Electricity: measuring and testing – For insulation fault of noncircuit elements
Patent
1997-08-04
2000-05-02
Do, Diep N.
Electricity: measuring and testing
For insulation fault of noncircuit elements
324 711, 324556, 73 40, 604111, 600 16, G01R 3112, G01N 2700
Patent
active
060576898
ABSTRACT:
An apparatus for detecting leaks in a fluid-filled device used to treat a patient's tissue includes an catheter having an expandable device defining a fluid reservoir about the distal end of the catheter. An internal electrode is in electrical contact with a conductive fluid within the fluid reservoir. A grounding electrode is outside of the fluid reservoir, in electrical contact with the patient's tissue. Voltage is supplied to the internal electrode and the grounding electrode. Where a leak occurs in the expandable device, conductive fluid will contact the patient's tissue, thus creating an electrical current path between the internal electrode and the grounding electrode. This so-called "leak current" is used to generate a leak alarm signal.
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Do Diep N.
Gynecare, Inc.
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