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:
May. 15, 2012
Filed:
Feb. 17, 2009
Mark E. Wendler, St. Louis Park, MN (US);
Ana R. Menk, Minneapolis, MN (US);
Eric R. Fox, Prior Lake, MN (US);
Ningze Sun, Shoreview, MN (US);
Timothy D. Groen, North Branch, MN (US);
Walt L. Carpenter, Minneapolis, MN (US);
Mark E. Wendler, St. Louis Park, MN (US);
Ana R. Menk, Minneapolis, MN (US);
Eric R. Fox, Prior Lake, MN (US);
Ningze Sun, Shoreview, MN (US);
Timothy D. Groen, North Branch, MN (US);
Walt L. Carpenter, Minneapolis, MN (US);
Medtronic, Inc., Minneapolis, MN (US);
Abstract
A cardiotomy and venous blood reservoir including a housing assembly, a downtube, and a bowl. The housing assembly forms a chamber. The downtube extends from an inlet port to a downstream end within the chamber. A diameter of the tube lumen increases to the downstream end. The bowl forms a floor surface shoulder, intermediate segment, and protrusion. The shoulder circumferentially surrounds, and is spatially above, the downstream end. The intermediate segment extends radially inwardly and downwardly from the shoulder to a bottom face. The protrusion extends radially inwardly and upwardly from the bottom face to a center that is aligned with the lumen and below the downstream end. The flared inner diameter of the lumen reduces fluid velocity as venous blood enters the reservoir. The bowl floor surface gently receives the incoming venous blood at the protrusion, and smoothly guides the blood flow.