Zero-incisura fusion cage system static compression bending test device and method

Abstract

The invention relates to a zero-incisura fusion cage system static compression bending test device and method. The test device comprises a clamp and a test block, the clamp comprises two supports, the first support is provided with a first surface and a second surface, the second support is provided with a third surface and a fourth surface, and the first surface and the third surface are oppositely arranged; the test block comprises a first test block and a second test block and is used for simulating two cones to be connected; the first test block and the second test block are respectively fixed on the first surface and the third surface; a zero-incisura fusion cage system to be tested is installed between the first surface and the third surface and is fixedly connected with the first test block and the second test block. The device can be assembled according to the position relation between the zero-incisura fusion cage system and the spine in a real operation, the working environment of the zero-incisura fusion cage system after actual implantation can be simulated, and the situation that the zero-incisura fusion cage system is pressed after the operation is simulated by applying a load; and the compression bending resistance of the zero-incisura fusion cage system can be measured more accurately.

Description

technical field [0001] This patent belongs to the technical field of medical devices, and in particular relates to a static compression bending test device and method for a zero-notch fusion cage system. Background technique [0002] With the aging population in my country and the younger incidence of spinal diseases, the incidence of spinal diseases at home and abroad is increasing year by year. For patients with neurological symptoms and signs, strict conservative treatment is ineffective, and surgical treatment is often required. Among the many surgical methods, spinal plate decompression + fusion cage implantation + plate internal fixation are commonly used. [0003] At present, the commonly used intervertebral fusion device mainly plays a supporting role, but does not have the role of inducing osteogenesis. Therefore, it is necessary to implant autologous bone or allogeneic bone in the fusion device to achieve the purpose of promoting bone fusion. However, the autolog...

AI Technical Summary

Problems solved by technology

For the zero-notch fusion device system, the test is carried out according to the above-mentioned standards. The performance of the comparison is mainly the axial compression, shearing, torsion, subsidence, hardness, size and visibility of the zero-notch fusion device. The experimental loading method involved is different from the actual force-bearing method, and does not reflect the performance of the zero-notch fusion fusion system after assembly

Therefore, it is not fully applicable to the zero-notch fusion system

At present, there is no test method for comparing the mechanical properties of the zero-notch fusion system, and it is impossible to comprehensively evaluate the performance of different types of zero-notch fusion systems

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