Back to results
US 12,582,340 B2Granted
Electrode with protected impedance reduction coating
AssigneeSt. Jude Medical, Cardiology Division, Inc.
InventorsBrian Pederson, Greg Olson
Life of this patent
Estimating the term…
Abstract
A catheter includes a shaft including a proximal end and a distal end, an electrical conductor coupled to the catheter, and an electrode coupled to the electrical conductor. The electrode includes at least one recessed portion, and an impedance reduction layer disposed in the at least one recessed portion. The impedance reduction layer has a thickness less than a depth of the recessed portion.
Claims19
A catheter comprising:
- a shaft including a proximal end and a distal end;
- an electrical conductor extending along the shaft;
- and
- an electrode disposed along the distal end of the shaft and coupled to the electrical conductor, the electrode comprising:
- at least one recessed portion defined by a respective at least one metal edge;
- and
- an impedance reduction layer disposed in the at least one recessed portion, wherein the impedance reduction layer has a thickness less than a depth of the recess portion;
- wherein the impedance reduction layer is a conductive polymer based coating;
- and
- wherein the impedance reduction layer and the respective at least one metal edge of the electrode are configured to contact tissue.
7 more elements
A method of making a catheter, the method comprising:
- coupling an electrical conductor and an electrode to the catheter, the electrode having at least one recessed portion defined by a respective at least one metal edge;
- and
- disposing an impedance reduction layer in the at least one recessed portion of the electrode, wherein the impedance reduction layer has a thickness less than a depth of the recessed portion;
- wherein the impedance reduction layer is a conductive polymer based coating;
- and
- wherein the impedance reduction layer and the respective at least one metal edge of the electrode are configured to contact tissue.
3 more elements
Dependencies are inferred from the claim text.