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Apparatus for preparing cornea material for tabbed (sutureless) transplantation

United States Patent

*** EXPIRED ***
5,649,944
July 22, 1997
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
A tool and a method for preparing a donor material used in sutureless corneal transplants uses a first cutting portion to prepare a donor blank having tabbed portions extending outwardly radially. A second cutting portion is used to cut the central portion of the blank. The tool is used as a guide member for the second cutting portion. In one embodiment the tool has slits laterally defined therethrough which allow the tabbed portions of the donor material to be thinned to a desired thickness using a scalpel. In an another embodiment the second cutting portion is a round trephine which is used to simultaneously trim each of the tabbed portions.
Collins; Joseph Patrick (St. Petersburg, FL)
08/ 329,709
October 26, 1994
The United States Government has rights in this invention pursuant to contract no. DE-AC04-92AL73000 between the United States Department of Energy and Martin Marietta Specialty Components, Inc.