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US 12,661,434 B2Granted
Hydrophilic coatings for medical devices
AssigneeHollister Incorporated
InventorDavid J. Farrell
Life of this patent
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Abstract
Hydrophilic coatings including a polymer matrix having voids wherein microparticles having a lubricious liquid are located within the voids.
Claims20
A lubricious hydrophilic coating on a medical device, comprising:
- a cured hydrophilic polymer forming a hydrophilic coating on the medical device, the cured hydrophilic polymer comprising an outer surface and a matrix having voids;
- and
- microparticles comprising a polysaccharide and water, the microparticles located in the voids of the matrix of the cured hydrophilic polymer, the microparticles configured to release the water, wherein the water migrates to the outer surface of the hydrophilic coating and the water hydrates the hydrophilic coating, thereby rendering the hydrophilic coating lubricious.
A lubricious hydrophilic coating on a urinary catheter, comprising:
- a cured hydrophilic polymer forming a hydrophilic coating on the urinary catheter, the cured hydrophilic polymer comprising an outer surface and a matrix having voids;
- and
- microparticles comprising a polysaccharide and water, the microparticles located in the voids of the matrix of the cured hydrophilic polymer, the microparticles configured to release the water, wherein the water migrates to the outer surface of the hydrophilic coating and the water hydrates the hydrophilic coating, thereby rendering the hydrophilic coating lubricious.
Dependencies are inferred from the claim text.