Non-invasive ocular pressure detection sensor based on micro-fluidic technology

A detection sensor, non-invasive technology, applied in the field of medical equipment, can solve the problem of inconvenient night monitoring of intraocular pressure sensors, and achieve the effect of simple structure, high sensitivity and simple detection

Inactive Publication Date: 2016-09-28
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the purpose of the present invention is to provide a non-invasive intraocular pressure detection sensor based on microfluidic technology, wherein the structure, material and connection between the vario

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  • Non-invasive ocular pressure detection sensor based on micro-fluidic technology
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  • Non-invasive ocular pressure detection sensor based on micro-fluidic technology

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Embodiment 1

[0033] As shown in Figure 1(a), figure 2 As shown, the non-invasive intraocular pressure detection sensor based on microfluidic technology in the present invention, the intraocular pressure detection sensor is a C-L-C structure wireless passive non-invasive intraocular pressure detection sensor based on microfluidic technology, including soft corneal contact mirror, hard layer, soft layer, microfluidic channel (i.e. microchannel), liquid microfluidic, microcavity, spiral inductor, fringe capacitance, inner ring capacitance, among which:

[0034] The contact lens has a spherical crown as a whole, and is used to fit the patient's eyeball shape when worn; the contact lens is composed of a hard layer and a soft layer, and the soft layer directly interacts with the patient's cornea. Fitting; the size of the contact lens is set to be 13mm-18mm in diameter; the thickness of the hard layer is 60-80μm, and the main body is made of parylene-c (ie C-type parylene) material, which is not ...

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Abstract

The invention discloses a non-invasive ocular pressure detection sensor based on a micro-fluidic technology. The detection sensor comprises a corneal contact lens, a spiral inductor, a fringing capacitor and an inner ring capacitor, wherein cavities and a micro-fluidic channel are arranged in the corneal contact lens; the cavities and the micro-fluidic channel communicate and are used for keeping fluid, and the fluid is conveyed into the micro-fluidic channel; the amount of the fluid which is conveyed into the micro-fluidic channel is affected by ocular pressure , and capacitance of the inner ring capacitor varies with the amount of the fluid which is conveyed into the micro-fluidic channel; and a CLC loop is constituted by the fringing capacitor, the spiral inductor and the inner ring capacitor, so that the ocular pressure is detected. With the application of the ocular pressure detection sensor disclosed by the invention, the problem that the ocular pressure sensor is inconvenient for night supervision is effectively solved, and the fluctuation of the ocular pressure can be measured with high precision in a whole course within 24h; and the detection sensor has the advantages of being simple in structure, convenient to manufacture, high in sensitivity and broad in dynamic scope.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and more specifically relates to a non-invasive intraocular pressure detection sensor based on microfluidic technology. The intraocular pressure detection sensor adopts a C-L-C structure and is a wireless passive non-invasive Eye pressure detection sensor. Background technique [0002] Glaucoma is the world's first irreversible blinding eye disease. Medical research shows that glaucoma is a disease characterized by optic nerve damage and visual field defects due to pathological elevated intraocular pressure. The increase in intraocular pressure is an important indicator for the diagnosis and treatment of glaucoma, and studies have shown that the intraocular pressure of glaucoma patients fluctuates greatly within 24 hours, and generally reaches the peak during sleep and early morning. No intraocular pressure measurement will be performed. Therefore, it is of great significance to realiz...

Claims

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Application Information

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IPC IPC(8): A61B3/16
CPCA61B3/16
Inventor 陈良洲安宏彬宋永锋宋畅
Owner HUAZHONG UNIV OF SCI & TECH
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