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US 6,632,470 B2Granted
Methods for surface modification
AssigneePercardia, Inc.
InventorsMarco Morra, Clara Cassinelli, Linda Lee Cahalan, Patrick T. Cahalan
Life of this patent
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Abstract
A method of modifying surfaces of a device, for example, a medical device, is disclosed. The method includes modifying a surface of a device by providing a device, exposing the device to a reactive gas and plasma energy to create a plasma deposited surface on the device, and quenching the device with the reactive gas. The device exhibits changes in its surface properties thereby making it more desirable for an intended use.
Claims17
A method of modifying a surface of a device, comprising:
- providing the device;
- exposing the device to a reactive gas and plasma energy to create a plasma deposited surface on the device, the reactive gas being chosen from propylene, propane, and tetramethyldisiloxane;
- and
- quenching the device with the reactive gas.
1 more element
A method of modifying a surface of a medical device, comprising:
- providing the medical device;
- placing the medical device in a plasma chamber;
- infusing air into the plasma chamber;
- exposing the medical device to air and plasma energy to clean the surface;
- exposing the medical device to a reactive gas and plasma energy to create a plasma deposited surface on the device, the reactive gas being chosen from propylene, propane, and tetramethyldisiloxane;
- quenching the medical device with the reactive gas by infusing the plasma chamber with the reactive gas;
- exposing the medical device to a surface graft material to bind the surface graft material to the plasma deposited surface;
- and
- coupling a surface reactant species to the grafted surface.
6 more elements
Dependencies are inferred from the claim text.