Needle-like ultrasonic probe for ultrasonic diagnosis apparatus,

Details Needle-like ultrasonic probe for ultrasonic diagnosis apparatus, Needle-like ultrasonic probe for ultrasonic diagnosis apparatus,

1996-06-28

1998-11-03

Manuel, George

Surgery

Truss

Pad

12866205, A61B 800

Patent

active

058294392

ABSTRACT:
A needle-like ultrasonic probe includes an inner needle received in a hollow, tubular outer needle for rotation about an axis thereof. The inner needle has a pointed distal end, and a notch is formed in an outer peripheral surface of that portion of the inner needle which is located adjacent to the distal end thereof. At least one ultrasonic transducer, as well as an acoustic lens for converging an ultrasonic wave, produced by the ultrasonic transducer, onto a point near to the outer peripheral surface of the inner needle, is provided in the notch. A filler, having an outer surface conforming to the outer peripheral surface of the inner needle, is fitted in the notch. With this construction, after the inner needle is smoothly stuck into a living tissue, even if it is rotated and axially moved, the living tissue is less affected or damaged by the inner needle.

REFERENCES:
patent: 4911172 (1990-03-01), Bui et al.
patent: 5167234 (1992-12-01), Watanabe et al.
patent: 5199437 (1993-04-01), Langberg
patent: 5209721 (1993-05-01), Wilk
patent: 5402792 (1995-04-01), Kimura

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