Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Intraocular phototropism lens and implantation method

A refractive lens and lens technology, applied in the direction of eye implants, intraocular lenses, ophthalmic surgery, etc., can solve the problem that intraocular contact lenses are only applicable, no intraocular refractive lenses are applicable, and cannot perform any activities, etc. question

Inactive Publication Date: 2004-01-14
杭州爱晶伦科技有限公司
View PDF3 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of the technical solution of the invention are: first, the intraocular contact lens is only applicable to the posterior chamber of the eye, and does not mention any intraocular refractive lens applicable to the anterior chamber
However, for patients with high myopia (or high hyperopia), once they lose their glasses, their life and actions will be greatly restricted, and severe cases may even be unable to perform any activities

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Intraocular phototropism lens and implantation method
  • Intraocular phototropism lens and implantation method
  • Intraocular phototropism lens and implantation method

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0069] Other design features of the intraocular refractive lens in specific embodiment 1 are:

[0070] The optical body 30 is a circular structure, and its diameter D is between 4 mm and 6 mm, preferably 5 mm.

[0071] The total length L of the intraocular refractive lens 11 ranges from 10 mm to 13 mm, preferably 11 mm.

[0072] The width W of the support body 31 ranges from 4.5 mm to 6.5 mm, preferably 6 mm.

[0073] The thickness T of the support body 31 h The range is between 0.15mm and 0.3mm, preferably 0.2mm.

[0074] The radius of curvature R of the middle section of the front surface of the support body 31 h Always greater than the radius of curvature R of the rear surface of the support p , in general R h = R p +T h .

[0075] The central thickness T of the optical body 30 of the intrarefractive lens for myopia c For example, the range may be between 0.01 mm and 0.2 mm, preferably 0.1 mm.

[0076] The radius of curvature R of the front surface of the optical ...

specific Embodiment 2

[0081] Other design features of specific embodiment 2 are the same as specific embodiment 1.

[0082] The intraocular refractive lens of the present invention can correct myopia or hypermetropia in any degree. For myopia lenses, the radius of the concave surface on the front surface of the optical body determines the refractive power of the lens. Generally speaking, the lens can correct myopia from 100 degrees (-1D) to 3000 degrees (-30D). Generally, the radius of the concave surface of the front surface of the optical body can be calculated from the optical theoretical equation according to the known factors such as the refractive index and diopter of the material. In addition, the edge thickness T of the concave optical body e Generally, it should not be larger than 1mm, preferably not larger than 0.7mm. In order not to exceed this limit of edge thickness, it is necessary to reduce the diameter of the optic body to a minimum of 4.5 mm for highly myopic lenses. When makin...

specific Embodiment 4

[0088] Specific embodiment 4 such as Figure 12-14 shown. Its design is similar to that of Embodiment 3, except that its optical body is a convex and concave curved surface structure for correcting hyperopia.

[0089] According to basic principle and purpose of the present invention, the support body of the intraocular refractive lens in the specific embodiment 1-4 all can adopt such as Figure 15-17 The shape structure shown. Small holes can be set on the support body. The small hole may be circular but not limited to circular, and when circular, its diameter ranges from 0.5 mm to 2.5 mm. When it is used for the lens in the posterior chamber of the eye, on the one hand, the function of the small hole is to facilitate the operation of the doctor during the operation, and the lens can be moved to a suitable position by hooking the small hole. On the other hand, pinholes also reduce the contact surface area of ​​the lens with the natural crystal. In addition, since the aque...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An intra-ocular refraction lens is composed of a circular optical body and at least one supporter. The curvature radius for the front surface of said optical body is determined by actual diopter. The back surface of said refraction lens appears as a concave curved surface. A method for reversibly transplanting said refraction lens into eye is also disclosed, which is suitable for the patient of high-level myopia or hyperopia.

Description

technical field [0001] The invention relates to an intraocular lens and an implantation method thereof. More specifically, the present invention relates to a refractive lens that can be implanted in the eye and co-exist with the natural lens of a person to correct the refractive error of the eye and a device for implanting the intraocular refractive lens in the eye method. Background technique [0002] In order to accurately describe the content of the present invention, the following terms are explained or defined first. [0003] Natural lens: refers to the natural lens in the eyes of humans (or broadly mammals). Natural crystals are surrounded by an elastic membrane capsule, sometimes called a capsular bag. On the surface of the natural crystal mentioned in the present invention actually means on the membranous capsule on the front surface of the natural crystal. The natural lens is transparent and can adjust the focusing ability, which enables near (or far) objects to...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/16A61F9/007
Inventor 吕萍
Owner 杭州爱晶伦科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com