Magnetically actuated positive displacement pump

Details Magnetically actuated positive displacement pump Magnetically actuated positive displacement pump

A - Human Necessities

61

M

3/115

A61M 1/10 (2006.01) B29C 33/40 (2006.01) F04B 43/04 (2006.01) H01F 7/16 (2006.01)

Patent

CA 2008163

ABSTRACT A positive displacement pump is provided which is especially suited to be used as a left ventricle assist device (LVAD). The pump is electromagnetically actuated. An electromagnet produces a pulse which repels a magnet mounted in a diaphragm which forms one wall of a pumping chamber. The pumping chamber thereby constricts and fluid is expelled. The electromagnet has a reverse taper core and core cup magnet which produce a bipolar field effect upon a diaphragm magnet to cause the return of the diaphragm to its starting position, without the application of external power.

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