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:
May. 13, 2003

Filed:

Apr. 09, 2001
Applicant:
Inventors:

Krishan Shah, Mississauga, CA;

Frank Headley Baylis, Beaconsfield, CA;

Mark Leung, Markham, CA;

Assignee:

Baylis Medical Co., Montreal, CA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 1/818 ;
U.S. Cl.
CPC ...
A61B 1/818 ;
Abstract

An intradiscal lesioning device for percutaneous treatment of a patient's intervertebral disc. An elongate introducer having a longitudinal hollow bore is surgically inserted from the patient's skin to extend through the annulus fibrosus thereby providing external surgical access to the nucleus pulposus through the introducer bore. An elongate probe slides through and flexibly conforms to the bore when longitudinally inserted through the bore of the introducer. The distal portion of the probe is capable of resiliently conforming to the bore in a longitudinally slidably confined configuration and resiliently rebounding to a deployed configuration when released within the nucleus pulposus. The distal portion houses lesioning devices for emitting energy toward the inner wall of the annulus fibrosus when the distal portion is in the deployed configuration. Examples of suitable energy sources include: thermal energy; radio frequency electric current; microwave emission; ultrasound emission; radioactive emission; and optical emission.


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