Conductive composite electrode material
First Claim
1. A medical electrical lead comprising:
- a lead body including a conductor extending from a proximal end adapted to be connected to a pulse generator to a distal end; and
at least one electrode operatively connected to the conductor, the electrode comprising a polymer matrix including a conductive polymer doped with an excess of a negatively charged polyelectrolyte and pseudo-capacitive, transition metal oxide particles dispersed throughout the polymer matrix.
1 Assignment
0 Petitions
Accused Products
Abstract
A medical electrical lead and body implantable electrode suitable for a variety of medical applications are disclosed. In general, the electrode includes a composite material having particles of pseudo-capacitive material, such as iridium oxide, dispersed within a polymer matrix including a polyelectrolyte. The polymer matrix can also include a conductive polymer doped with an excess of the polyelectrolyte. The composite may used to form the electrode itself or an electrode coating. The presence of a pseudo-capacitive material within the composite may increase the charge-storage capacity of the electrode and may allow for safe deliveries of charge densities within an electrochemical window suitable for pacing a patient'"'"'s heart.
59 Citations
23 Claims
-
1. A medical electrical lead comprising:
-
a lead body including a conductor extending from a proximal end adapted to be connected to a pulse generator to a distal end; and at least one electrode operatively connected to the conductor, the electrode comprising a polymer matrix including a conductive polymer doped with an excess of a negatively charged polyelectrolyte and pseudo-capacitive, transition metal oxide particles dispersed throughout the polymer matrix. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A medical electrical lead comprising
a lead body including a conductor extending from a proximal end adapted to be connected to a pulse generator to a distal end; - and
an electrode comprising a conductive base material and a coating comprising a conductive composite material disposed on at least a portion of the base material, the composite material comprising a polymer matrix comprising a conductive polymer doped with an excess of a negatively charged polyelectrolyte and pseudo-capacitive, transition metal oxide particles dispersed throughout the polymer matrix. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
- and
-
20. A body implantable electrode comprising:
-
a conductive metal base; a composite coating disposed over at least a portion of the conductive base, composite coating including a polymer matrix comprising a conductive polymer doped with an excess of a negatively-charged polyelectrolyte and pseudo-capacitive, transition metal oxide particles dispersed throughout the polymer matrix. - View Dependent Claims (21, 22, 23)
-
Specification