Implantable medical apparatus having an omnidirectional antenna for receiving radio frequency signals
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United States of America Patent
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May 12, 2009
Grant Date -
Sep 14, 2006
app pub date -
Mar 8, 2005
filing date -
Mar 8, 2005
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An radio frequency antenna assembly is provided for a medical device such as one capable of being implanted into a patient. The antenna assembly includes a plurality of antennas, each oriented to receive a radio frequency signal propagating along a different axis. This facilitates reception of the radio frequency signal regardless of the orientation of its propagation axis to the medical device. In other cases, the radio frequency signal has a plurality of components, each propagating along a different axis, and each antenna of the assembly receives a different one of those components. The individual electrical signals produced in each antenna are additively combined into a single signal having greater strength than each of the individual electrical signals.
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