Single-condyle femoral prosthesis grinding tool
By designing a single-condylar femoral prosthesis grinding tool, the problem of poor fixation stability during the grinding and polishing of femoral condylar prosthesis is solved, and the processing efficiency is improved.
Patent Information
- Application Number
- CN202421959543.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-08-14
AI Technical Summary
In the prior art, the grinding and polishing process of femoral condyle prosthesis takes a long time, poor fixation stability, resulting in low processing efficiency.
A single-condylar femoral prosthesis grinding tool is designed, including a tool body, equipped with a mounting position and a mounting hole, and a first and second mounting grooves are provided on the mounting position to fix the single-condylar femoral prosthesis. The tool body is installed on the grinding device, and the prosthesis is driven to grind through the mounting rod to increase the fixing stability.
By increasing the fixing stability of the unicondylar femoral prosthesis, the efficiency of grinding and polishing is improved and the processing time is shortened.
Smart Images
Figure CN223130416U_ABST
Abstract
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 femoral prosthesis. Background Technique
[0002] Unicondylar knee arthroplasty is a form of knee arthroplasty surgery, which preserves the vast majority of structures within 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 femoral prosthesis and a unicondylar femoral prosthesis according to the installation position. The unicondylar femoral prosthesis includes a main board, a first fixing column, and a second fixing column. The main board is an arc-shaped board, and the first fixing column and the second fixing column are sequentially arranged from top to bottom at the upper end of the inner side of 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 the processing of 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 of 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 femoral 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 femoral prosthesis, including a tooling main body. An installation position for installing the unicondylar femoral prosthesis is provided on the tooling main body. The main board of the unicondylar femoral prosthesis is arranged at the installation position. A first installation groove and a second installation groove for installing the first fixing column and the second fixing column of the unicondylar femoral prosthesis are provided at the installation position. An installation hole matching the mounting rod is provided on the tooling main body.
[0005] In a possible implementation manner, a fixing bolt hole is provided on one side of the installation position, and the fixing bolt hole communicates with the second installation groove. A bolt passes through the fixing bolt hole to fix the second fixing column of the unicondylar femoral prosthesis.
[0006] In a possible implementation, the fixed bolt hole and the second installation groove are arranged perpendicular to each other.
[0007] In a possible implementation, an installation boss is provided at the installation position.
[0008] In a possible implementation, the outer side wall of the installation boss is an arc shape that matches the inner side wall of the unicondylar femoral prosthesis main board.
[0009] In a possible implementation, the installation hole is provided on the upper end surface of the tooling main body, and the installation position is provided on the side wall of the tooling main body.
[0010] In a possible implementation, the installation position extends vertically downward from the upper end surface of the tooling main body to the lower end surface of the tooling main body.
[0011] In a possible implementation, the side wall of the tooling main body is an arc surface.
[0012] In a possible implementation, multiple groups of the installation positions are provided.
[0013] In a possible implementation, multiple groups of the installation positions are evenly distributed in the circumferential direction of the installation hole.
[0014] The beneficial effect of the unicondylar femoral prosthesis grinding tooling provided by the present utility model lies in:
[0015] Compared with the prior art, a tooling main body is provided. An installation hole is provided on the tooling main body. The installation hole matches with an installation rod and is used for installation on a grinding device. An installation position is provided on the tooling main body. The unicondylar femoral prosthesis is installed on the installation position. A first installation groove and a second installation groove are provided on the surface of the installation position. The first installation groove and the second installation groove match with the first fixing column and the second fixing column of the unicondylar femoral prosthesis. The first fixing column and the second fixing column of the unicondylar femoral prosthesis are embedded in the first installation groove and the second installation groove on the installation position. The unicondylar femoral prosthesis main board is installed on the installation position, which increases the stability of fixation 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 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 It is a schematic three-dimensional structure diagram of the unicondylar femoral prosthesis grinding tooling provided by the embodiment of the present utility model;
[0018] Figure 2 Explosion structure diagram of the single-condyle femoral prosthesis grinding tooling provided by the embodiment of the present utility model.
[0019] In the figure: 1, main board; 2, first fixing column; 3, second fixing column; 4, tooling main body; 5, mounting boss; 6, first mounting groove; 7, second mounting groove; 8, mounting hole; 9, fixing bolt hole. Specific implementation manner
[0020] 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.
[0021] Please refer to Figure 1 and Figure 2 Now, a specific implementation manner of a single-condyle femoral prosthesis grinding tooling provided by the present utility model will be described. It includes a tooling main body 4. An installation position for installing the single-condyle femoral prosthesis is provided on the tooling main body 4. The main board 1 of the single-condyle femoral prosthesis is arranged at the installation position. First mounting grooves 6 and second mounting grooves 7 for installing the first fixing column 2 and the second fixing column 3 of the single-condyle femoral prosthesis are provided at the installation position. Mounting holes 8 matching the installation rod are provided on the tooling main body 4.
