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US 2014/0005762 A1Published application
Drug-eluting polymer coated implantable electrode
AssigneeMedtronic, Inc.
InventorsPaul H. Wu, Catherine E. Taylor, Terrel M. Williams
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Abstract
An electrode of an implantable medical lead is coated with a polymeric composition that includes (i) a terpolymer formed from monomer subunits consisting essentially of vinyl acetate, alkyl methyl acrylate and n-vinyl pyrrolidone; (ii) a copolymer formed from monomer subunits consisting essentially of vinyl acetate and alkyl methacrylate; and (iii) polyvinyl pyrrolidone. The coating does not substantially adversely affect impedance properties of the electrode.
Claims20
An implantable medical lead comprising:
- an electrode configured to contact tissue when implanted;
- a contact electrically coupled to the electrode, wherein the contact is configured to electrically couple the lead to a medical device;
- and
- a coating on the electrode, the coating comprising a polymer composition that includes
- (i) a terpolymer formed from monomer subunits consisting essentially of vinyl acetate, alkyl methyl acrylate and n-vinyl pyrrolidone;
- (ii) a copolymer formed from monomer subunits consisting essentially of vinyl acetate and alkyl methacrylate;
- and
- (iii) polyvinyl pyrrolidone,
- wherein the coating does not substantially adversely affect impedance properties of the electrode.
6 more elements
A method comprising:
- coating an electrode with a polymer composition comprising (i) a terpolymer formed from monomer subunits consisting essentially of vinyl acetate, alkyl methyl acrylate and n-vinyl pyrrolidone;
- (ii) a copolymer formed from monomer subunits consisting essentially of vinyl acetate and alkyl methacrylate;
- and (iii) polyvinyl pyrrolidone;
- and
- incorporating the coated electrode into an implantable medical lead during assembly of the lead.
2 more elements
Dependencies are inferred from the claim text.