Bio-effecting medical material and device
AssigneeHydromer, Inc.
InventorsDonald H. Lorenz, Walter S. Creasy
Life of this patent
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Abstract
A medical material comprising a polyurethane complexed with polyvinylpyrrolidone and a bio-effecting agent, such as an anti-bacterial agent, complexed with the polyvinylpyrrolidone. The material is used per se as, for example a foam, and as a coating for medical devices such as, for example, catheters and wound drainage tubes.
Claims18
A medical material comprising:
- an anti-bacterial agent or anti-fungal agent complexed with polyvinylpyrrolidone which has been rendered insoluble in water and body fluids by being complexed with a polyurethane prior to complexing with said agent;
- said medical material being capable of releasing said anti-bacterial- or anti-fungal-polyvinylpyrrolidone complexed agent from said polyurethane-polyvinylpyrrolidone complex when said complex is in contact with water or body fluids.
An anti-bacterial article comprising:
- a substrate,
- a coating on the substrate comprising a polyurethane complexed with polyvinylpyrrolidone and an anti-bacterial agent complexed with said polyvinylpyrrolidone.
A device for treating athlete's foot comprising a pad of a polyurethane foam complexed with polyvinylpyrrolidone which is complexed with an anti-bacterial and anti-fungal agent.
A medical material obtained from the process which comprises contacting a polyurethane-polyvinylpyrrolidone foam complex with a bio-effecting agent whereby at least some of the bio-effecting agent forms a complex with the polyvinylpyrrolidone present in the polyurethane-polyvinylpyrrolidone foam complex, said medical material releasing water-soluble polyvinylpyrrolidone-bio-effecting complex when contacted with water or a body fluid.
A medical material obtained from the process which comprises contacting a polyurethane-polyvinylpyrrolidone film complex with a bio-effecting agent whereby at least some of the bio-effecting agent forms a complex with the polyvinylpyrrolidone present in the polyurethane-polyvinylpyrrolidone film complex, said medical material releasing water-soluble polyvinylpyrrolidone-bio-effecting complex when contacted with water or a body fluid.
Dependencies are inferred from the claim text.