Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Web – sheet or filament bases; compositions of bandages; or...
Reexamination Certificate
2008-05-20
2008-05-20
Ghali, Isis (Department: 1615)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Web, sheet or filament bases; compositions of bandages; or...
C424S445000, C424S447000, C424S449000, C424S402000
Reexamination Certificate
active
07374777
ABSTRACT:
A cell occlusion sheet membrane adapted for repairing a damaged meningeal tissue. The sheet membrane contains a layer of cross-linked, oriented biopolymeric fibers that has a thickness of 0.1 mm to 3.0 mm, a density of 0.1 g/cm3to 1.2 g/cm3, a hydrothermal shrinkage temperature of 45° C. to 80° C., a suture pullout strength of 0.1 kg to 5 kg, a tensile strength of 10 kg/cm2to 150 kg/cm2, and permeability to molecules having molecular weights of 200 to 300,000 daltons. Also disclosed is a method for making the membrane.
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Hansen Peggy
Li Shu-Tung
Yuen Debbie
Collagen Matrix, Inc.
Ghali Isis
Occhiuti Rohlicek & Tsao LLP
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