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US 6,889,092 B2Granted
High impedance electrode assembly
AssigneeCardiac Pacemakers, Inc.
InventorsQingsheng Zhu, Ronald W. Heil, Jr.
Life of this patent
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Abstract
A lead having an electrode assembly has a high impedance electrode. The high impedance electrode includes a partially insulated sleeve electrode or a wire filament. The high impedance electrode includes an exposed surface of less than 1.2 mm2. One or more eluting drugs are disposed adjacent to the high impedance electrode.
Claims20
A lead assembly comprising:
- a lead body extending from a proximal end to a distal end, the lead body including a conductor coil disposed therein;
- at least one electrode electrically coupled with the conductor coil and located entirely on an intermediate portion of the lead body between the proximal end and the distal end, wherein the electrode has a surface area less than about 1.2 mm2;
- and
- a first drug elution collar and a second drug elution collar, wherein the first drug elution collar is disposed proximate to a first side of the electrode and the second drug elution collar is disposed proximate to a second side of the electrode.
1 more element
A lead assembly comprising:
- a lead body extending from a proximal end to a distal end, the lead body including a conductor disposed therein;
- at least one electrode electrically coupled with the conductor, wherein the at least one electrode includes a conductive sleeve having an exposed electrode surface surrounding the lead body and having an area of less than about 1.2 mm2;
- and
- a first drug elution collar and a second drug elution collar, wherein the first drug elution collar is disposed proximate to a first end of the sleeve and the second drug elution collar is disposed proximate to a second end of the sleeve.
1 more element
Dependencies are inferred from the claim text.