ELECTRODE CONSTRUCTION FOR IMPLANTABLE MEDICAL ELECTRICAL LEADS

An implantable electrode for electrical stimulation of a body, for example, being a component of an implantable medical electrical lead, is preferably in the form of a coiled conductor wire, wherein the wire is formed by a tantalum (Ta) core directly overlaid with a platinum-iridium (Pt-Ir) cladding...

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Bibliographic Details
Main Author BOSER GREGORY A
Format Patent
LanguageEnglish
Published 01.05.2014
Subjects
BASIC ELECTRIC ELEMENTS
CURRENT COLLECTORS
ELECTRICITY
ELECTROTHERAPY
HUMAN NECESSITIES
HYGIENE
LINE CONNECTORS
MAGNETOTHERAPY
MEDICAL OR VETERINARY SCIENCE
RADIATION THERAPY
ULTRASOUND THERAPY
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Summary:An implantable electrode for electrical stimulation of a body, for example, being a component of an implantable medical electrical lead, is preferably in the form of a coiled conductor wire, wherein the wire is formed by a tantalum (Ta) core directly overlaid with a platinum-iridium (Pt-Ir) cladding. When a maximum thickness of the Pt-Ir cladding defines a cladded zone between an outer, exposed surface of the electrode and the Ta core, a surface of the Ta core encroaches into the cladded zone by no more than approximately 50 micro-inches. The tantalum core may be cold worked to improve surface quality or formed from a sintered and, preferably, grain stabilized tantalum.
Bibliography:Application Number: US201213664782