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A finger plethysmograph to measure blood resistivity

Project Overview

Our goal is to design a finger plethysmograph to measure blood resistivity. Impedance plethysmography may be used to measure arterial volume change that occurs with propagation of the blood pressure pulse in a limb segment. For this measurement, we assume a constant value of blood resistivity. However, blood resistivity may change under both physiological and pathological conditions. Use of an impedance plethysmograph on a finger immersed in a salt-filled beaker may yield a simple method for determining blood resistivity. This may develop into a method that diabetics can use to measure glucose level noninvasively.

Contact Information

Team Members

  • Tim Balgemann - Team Leader
  • Lucas Vitzthum - Communicator
  • Nick Harrison - BSAC
  • Tyler Lark - BWIG

Advisor and Client

  • Dr. Tom Yen - Advisor
  • Prof. John Webster - Client

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