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:
Jul. 06, 2004
Filed:
Nov. 30, 2000
Applicant:
Inventor:
Ronald K. Grooters, West Des Moines, IA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 5/00 ; A61M 2/500 ;
U.S. Cl.
CPC ...
A61M 5/00 ; A61M 2/500 ;
Abstract
An improved aortic cannula is provided for use in heart by-pass surgery. The cannula includes an elongated tube with a terminal end. The terminal end has a ramped surface leading to the discharge opening. The ramped surface terminates in a spoon-shaped lip. The spoon-shaped lip directs blood out of the cannula opening toward the ascending aorta or aortic arch in a U-shaped dispersion so as to preclude impact on the aortic wall. A bead adjacent the opening facilitates dispersion of the exiting blood. The opening has an upper edge with an inverted V-shaped contour which also facilitates dispersion of the blood.