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Implantable putty material

  • US 8,497,236 B2
  • Filed: 07/25/2008
  • Issued: 07/30/2013
  • Est. Priority Date: 02/13/1998
  • Status: Expired due to Term
First Claim
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1. An implantable moldable putty material for delivery of an active ingredient to a patient comprising collagen and a first acidic solution having a pH between about 3 and about 6, wherein the collagen has been combined with a sufficient amount of the first acidic solution and formed the moldable putty material, wherein the collagen was previously processed by combining the collagen with a second acidic solution and lyophilizing the combined collagen and second acidic solution;

  • wherein the first acidic solution includes an acid different from an acid included in the second acidic solution, wherein said putty material has at least one physical property selected from the group consisting of a peak resistance force of at least about 10 g and an extensibility of from about 2 mm to about 25 mm.

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