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Method and apparatus for non-invasive measurement of blood analytes

  • US 20060063992A1
  • Filed: 09/14/2004
  • Published: 03/23/2006
  • Est. Priority Date: 08/09/2004
  • Status: Abandoned Application
First Claim
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1. An apparatus to facilitate the in vivo measurement of analytes in the blood comprising:

  • a chamber having an aperture formed therein, said chamber including an optical element for transmitting measurement light, said chamber holding a liquid which is substantially transparent at the wavelength of the measurement light;

    a pump fluidly connected to the chamber and operative to pump fluid into and out of the chamber;

    a control system operatively connected to the pump for varying the fluid in the chamber, whereby in operation, the user places a body part over the aperture in manner to substantially seal the aperture and with the control system varying the fluid in the chamber to vary the pressure therein so that the amount of blood in the body part that is exposed to the measurement radiation can be varied.

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