[0022] A single-condyle femoral prosthesis grinding tooling provided by the present utility model, compared with the prior art, is provided with a tooling main body 4. Mounting holes 8 are provided on the tooling main body 4. The mounting holes 8 match the installation rod and are used for installing on the grinding device. An installation position is provided on the tooling main body 4. The single-condyle femoral prosthesis is installed at the installation position. First mounting grooves 6 and second mounting grooves 7 are provided on the surface of the installation position. The first mounting grooves 6 and the second mounting grooves 7 match the first fixing column 2 and the second fixing column 3 of the single-condyle femoral prosthesis. The first fixing column 2 and the second fixing column 3 of the single-condyle femoral prosthesis are embedded in the first mounting grooves 6 and the second mounting grooves 7 at the installation position. The main board 1 of the single-condyle femoral prosthesis is installed at the installation position, which increases the stability of fixation and improves the grinding efficiency.
[0023] Specifically, please refer to Figure 1 and Figure 2, including a tooling main body 4, on which there is a mounting hole 8, and a mounting position is provided on the tooling main body 4. The mounting position is used for mounting a unicondylar femoral prosthesis. On the surface of the mounting position, there are a first mounting groove 6 and a second mounting groove 7. The lower end surface of the main board 1 of the unicondylar femoral prosthesis is mounted on the surface of the mounting position. The first fixing column 2 and the second fixing column 3 of the unicondylar femoral prosthesis are embedded in the first mounting groove 6 and the second mounting groove 7 on the mounting position. The mounting hole 8 is threadedly connected to the lower end of the mounting rod, and the upper end of the mounting rod is mounted on a grinding device. The grinding device drives the mounting rod, the tooling main body 4, and the unicondylar femoral prosthesis to be ground to move in the abrasive grains for grinding and polishing the unicondylar femoral prosthesis. The mounting position, the first mounting groove 6, and the second mounting groove 7 increase the fixing stability of the unicondylar femoral prosthesis and improve the grinding efficiency.
[0024] As a specific implementation manner of a grinding tooling for a unicondylar femoral prosthesis provided by the present utility model, please refer to Figure 1 and Figure 2 , on one side of the mounting position, there is a fixing bolt hole 9, and the fixing bolt hole 9 communicates with the second mounting groove 7. A bolt passes through the fixing bolt hole 9 to fix the second fixing column 3 of the unicondylar femoral prosthesis.
[0025] Specifically, please refer to Figure 1 and Figure 2 , the fixing bolt hole 9 is provided on the tooling main body 4 and is provided on the right / left side of the mounting position. The fixing bolt hole 9 communicates with the second mounting groove 7. A bolt passes through the fixing bolt hole 9 and abuts against the side wall of the second fixing column 3 of the unicondylar femoral prosthesis, increasing the fixing stability of the unicondylar femoral prosthesis on the mounting position.
[0026] As a specific implementation manner of a grinding tooling for a unicondylar femoral prosthesis provided by the present utility model, please refer to Figure 1 and Figure 2 , the fixing bolt hole 9 and the second mounting groove 7 are arranged perpendicular to each other.
[0027] Specifically, please refer to Figure 1 and Figure 2 , the fixing bolt hole 9 is arranged perpendicular to the groove wall of the second mounting groove 7, further increasing the fixing stability of the unicondylar femoral prosthesis on the mounting position.
[0028] As a specific implementation manner of a grinding tooling for a unicondylar femoral prosthesis provided by the present utility model, please refer to Figure 1 and Figure 2 , a mounting boss 5 is provided at the mounting position.
[0029] Specifically, please refer to Figure 1 and Figure 2, the mounting boss 5 is arranged on the mounting position, and the mounting boss 5 is arranged higher than the tooling main body 4, which is convenient for the installation of the unicondylar femoral prosthesis and increases the stability of the unicondylar femoral prosthesis fixed on the mounting position.
[0030] As a specific implementation manner of a unicondylar femoral prosthesis grinding tooling provided by the present utility model, please refer to Figure 1 and Figure 2 , the outer side wall of the mounting boss 5 is an arc shape matching the inner side wall of the main board 1 of the unicondylar femoral prosthesis.
[0031] Specifically, please refer to Figure 1 and Figure 2 , the outer side wall of the mounting boss 5 matches the inner side wall of the main board 1 of the unicondylar femoral prosthesis, and the main board 1 of the unicondylar femoral prosthesis is arranged to fit the surface of the mounting boss 5, which increases the stability of the unicondylar femoral prosthesis fixed on the mounting position and avoids damaging the unicondylar femoral prosthesis.
