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:
Aug. 13, 1996
Filed:
Feb. 28, 1994
Mauricio L Fugoso, Chula Vista, CA (US);
Don H Tran, Westminster, CA (US);
Medtronic, Inc., Minneapolis, MN (US);
Abstract
A catheter with a guidewire shaft (1) with a proximal end which is free to move, the proximal end of the catheter having either a dual lumen (14) embodiment or a single lumen (6) embodiment. The dual lumen (14) embodiment has a stiffening wire lumen (17) through which a stiffening wire (12) extends and an inflation lumen (16) which is in fluid communication with the balloon (3). The single lumen (6) embodiment has a stiffening wire lumen (21) through which the stiffening wire (20) extends with the stiffening wire (20) defining an inflation lumen (22) which is in fluid communication with the balloon (3). A method of changing the stiffness of the distal end of a catheter is disclosed including, placing a stiffening wire (12) in an inflation lumen (5) or placing a stiffening wire (20) in a stiffening wire lumen (21) and advancing the stiffening wire up to the proximal end of the balloon (3) and stopping when the desired level of stiffness is achieved.