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Contact lens for treating dry eye

A technology for contact lenses and dry eye syndrome, which is applied in the field of medical devices and can solve problems such as complicated production process and long production time

Inactive Publication Date: 2019-11-12
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its production time is longer and the production process is more complicated.

Method used

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  • Contact lens for treating dry eye
  • Contact lens for treating dry eye
  • Contact lens for treating dry eye

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Such as Figure 1A , Figure 1B and figure 2 As shown, a contact lens for the treatment of dry eye of the present invention is a contact lens with a curved surface as a whole, and the contact lens includes a soft layer, a hard layer, a hollow microcavity, a microfluidic channel, etc. Structure (hollow microcavities and microfluidic channels are arranged inside the two-layer structure of the soft layer and the hard layer, for example, the hollow microcavities and microfluidic channels can be arranged in the soft layer or the soft layer and the hard layer In between, the microfluidic channels can also be set in the hard layer; the hard layer has a certain strength, such as the Young's modulus of 0.1-10GPa level, and the difference between the soft layer and the hard layer lies in the material used. In terms of softness and hardness, the hard layer is harder than the soft layer. Correspondingly, the soft layer is also softer than the hard layer. The softness and hardness...

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Abstract

The invention discloses a contact lens for treating xerophthalmia. The contact lens is a ball coronary-shaped corneal contact lens (1) which is mainly composed of a soft layer (7) and a hard layer (8), wherein the two parts are made in manners of plane bonding and hot-press molding; a micro-fluid channel (3) and a hollow cavity (4) are formed inside the contact lens; the hollow cavity (4) is filled with a liquid medicine (5); one end of the micro-fluid channel (3) is communicated with the hollow cavity (4); and the other end of the micro-fluid channel (3) is communicated with a liquid outlet (2), and thus the micro-fluid channel (3) is communicated with outside of the corneal contact lens (1). Through reasonable arrangement and improvement of materials of contact lenses and internal structures of lens pieces, the contact lens is used as a medicine delivery system, and compared with a conventional treatment mode of eye drops, the contact lens has the advantages that multiple inconveniences of conventional eye drop treatment modes are overcome, the biological utilization rates of medicines are effectively increased, the retention times of the medicines on corneas are prolonged, and automatic and long-lasting medicine administration treatment on patients suffering from xerophthalmia is achieved.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and more specifically relates to a contact lens for treating dry eye. Background technique [0002] Dry eye syndrome, also known as keratoconjunctival sicca, is a high-occurrence eye disease that causes ocular discomfort, tear film instability, and ocular surface damage due to abnormal tear quality or quantity or dynamics. Common dry eye symptoms include dry and tired eyes, itchy and burning eyes, photophobia, foreign body sensation, and blurred vision. In recent years, with the continuous progress of society and the continuous increase of work intensity, people use mobile phones, computers and other electronic devices more and more frequently, resulting in an increase in the incidence of dry eye disease year by year, and dry eye disease has become a major problem in ophthalmology today. One of the hotspots of research. [0003] Traditional dry eye treatment involves applying eye drops,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F9/00
CPCA61F9/0017
Inventor 陈良洲陈有林金磊安宏彬
Owner HUAZHONG UNIV OF SCI & TECH
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