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. 02, 1985
Filed:
Apr. 26, 1982
Dieter Hassler, Uttenreuth, DE;
Heinz Kresse, Uttenreuth, DE;
Helmut Reichenberger, Eckental, DE;
Georg Naser, Zirndorf, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
In exemplary embodiments, an ultrasonic transducer serves as vibration generator. It is an object of the disclosure to construct such an apparatus which, with the simplest technical construction, is functionally reliable and can be operated in a very adaptable manner and which is simultaneously especially productive with regard to the desired destruction effect. In accordance with the disclosure this object is achieved in that an ultrasonic transducer to be focused on the calculus serves as a direct acoustic irradiator for the calculus, which irradiator has a surface area such that the sound energy per square unit along the transmission path is sufficiently small so as to avoid tissue damage on the one hand, but is sufficiently great at the focus point that is suffices for the destruction of the calculus disposed at the focus, on the other hand.