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:
May. 18, 1993
Filed:
Mar. 05, 1991
Applicant:
Inventors:
Graham D Barrett, Perth, AU;
Barry Stevens, Arlington, TX (US);
Assignee:
Alcon Laboratories, Inc., Fort Worth, TX (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
623-6 ; 623901 ;
Abstract
Bicomposite intraocular lenses and methods for their manufacture are disclosed. Bicomposite, hydrogel intraocular lenses with one or more haptic portions having a lower water content than the corresponding optic portions, and methods for their manufacture are disclosed. The bicomposite lenses are manufactured by (i) preparing a bicomposite button of hydrogel material containing one or more polymers or copolymers; (ii) lathing the button to produce a dehydrated intraocular lens with an optic and at least one haptic; and (iii) hydrating the lens.