US 2006/0149163 A1 · Core sampling biopsy device with short coupled MRI-compatible driver

Abstract

A core sampling biopsy device is compatible with use in a Magnetic Resonance Imaging (MRI) environment by being driven by either a pneumatic rotary motor or a piezoelectric drive motor. The core sampling biopsy device obtains a tissue sample, such as a breast tissue biopsy sample, for diagnostic or therapeutic purposes. The biopsy device may include an outer cannula having a distal piercing tip, a cutter lumen, a side tissue port communicating with the cutter lumen, and at least one fluid passageway disposed distally of the side tissue port. The inner cutter may be advanced in the cutter lumen past the side tissue port to sever a tissue sample.

Claims20

Dependent claims

A biopsy device, comprising:

a piercing tube having an aperture proximate to a distal end thereof for receiving prolapsed tissue;
a cutter tube longitudinally translatable within the piercing tube;
a cutter drive assembly operatively configured to distally translate the cutter tube in proportion to a predetermined number of rotations of the cutter tube across the aperture severing received prolapsed tissue;
and
a nonferrous rotary motor coupled to an input to the cutter drive assembly.

2 more elements

Dependencies are inferred from the claim text.

Core sampling biopsy device with short coupled MRI-compatible driver

Life of this patent

Core sampling biopsy device with short coupled MRI-compatible driver

Life of this patent

Abstract

Claims20