Surgery – Truss – Pad
Patent
1987-08-26
1989-07-04
Smith, Ruth S.
Surgery
Truss
Pad
128 24A, 128328, A61B 800, A61B 1722
Patent
active
048440817
ABSTRACT:
A device for disintegrating kidney stones or gallstones by means of a focusing chamber being part of a rotation ellipsoid and comprising in one focal point a spark gap producing shock waves. Means fixing the device to the skin of the patient are provided in connection with the focusing chamber. A movable rubber sleeve or bellows may be provided in connection with the fixing means, said sleeve or bellows being glued onto the skin of the patient. As an alternative circumferential suction chambers may be provided along the rim of the sleeve, or the entire device may be shaped as a suction cup. An ultrasonic transducer is situated within the focusing chamber, said ultrasonic transducer optionally being situated on a cone-shaped body in turn situated on a pivotable bar within the focusing chamber. In this manner it is possible to localize a stone by means of an ultrasonic scanner without the ultrasonic transducer in question being damaged by shock waves.
REFERENCES:
patent: 4541434 (1985-09-01), Okada
patent: 4610249 (1986-09-01), Makorski et al.
patent: 4620545 (1986-11-01), Shene et al.
patent: 4669483 (1987-06-01), Hepp et al.
Northeved Allan
Toftkjaer Gert
Non-Invasive Therapeutic Techniques A/S
Smith Ruth S.
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