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Low power electromagnetic pump

  • US 20070269322A1
  • Filed: 05/19/2006
  • Published: 11/22/2007
  • Est. Priority Date: 05/19/2006
  • Status: Abandoned Application
First Claim
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1. In an electromagnetic pump for delivering an infusion medium to a patient, wherein the pump includes an inlet, an outlet, an electromagnet, and an armature positioned for magnetic attraction by said electromagnet to cause movement of said armature to force fluid from said inlet out through said outlet, the electromagnet comprising:

  • a) a core of magnetic material in said electromagnet, said core having a core diameter,b) a coil surrounding said core,c) a case of magnetic material surrounding said coil and said core, said case being spaced in insulated relation to said coil, said case having a case diameter and a case length, andd) a ratio of said case diameter to said core diameter being in a range from about 2.5 to about 7.

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