Experimental Investigation of the Heat Transfer Characteristics of a Radio Frequency Surgical Probe.
NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF
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Liquid crystals, a material that exhibits brilliant changes in color over narrow temperature bands, have been successfully used to study the temperature field produced by spherical and cylindrical radio frequency surgical probes. An agar-water mixture was used to simulate tissue. Experimental temperature data were obtained by photographing the liquid crystal material through the clear agar. Comparison of experimental data with an existing theoretical solution was excellent, agreeing within 8 for the spherical probe. However, the cylindrical data and cylindrical theory agreed only to within 30, the large discrepancy being attributed to edge effects. Author
- Medical Facilities, Equipment and Supplies
- Biomedical Instrumentation and Bioengineering