Surgery – Diagnostic testing – Temperature detection
Patent
1996-06-14
1999-09-21
Jaworski, Francis
Surgery
Diagnostic testing
Temperature detection
128DIG13, 604 52, A61B 500, A61M 3100
Patent
active
059546689
ABSTRACT:
A microwave antenna senses the temperature of tissue into which a fluid is to be injected. The fluid is injected by a needle or other vascular entry device connected to a fluid injector by a connector tube. The fluid temperature is measured by a temperature sensor attached to the connector tube. An alarm processor determines whether an extravasation occurs by comparing a temperature discrimination function derived from tissue temperature taken at different times with a calculated threshold value. The threshold value is calculated from the tissue temperature and the fluid temperature. The threshold value is recalculated and updated continuously during the fluid injection.
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Griffiths David M.
Uber, III Arthur E.
Jaworski Francis
Medrad Inc.
Stubenvoll Gretchen Platt
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