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Proceedings Paper

A Fiberoptic Temperature Sensor And Control System For Laser Thermal Angioplasty
Author(s): Vahid Saadatmanesh; Hany M. G Hussein
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Paper Abstract

An electro-optical system has been developed to monitor and control the temperature of the metal tip laser thermal angioplasty catheters. This system captures the infrared radiation (IR) emitted from the hot metal tip during the angioplasty procedure. The infrared energy travels through the same fiber that is used to deliver the laser energy and reaches the photodetector through special collection optics. The photodetector signal is further processed and correlated with the temperature of the probe tip. The temperature of these probes can be controlled in the range of 200 to 600 degrees centigrade. Additionally this infrared system allows performance of diagnostics on the fiber itself and detects conditions that may cause temperature fluctuations at the probe tip. This system has been tested with fibers ranging in core diameter from 116 to 600 micrometers and probe tip diameters from 0.5 to 5.0 millimeters.

Paper Details

Date Published: 15 June 1989
PDF: 12 pages
Proc. SPIE 1067, Optical Fibers in Medicine IV, (15 June 1989); doi: 10.1117/12.952108
Show Author Affiliations
Vahid Saadatmanesh, Trimedyne, Inc (United States)
Hany M. G Hussein, Trimedyne, Inc (United States)

Published in SPIE Proceedings Vol. 1067:
Optical Fibers in Medicine IV
Abraham Katzir, Editor(s)

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