Patent · US Expired

Extracorporeal lithotripsy apparatus for the disintegration of calculi having an unattenuated locating field

US5065762A · kind A · utility

15Cited by

6References

4Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Helmut Ifflaender · Spardorf, DE
Eike Matura · Erlangen, DE
Walter Polster · Spardorf, DE
Manfred Rattner · Großenseebach, DE

Key dates

Filing date	May 23, 1990
Grant date	Nov 19, 1991
Priority date	—
Expiry date	May 23, 2010

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B2017/00902
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A shock wave source of the type suitable for treating calculi in the body of a patient has a closed space filled out by a coupling fluid, as well as a hollow-cylindrical, air-filled space, centrally located in the shock wave head, which does not attenuate x-rays. The centrally located space allows for acceptance of an ultrasound locating system. It is covered on the application side by a flexible foil, providing for a shock wave head which is free from contamination of particles from the opening of the above mentioned space to the application surface of the patient.

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