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Mechanical property parameter detection device of in-vitro cornea

A technology of parameter detection and cornea, which is applied in the direction of measuring devices, optical devices, mechanical devices, etc., can solve the problem that the small measurement area cannot provide the regional difference distribution of the biomechanical properties of the whole cornea, the poor adaptability of the cornea of ​​the clamping equipment, and the collection of data Deal with problems such as complex algorithms to achieve the effect of easy post-processing, simple structure, and reasonable overall structure

Inactive Publication Date: 2015-04-08
WENZHOU POLYTECHNIC
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Problems solved by technology

However, the existing experimental platform for in vitro corneal expansion still has the disadvantage that the measurement area is small and cannot provide regional differences in the distribution of biomechanical properties of the whole cornea.
[0003] The invention patent application with the application number 201310597129.0 discloses a measurement platform for the biomechanical performance parameters of the isolated cornea, which includes an installation platform, a corneal fixation device, a pressure device, and a shooting device. The measurement platform has the following disadvantages: (1) shooting The equipment is located at the front end of the corneal fixation device and requires three-dimensional deformation measurement, which leads to complex data processing algorithms; (2) The shooting angle cannot be adjusted, which further increases the difficulty of detection; (3) The size of the corneal fixation device is fixed and cannot be adjusted according to the shape of the cornea. Poor adaptability of clamping devices to different corneas, increasing uncontrollable corneal deformation

Method used

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  • Mechanical property parameter detection device of in-vitro cornea
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  • Mechanical property parameter detection device of in-vitro cornea

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Embodiment Construction

[0022] Below in conjunction with specific embodiment and accompanying drawing, the present invention will be further described:

[0023] Refer to attached Figure 1 to Figure 5 As shown, the isolated cornea mechanical performance parameter detection device of the present invention includes an installation platform 1, and the installation platform 1 is provided with a cornea fixing mechanism, a deformation amount acquisition mechanism, and a deformation driving mechanism, and is also provided with a device for controlling the deformation driving mechanism and The controller for calculating the mechanical performance parameters of the isolated cornea according to the data collected by the deformation acquisition mechanism. The deformation acquisition mechanism includes a distance sensor and at least two high-speed cameras. An installation frame 2 is vertically arranged on the installation platform 1, and each high-speed camera is distributed on the installation platform. The fra...

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Abstract

The invention provides a mechanical property parameter detection device of an in-vitro cornea. The mechanical property parameter detection device comprises an installation platform and a controller, wherein a cornea fixation mechanism, deformation quantity acquisition mechanisms and a deformation drive mechanism are arranged on the installation platform, each deformation quantity acquisition mechanism comprises a distance sensor and at least two high-speed cameras, an installation frame is vertically arranged on the installation platform, and each high-speed camera is provided with a rotation drive mechanism; the location plate of the distance sensor is further provided with a slide drive mechanism, and an angle adjustment mechanism; the cornea fixation mechanism comprises an accommodating cabin and a clamping mechanism, and the clamping mechanism comprises a lamination panel, a clamping unit and a drive unit. The mechanical property parameter detection device provided by the invention has the following beneficial effects that the number and the positions of the deformation quantity acquisition mechanisms are reasonably arranged, thus facilitating post-processing; the distance of the distance sensor relative to the accommodating cabin is randomly adjustable, and the height of the distance sensor is adjustable, thus guaranteeing alignment with the central position of the accommodating cabin; the angles of the high-speed cameras are adjustable, thus improving the detection accuracy.

Description

technical field [0001] The invention relates to the field of medical auxiliary equipment, in particular to a device for detecting mechanical property parameters of an isolated cornea. Background technique [0002] Keratoconus is a relatively common ophthalmic disease in clinical practice, which can produce highly irregular myopic astigmatism and different degrees of visual impairment. The incidence rate in European and American countries is 0.01%~0.05%, and in Japan is 0.07%~0.08%, but there is still no epidemic in my country. learning information. As an important biological attribute, the biomechanical properties of the cornea can directly affect the shape of the cornea, and then affect the refractive state and optical imaging quality of the cornea. Studies have shown that the occurrence and development of keratoconus are closely related to the changes in the regional biomechanical properties of the cornea. Most of the pathological changes occur in the lower temporal part o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/00G01B11/16
Inventor 刘长江邵志达
Owner WENZHOU POLYTECHNIC
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