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:
May. 26, 1992
Filed:
Aug. 28, 1990
Applicant:
Inventors:
Assignee:
Richard Wolf GmbH, Knittlingen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
606128 ; 51 5 / ; 604 22 ;
Abstract
A device is disclosed for the disintegration of concretions in body cavities. The device comprises at least one piezoelectric transducer element, for connection to a generator. The transducer element is connected between a reflector and a horn. Ultrasonic waves generated by the transducer element are directed by means of a sonotrode, to a concretion to be destroyed. At least the horn is provided with surface depressions which do not run parallel to its axis of symemtry, for the generation of transverse and rotational oscillations.