Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Patent
1997-10-06
1998-09-15
Casler, Brian
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
128908, A61B 100
Patent
active
058072535
ABSTRACT:
A patient isolation device is used as a safety device to provide electrical insulation between medical electronic equipment and portions of the equipment which come in contact with the patient. In one implementation of the patient isolation device, an RF coil is incorporated in a catheter connected to medical electronic equipment which tracks the position of the catheter. Typically, there is also medical imaging electronics to provide internal images of the subject along with an indication of the location of the catheter. Typically, the signal from the RF coil is provided to a preamplifier to amplify the signal. The isolation device is placed between the RF coil and the preamplifier such that MR response signals may pass through to the preamplifiers but in the event of a short or electrical malfunction the line voltage will not pass backward into the RF coil causing damage to the patient.
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Dumoulin Charles Lucian
Giaquinto Randy Otto John
Rohling Kenneth William
Watkins Ronald Dean
Casler Brian
General Electrical Company
Snyder Marvin
Zale Lawrence P.
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