Surgical needle with stress-relocation means

Details Surgical needle with stress-relocation means Surgical needle with stress-relocation means

1993-09-27

1996-09-17

Pellegrino, Stephen C.

Surgery

Instruments

Cutting, puncturing or piercing

604264, A61B 1734

Patent

active

055564100

ABSTRACT:
A surgical needle including a cannula, hook-wire and reinforcement member for use in the manual location and marking of a lesion in a mass of soft tissue. The cannula rigidly supports the hook-wire during insertion into the soft tissue, and has a substantially cylindrical, hollow shaft and a cutting point located at an insertion end. The surgical needle further includes an anchor for restrainably locating the hook-wire proximate the lesion which is capable of springedly assuming a substantially acute angle relative to the remainder of the hook-wire. Reinforcement minimizes the potential for breakage of the hook-wire within the mass of soft tissue, after extension of the hook-wire beyond the insertion end of the cannula; in which the hook-wire is substantially D-shaped and closely approximates the diameter of the substantially cylindrical, hollow shaft; maximizing the structural size and integrity of the hook-wire to minimize the occurrence of breakage.

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Advertisement for Kopans Breast Localization Needles By: Cook, Date: Unknown.
Advertisement for Sadowsky Breast Marking System By: Ranfac Corp., Date: 1985.
Advertisement for PercuGuide By: E-Z-EM, Date: Unknown.

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