Biopsy needle with extendable cutting means

Details Biopsy needle with extendable cutting means Biopsy needle with extendable cutting means

1992-08-31

1993-07-06

Hindenburg, Max

Surgery

Truss

Pad

606170, A61B 1000

Patent

active

052244881

ABSTRACT:
A biopsy needle having a strip of material carried within the hollow of the needle that can be extended through a lateral opening in the needle to cut and direct the sample tissue into the needle interior. Pushing on one of the ends of the strip extends it through the lateral opening as the second end is held firm. A twist is formed in the needle so that only one edge extends through the opening and the flat side of the strip guides or directs the severed sample into the needle. Turning a screw in the handle of the needle causes the end of the strip to be pushed and the strip itself to flex through the opening.

REFERENCES:
patent: 1585934 (1926-05-01), Muir
patent: 2198319 (1940-04-01), Silverman
patent: 2655154 (1953-10-01), Richter
patent: 2730101 (1956-01-01), Hoffman
patent: 2767703 (1956-10-01), Nieburgs
patent: 3001522 (1962-09-01), Silverman
patent: 3055370 (1962-09-01), McKinney et al.
patent: 3831585 (1974-08-01), Brondy et al.
patent: 4517965 (1985-05-01), Ellison
patent: 4651753 (1987-03-01), Lifton
patent: 5071424 (1991-12-01), Reger
patent: 5112346 (1992-05-01), Hiltebrandt et al.

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