Surgery – Truss – Pad
Patent
1988-03-11
1990-10-16
Hindenburg, Max
Surgery
Truss
Pad
433 32, 374155, A61B 500
Patent
active
049627651
ABSTRACT:
A periodontal probe has a probe finger extending from a handle to an L-shaped distal end which includes a tip adapted for insertion into a periodontal pocket and formed of a thermally insulative material. A temperature sensing element is mounted at the extreme end of the tip. Conductive leads extend from the sensing element, through the probe tip to the handle. In a preferred embodiment, the temperature sensor is a thermocouple or thermistor, and the tip is sealed within an epoxy outer skin. The tip tapers so that the thermal mass of the probe in the vicinity of the sensing element quickly attains the temperature of surrounding tissue while minimally perturbing that temperature. The handle may contain signal processing or temperature display units, and the probe tip preferably includes graduations for indicating probe depth. Interchangeable sensor matching circuit elements adapt sensor elements having different characteristics to a common display driver. A system includes a probe and a processor with a display which indicates periodontal site locations to prompt entry of temperature measurements and to display disease indications based on those measurements. The temperatures are processed and are compared to stored tables of temperature difference distributions, to provide site-specific tissue diagnosis.
REFERENCES:
patent: 3552210 (1971-01-01), Wright
patent: 3935640 (1976-02-01), Cohan
patent: 4280508 (1981-07-01), Barrada
patent: 4379461 (1983-04-01), Nilsson et al.
patent: 4501555 (1985-02-01), Ditchborn
patent: 4537573 (1985-08-01), Sunada
patent: 4580909 (1986-04-01), McIntosh
patent: 4614443 (1986-09-01), Hamert
Does a Temperature Gradient Exist Across the Mucogingival Junction? N. Brill, et al., Journal of Oral Rehab. 1978, vol. 5, pp. 81-87.
The Temperature of the Gingival Sulci. S. Mukherjee, J. Periodontal, v. 49, No. 11, Nov. 1978, pp. 580-584.
Kung Robert T. V.
Moutafis Timothy E.
Ochs Burt D.
Abiomed, Inc.
Hindenburg Max
Lacyk John P.
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