Monitoring device, method and system

• US 7,431,696 B1
• Filed: 12/10/2007
• Issued: 10/07/2008
• Est. Priority Date: 06/13/2007
• Status: Expired due to Fees

• Current Assignee: Impact Sports Technologies Incorporated
• Original Assignee: Impact Sports Technologies Incorporated
• Inventors: Lui, Steve, Rulkov, Nikolai, Elhag, Sammy I., Hunt, Mark, Brady, Donald
• Primary Examiner(s): Nasser, Robert L
• Application Number:
  US11/953,073
• Time in Patent Office: 302 Days
• Field of Search: None
• US Class Current: 600/300
• CPC Class Codes: A61B 5/02055 Simultaneously evaluating both cardiovascular condition and temperature
• CPC Class Codes: A61B 5/11 Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb for measuring pulse A61B5/02 ;A61B5/1038 takes precedence; motion detection to correct for motion artifacts in physiological signals A61B5/721
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/222 combined with detection or measurement of physiological parameters, e.g. heart rate
• CPC Class Codes: A61B 5/681 Wristwatch-type devices

Abstract

A monitoring device (20) for monitoring the vital signs of a user is disclosed herein. The monitoring device (20) is preferably an article (25) having an optical sensor (30) and a circuitry assembly (35). The optical sensor (30) preferably comprises a photodetector (130) and a plurality of light emitting diodes (135). The monitoring device (20) preferably provides for the display of the following information about the user: pulse rate; blood oxygenation levels; calories expended by the user of a pre-set time period; target zones of activity; time; or distance traveled.

Claims

1. A method of monitoring a user'"'"'s vital signs, the method comprising:

deactivating a processor for a deactivation period of 128 to 640 microseconds;

activating an optical sensor during the deactivation period to generate a signal corresponding to the flow of blood through at least one artery of the user, the optical sensor comprising a photodetector and a plurality of light-emitting diodes;

reactivating the processor to process the signal to obtain an average pulse value of a first set of time periods;

processing the signal to obtain an average pulse value of a second set of time periods, the second set of time periods less than the first set of time periods;

subtracting the average pulse value of the second set of time periods from the average pulse value of the first set of time periods to generate a first filtered pulse data value;

processing the first filtered pulse data value to obtain a first heart rate value;

using the first heart rate value to filter the subsequent average pulse values generated from the digital signal to obtain a real-time heart rate value of the user wherein the real-time heart rate value is based on 60 to 180 sample readings and each of the sample readings is based on 4 to 15 sub-sample readings; and

processing the real-time heart rate data of the user for analysis of real-time calories expended by the user and for real-time display of a plurality of the user'"'"'s vital signs.