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:
Nov. 18, 1986
Filed:
Jun. 06, 1984
Applicant:
Inventors:
Bernd Forssmann, Friedrichshafen, DE;
Christian Chaussy, Germering, DE;
Assignee:
Dornier System GmbH, Friedrichshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128328 ;
Abstract
An apparatus for the comminution of concrements such as kidney stones, and including a source of shock waves partially surrounded by an ellipsoidal reflector, is improved in that the open end of the reflector for sound wave transmission is additionally defined by a plurality of sound attentuating rings diminishing in internal diameter with distance from the source of shock waves; additional features provide for an overall increase in specific weight of these rings; the transmission of x-rays through the equipment is separately controlled.