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:
Oct. 09, 2012
Filed:
Aug. 10, 2009
Peter Joseph Ayre, Crows Nest, AU;
Geoffrey Douglas Tansley, Mt. Colah, AU;
Peter Andrew Watterson, West Ryde, AU;
John Campbell Woodard, Thornleigh, AU;
Peter Joseph Ayre, Crows Nest, AU;
Geoffrey Douglas Tansley, Mt. Colah, AU;
Peter Andrew Watterson, West Ryde, AU;
John Campbell Woodard, Thornleigh, AU;
Thoratec Corporation, Pleasanton, CA (US);
Abstract
A pump assembly and estimation and control system therefor, the pump adapted for continuous flow pumping of blood. In a particular form, the pump is a centrifugal pump wherein the impeller is entirely sealed within the pump housing and is exclusively hydrodynamically suspended therein against movement in three translational and two rotational degrees of freedom as the impeller rotates within the fluid urged by electromagnetic means external to the pump cavity. Hydrodynamic suspension is assisted by the impeller having deformities therein such as blades with surfaces tapered from the leading edges to the trailing edges of bottom and top surfaces thereof.