초록 ▼

A temperature probe measures temperature changes within biological material while the tissue is being irradiated with microwaves. In order to measure tissue temperatures accurately a probe must be designed to function in a microwave field while causing minimum perturbation to the microwave field. Th

A temperature probe measures temperature changes within biological material while the tissue is being irradiated with microwaves. In order to measure tissue temperatures accurately a probe must be designed to function in a microwave field while causing minimum perturbation to the microwave field. This generally requires a probe being constructed of dielectric (non-metallic) material which utilizes physical phenomena which are thermally dependent yet unaffected by electromagnetic fields at the field strength and frequencies of interest. In one embodiment the structure of the probe basically includes an optical fiber bundle for conducting light both toward and away from a temperature sensitive luminescent element located at one end of the optical fiber bundle, the source for exciting the temperature sensitive element and a light responsive detection element located at the output end of the optical fiber bundle for detecting light emitted from the temperature sensitive element which is temperature dependent. The light received by the light responsive detection element can be analyzed with regard to several parameters (intensity, frequency and phase) and thereby used for indicating the temperature of the biological sample or tissue.

대표청구항 ▼

A temperature probe adapted to be implanted in a material whose temperature is to be measured, said temperature probe comprising: an optical fiber bundle having at least one distinct group of optic fibers for optically conducting light between one end thereof and the other; a temperature sensitive e

A temperature probe adapted to be implanted in a material whose temperature is to be measured, said temperature probe comprising: an optical fiber bundle having at least one distinct group of optic fibers for optically conducting light between one end thereof and the other; a temperature sensitive element located at one end of said optical fiber bundle, said temperature sensitive element having temperature sensitive luminescent properties and being adapted to be implanted in such material whose temperature is to be measured; means located at one of said optical fiber bundle for exciting said temperature sensitive element; and light responsive detection means located at the other end of said optical fiber bundle from said temperature sensitive element for detecting light directed from said temperature sensitive element and passed through said optical fiber bundle.