Patent · US Expired

Concrement locating apparatus utilizing X-rays and ultrasonic detectors

US4936291A · kind A · utility

16Cited by

3References

5Claims

0Family size

Assignee

Dornier System GmbH

Inventors

Bernd Forssmann · Friedrichshafen, DE
Hans-Heinrich Gerth · Meersburg, DE
Othmar Wess · Munich, DE

Key dates

Filing date	Jul 10, 1985
Grant date	Jun 26, 1990
Priority date	—
Expiry date	Jul 10, 2005

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B17/2256
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The present invention relates to the locating of concrements in the body of living beings for the purposes of determing where the focal point of a shock wave reflector has to be positioned so that it may comminute the concrement, and more particularly the invention relates to a system for locating concrements under utilization of X-rays in combination with an ultrasonic device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.