Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Reexamination Certificate
2011-03-22
2011-03-22
Manuel, George (Department: 3762)
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
Reexamination Certificate
active
07912552
ABSTRACT:
A medical device including an elongate lead connected to a pulse generator connector further includes a passive lossy circuit electrically connected in between a distal portion of the lead conductor and the high frequency-grounded surface. The passive lossy circuit has a high frequency impedance approximately equal to a characteristic impedance of the lead when implanted in a body and dissipates energy of an incident wave formed along the lead, thereby diminishing a reflection of the incident wave, the incident wave being induced by exposure of the medical device to a high frequency electromagnetic field. The passive lossy circuit further has low pass properties allowing for normal device operation.
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Barry Carol F.
Manuel George
Medtronic Inc.
Wieland Robert N
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