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.
Patent No.:
Date of Patent:
Jun. 29, 1999
Filed:
May. 05, 1997
Michael S Noone, Londonderry, NH (US);
Mark A Johanson, Littleton, MA (US);
Medtronic, Inc., Minneapolis, MN (US);
Abstract
A guidewire for use in a catheter comprising a unitary core wire, a distal tip and an elongate tube. The core wire has a body segment and a transition segment, the body segment being of substantially uniform outer diameter with a distal end serially disposed proximal to the transition segment proximal end, the transition segment being more flexible than the body segment, and progressively reduced in cross-section from the body segment. The smoothly rounded distal tip is affixed to the distal end of the transition segment. The elongate tube defines a tube lumen, the core wire transition segment extends longitudinally through the tube, the tube having a uniform outer diameter equal to the outer diameter of the body segment, the proximal end of the tube being affixed to the proximal end of the transition segment, the distal end of the tube being affixed to the distal tip. The tube may be formed of a super-elastic metallic member or formed from a synthetic resin. The tube wall thickness is preferably between 0.002 inches and 0.005 inches.