Ultrasonic medical instrument

Details Ultrasonic medical instrument Ultrasonic medical instrument

1982-09-30

1985-08-20

Howell, Kyle L.

Surgery

Truss

Perineal

128343, A61H 2300

Patent

active

045357595

ABSTRACT:
An ultrasonic friction reducing device is comprised of an ultrasonic generator having a special sweep frequency oscillator, a piezoelectric crystal transducer and a cervical dilator probe. The generator produces an oscillatory electric current for the operation of the device. The piezoelectric crystal transducer converts the oscillatory electric current produced by the generator into a vibratory mechanical motion. The transducer, through mechanical coupling, transmits the ultrasonic energy into the friction reducing probe.

REFERENCES:
patent: 3589363 (1971-06-01), Banko
patent: 3792701 (1974-02-01), Kloz et al.
patent: 3884239 (1975-05-01), Bucaio
patent: 3927675 (1975-12-01), Pohlman et al.
patent: 3980906 (1976-09-01), Kuris
patent: 4013079 (1977-03-01), Lindemann
patent: 4136700 (1979-01-01), Broadwin et al.
patent: 4169984 (1979-10-01), Parisi
patent: 4249901 (1981-02-01), Wieser
patent: 4315514 (1982-02-01), Drewes

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