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:
Mar. 06, 1990
Filed:
Apr. 15, 1988
Sylvester Oppelt, Bamberg, DE;
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Abstract
A shock wave generator suitable for use in an extracorporeal lithotripsy device to disintegrate calculi in a life form in vivo has a flat coil connectable to a high voltage supply, a membrane assembly disposed opposite the coil and a housing, closed on one side by the membrane, filled with a shock wave transmissive fluid. The membrane assembly has a carrier plate of electrically insulating material, and an electrically conductive section applied at one side of the carrier. The membrane assembly is connected to the housing at its edge. The material of the carrier is insensitive to cavitation, and the carrier is elastically yielding at least in the region of its edge. The electrically conductive section is electrically insulated from the terminals of the coil, and the membrane assembly is attached to the housing so that the electrically conductive section faces the flat coil.