Therapy apparatus for carrying out treatment with focused ultrasound

Patent 5938608 Issued on August 17, 1999. Estimated Expiration Date:

September 2, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

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Inventors

Assignee

Siemens Aktiengesellschaft

Application

No. 894980 filed on 09/02/1997

US Classes:

600/439, With therapeutic device601/4Contact-free comminution of concretion

Examiners

Primary: Casler, Brian L.

Attorney, Agent or Firm

Hill & Simpson

Foreign Patent References

0 310 380 EP. 04/18/1989
0 367 117 EP. 05/18/1990
0 214 782 EP. 06/18/1992

International Class

A61B 017/22

Foreign Application Priority Data

1995-03-03 DE

Abstract

The invention is directed to a therapy apparatus for treatment with focussed ultrasound, comprising a cooled ultrasound source (1) implemented as phased array and a preceding acoustic lens (6). The ultrasound source (1) also comprises a base plate (3) arranged between the lens (6) and the ultrasound source (1) on whose side facing away from the lens (6) the ultrasound transducer elements (21 through 26) of the phased array are attached, whereby the base plate (3) is composed of a material with good thermal conductivity, whereby an ultrasound-conductive coolant that adjoins that side of the base plate (3) facing toward the lens (6) is situated between the lens (6) and the ultrasound source (1), whereby the base plate (3), at least in the region of the ultrasound transducer elements (21 through 26), comprises a thickness that is equal to an odd-numbered multiple of a quarter of the wavelength of the ultrasound in the material of the base plate (3).