Impedance sensing epilator

Details Impedance sensing epilator Impedance sensing epilator

1980-07-03

1983-02-08

Cohen, Lee S.

Surgery

Truss

Pad

A61B 1741

Patent

active

043723152

ABSTRACT:
An epilator for treating a hair follicle of a subject utilizes a probe into which an RF pulse is applied. Shortly after the pulse is initiated, a measure of the impedance seen by the probe is determined and utilized for the purpose of adjusting the duration of the pulse such that the energy absorbed by the subject is independent of the impedance seen by the probe. As a consequence, the energy absorbed by the subject will have a predetermined maximum value substantially independent of the impedance seen by the probe.

REFERENCES:
patent: 3127895 (1964-04-01), Kendell et al.
patent: 3315678 (1967-04-01), Donelson
patent: 3815603 (1974-06-01), Sramek
patent: 3875945 (1975-04-01), Friedman
patent: 3897789 (1975-08-01), Blanchard
patent: 4092986 (1978-06-01), Schneidermen
patent: 4167189 (1979-09-01), Tachi et al.
patent: 4224944 (1980-09-01), Roberts
patent: 4321926 (1982-03-01), Roge

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