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Eyelid pressure detection device

A detection device and pressure technology, which is applied in the fields of eye testing equipment, medical science, diagnosis, etc., can solve the problems of poor accuracy and repeatability of eyelid pressure, and achieve the effect of improving accuracy and repeatability, reducing interference, and accurate measurement

Active Publication Date: 2020-11-24
BEIJING TONGREN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are significant variations in eyelid pressure measured by different measurement methods and devices, resulting in poor accuracy and repeatability of eyelid pressure detection

Method used

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Embodiment Construction

[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings and the following embodiments.

[0030] Some embodiments of the present invention provide an eyelid pressure detection device, the eyelid pressure detection device comprising:

[0031] Corneal contact lens, which is placed on the surface of the eyeball and adhered to the cornea; wherein, the material of the corneal contact lens is silicone hydrogel, selected from methyl methacrylate, hydroxyethyl methacrylate or methyl methacrylate. Hydrated polymers such as glyceryl acrylate; the diameter of the contact lens is preferably 10-15mm, and the thickness is less than 0.2mm;

[0032] The strain sensing sensor is configured in the contact lens, and is used to detect the amount of strain generated when the upper eyelid acts on the contact lens when blinking;

[0033] The signal processing module is configured in the contact lens, connected with the strain sensing senso...

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Abstract

The invention provides an eyelid pressure detection device. The detection device comprises a corneal contact lens, a strain induction sensor and a signal processing module, wherein the corneal contactlens is placed on the surface of an eyeball and attached to a cornea; the strain induction sensor is arranged in the corneal contact lens and used for detecting the strain quantity generated when anupper eyelid acts on the corneal contact lens during blinking; and the signal processing module is arranged in the corneal contact lens, connected with the strain induction sensor and used for converting the strain quantity detected by the strain induction sensor into an electric signal and sending the electric signal to an external device. The detection device can accurately measure the pressureof the eyelid, reduce interference of intraocular pressure on the pressure of the eyelid during detection and improve the accuracy and repeatability of eyelid pressure detection.

Description

technical field [0001] The invention belongs to the technical field of instruments for measuring eyelid pressure, in particular to an eyelid pressure detection device. Background technique [0002] Structural and functional abnormalities of the eyelid can cause ocular surface dysfunction. Eyelid pressure is the tension or pressure exerted by the eyelid on the conjunctiva and cornea. The shear force and sliding of the eyelid on the ocular surface during blinking have effects on tear film stability, tear volume, conjunctival and corneal epithelial cells, and conjunctival goblet cells. Because shear force is difficult to measure quantitatively, eyelid pressure is often measured to assess abnormalities in eyelid function. There is currently no standard eyelid pressure measurement device. There are significant variations in eyelid pressure measured by different measurement methods and devices, resulting in poor accuracy and repeatability of eyelid pressure detection. Content...

Claims

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Application Information

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IPC IPC(8): A61B3/10
CPCA61B3/10
Inventor 王开杰万修华王进达张景尚李猛
Owner BEIJING TONGREN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV
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