作者: Mark Gelbien , Jan Votruba , Jevan Damadian
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摘要: A vibration assisted needle device is disclosed for use in medical procedures such as aspiration biopsies. Reciprocation of the needle, a biopsy eases advance through tissue, penetration site interest and collection sample at interest. The comprises housing defining chamber, support external to chamber supporting mechanism causing reciprocatory motion support. preferably housing. syringe may be connected syringe. comprise means converting rotational into reciprocating motion, bearing or rotor with circumferential, angled groove on its surface, coupled driven by motor, located outside housing, hydraulically turbine within Alternatively, stationary solenoid movable being needle. Preferably, second provided moving between two solenoids. Energization solenoids an alternating current example, energization direct current, vice versa, attracts repulses solenoid, reciprocation Methods systems using are also disclosed.