Viscoelastic fluid for use in surgery and other therapies and method of using same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 26, 1991
Issued Date -
N/A
app pub date -
Aug 10, 1990
filing date -
May 4, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This invention relates to an improved viscoelastic fluid or gel for use in surgery and other therapies which consists of polyethylene oxide in selected concentrations not to exceed approximately 15% (15,000 ppm), contained in a physiologic balanced salt solution. The PEO may also be used in conjunction with viscosity enhancers which also act as heat stabilizers such as methylcellulose and its derivatives, polyvinyl pyrrolidone of polyvinyl alcohol or in conjunction with elasticizes such as low molecular weight polyethylene glycols or polypropylene glycols or in conjunction with gelation modifiers. These mixtures may be modified to increase retention time in the body by crosslinking with the use of material like dimethyl urea. The invention encompasses the novel method of protecting and lubricating the corneal tissues during surgery with uses of different concentrations of the same solution introduced simultaneously to protect the inner cornea while periodically irrigating the outer cornea, all without obscuring the surgeon's view of the site. This invention also prevents the development of wound adhesion and has many utilizations in orthopedics.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully