Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Reexamination Certificate
2006-08-19
2009-06-02
Stultz, Jessica T (Department: 2873)
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
C351S200000, C351S220000, C351S221000
Reexamination Certificate
active
07540613
ABSTRACT:
A battery powered, hand held device to determine of there is significant retinal ischemia in the eye of a patient. The device detects the consequences of impaired blood flow in the eye of the patient and has a light source for emitting a light and a diffuser or diffuse spheroidal reflector that redirects the light from the light source toward the patient's eye. A set of electrodes contact the patients skin proximate to the eye and receives an electrical signal representing the eye's electrical response to the light stimulus. A microcontroller interprets the electrical signal sensed by the electrodes by using an algorithm to determine the degree of retinal ischemia of the patient. In one embodiment, there is a control that establishes the intensity of the light stimulus by measuring and using the area of the pupil.
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Ephios AB, “Global Scan”, Weblabs Marketing Solutions, weblabs.se.
Andrews & Kurth LLP
Sahle Mahidere S
Stultz Jessica T
Wooden Sean
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