Patents Assigned to Ceramedical, Inc.
  • Patent number: 6417166
    Abstract: A strong, thin flexible mineralized collagen membrane is disclosed that is useful for such medical applications as a barrier for guided tissue regeneration, periodontal defect repair, bone grafts and skin wound repair. The mineralized collagen membrane comprises a substantially homogeneous mineralized collagen composite consisting essentially of about 30% to about 70% by weight of a collagen component and about 30% to about 70% by weight of a calcium phosphate minerals component precipitated from a collagen slurry by a soluble calcium ion-containing solution and a soluble phosphate ion-containing solution. The calcium phosphate minerals component has a mole ratio of calcium to phosphate in the range of about 1.0 to about 2.0. The thin mineralized collagen membrane has a bulk density of the membrane of at least about 1.0 g/cm3 and has a thickness not greater than about 0.5 mm and preferably not greater than about 0.3 mm.
    Type: Grant
    Filed: May 19, 2001
    Date of Patent: July 9, 2002
    Assignee: Ceramedical, Inc.
    Inventor: Sung-Tsuen Liu
  • Patent number: 6300315
    Abstract: A thin, strong, flexible mineralized collagen membrane is disclosed that is useful for such medical applications as a barrier for guided tissue regeneration, periodontal defect repair, bone grafts and skin wound repair. The mineralized collagen membrane comprises a substantially homogeneous mineralized collagen composite consisting essentially of about 30% to about 70% by weight of a collagen component and about 30% to about 70% by weight of a calcium phosphate minerals component precipitated from a collagen slurry by a soluble calcium ion-containing solution and a soluble phosphate ion-containing solution. The calcium phosphate minerals component has a mole ratio of calcium to phosphate in the range of about 1.0 to about 2.0. The thin, strong, flexible mineralized collagen membrane has a bulk density of at least about 1.0 g/cm3.
    Type: Grant
    Filed: August 28, 1999
    Date of Patent: October 9, 2001
    Assignee: Ceramedical, Inc.
    Inventor: Sung-Tsuen Liu