Medical needle for use in ultrasound imaging and method of enhan

Details Medical needle for use in ultrasound imaging and method of enhan Medical needle for use in ultrasound imaging and method of enhan

1996-08-27

1998-03-17

Manuel, George

Surgery

Means for introducing or removing material from body for...

With means for cutting, scarifying, or vibrating tissue

A61M 3700

Patent

active

057281246

ABSTRACT:
A needle inserted into body tissue is rendered visible to a Doppler ultrasound imager by generating a longitudinal oscillation of the fluid column in the needle barrel by means of a transducer which is energised by a signal of frequency 100 Hz to 2 kHz, for example. An image of the needle tip is displayed on a screen.

REFERENCES:
patent: 3556079 (1971-01-01), Omizo
patent: 4411657 (1983-10-01), Galindo
patent: 4413993 (1983-11-01), Guttman
patent: 4790830 (1988-12-01), Hamacher
patent: 4838877 (1989-06-01), Massau
patent: 5046503 (1991-09-01), Schneiderman
patent: 5095910 (1992-03-01), Powers
patent: 5131394 (1992-07-01), Gehlbach
patent: 5209721 (1993-05-01), Wilk
Ultrasonics, vol. 26, No. 1, Jan. 26, 1988, Guilford, Surrey, Gr. Britain, pp. 27-30.

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