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:
Jul. 29, 2003
Filed:
May. 08, 2001
R. Edward Winters, Andover, MA (US);
Other;
Abstract
A vascular system guidewire composed of a helically wound proximal spring segment attached to an additional helically wound distal spring segment of a more radiopaque material by winding the two segments together over a core. The helically wound springs may be tapered from the proximal to distal segment or straight, and a length of tubing is attached to the proximal end of the proximal spring segment with a ground distal tube segment to make for a flush fitting and a smooth continuous outside diameter of the guide wire. A core wire is attached to the end of the distal spring segment and moveable within the tube and proximal spring providing torque to the entire spring and movement of the core wire allows for varying the stiffness and support of the spring segment and for straightening the distal spring segment.