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:
Aug. 07, 1990
Filed:
Mar. 31, 1989
Jiri Sulc, Prague, CS;
Zuzana Krcova, Prague, CS;
Ceskoslovenska akademie ved, Prague, CS;
Abstract
A hard introcular lens having shape memory consisting of a copolymer having a glass transition temperature (T.sub.g) from 40.degree. C. to 60.degree. C. that is deformable into the shape of a straight or bent rod with a diameter of 1 to 4 mm at a temperature above its T.sub.g temperature and cooled to fix the deformation for insertion into the human eye through a small incision. After insertion into the eye the deformed lens will soften and relax to its original undeformed shape by elevating its temperature with a rinsing solution above 40.degree. C. and will maintain its final shape after a subsequent temperature reduction at normal body temperature of about 37.degree. C. whereby the lens becomes a hardened lens.