Back to results
US 5,769,807 AGranted
IV catheter adhesive dressing
AssigneeChicopee
InventorsTeresa Haddock, Arthur S. Hill, Shmuel Dabi
Life of this patent
Estimating the term…
Abstract
A surgical dressing consisting of a film which carries an adhesive layer wherein the film has a hydration rate of at least 0.1 g/in.sup.2 /min.; becomes saturated when in contact with water in 3 minutes or less and absorbs at least its own weight of water. The film comprises a polyethylene oxide and a polymer or polymers selected from an ether based polyurethane and a polyether block amide. The dressing finds special use as a IV catheter site cover.
Claims6
A surgical dressing which consists essentially of a continuous film in direct contact with an adhesive layer for securing the dressing to the human body wherein
- a) said film has a hydration rate of at least 0.1 g/in.sup.2 /min becomes saturated when in contact with liquid water, has a higher MVTR than when in contact with water vapor in the absence of liquid water, said film being coextruded and comprising a hydrophobic top layer and a hydrophilic bottom layer, wherein said adhesive layer is in direct contact with said hydrophilic layer,
- b) said adhesive layer is porous and allows access of water to the film when water is in contact with said adhesive layer
- and wherein said dressing has a MVTR of not less than 3000 g/m.sup.2 /day when in contact with liquid water and a MVTR greater than 2000 g/m.sup.2 /day when in contact with water vapor but not in contact with liquid water.
Dependencies are inferred from the claim text.