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:
Apr. 08, 2003
Filed:
Feb. 07, 2001
Richard M. DeMello, Acton, MA (US);
Radius Medical Technologies, Inc., Maynard, MA (US);
Abstract
A composite guidewire includes a solid central core of super elastic material and one or more core overlays of non-super elastic material. A coupling tube fits over the proximal end of the core, and a coil, which may be radiopaque, fits over the distal end of the core and attaches to a distal end of the coupling tube. A flat safety wire that is positioned between the distal portion of the coupling tube and the core also attaches to the distal end of the tube. The safety wire extends the length of the coil and attaches to both the distal and the proximal ends of the coil. The guidewire's proximal end may be a non-super elastic core extension shaped at its distal end to overlap and mechanically inter-lock with a proximal end of the core and the coil and safety wire may extend beyond the distal end of the core.