Biopsy apparatus

Details Biopsy apparatus Biopsy apparatus

1976-05-10

1978-07-11

Michell, Robert W.

Surgery

Truss

Perineal

301131, 128310, 128347, A61B 1000

Patent

active

040995186

ABSTRACT:
An improved biopsy apparatus is disclosed. The apparatus comprises a hollow outer cannula within which is initially disposed a solid inner puncture trocar. In use, a biopsy sample is obtained from a patient by first inserting the outer cannula - trocar apparatus into the patient to a desired location. Thereafter, the solid inner initial puncture trocar is withdrawn from the outer cannula, while the other cannula remains in place at the desired specimen location. A hollow inner cannula is then inserted into the outer cannula, and upon withdrawal of the inner cannula from the outer cannula the desired specimen is obtained within the hollow interior of the inner cannula.

REFERENCES:
patent: 2919692 (1960-01-01), Ackermann
patent: 3175554 (1965-03-01), Stewart
patent: 3512519 (1970-05-01), Hall
patent: 3683891 (1972-08-01), Eskridge et al.
patent: 3949747 (1976-04-01), Hevesy

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