Clutch and valving system for tetherless biopsy device

Details Clutch and valving system for tetherless biopsy device Clutch and valving system for tetherless biopsy device

2007-12-27

2010-12-21

Hindenburg, Max (Department: 3736)

Surgery

Diagnostic testing

Sampling nonliquid body material

C600S562000, C600S563000, C600S553000, C600S565000, C600S567000, C600S568000

Reexamination Certificate

active

07854706

ABSTRACT:
A biopsy device may include a needle, a cutter, and a handpiece. A vacuum pump may be provided in the handpiece for providing a vacuum to the needle and/or to the cutter. A motor may be provided in the handpiece to drive the vacuum pump and/or the cutter. A biopsy device may also include a valving mechanism within the handpiece for selectively communicating a vacuum and/or atmospheric air to the needle. A clutching mechanism may selectively provide communication between a motor and the cutter. Portions of a valving mechanism and a clutching mechanism may be integrally formed. A clutching and valving mechanism may be driven by a first motor; and a cutter and vacuum pump by a second motor. A biopsy device may include batteries for powering motors. A biopsy device may thus provide vacuum and power from within a handpiece, such that the biopsy device is tetherless.

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