[0032] As a specific implementation manner of a unicondylar femoral prosthesis grinding tooling provided by the present utility model, please refer to Figure 1 and Figure 2 , the mounting hole 8 is arranged on the upper end surface of the tooling main body 4, and the mounting position is arranged on the side wall of the tooling main body 4.
[0033] Specifically, please refer to Figure 1 and Figure 2 , the mounting hole 8 is arranged at the center of the upper end surface of the tooling main body 4, the mounting position can be arranged on the lower end surface of the tooling main body 4, and the mounting position can also be arranged on the side wall of the tooling main body 4, which is convenient for grinding and polishing the unicondylar femoral prosthesis.
[0034] As a specific implementation manner of a unicondylar femoral prosthesis grinding tooling provided by the present utility model, please refer to Figure 1 and Figure 2 , the mounting position extends vertically downward from the upper end surface of the tooling main body 4 to the lower end surface of the tooling main body 4.
[0035] Specifically, please refer to Figure 1 and Figure 2 , the mounting position is vertically arranged on the side wall of the tooling main body 4, the mounting position is arc-shaped, and the mounting position extends from the upper end surface of the tooling main body 4 to the lower end surface of the tooling main body 4, which is convenient for the installation and grinding and polishing of the unicondylar femoral prosthesis.
[0036] As a specific implementation manner of a unicondylar femoral prosthesis grinding tooling provided by the present utility model, please refer to Figure 1 and Figure 2 , the side wall of the tooling main body 4 is an arc surface.
[0037] Specifically, please refer to Figure 1 and Figure 2, the side wall of the tooling main body 4 is an arc surface, which is convenient for installing bolts and reduces the influence of abrasive flow on the tooling main body 4.
[0038] As a specific implementation manner of a single-condyle femoral prosthesis grinding tooling provided by the present utility model, please refer to Figure 1 and Figure 2 , there are multiple groups of installation positions.
[0039] Specifically, please refer to Figure 1 and Figure 2 , there are multiple groups of installation positions. One group of tooling main bodies 4 can simultaneously polish multiple single-condyle femoral prostheses, improving the polishing efficiency.
[0040] As a specific implementation manner of a single-condyle femoral prosthesis grinding tooling provided by the present utility model, please refer to Figure 1 and Figure 2 , multiple groups of installation positions are evenly distributed in the circumferential direction of the installation hole 8.
[0041] Specifically, please refer to Figure 1 and Figure 2 , multiple groups of installation positions surround the circumferential direction of the installation hole 8. There can be three groups of installation positions. The three groups of installation positions are evenly arranged in the circumferential direction of the installation hole 8. During the polishing process of the single-condyle femoral prostheses on the three groups of installation positions, in the abrasive flow, the force conditions are the same. One group of tooling main bodies 4 can simultaneously polish multiple single-condyle femoral prostheses, improving the polishing efficiency.
[0042] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A single-condyle femoral prosthesis grinding tooling, characterized in that, It includes a tooling main body, on which there is an installation position for installing a unicondylar femoral prosthesis. The main board of the unicondylar femoral prosthesis is arranged at the installation position. On the installation position, there are a first installation groove and a second installation groove for installing the first fixing column and the second fixing column of the unicondylar femoral prosthesis. On the tooling main body, there is an installation hole matching the installation rod.
2. A unicondylar femoral prosthesis grinding tooling according to claim 1, characterized in that, On one side of the installation position, there is a fixing bolt hole, which communicates with the second installation groove. A bolt passes through the fixing bolt hole to fix the second fixing column of the unicondylar femoral prosthesis.
3. A unicondylar femoral prosthesis grinding tooling according to claim 2, characterized in that The fixing bolt hole and the second installation groove are arranged perpendicular to each other.
4. A single condyle femoral prosthesis grinding tooling according to claim 1, characterized in that, An installation boss is arranged at the installation position.
5. The single-condyle femoral prosthesis grinding tooling according to claim 4, wherein, The outer side wall of the installation boss is an arc shape matching the inner side wall of the main board of the unicondylar femoral prosthesis.
6. The single-condyle femoral 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, and the installation position is arranged on the side wall of the tooling main body.
7. A unicondylar femoral prosthesis grinding tooling according to claim 6, characterized in that, The installation position extends vertically downward from the upper end face of the tooling main body to the lower end face of the tooling main body.
8. The single-condyle femoral prosthesis grinding tooling according to claim 1, characterized in that, The side wall of the tooling main body is an arc surface.
9. A unicondylar femoral prosthesis grinding tooling according to claim 1, characterized in that, Multiple groups of the installation positions are arranged.
10. A single-condyle femoral prosthesis grinding tooling according to claim 9, characterized in that, Multiple groups of the installation positions are evenly distributed in the circumferential direction of the installation hole.