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Device and method for testing rachiocamposis biological mechanics and motion range

A technology of biomechanics and testing equipment, which is applied in the field of spine analysis, can solve the problems of accuracy impact, the inability to measure the range of motion, and the inability to directly calculate the range of motion of the vertebral body, so as to achieve the effect of improving objective accuracy and efficiency

Pending Publication Date: 2020-08-25
SHANDONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The inventors have found that at present, single-axis or biaxial universal biomechanical machines are mostly used, and spine biomechanical testing machines with multiple degrees of freedom are lacking, which limits the development of spinal mechanical testing; general universal testing machines have disadvantages: one On the one hand, only uniaxial compression and tensile mechanical analysis can be carried out; on the other hand, even biaxial mechanical biological testing machines can only perform axial rotational mechanical tests on the basis of compression and tension; on the other hand, , the testing machine cannot directly calculate the range of motion (ROM) of the vertebral body under the physiological activity state; however, for the six physiological states of the human body in forward flexion, backward extension, left bending, right bending, left axial rotation and right axial rotation However, it is difficult for the above mechanical testing machines to complete the mechanical analysis under the two physiological activities of left and right lateral bending, the range of motion (ROM) cannot be measured, and the accuracy will also be affected

Method used

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  • Device and method for testing rachiocamposis biological mechanics and motion range

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Embodiment 1

[0039] In a typical implementation of the present disclosure, such as Figure 1-Figure 3 As shown, a spinal curvature biomechanics and mobility testing device is proposed.

[0040] It mainly includes a frame, a fixture, an adjustment mechanism and a testing mechanism. The fixtures are a pair and are installed on the frame at intervals in relative orientations. The relative position of the change;

[0041] The two fixtures are respectively matched with the two ends of the spine model. When the adjustment mechanism drives the position of the fixture to change, the action of the spine model also changes. According to the measurement requirements required in the actual test, the position and state of the fixture are adjusted to obtain desired action.

[0042] Described test mechanism comprises image acquisition mechanism and mechanical sensor 11, and image acquisition mechanism acquires the image of spine model in the testing process, and force sensor is attached on the surface ...

Embodiment 2

[0070] In another typical embodiment of the present disclosure, as Figure 1-Figure 3 As shown, there is provided a biomechanical and activity test method for spinal curvature, using the test device described in Example 1.

[0071] The two ends of the spine model are clamped by the clamp, so that the spine model is in a natural state, and the mechanical sensor is attached to the surface of the spine model and the marking line is arranged;

[0072] Adjust the position of the fixture to change the state of the spine model so that it assumes the desired twist and / or bend;

[0073] Collect and record the changing images of the spine model and mechanical sensor data during the test;

[0074] Repeatedly change the state of the spine model, record multiple sets of data, and analyze them.

[0075] Further, after the spine model is clamped by the clamps, the distance between the clamps is changed, and a pre-compression or pre-stretching force is applied along the axial direction of t...

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Abstract

The invention provides a device and method for testing rachiocamposis biological mechanics and motion range, and relates to the field of spinal column analysis. The device comprises one or more adjusting mechanisms and a pair of clamping apparatuses oppositely arranged, wherein each adjusting mechanism is connected with the corresponding clamping apparatus to drive the corresponding clamping apparatus to perform six-degree-of-freedom movement, so that the bending and twisting state of a spinal column model which is jointly grasped by the other clamping apparatus is changed. The six-degree-of-freedom adjusting is performed on the clamping apparatuses through the adjusting mechanisms, so that the bending force and the twisting force are exerted on the spinal column model through the clampingapparatuses; a sensor and an image collecting mechanism are arranged to obtain mechanics data and image information, so that measuring of mechanics and the motion range corresponding to the spinal column model is realized.

Description

technical field [0001] The present disclosure relates to the field of spine analysis, in particular to a device and method for testing spinal curvature biomechanics and activity. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] The cross-integration of computer information technology and medicine is gradually developing in the field of medical science and technology. A large number of researches in the field of medical biomechanics will be related to objects in the field of engineering. The main method is to use mathematical theory and physical theory to combine relevant mechanics in engineering mechanics. Apply this mature mechanical calculation method to the medical field, so as to simulate the relevant motion of medicine and verify its mechanical properties. [0004] The commonly used biomechanical simulation method is the three-dimen...

Claims

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Application Information

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IPC IPC(8): A61B5/11A61B5/22
CPCA61B5/1118A61B5/22
Inventor 赵曰峰赵俊勇司海朋
Owner SHANDONG NORMAL UNIV
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