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US 2021/0363452 A1Published application
Lubricious and durable coatings for medical appliances
AssigneeMerit Medical Ireland Limited
InventorsMartin Moran, Emmanouil Kasotakis
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Abstract
Coatings for medical devices having selectable levels of durability and lubricity are disclosed. The coatings include polymeric material components, the characteristics and relative amounts of which can be selected to provide target levels of durability and lubricity. Methods of making the coatings for medical devices are also disclosed.
Claims20
A coating for a medical device, comprising:
- a base coating layer comprising a polyurethane;
- a top coating layer disposed on the base coating layer, said top coating layer comprising a toughening polymer comprising an acrylate polymer and a hydrophilic lubricative polymer, wherein the lubricative polymer comprises a salt monomer.
A medical device having a durable lubricious coating, comprising:
- a body having an exterior surface;
- a jacket coating disposed on the exterior surface;
- a base coating layer disposed on the jacket coating and comprising a polyurethane bonded to the jacket coating;
- a top coating layer disposed on the base coating layer and comprising a toughening polymer comprising an acrylate polymer and a hydrophilic lubricative polymer, wherein the lubricative polymer comprises a salt monomer.
1 more element
A method of coating a medical device, comprising:
- forming a base coating layer comprising a polyurethane on an exterior surface of a medical device body;
- forming a top coating layer on the top of the base coating layer, wherein the top coating layer comprises a toughening polymer and a lubricative polymer, said lubricative polymer comprising a saltable monomer;
- curing the top coating layer to bind the lubricative polymer to the base coating layer;
- and
- activating the top coating layer to render the top coating layer hydrophilic.
2 more elements
Dependencies are inferred from the claim text.