Polymerization process and materials for biomedical applications

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20050090612A1
SERIAL NO

10502975

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A molded component or article for biomedical use is prepared from a crosslinkable non-water-soluble polymer which when crosslinked and saturated with water forms a hydrogel. The polymer is formulated as a composition containing a non-aqueous diluent in addition to the polymer, the diluent being present in a volumetric proportion that is substantially equal to the volumetric proportion of water in the hydrogel that would be formed when the polymer is crosslinked and saturated with water. The composition is cast in a mold where the composition is exposed to conditions that cause crosslinking to occur by a reaction to which the non-aqueous diluent is inert. The crosslinking reaction produces a molded non-aqueous gel which is then converted to a hydrogel by substituting an aqueous liquid such as water or physiological saline for the non-aqueous diluent. The use of a molding composition whose curing consists essentially entirely of crosslinking results in a molding process that entails little or no shrinkage, and dimensional integrity is maintained up through the formation of the hydrogel by using the non-aqueous diluent in essentially the same volumetric proportion as water in the hydrogel.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
ZMS, LLCEMERYVILLE, CA0

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fan, Shaobin Castro Valley, CA 2 24
Hino, Toshiaki Berkeley, CA 18 132
Soane, David S Piedmont, CA 188 4569

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
POWERVISION, INC. (2)
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THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY (2)
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THE UNITED STATES GOVERNMENT AS REPRESENTED BY THE DEPARTMENT OF VETERANS AFFAIRS (2)
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* Cited By Examiner