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:
Jan. 23, 2001
Filed:
Apr. 16, 1999
Applicant:
Inventors:
Atsushi Kanai, Toshima-ku, Tokyo 170-0003, JP;
Teruo Miyata, Tokyo, JP;
Hiroshi Itoh, Tokyo, JP;
Akiko Tanaka, Tokyo, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 3/817 ; A61K 3/800 ;
U.S. Cl.
CPC ...
A61K 3/817 ; A61K 3/800 ;
Abstract
An auxiliary agent for ophthalmic surgery is based on collagen and, after the completion of surgery, undergoes a lowering in viscosity, and thus can be easily removed. This agent is a neutral solution of collagen which is transparent at a neutral pH and has a denaturation temperature below the intraocular temperature, or a derivative thereof. The agent has a visual light transmission at 400 nm of at least 90% of that before the denaturation, when solution is heated to cause denaturation.