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Device for monitoring body functions

  • US 7,654,671 B2
  • Filed: 01/27/2006
  • Issued: 02/02/2010
  • Est. Priority Date: 01/27/2005
  • Status: Active Grant
First Claim
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1. A device for use in non-invasive monitoring of a human or animal subject'"'"'s bodily functions in vivo, having a first optical system which comprises:

  • a) a light source to direct light into an eye of the human or animal subject, the light source directing the light in one or more pulses; and

    b) a light receiver to receive light returning from the eye as a result of illumination by the light from the light source, the light receiver or a processor coupled to the light receiver arranged to record at least one of a frequency or intensity of the returning light at a selected timing relative to the one or more pulses of light from the light source, said timing selected so as to reduce a proportion of light reflected from at least one of a cornea or iris or lens of the eye, wherein a focal point of the one or more pulses of light from the light source lies in a plane that is at least substantially coincident with a plane of the pupil of the eye.

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