Dual probe

Details Dual probe Dual probe

2005-04-05

2005-04-05

Nguyen, Anhtuan T. (Department: 3731)

Surgery

Instruments

Cutting, puncturing or piercing

C604S022000

Reexamination Certificate

active

06875220

ABSTRACT:
A percutaneous surgical instrument for de-bulking calculi or drilling bone includes an actuator for generating vibrations at ultrasonic frequencies and a horn coupled to said actuator for amplifying the actuator vibration. A fixed probe is attached to said horn for engaging the calculi and introducing the ultrasonic frequencies thereto. A floating probe is disposed concentric to and over said fixed probe and slidable thereover. A free mass is disposed between the horn and the floating probe for oscillating therebetween, in response to actuator vibration, for causing low frequency impact with the calculi.

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patent: 5899958 (1999-05-01), Dowell et al.
patent: 6214017 (2001-04-01), Stoddard et al.

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