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:
Oct. 24, 1995
Filed:
Jul. 01, 1994
James B Daigle, Worcester, MA (US);
Richard M DeMello, Acton, MA (US);
Bruce W Flight, Melrose, MA (US);
Boston Scientific Corp., Natick, MA (US);
Abstract
A guidewire adapted to be inserted into a vascular vessel or into a catheter that is to be inserted into a vascular vessel or the like. The guidewire comprises a coil of flexible radiotransparent wire having a proximal section and a distal section. The proximal section is formed of a coil of wire having abutting turns and distal section is formed by the same coil of wire with the turns of wire being spaced from each other. A layer of radiopaque material of predetermined length is disposed in a predetermined location on the distal section, the interior of the layer being interstitially disposed within the outer surface of the coil. A hemispherical tip is disposed at the distal end of the distal section. A small braze is made at the juncture between the proximal section and the distal section to prevent spreading of the coils from the abutting relationship in the proximal end of said guidewire.