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Apparatus and method for measuring drop size in an intravenous drip chamber

  • US 6,562,012 B1
  • Filed: 11/20/2000
  • Issued: 05/13/2003
  • Est. Priority Date: 11/20/2000
  • Status: Expired due to Term
First Claim
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1. An apparatus for determining the volume of a fluid drop that moves through a predetermined path, comprising:

  • two plates forming a capacitor, the plates being separated by and positioned on either side of the predetermined path so that the fluid drop passes between the plates as it moves through the predetermined path thereby changing the capacitance of the capacitor;

    a volume determining system connected to the capacitor configured to measure the amount of change in capacitance of the capacitor as the fluid drop moves through the predetermined path between the two opposing plates and configured to determine the volume of the fluid drop based on the amount of change of capacitance caused by the fluid drop moving between the two opposing plates.

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