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US 5,833,665 AGranted
Polyurethane-biopolymer composite
AssigneeIntegra LifeSciences I, Ltd.
InventorsMatthew Bootman, Ronald Yamamoto
Life of this patent
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Abstract
A method is provided for preparing a drug delivery material and device comprising cross-linking a biological polymer with a cross-linking agent and loading the cross-linked biopolymer with a bioactive agent. Preferred embodiments are disclosed wherein the drug delivery material is used in a catheter securing, drug delivery device, in a wound dressing, and in a wound dressing for percutaneous catheters.
Claims18
A percutaneous catheter wound dressing and drug-delivery device comprising
- an elastomeric pad having a first radial slit extending from the edge of said pad to a central point proximate to the center of said pad, said pad comprising a cross-linked biopolymer and at least one bioactive agent reversibly bound to said cross-linked biopolymer, said bioactive agent being releasable from said cross-linked biopolymer in a controlled manner to a wound or to skin when said pad is placed in contact with said wound or skin. manner to a wound or to skin when said pad is placed in contact with said wound or skin.
Dependencies are inferred from the claim text.