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Biocompatible hydrophobic laminate with thermoplastic elastomer layer

  • US 5,630,844 A
  • Filed: 06/07/1995
  • Issued: 05/20/1997
  • Est. Priority Date: 06/07/1995
  • Status: Expired due to Fees
First Claim
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1. A biocompatible hydrophobic laminate structure for enveloping matter, the laminate structure and matter to be introduced into a host'"'"'s body, the laminate structure comprising:

  • a) at least one rubber layer which is biocompatible with an inside portion of the body or body tissue or body fluid;

    b) a hydrophobic, water vapor barrier membrane laminated on each rubber layer to minimize the permeation of moisture through the laminate structure;

    c) with the hydrophobic water vapor barrier membrane being isolated from the inside portion of the body or body tissue or body fluid by the at least one rubber layer; and

    d) with the hydrophobic membrane comprising a thermoplastic elastomer which is substantially impermeable to water vapor and which is present in the membrane in a concentration effective such that the membrane also is substantially impermeable to water vapor and such that, when formed as an implantable water-based fluid enveloping structure, said structure prevents substantial permeation of the water vapor contained therein, barring rupture of said implantable structure.

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