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:
Apr. 06, 2010
Filed:
Jul. 10, 2006
Paul J. Sullivan, Plymouth, MN (US);
Paul J. Sullivan, Plymouth, MN (US);
PumpWorks, Inc., Minneapolis, MN (US);
Abstract
Fluid transfer device configured as a vacuum pump particularly suited for nondestructive transfer of fluids, including blood and blood constituents. Fluid transfer device used for assisting in the pumping of blood through a patient's heart for reducing the load on the heart, reducing forces and blood pressure on the inner walls of the heart is reduced. Examples are aortic assist device, a ventricular assist device, or artificial heart. Industrial applications include the pumping of fluids, including destructible fluids such as foodstuff with or without food constituents of various sizes within the foodstuff. Food and other fluids may be stored until they are dispensed. By use of a vacuum, the device is operated at no more than atmospheric pressure. A pre-charged pressure tank may be used, such as where fluid pressure of the pumped fluid, including backpressure of body fluids, where pressure greater than atmospheric is required to expel pumped fluid.