Fuzzy logic controlled endometrium ablator

Details Fuzzy logic controlled endometrium ablator Fuzzy logic controlled endometrium ablator

1996-04-18

1999-09-21

Downs, Robert W.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

395900, 604 54, 604 55, G06F 944, A61M 3100, A61F 700

Patent

active

059564644

ABSTRACT:
A fuzzy logic controller for a endometrium ablator heat a liquid to 85.degree. C. which is continuously circulated into the uterus to ablate the endometrium. The fluid temperature is maintained by the fuzzy logic controller which has as its inputs the temperature of the fluid and its rate of change of temperature. Associated membership functions, cold, cool, warm, hot for temperature, and negative and zero and positive for rate are respectively provided. Appropriate rules are then provided and defuzzification with the use of a singleton output function yields an output signal which controls temperature by pulse width modulation.

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