发明名称 |
Integrated heating/sensing catheter apparatus for minimally invasive applications |
摘要 |
Medical catheter apparatus for minimally invasive applications includes a probe for radiating electromagnetic waves of a first frequency capable of heating tissue and detecting thermal emissions from that tissue of a second frequency indicative of tissue temperature. The probe has an inner conductor extending along the probe to a conductive probe tip and a concentric tubular outer conductor having a leading end spaced rearwardly from the probe tip and a closed trailing end shorted to the inner conductor. A dielectric sheath surrounds the outer conductor which sheath has a leading end spaced rearwardly from the leading end of the outer conductor. A diplexer integrated into the probe includes a filter circuit positioned inside the outer conductor and a coupling capacitor connected between a point on the inner conductor and the input of the filter circuit such that the conductors between that point and the shorted trailing end of the outer conductor constitute a quarter wave stub at the second frequency.
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申请公布号 |
US7769469(B2) |
申请公布日期 |
2010.08.03 |
申请号 |
US20060474883 |
申请日期 |
2006.06.26 |
申请人 |
MERIDIAN MEDICAL SYSTEMS, LLC |
发明人 |
CARR KENNETH L.;ALLISON ROBERT C. |
分类号 |
A61B18/04;A61B18/18 |
主分类号 |
A61B18/04 |
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