Apparatus for the contact-free disintegration of calculi

Details Apparatus for the contact-free disintegration of calculi Apparatus for the contact-free disintegration of calculi

1984-07-24

1987-06-23

Crowder, Clifford D.

Surgery

Truss

Pad

128 24A, A61B 1722

Patent

active

046745050

ABSTRACT:
The utilization of the apparatus fundamentally lies in the medical sector. An essentially planar shock wave is generated with the assistance of a shock wave tube via a magnetic dynamic effect. This shock wave is focussed by an acoustic convergent lens, whereby the calculus to be pulverized is placed at the focal point (F) of the convergent lens. In order to couple the shock wave to the patient, the space that the shock wave traverses is filled with a coupling agent, for example water. The shock wave tube, the convergent lens and a fine adjustment for the displacement of the convergent lens relative to the shock wave tube are attached to a mounting stand so as to be pivotable in all directions. This disintegration facility comprising a shock wave tube has high operating reliability with respect to high voltage, requires low maintenance, and has only negligible imaging or focussing errors resulting from the shock wave producing membrane and the convergent lens.

REFERENCES:
patent: 3168659 (1965-02-01), Bayre
patent: 3245251 (1966-04-01), Von Ardenne
patent: 3934460 (1976-01-01), Sherwin
patent: 3942531 (1976-03-01), Hoff
patent: 3958559 (1976-05-01), Glenn
patent: 3982223 (1976-09-01), Green
patent: 4001766 (1977-01-01), Hurwitz
patent: 4131025 (1978-12-01), Mezrich
patent: 4315514 (1982-02-01), Drewes et al.
patent: 4333347 (1982-06-01), Lang
patent: 4423637 (1984-01-01), Soloway
Szilard, A New Ultrasonic Lens, Nov. 1976, pp. 268-272.
Rozhdestrenskaya, An Ultrasonic Focusing Transducer, Mar. 1979, pp. 261-263.
Chaussy, Extracorporeal Shock Wave, 1980, Beruhrungsfreie Nierensteinzertrummerung durch extrakorporal erzengte, fokussierte.
Stasswellen, "Beitrage zur Urologie, vol. 2 (Karger, Basel, 1980), ISBN 3-8055-1901-X, Translation 1982, S. Karger AG, P.O. Box, CH-4009 Basel/Switzerland) ISBN 3-8055-3620-8.
Eisenmenger "Elektromagnetische Erzeugung Von Ebenen Druckstossen in Flusigkeiten" Akustische Beihefte, vol. 12 (1962) pp. 185-202.

Affiliated with

Also associated with

Rating

Apparatus for the contact-free disintegration of calculi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for the contact-free disintegration of calculi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for the contact-free disintegration of calculi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-715112