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Peristaltic pump

  • US 6,102,678 A
  • Filed: 04/03/1998
  • Issued: 08/15/2000
  • Est. Priority Date: 04/04/1997
  • Status: Expired due to Term
First Claim
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1. A peristaltic pump for medical applications, comprising:

  • a pump barrel having an interior bearing surface in the form of a circular arc;

    at least one compressible tube capable of holding a liquid to be pumped and arranged in a radial pattern along the length of the bearing surface;

    a rotor comprising a rotary chassis having rollers adapted to roll against the tube, whereby, the tube is compressed against the bearing surface; and

    , piezoelectric drive means to turn the rotor.

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