Patent ID: 9579502
Date: 2017-02-28
CPC Classifications: A61N,H01F,H01H

Claim:
1. A method of creating a high impedance within a conduction path of an implantable medical lead, comprising: providing a first magnetically responsive actuator that when in a presence of a magnetic field of an MRI scanner moves from a first start position toward a first stop position and reaches the first stop position when the magnetic field is not oriented normal to a direction of movement of the first actuator; providing a second magnetically responsive actuator that when in the presence of the magnetic field moves from a second start position toward a second stop position and reaches the second stop position when the magnetic field is not oriented parallel to a direction of movement of the second actuator; and providing at least one switch in series with the conduction path, the at least one switch being coupled to both the first actuator and the second actuator, wherein the at least one switch resides in a closed state and achieves an open state to create the high impedance when the first actuator reaches the first stop position and/or when the second actuator reaches the second stop position.