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. 10, 1991
Filed:
Apr. 26, 1989
Applicant:
Inventor:
Gary Schneiderman, Walnut Creek, CA (US);
Assignee:
Advanced Cardiovascular Systems, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ; A61B / ; A61M / ;
U.S. Cl.
CPC ...
128692 ; 606194 ; 12866206 ; 604 96 ; 604102 ;
Abstract
An angioplasty autoperfusion catheter flow measurement apparatus includes a balloon catheter having an autoperfusion lumen incorporated therein which is acoustically in communication with a flow velocity measuring system. The flow measuring system may include a Doppler transducer, usually a section of piezoelectric material, located adjacent to the autoperfusion lumen and connected to an external activating and measuring device that indicates the velocity of the blood flowing through the autoperfusion lumen at a remote location outside the patient's body.