Patent ID: 11890642
Assignee: CONVATEC TECHNOLOGIES INC.
Field: Medical technology (Instruments)
Classification: CPC A  B | IPC A  B

Claim 5:
6. A method of modifying a medical device, the method comprising:
treating a portion of the medical device with cold plasma;
functionalizing the plasma-treated portion with a polymer; and
immobilizing a biomolecule through a linking molecule located on a surface of the plasma-treated treated portion,
wherein:
immobilizing the biomolecule through the linking molecule includes generating and maintaining a non-thermal atmospheric pressure plasma at a temperature at or below about 60° C.,
the linking molecule is deposited onto the plasma-treated portion by exposing the plasma-treated portion to a first plasma jet and the linking molecule to generate a linking layer on the plasma-treated portion,
the method further comprises depositing the biomolecule onto the linking layer by exposing the linking layer to a second plasma jet and the biomolecule,
the biomolecule comprises a hyaluronic acid species, and
the biomolecule comprises a formulation compound comprising the formula:,