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:
Mar. 22, 1994
Filed:
Mar. 13, 1992
Applicant:
Inventors:
Paul A Gurbel, Baltimore, MD (US);
R David Anderson, Baltimore, MD (US);
Assignee:
Medtronic, Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
604 96 ; 604103 ; 606194 ;
Abstract
An autoperfusion dilatation catheter useful in angioplasty comprises a conventional catheter shaft and an inflatable balloon. The catheter is designed such that the balloon, when inflated, has an outer surface relief-structure whereby when this outer surface is fully inflated and exerts pressure on the inner surface of a blood vessel, blood continues to flow between the outer surface of the balloon and the blood vessel surface. Preferably, the relief structure is a channel formed in the outer surface of the balloon by the pressure of a band attached to the catheter and which presses against the outer surface of the balloon.