Biopsy syringe with suction vent

Details Biopsy syringe with suction vent Biopsy syringe with suction vent

1989-05-05

1990-11-06

Hindenburg, Max

Surgery

Truss

Pad

128766, 604236, A61B 1000

Patent

active

049677624

ABSTRACT:
A needle hub for use with a syringe in obtaining biopsy specimens. A needle is inserted into the area from which a specimen is to be taken. A vacuum is pulled on the needle lumen to cause tissue to be drawn into the lumen. A special vacuum release is provided on the needle hub so that a surgeon can roll back an O-ring in the hub to expose the interior of the hub to atmosphere, thus releasing the vacuum pull on the needle lumen and allowing the needle to be withdrawn without dilution of the specimen, or contamination by material from other sites.

REFERENCES:
patent: 3957052 (1976-05-01), Topham
patent: 4549554 (1985-10-01), Markham
patent: 4844087 (1989-07-01), Gary

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