Magnetically balanced finger-type peristaltic pump
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United States of America Patent
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Feb 28, 2017
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app pub date -
Jun 10, 2015
filing date -
Nov 13, 2006
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Abstract
A peristaltic pump which includes: (a) a plurality of effecters, actuated in a periodic manner upon by obstructive forces of a flexible infusion tube so that flow of infusion fluid is provided along the infusion tube, the magnitude of the obstructive forces are dependent upon the displacement of the moving effecters, and (b) a plurality of balancing magnets providing balancing forces upon one or all of the moving effecters, the balancing forces at each point along the path of motion of the moving effecters being of approximately equal magnitude to that of the obstructive forces at the point, such that the parasitic output due to work performed against the obstructive forces is approximately zero and yield is maximized.
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