Surgery – Instruments – Means for removal of skin or material therefrom
Patent
1991-03-05
1992-05-12
Pellegrino, Stephen C.
Surgery
Instruments
Means for removal of skin or material therefrom
606131, A61B 1700
Patent
active
051123410
ABSTRACT:
A hair removal device having a multiple-tweezer element arranged to pluck skin hair, by plucking action of a set of movable tweezers in a continuously repetitive fashion. In the preferred embodiment, the hair removal device is provided as a hand-held, motor-powered design having a hair plucking element which comprises a set of disc-shaped, fixed-position tweezer elements and an interleaved set of disc-shaped, movable tweezer elements mounted on a central shaft. The spaces formed between these elements are repetitively opened and closed by lateral push-pull sliding motion of the shaft against a cam which drives the movable elements in both directions in relation to the fixed-position elements, to trap and pluck skin hair. The design allows for an increase in the effective number of hair plucking operations over prior art designs since the spaces may be closed at any time, thus improving the mechanical efficiency without additional mechanical parts. In an alternative embodiment, an external support cylinder supports the edges of the movable elements, concentrating the plucking force developed, and reducing the central shaft movement by approximately half, thus enabling a further increase in the number of hair plucking operations. In another alternative embodiment, the fixed-position tweezer elements are provided in a cloverleaf-shaped drum formed with slits within which the movable elements are disposed.
REFERENCES:
patent: 4079741 (1978-03-01), Daar et al.
patent: 5032126 (1991-07-01), Cleyet et al.
patent: 5041123 (1991-08-01), Oliveau et al.
Dawson Glenn K.
Langer Edward
Pellegrino Stephen C.
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