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Magnetically balanced finger-type peristaltic pump

  • US 8,535,025 B2
  • Filed: 05/10/2009
  • Issued: 09/17/2013
  • Est. Priority Date: 11/13/2006
  • Status: Active Grant
First Claim
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1. A peristaltic pump comprising:

  • a channel to receive a flexible tube;

    at least one effecter including a metal member and adapted to intermittently compress the tube within said channel, wherein compression of the tube produces a reactive force;

    at least one electrically triggerable actuator to apply a mechanical force on said effecter; and

    a balancing member to magnetically interact with said metal member in said at least one effecter so that a balancing force proportional to the mechanical force on said effecter is produced to substantially counter said reactive force of the tube.

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