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Micro paddle wheel pump for precise pumping, mixing, dispensing, and valving of blood and reagents

  • US 20030072647A1
  • Filed: 10/11/2001
  • Published: 04/17/2003
  • Est. Priority Date: 10/11/2001
  • Status: Active Grant
First Claim
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1. A micro pumping device for transporting small volumes of biological fluid comprising:

  • a paddle wheel, said paddle wheel comprising a magnetic core and a hydrophobic surface. a conduit, said conduit comprising a hydrophilic interior surface and a paddle wheel chamber having similar dimensions to said paddle wheel, said chamber housing said paddle wheel and allowing said paddle wheel to rotate freely; and

    an electromagnet located near said conduit, said electromagnet providing an alternating inductive magnetic field to cause the rotation of said magnetic core.

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