Tubephragm pump

A tubephragm pump comprising:

• a tubephragm that has a suction port, a discharge port and a pump head portion arranged between the suction port and the discharge port, the suction port, the pump head portion and the discharge port being aligned in a first direction which is a longitudinal direction of the tubephragm, the pump head portion forming a pump chamber into which a transfer fluid is introduced through the suction port and from which the introduced transfer fluid is discharged through the discharge port to an outside;
• a driving head that holds the tubephragm, the driving head expanding and contracting the pump chamber by directly pressing and pulling the pump head portion in a second direction intersecting with the first direction;
• a driving unit that drives the driving head back and forth in the second direction to expand and contract the pump chamber;
• and
• a control unit that controls the driving unit, wherein
• a cross-sectional shape of the pump chamber intersecting with the first direction has a first length in a third direction intersecting with the first direction and the second direction, and has a second length in the second direction, the first length being longer than the second length, and
• the pump head portion has a width in the third direction wider than each width of the suction port and the discharge port in the third direction.

A tubephragm pump comprising:

• a tubephragm that has a suction port, a discharge port and a pump head portion arranged between the suction port and the discharge port, the suction port, the pump head portion and the discharge port being aligned in a first direction which is a longitudinal direction of the tubephragm, the pump head portion forming a pump chamber into which a transfer fluid is introduced through the suction port and from which the introduced transfer fluid is discharged through the discharge port to an outside;
• a driving head that holds the tubephragm, the driving head expanding and contracting the pump chamber by directly pressing and pulling the pump head portion in a second direction intersecting with the first direction,
• a driving unit that drives the driving head back and forth in the second direction;
• and
• a control unit that controls the driving unit, wherein
• a cross-sectional shape of the pump chamber intersecting with the first direction has a first length in a third direction intersecting with the first direction and the second direction, and has a second length in the second direction, the first length being longer than the second length, and
• a cross-sectional surface of the pump head portion intersecting with the first direction is larger than each cross-sectional surface of the suction port and the discharge port intersecting with the first direction.