Ultrasound generator

US4718421A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Arnim Rohwedder · Ergolding, DE
• Gerd Wessels · Erlangen, DE

Key dates

• Filing date: Jul 28, 1986
• Grant date: Jan 12, 1988
• Expiry date: Jul 28, 2006

Classification

• Technology area (CPC G): Physics
• CPC primary: G10K11/30
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

An ultrasound generator for acoustic irradiation of pathological changes of a human body comprises a planarly fashioned piezo-electric transducer which is acoustically coupled to an acoustical lens on one surface by a soft metal layer and is acoustically coupled on the opposite surface by a second soft metal layer to a dampening member. The soft metal layers act as both acoustically coupling layers and as electrodes for the piezo-electric transducer. The piezo-electric transducer can be formed of either a plurality of layers which are spaced apart by soft metal layers acting as electrodes, a single piezo-electric plate, or a plurality of plates arranged side by side in the same plane.