Reciprocation pump and a dialysis apparatus equipped with the reciprocation pump
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May 24, 2012
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Nov 24, 2009
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Abstract
A reciprocation pump has a supply liquid-side sub-pumping chamber and a waste liquid side sub-pumping chamber for containing and sending out liquid adapted to communicate with the supply liquid-side pumping chamber and with the waste liquid-side pumping chamber, respectively. The supply liquid-side sub-pumping chamber and the waste liquid-side sub-pumping chamber are interlocked with a reciprocation mechanism to vary their volume reversely to that of the volume variation of the supply liquid-side pumping chamber and the waste liquid-side pumping chamber, respectively. The reciprocating motion of the reciprocation mechanism enables the liquid to be supplied to the objective apparatus through the supply liquid-side pumping chamber and the supply liquid-side sub-pumping chamber. Also, it enables the waste liquid from the objective apparatus to be discharged to the outside through the waste liquid-side pumping chamber and the waste liquid-side sub-pumping chamber.
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