Intervertebral fusion cage multidimensional mechanical property evaluation device

By designing a drive mechanism that integrates axial and rotational loading, a multi-dimensional mechanical performance evaluation of the interbody fusion device was achieved, solving the problem that existing devices cannot perform torque testing, and improving the applicability and comprehensiveness of the evaluation.

CN224500147UActive Publication Date: 2026-07-14TIANJIN NATONG MEDICAL SCI & TECH RES INST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN NATONG MEDICAL SCI & TECH RES INST CO LTD
Filing Date
2025-04-29
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing biomechanical performance testing devices for interbody fusion devices cannot perform torsion tests, and cannot comprehensively cover the mechanical performance evaluation of multi-dimensional loads such as compression, shear and torsion.

Method used

A multi-dimensional mechanical performance evaluation device for intervertebral fusion cages is designed, which integrates a first drive mechanism for axial loading and a second drive mechanism for rotational loading, enabling compression, shear, torsion and combined load tests on the fusion cage on the same device.

Benefits of technology

This significantly improves the applicability of the equipment, enabling a comprehensive assessment of the multi-dimensional mechanical properties of the interbody fusion device and ensuring the safety and effectiveness of the implant.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of prosthesis mechanics performance detection, disclose a kind of intervertebral fusion cage multidimensional mechanics performance evaluation device, including operation platform and clamping mechanism, the top of operation platform is fixedly installed with support column, the top of support column is fixedly installed with top plate, clamping mechanism includes detection base and spherical indenter, detection base is fixedly installed on operation platform by bolt, both sides of spherical indenter are hinged with hinged link, the upper end of hinged link is hinged with movable plate, and the insertion hole is opened in movable plate, and the insertion hole is slidably provided with pressure rod, the bottom of pressure rod can be pressed on spherical indenter, first driving mechanism for driving pressure rod to move up and down, second driving mechanism for driving pressure rod to rotate are respectively installed on operation platform, the utility model integrates the first driving mechanism of axial loading and the second driving mechanism of rotary loading, can realize the compression, shear, torsion and composite load test to fusion cage on same equipment, greatly improve the applicability of equipment.
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