Prosthesis with improved biocompatibility
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United States of America Patent
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May 26, 1992
Grant Date -
N/A
app pub date -
Jul 6, 1990
filing date -
Jul 6, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An implantable prosthesis comprises a hydrogel enclosed within a flexible envelope. The hydrogel contains both hydrophilic and hydrophobic domains. It is prepared by copolymerizing a hydrophilic monomer such as water soluble N-vinylpyrrolidone, acrylates or methacrylates with non-water soluble monomers such as acrylates, methacrylates, N-vinyl carbazole, its derivatives, or a non-water soluble derivative of N-vinylpyrrolidone. The flexible envelope may be either porous or non-porous. The hydrogel may be either solid or composed of particles of a size greater than the porosity of the envelope.
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