Ultrasonic treatment of pathological tissue

Details Ultrasonic treatment of pathological tissue Ultrasonic treatment of pathological tissue

1991-09-20

1993-05-11

Cohen, Lee S.

Surgery

Truss

Perineal

128 24EL, A61H 2300

Patent

active

052092216

ABSTRACT:
A device for generating sonic signal forms for limiting, preventing or regressing the growth of pathological tissue comprises an ultrasonic transmission system for transmitting sound waves, focussed on the tissue to be treated, by way of a coupling medium. An ultrasonic signal produced at the focus of the system comprises brief pulses having at least one rarefaction phase with a negative sonic pressure amplitude with a value greater than 2.times.10.sup.5 Pa. The ultrasonic signal is radiated with a carrier frequency exceeding 20 kHz, a sonic pulse duration T of less than 100 .mu.s and a pulse recurrence rate of less than 1/(5T). The device produces controlled cavitation in the tissue to be treated.

REFERENCES:
patent: 3237623 (1966-03-01), Gordon
patent: 3499437 (1970-03-01), Balamuth
patent: 3526219 (1970-09-01), Balamuth
patent: 3589363 (1971-06-01), Banko
patent: 3735755 (1973-05-01), Eggleton et al.
patent: 3941122 (1976-03-01), Jones
patent: 4315514 (1982-02-01), Drewes et al.
patent: 4618796 (1986-10-01), Riedlinger
patent: 4622972 (1986-11-01), Giebeler, Jr.
patent: 4664111 (1987-05-01), Reichenberger
patent: 4671254 (1987-06-01), Fair
patent: 4674505 (1987-06-01), Pauli et al.
patent: 4696425 (1987-09-01), Landes
patent: 4721106 (1988-01-01), Kurtze et al.
patent: 4819621 (1989-04-01), Ueberle et al.
patent: 4827911 (1989-05-01), Broadwin et al.
patent: 4858597 (1989-08-01), Kurtze et al.
patent: 5054470 (1991-10-01), Fry et al.
F. J. Fry, "Precision High Intensity Focusing Ultrasonic Machines for Surgery," Am. J. Physical Med., vol. 37, No. 3, p. 152 (Jun. 1958).
L. D. Rosenberg, "La Generation et l'Etude des Vibrations Ultra-Sonores de Tres Grande Intensite," Acustica, vol. 12, p. 40 (1962).
P. P. Lele, "Production of Deep Focal Lesions by Focused Ultrasound--Current Status," Ultrasonics, Apr. 1967, p. 105.
L. R. Gavrilov, N. P. Narbut and F. E. Fridman, "Use of focused ultrasound to accelerate the `maturing` of a cataract," Sov. Phys. Acoust., vol. 20, No. 3, p. 229 (Nov.-Dec. 1974).
D. J. Coleman, F. L. Lizzi, and F. A. Jakobiec, "Therapeutic Ultrasound in the Production of Ocular Lesions," Am. J. Ophth., 86:185, 1978.
D. J. Coleman, F. L. Lizzi, A. A. M. El-Mofty, J. Driller, and L. A. Franzen, "Ultrasonically Accelerated Resorption of Vitreous Membranes," Am. J. Ophth., 89:490 1980.
D. J. Coleman, F. L. Lizzi, S. Chang, and J. Driller, "Applications of Therapeutic Ultrasound in Ophthalmology," Prog. in Med. Ultrasound, vol. 2, 1981, p. 263.
F. L. Lizzi, J. Driller, and M. Ostromogilsky, "Thermal Model for Ultrasonic Treatment of Glaucoma," Ultrasound in Med. & Biol., vol. 10, No. 3, p. 289 (1984).
Brendel et al., "Effect of Shock Waves on the Microvasculature", Prog. Appl. Microcirc., vol. 12, pp. 41-50 (1987).
Wilmer et al., "Effeckt von Stosswellen auf Tomorzellen in Suspension," 64th Convention, Union of Baravian Surgeons (Jul. 1987).
Eugen Skudrzyk, The Foundations of Acoustics, pp. 295-296, Springer-Verlag, Wien-New York (1971).
Heinrich Kuttruff, Room Acoustics, p. 22, Applied Science Publishers Ltd., London (1973).

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