Fiberoptic Temperature Sensors In The Medical Setting

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Abstract
This paper summarizes the design and performance of an assortment of fiberoptic temperature probes that may be used with the Luxtron Fluoroptic® thermometer. These probes are made specifically for medical applications and most of them are available as commercial products. The probe types range from single sensors to linear arrays of multiple sensors. More recently, a catheter-borne sensor has also been developed. Prototypes of probes with very small tips (0.2 to 0.3mm in diameter) have demonstrated immunity to heating by both microwaves and ultrasonic waves. When used with Luxtron's Model 3000, the temperature precision of the probes is +/- 0.1°C and the accuracy is +/- 0.2°C. A simple low-cost connector has also been developed to facilitate convenient probe-to-extension-cable connection. All materials used are biocompatible and can withstand multiple cycles of ETO gas sterilization. Most of the probes have undergone clinical evaluation and have been proven practical for routine medical use.

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