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Devices for continuous measurement of glucose in body fluid

  • US 8,050,729 B2
  • Filed: 06/28/2005
  • Issued: 11/01/2011
  • Est. Priority Date: 06/28/2004
  • Status: Expired due to Fees
First Claim
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1. A device for monitoring, continuously or repeatedly over a time period, a concentration of an analyte extracted from within a body, the device comprising:

  • (a) a fluid transfer system adapted to generate of flow of a fluid containing at least one analyte, the flow passing from the body to a sensing location; and

    (b) an optical sensor arrangement associated with said fluid transfer system and configured for determining the concentration of the at least one analyte at said sensing location,wherein said optical sensor arrangement includes an illumination source for illuminating at least a portion of the fluid along an illuminating optical path and a sensor element sensitive to at least one wavelength of radiation received from said portion of the fluid along a sensing optical path, and wherein said optical sensor arrangement is deployed such that at least one of said illuminating optical path and said sensing optical path does not pass through any surface which is wetted by the fluid.

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