Biopsy needles

Details Biopsy needles Biopsy needles

1994-05-27

1996-04-09

Rimell, Sam

Surgery

Truss

Pad

128753, 128749, A61B 1000

Patent

active

055052118

ABSTRACT:
The set of biopsy needles of the invention is provided with a shaft member for an inner needle 6 which has an inner needle base 22 at the front end to fix an inner needle 24, a shaft member for an outer needle 13 which has an outer needle base 21 at the front end to fix an outer needle 23, a gripping member 1 for operation which fixes the shaft member for the inner needle 6 and axially movably support the shaft for the outer needle 13, a actuating member 9 which gives protrusion force to the shaft member for the outer needle 13, a holding member 15 which holds the shaft member for the outer needle 13 at the position before protrusion against the protrusion force of the actuating member 9 and releases from holding the shaft member for the outer needle 13 before protrusion by outside operation, and a rotation generating member 10 which gives rotation force to the shaft member for the outer needle 13 when the shaft member for the outer needle 13 moves axially.

REFERENCES:
patent: 3929123 (1975-12-01), Jamshidi
patent: 3995619 (1976-12-01), Glatzer
patent: 4517965 (1985-05-01), Ellison et al.
patent: 4671292 (1987-06-01), Matzuk
patent: 4907599 (1990-03-01), Taylor
patent: 4958625 (1990-04-01), Bates et al.
patent: 5127419 (1992-07-01), Kaldany
patent: 5188118 (1993-02-01), Terwilliger
patent: 5224470 (1993-07-01), Schnepp-Pesch et al.
patent: 5226426 (1993-07-01), Yoon
patent: 5282477 (1994-02-01), Bauer

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