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Corneal implant

A technology for implants and corneas, which is applied in the field of corneal implants and can solve problems such as cost

Inactive Publication Date: 2018-12-14
CARL ZEISS MEDITEC AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Of course, this solution is extremely costly due to the need for multiple pockets in the cornea and accurate placement of different implants

Method used

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  • Corneal implant
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Examples

Experimental program
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Embodiment Construction

[0038] figure 1 A schematic diagram of a cross-section of the cornea 1 is shown. The cornea has a pocket 2 produced by means of a femtosecond laser, in which an implant 3 is placed by introducing the implant 3 through an inlet 4 into the pocket 2 . A method for producing a pocket 2 in the cornea 1 by means of a femtosecond laser is described, for example, in DE 10 2006 053 120, the entire content of which is hereby incorporated by reference. The implant 3 can also be obtained from the cornea of ​​a donor eye by means of the same method. In this case, the implant 3 has precisely the shape that causes the locally altered refractive power of the cornea 1 by inserting the implant 3 into the cornea 1 to correct the image of the eye in a desired manner. properties, wherein the implant 3 has a thin (less than 200 μm), generally flexible structure, must be light-transmissive and whose refractive index is adapted to that of the cornea 1, so that the implant can be used with conventio...

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PUM

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Abstract

The invention relates to a corneal implant, in particular for placing in a corneal pocket, and to a device for fitting such an implant in place. To this end, the corneal implant for correcting defective vision, in particular of higher order, has at least one marking which permits a clear orientation of the implant in the cornea and is designed such that the visual impression is not impaired. The device has an observation arrangement and at least one illumination system for illuminating and exciting at least one marking of the corneal implant arranged in an eye.

Description

[0001] This application is a divisional application of an invention patent application with application number 201280032938.0 and an invention name of "corneal implant" with an application date of June 28, 2012 and a date of entering the Chinese national phase on December 31, 2013. technical field [0002] The present invention relates to a corneal implant, in particular a corneal implant for placement in a corneal pocket, and to a device for placing such an implant. Background technique [0003] It is known to treat refractive defects of the eye, ie visual defects, with the aid of lasers, in order to make the use of spectacles superfluous. [0004] On the one hand, corneal material can be evaporated and thereby ablated in a targeted manner by means of an excimer laser, so that the effect of refracted light by the cornea is changed so that visual defects are compensated. [0005] Another method is based on the separation and removal of essentially crystal-like tissue section...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/14A61F9/007
CPCA61F2250/0098A61F2/147A61F2/148A61F9/007A61F2/142
Inventor 格雷戈尔·施托布拉瓦米夏埃尔·贝格特
Owner CARL ZEISS MEDITEC AG