 6 can be provided. The three groups of installation positions 6 are evenly arranged in the circumferential direction of the installation hole 5 and are distributed in a spiral shape. During the grinding and polishing process of the unicondylar tibial prosthesis on the three groups of installation positions 6, in the abrasive flow, the force conditions are the same. One set of tooling main body 4 can simultaneously grind and polish multiple groups of unicondylar tibial prostheses, improving the efficiency of grinding and polishing.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A single condyle tibial prosthesis grinding tooling, characterized in that It includes a tooling main body, on which there is an installation position for installing a unicondylar tibial prosthesis. The main board of the unicondylar tibial prosthesis is arranged at the installation position, and an installation groove for installing the bottom plate of the unicondylar tibial prosthesis is arranged at the installation position. An installation hole matching the installation rod is arranged on the tooling main body.

2. The single-condyle tibial prosthesis grinding tooling according to claim 1, wherein A baffle is arranged at the installation position, and the side plate of the unicondylar tibial prosthesis abuts against the baffle.

3. A unicondylar tibial prosthesis grinding tooling according to claim 2, wherein The baffle is arranged on one side of the installation position close to the installation hole.

4. A unicondylar tibial prosthesis grinding tooling according to claim 1, characterized in that, A fixing bolt hole is arranged below the installation position, and the fixing bolt hole communicates with the installation groove. A bolt passes through the fixing bolt hole to fix the bottom plate of the unicondylar tibial prosthesis.

5. The single-condyle tibial prosthesis grinding tooling according to claim 4, wherein, The fixing bolt hole is arranged on one side of the installation position far from the installation hole.

6. A unicondylar tibial prosthesis grinding tooling according to claim 4, characterized in that, There are two groups of the fixing bolt holes.

7. A unicondylar tibial prosthesis grinding tooling according to claim 6, characterized in that, The fixing bolt hole and the installation groove are arranged perpendicular to each other.

8. A unicondylar tibial prosthesis grinding tooling according to claim 6, characterized in that, The plane where the two groups of fixing bolt holes are located is parallel to the installation position.

9. A single condyle tibial prosthesis grinding tooling according to claim 1, characterized in that The installation hole is arranged on the upper end face of the tooling main body, the installation position is arranged on the side wall of the tooling main body, and the installation position gradually inclines towards the center of the tooling main body from top to bottom.

10. A single condyle tibial prosthesis grinding tooling according to claim 1, characterized in that, There are multiple groups of the installation positions, which are evenly distributed in the circumferential direction of the installation hole.

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