Patent ID: 7561906
Filing Date: 2009-07-14
Classification: A61N

Abstract:
1. A lead for an electronic device which resists the induction of a current from an electromagnetic field external to said lead, comprising: one or more pairs of adjacent segments of electrical wire, each of said pairs including a first segment of electrical wire and a second segment of electrical wire; and one or more shielded RF chokes, each of said shielded RF chokes being provided between the first segment of electrical wire and the second segment of electrical wire of a respective one of said one or more pairs of adjacent segments and having a first end operatively coupled to the first segment of electrical wire and a second end operatively coupled to the second segment of electrical wire of the respective one of said one or more pairs of adjacent segments, wherein the lead with the lead segments and the RF chokes is configured to resist induction of current from an electromagnetic field that is external to the lead associated with an operating frequency of an MRI system.