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Hydrophilic microporous membrane for drug delivery devices and method for preparing same

  • US 5,573,668 A
  • Filed: 06/01/1995
  • Issued: 11/12/1996
  • Est. Priority Date: 10/30/1990
  • Status: Expired due to Fees
First Claim
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1. A microporous drug delivery membrane having a hydrophilic, polymeric shell, comprising:

  • a supporting structure having a complex geometric configuration and surfaces about said structure and an extremely thin, self-interlocking, tactic, hydrophilic poly(vinyl alcohol) shell enveloping at least a portion of said surfaces while substantially retaining said complex geometric configuration.

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