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Control unit, tube unit, and micropump

  • US 9,631,615 B2
  • Filed: 06/27/2013
  • Issued: 04/25/2017
  • Est. Priority Date: 09/29/2008
  • Status: Expired due to Fees
First Claim
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1. A micropump comprising:

  • a tube unit including a tube and a plurality of fingers;

    a control unit including a cam and a control circuit, the tube unit being attachable to and detachable from the control unit;

    wherein the tube unit has a power source which supplies power to the control circuit, and the tube deforms via the plurality of fingers in accordance with the rotation of the cam driven by the control circuit; and

    wherein a plurality of convexities are formed on the cam that form a plurality of finger pressing surfaces that actuate the plurality of fingers;

    the convexities each being separated by a planar surface that extends radially outward from a concentric surface formed on a circle of the cam, and each convexity including a finger pressing surface that includes a finger pressing slope surface and a surface that is arc-shaped, the surface that is arc-shaped being part of the concentric surface and provided in a position that does not press the fingers.

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