Automatic biopsy instrument with independently actuated stylet a

Details Automatic biopsy instrument with independently actuated stylet a Automatic biopsy instrument with independently actuated stylet a

1991-04-24

1993-02-23

Hindenburg, Max

Surgery

Truss

Pad

128754, 606170, A61B 1000

Patent

active

051881187

ABSTRACT:
An automatic biopsy instrument includes a cannula 13 provided over a stylet 11. The stylet 11 directs the cannula 13 to a biopsy site. The instrument urges the cannula 13 past the stylet 11 in order to collect a tissue sample. The stylet 11 initially travels in a direction opposite to the direction of travel of the cannula 13, then travels in the direction of travel of cannula 13 in order to assist firstly in collecting a sample and secondly to assist in severing the tissue sample from the surrounding mass.

REFERENCES:
patent: 4476864 (1984-10-01), Tezel
patent: 4570632 (1986-02-01), Woods
patent: 4600014 (1986-07-01), Beraha
patent: 4699154 (1987-10-01), Lindgren
patent: 4747414 (1988-05-01), Brossel
patent: 4924878 (1990-05-01), Nottke
patent: 4958625 (1990-07-01), Bates et al.

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