TeleHealth Module

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Revision as of 16:08, 31 October 2007 by DyD (talk | contribs) (Completely redid page to reflect current progress)
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The 10usd TeleHealth Module

  • This low cost, multifunction peripheral will provide a means through which the XO can relay valuable medical diagnostic data from the field to doctors many kilometers away.
  • It will compose of a three lead EKG providing valuable information about the heart's electrical status, enabling diagnosis of congenital defects and various arrhythmias.
  • It will also contain a multipurpose NIR diagnosis tool whose primary function is that of a pulse oximeter, providing information about the oxygen saturation of the blood.
    • See nirdiagnositics.com for other NIR functions

3 Lead EKG

  • Multiple Op-Amps pick up, amplify, and filter electrical impulses picked up by near-heart electrodes.
  • DyD/DyDisMe has schematics for an EKG using 714 style op-amps.

NIR Diagnosis Aid

  • Based on the principles of the differences in absorption of oxygenated and non oxygenated hemoglobin
  • 800-1000nm light from LEDs are often used in NIR tools
  • Red light is generated from similar LEDs.
    • 5-15c ea
  • Light is picked up by photodiodes, converted to current.
  • This current is amplified and converted to voltage by a [MAX4006|http://media.maxim-ic.com/images/qv/3760.gif] or equivalent chip
    • 1.275 usd

ADC/DAC

  • C8051F321 or equivalent chip
    • A/D 5x10b minimum
    • This specific chip provides A/D 13x10b
  • alternatively a USB micro-controller may communicate with dedicated ADC/DAC chips via PWM, to lower cost.