Micropump

Details Micropump Micropump

2008-08-14

2011-10-25

Kramer, Devon C (Department: 3746)

Pumps

Expansible chamber type

Elongated flexible chamber wall progressively deformed

Reexamination Certificate

active

08043077

ABSTRACT:
A micropump that includes: a tube frame including an elastic tube, and a tube guide groove; a cam drive wheel which moves in response to a motor that can be rotated in forward and reverse directions; a first cam is provided with a finger depression section at a circumferential portion thereof; a second cam is provided with a finger depression section at a circumferential portion thereof; and a plurality of fingers provided between the tube and the respective finger depression sections of the first and second cams. The micropump can be in a first state of continuously feeding a fluid by when the first cam is rotated in the forward direction, the first cam pushing and rotating the second cam in the same direction, a second state of rotating only the first cam in the reverse direction, and a third state of stopping the first cam from rotating.

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