Techniques for minimizing radiofrequency-induced tissue heating

Details Techniques for minimizing radiofrequency-induced tissue heating Techniques for minimizing radiofrequency-induced tissue heating

A - Human Necessities

61

B

A61B 18/00 (2006.01) A61F 2/48 (2006.01) A61N 1/378 (2006.01) H02J 17/00 (2006.01)

Patent

CA 2612928

Methods and systems are provided for wirelessly power-ing a medical device in a living subject using external ra-diofrequency energy. A radiofrequency driving unit outside the subject irradiates the medical device. A passive an-tenna is positioned outside the subject, generally opposing the driving unit to redirect the field generally toward the device. The reradiating element increases uniformity of the electromagnetic field produced by the driving unit, which reduces local tissue heating in the subject and in person-nel attending the subject.

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