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:
May. 07, 1996
Filed:
Feb. 28, 1995
Jerald A Johansen, Canyon Lake, CA (US);
Medtronic, Inc., Minneapolis, MN (US);
Abstract
A guidewire extension assembly for use in angioplasty to facilitate exchanging a balloon dilitation catheter that includes a guidewire and an extension wire that are releasably connected thus avoiding the need to use a separated exchange wire. The proximal end of the guidewire and the distal end of the extension wire either have one or more slots or one or more keys and when joined together cream a guidewire extension system utilizing a keyed joint connection. The key, when inserted in the slot, is held in place by frictional engagement to connect the distal end of the extension wire to the proximal end of the guidewire. The keyed connection between the guidewire and the extension wire makes it simple to attach the wires together, transfers torsional forces between the wires without the fear of the wires coming apart or unscrewing and is readily disconnected/reconnected when required.