Patent ID: 6176581
Filing Date: 2001-01-23
Classification: A61B

Abstract:
A flash recovery timing apparatus comprising:a) a tubular instrument body having a bore, first and second end portions, and a wall;b) an aperture at the first body end portion;c) a lens mounted in the aperture;d) a display positioned within the bore at the focal length of the lens so that a patient can focus on the display by looking through the lens;e) a strobe positioned within the bore for generating a bright flash of light within the bore;f) a switch for activating the strobe;g) a timer for measuring a patient's response time of viewing the display after the strobe is activated;h) stop means for stopping the timer responsive to the patient's ability to see the display, evidencing flash recovery;i) stop including a voice activated timer that times the delay between the strobe flash and the patient's voice activation.