The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 03, 2001

Filed:

Apr. 16, 1998
Applicant:
Inventors:

Lars Lidgren, Lund, SE;

Björn Strömqvist, Bjärred, SE;

Johan Severson, Lund, SE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61N 7/02 ;
U.S. Cl.
CPC ...
A61N 7/02 ;
Abstract

The present invention relates to a device for non-invasive treatment of biological tissue, whereby the treatment aim at changing or degenerating said tissue. This device has a treatment transducer (,) comprising at least one ultrasonic transducer (,and/or,) which is provided to treat intervertebral discs (,), preferably nucleus pulposus (,), by means of ultrasound, whereby the ultrasonic field of the ultrasonic transducer (,and/or,) is focused in said intervertebral disc (,), preferably in nucleus pulposus (,), for heating the tissue therein, to such temperatures that the tissue in the focal area (,) degenerates, whereby the pressure in the intervertebral disc (,) and thus, the pressure against the spinal cord (,) is reduced.


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