Biopsy apparatus with tapered vacuum chamber

Details Biopsy apparatus with tapered vacuum chamber Biopsy apparatus with tapered vacuum chamber

1993-01-05

1994-02-01

Pellagrino, Stephen C.

Surgery

Truss

Pad

128754, 606170, A61B 1000

Patent

active

052824764

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 remains stationary, 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: 4747414 (1988-05-01), Brossel
patent: 4776346 (1988-10-01), Beraha et al.
patent: 4817631 (1989-04-01), Schnepp-Pesch et al.
patent: 5025797 (1991-06-01), Baran
patent: 5220926 (1993-06-01), Jones

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