Method for prevention of rejection and sever encapsulation of a supportive or functioning implant

Patent metadata

Field	Value
Publication number	US-9681942-B2
Application number	US-60824909-A
Country	US
Kind code	B2
Filing date	Oct 29, 2009
Priority date	Nov 7, 2001
Publication date	Jun 20, 2017
Grant date	Jun 20, 2017

Abstract

A method of preventing rejection of an implant in the eye, includes forming a flap in the cornea of the eye, inserting an implant under the flap, cross linking corneal tissue surrounding an implant to make the corneal tissue surrounding an implant less vulnerable to enzymatic degradation, inserting polymeric material under the corneal flap so as to overlie corneal tissue, compressing a layer of the cornea from outside using a lens having a predetermined curvature to correct refractive error of the cornea, and cross linking corneal tissue that the polymeric material overlies.

First claim

What is claimed is:

1. A method of preventing rejection of an implant in the eye, comprising:
forming a flap in the cornea of the eye, wherein said forming a flap includes cutting the flap with one of a micro-keratome and a femto-second laser, the flap being cut so as to have a diameter between 2 mm-12 mm and a thickness of 50 microns to 400 microns;
raising the flap so as to expose stromal tissue of the cornea;
applying a cross linking material in the form of Riboflavin to the stromal tissue of the cornea under the flap;
inserting an implant under the flap so as to overlie the stromal tissue of the cornea;
covering at least a central portion of the implant with the flap; and
after said inserting the implant under the flap, cross linking corneal tissue vulnerable to enzymatic degradation surrounding the implant to decrease the vulnerability of corneal tissue surrounding the implant to enzymatic degradation, to make the corneal tissue surrounding the implant less likely to be invaded by migrating cells, and to prevent encapsulation around the implant.

Assignees

• Peyman Gholam A

Inventors

• Peyman Gholam A

Classifications

• A61F7/007

  characterised by electric heating · CPC title

• A61F9/008

  using laser · CPC title

• A61F2/142

  Cornea, e.g. artificial corneae, keratoprostheses or corneal implants for repair of defective corneal tissue · CPC title

• A61F2/14

  Eye parts, e.g. lenses or corneal implants; Artificial eyes · CPC title

• A61F9/00838

  Correction of presbyopia · CPC title