Surface modification to improve lubricity, abrasion resistance and temperature resilience of leads

A method for forming a lubricious coating on a lead body including an outer surface and at least one lumen having an inner surface, the method comprising:

• a) contacting the inner and outer surfaces of the lead body with a coating composition comprising a solvent and a silane surface modifying agent having a formula of:
• wherein:
• R is selected from the group consisting of unsubstituted and halogen-substituted aliphatic, cycloaliphatic, aromatic and linear and branched alkyl-substituted aromatic groups having less than or equal to about fifteen carbons or wherein R is selected from the group consisting of short chain polymers where the number of monomer units ranges from 1 to 15;
• and R1, R2, and R3 are each independently selected from the group consisting of hydrogen, hydroxy, halogen, alkyl halogen-substituted alkyl acyl, acetoxy, alkoxy and acyloxy groups, and combinations thereof;
• b) exposing the contacted surfaces to a humid environment;
• and
• c) after exposure, curing the coating composition on at least one of the outer and inner surface of the lead body to form a siloxane coating.