一种人工关节髋臼杯静态压力变形测试工装

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By using a combination of equilateral triangular blocks and hydraulic vises, the problems of unqualified and inefficient measurement of acetabular cups in artificial joints in the prior art have been solved, achieving precise and repeatable positioning and efficient measurement of the acetabular cup, and improving the accuracy and efficiency of the measurement results.

CN224505664UActive Publication Date: 2026-07-17SHANDONG XINYUE MASCH CO LTD

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: SHANDONG XINYUE MASCH CO LTD
Filing Date: 2025-05-30
Publication Date: 2026-07-17

AI Technical Summary

Technical Problem

In the existing technology, the static pressure deformation test of artificial joint acetabular cups involves manual rotation and visual alignment, which leads to unqualified measurement results and low efficiency, and makes it impossible to achieve multi-angle testing.

Method used

The test fixture, which includes a vise, support base, pressure sensor and rotating assembly, utilizes the trisection principle of an equilateral triangle to achieve precise rotation and repeatable positioning. It combines a hydraulic vise and pressure sensor for loading, eliminating manual drive and improving measurement efficiency and accuracy.

Benefits of technology

It achieves precise and repeatable positioning and efficient measurement of the acetabular cup, resulting in more accurate measurement results, reduced measurement costs, and improved efficiency of the measurement process.

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Abstract

本实用新型公开了一种人工关节髋臼杯静态压力变形测试工装，包括台钳、支撑座、压力传感器、旋转组件；所述台钳包括固定底座、固定块、移动滑块，所述固定块安装在固定底座的一侧，所述移动滑块设置在固定底座的另一侧；所述支撑座包括第一台阶、卡槽、第二台阶，所述第一台阶上设置有所述卡槽，所述第二台阶上端面设置有压力传感器；所述压力传感器包括压力输送端和压力感应端，所述压力输送端的端面与移动滑块侧面贴合，所述压力感应端的端面与髋臼杯贴合；所述旋转组件包括等边三角块、旋转底座、顶紧螺栓，所述等边三角块，所述髋臼杯设置在所述等边三角块上，与所述固定块抵接，所述旋转底座设置在所述卡槽内，解决了测量不合格的问题。

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Claims

1. A static pressure deformation test fixture for an artificial joint acetabular cup, characterized by, Includes a vise (1), a support base (2), a pressure sensor (3), and a rotating assembly (5); The vise includes a fixed base (11), a fixed block (12), and a movable slider (13). The fixed block (12) is installed on one side of the fixed base (11), and the movable slider (13) is located on the other side of the fixed base (11). The support base (2) includes a first step (21), a slot (22), and a second step (23). The slot (22) is provided on the first step (21), and a pressure sensor (3) is provided on the upper surface of the second step. The pressure sensor (3) includes a pressure transmission end (31) and a pressure sensing end (32). The end face of the pressure transmission end (31) is in contact with the side of the movable slider (13), and the end face of the pressure sensing end (32) is in contact with the acetabular cup (4). The rotating assembly includes an equilateral triangular block (51), a rotating base (52), and a tightening bolt (53). The equilateral triangular block (51) is disposed on the rotating base, and the acetabular cup (4) is disposed on the equilateral triangular block (51) and abuts against the fixing block (12). The rotating base (52) is disposed in the slot (22).

2. The static pressure deformation test fixture for an artificial joint acetabular cup of claim 1, wherein, The length of the second step (23) is less than the length of the pressure conveying end (31).

3. The static pressure deformation test fixture for an artificial joint acetabular cup of claim 1, wherein, The pressure sensing end (32) is located at the upper end of the first step (21).

4. The static pressure deformation test fixture for an artificial hip cup according to claim 1, wherein, A bolt hole is provided at the center of the equilateral triangular block (51).

5. The static pressure deformation test fixture for an artificial hip cup according to claim 1, wherein, The acetabular cup (4) has a bottom hole (41) at its bottom, and the acetabular cup (4) is connected to the equilateral triangular block (51) by a fixing bolt (42).

6. The static pressure deformation test fixture for an artificial joint acetabular cup of claim 1, wherein, The upper surface of the rotating base is fixedly connected to a first stop block (521), a second stop block (522), and a clamping block (523). A placement cavity is formed between the first stop block (521), the second stop block (522), and the clamping block (523). The equilateral triangular block (51) is located in the placement cavity, and the clamping block (523) is parallel to the bottom surface of the equilateral triangular block (51).

7. The static pressure deformation test fixture for an artificial hip cup according to claim 6, wherein The clamping block (523) is provided with bolt holes, and the clamping bolt (53) passes through the bolt holes to fix the equilateral triangular block (51).

8. The static pressure deformation test fixture for an artificial hip cup according to claim 1, wherein, The vise (1) is a hydraulic vise.