Isotropically expansible balloon articles useful in in vivo lumenal procedures, and method of making such balloon articles
OwnerTilak M. Shahinventor
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Abstract
A balloon article, e.g., for an in vivo lumenal procedure, formed of a UV cross-linkable polyurethane material that is partially cross-linked to an extent providing a desired expansibility and/or compliant character to the balloon. The degree of cross-linking is selectively modified by the degree of UV exposure to which the balloon article is exposed, and/or the relative proportion of the cross-linking agent, to achieve corresponding product characteristics ranging from semi-compliant to non-compliant polyurethane film properties, including low creep/semi-compliant films.
Claims25
A balloon article comprising a balloon formed of a partially UV-cross-linked polyurethane material and having an exterior surface, wherein said balloon has a cross-linking density that is substantially uniform throughout at least said exterior surface.
Dependencies are inferred from the claim text.