Lead conductor with pitch and torque control for MRI conditionally safe use
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United States of America Patent
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Sep 2, 2014
Grant Date -
Mar 1, 2012
app pub date -
Jun 9, 2011
filing date -
Aug 30, 2010
priority date (Note) -
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Abstract
A medical device lead includes an insulated lead body including at least one electrode, a helically coiled conductor electrically coupled to the at least one electrode, and one or more polymer coils formed coaxially with the helically coiled conductor. The helically coiled conductor includes a plurality of turns having a conductive coil pitch and including one or more conductive filars each having a conductive filar diameter. The one or more polymer coils provide at least about 25 μN·m of torque transmitting capacity along a length of the medical device lead.
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