X-ray sighting for aiming lithotripter

US5070861A · kind A · utility

Assignee

• Dornier Medizintechnik GmbH · DE

Inventors

• Wolfram Einars · Thun, CH
• Klaus Boehm · Munich, DE
• Bernhard Herrmann · Germering, DE
• Juergen Neumann · Gilching, DE

Key dates

• Filing date: Jun 11, 1990
• Grant date: Dec 10, 1991
• Expiry date: Jun 11, 2010

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/00902
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A lithotripter has a source for focussed shockwaves and an X-ray device which is mounted for relative displacement and positioning in relation to that source of shockwaves; an improvement includes a device for aiming and sighting in cooperation with the X-ray equipment that includes a carrier element defining a first pair of X-ray contrasting aligned reference points and two additional X-ray contrasting reference points, on a second line and intersecting the first line at a point of intersection at about 15 to 45 degrees; and that aiming and sighting device is mounted in relation to said source of focussed shockwaves such that the point of intersection coincide with a focal point of the shockwave source.