The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 28, 1992
Filed:
Mar. 02, 1988
John T Capecchi, Oakdale, MN (US);
Carl Franzblau, Newton, MA (US);
Donald F Gibbons, North Oaks, MN (US);
William B Isaacson, Hudson, WI (US);
Manley R Johnston, Mahtomedi, MN (US);
Randall L Knoll, Mahtomedi, MN (US);
Howard M Leibowitz, Weston, MA (US);
Vickery Trinkaus-Randall, Maynard, MA (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
A corneal prosthesis including an optical element having an optically transparent central portion and an anterior surface capable of supporting a layer of epithelial cells, the optical element being made of optical material having water content between 50% and 90% and a tensile strength greater than 20 kg/cm.sup.2, and a porous outer skirt secured to the periphery of said element, said skirt being sufficiently porous to permit cell ingrowth and tissue attachment. Also disclosed are methods of making, seeding and using corneal implants having epithelial layers thereon and porous implant material of a coherent mass of randomly oriented fibers having an interconnected network of pores.