The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 04, 1989
Filed:
Aug. 26, 1987
Allan Northeved, Farum, DK;
Gert Toftkjaer, Naerum, DK;
Non-Invasive Therapeutic Techniques A/S, Virum, DK;
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.