Cutting tip for biopsy needle

Details Cutting tip for biopsy needle Cutting tip for biopsy needle

1994-03-14

1995-12-26

Hindenburg, Max

Surgery

Truss

Pad

A61B 1000

Patent

active

054778620

ABSTRACT:
An improved, cone shaped puncturing/cutting tip is provided for the inner cannula or alternative, the stylet, of a biopsy needle. The cone shaped tip is defined by a frontal vertex co-incident with the center of the cannula or the stylet and a circular base of diameter about equal that of the cannula or stylet. The surface of the cone shaped tip end includes at least three circumferentially spaced, longitudinally extending cutting vane edges extending from the vertex to the base and is hollowed between adjacent vane cutting edges whereby cutting penetration of said tip to the site is enhanced without significant vertex deflection of the point during penetration.

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Becton et al. "Bigsy Needles & Instruments For Advanced Techniques" Oct. 1974.

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