MICHAEL JAN VOTRUBA
Medical Practice in Ada, MI

6702761, Mar 9, 2004

Mar 6, 2001

09/799926

Jevan Damadian - East Northport NY
Jan Votruba - Brookhaven NY
Mark Gelbien - Levittown NY
Michael Votruba - Ada MI

Fonar Corporation - Melville NY

A61B 500

600576, 600567, 600568

A vibration assisted needle device is disclosed for use in medical procedures, such as needle aspiration biopsies. Reciprocation of the needle, such as a biopsy needle, eases the advance of the needle through tissue, penetration of the site of interest and the collection of sample at a site of interest. The device comprises a housing defining a chamber, a needle support external to the chamber for supporting a needle and a mechanism in the chamber for causing reciprocatory motion of the needle support. The needle support is preferably external to the housing. A syringe support may be connected to the housing for supporting a syringe. The reciprocatory mechanism may comprise means for converting rotational motion into reciprocating motion, such as a bearing or a rotor with a circumferential, angled groove on its surface, coupled to the needle support. The bearing or the rotor may be driven by a rotational motor, preferably located outside of the housing, or by a hydraulically driven turbine within the housing. Alternatively, the reciprocatory mechanism means may comprise a stationary solenoid and a movable solenoid for being coupled to the needle.