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Reflective non-contact ocular pulse analyzer for clinical diagnosis of eye and cerebrovascular disease

  • US 20080242965A1
  • Filed: 03/21/2008
  • Published: 10/02/2008
  • Est. Priority Date: 03/26/2007
  • Status: Active Grant
First Claim
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1. An ocular pulse analyzer for measuring an eye intraocular pressure and blood flow comprising:

  • a an optic head for measuring the displacement of the eye front surface during the ocular pulse comprising;

    1 a beam forming module comprising a laser diode, a beam expander with an internal spatial filter, a shaper collimator and dump, and a turning mirror means for forming a small diameter low divergence light beam probe that strikes the apex of the cornea at a large incidence and is reflected2 a reflected beam line module comprising a turning mirror, beam quadrature error detector, ccd camera array means for detecting beam errors and forming a pixelated image of the reflected beam spot width3 a patient and operator module comprising an optical eye fixation target, and a ccd camera video port means for eye fixation and aligning and observing the measurementb a digital control and data acquisition module comprising blood pressure sensors, digital and analog converters, a computer, display, and real time control panel means for controlling the optical head and acquiring the ocular pulse data.2

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