Nondestructive fluid transfer device
US7691046B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 10, 2006 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Aug 1, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/8243
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.