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:
Sep. 27, 1988
Filed:
Feb. 09, 1987
Mark A Rydell, Golden Valley, MN (US);
Schneider-Shiley (USA) Inc., Minneapolis, MN (US);
Abstract
A catheter for maintaining the patency of a blood vessel damaged during the course of angiography or angioplasty procedures comprising a toroidal coil whose adjacent turns are tightly wound and in contact with one another over a majority of the length thereof but which are separated from one another over a predetermined longitudinal dimension near the distal end thereof. The tightly wound touching coils may be covered with a Teflon coating and when the catheter must be used to maintain patency in a coronary artery, it is advanced along the guide wire of an angiography or angioplasty catheter until the open turn portion of the bail-out catheter bridges the site of the damaged vessel. After the angiographic or angioplasty catheter and its guide wire are removed, the bail-out catheter remains in position so that blood can flow through the open turns of that catheter and beyond until such time as surgical repair can be made.