US 10,376,210 B2
Mouth guard for determining physiological conditions of a subject and systems and methods for using same
Anthony J. Paris, Anchorage, AK (US); Jennifer M. Brock, Anchorage, AK (US); and John A. Lund, Bellingham, WA (US)
Assigned to UNIVERSITY OF ALASKA ANCHORAGE, Anchorage, AK (US)
Filed by University of Alaska Anchorage, Anchorage, AK (US)
Filed on Apr. 27, 2018, as Appl. No. 15/965,185.
Application 15/965,185 is a continuation of application No. 14/144,907, filed on Dec. 31, 2013, granted, now 9,955,918.
Claims priority of provisional application 61/827,996, filed on May 28, 2013.
Claims priority of provisional application 61/747,411, filed on Dec. 31, 2012.
Prior Publication US 2018/0242911 A1, Aug. 30, 2018
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/00 (2006.01); A61B 5/11 (2006.01); A61B 5/0205 (2006.01); A61B 5/01 (2006.01)
CPC A61B 5/6803 (2013.01) [A61B 5/01 (2013.01); A61B 5/02055 (2013.01); A61B 5/1121 (2013.01); A61B 5/1126 (2013.01); A61B 5/682 (2013.01); A61B 5/7282 (2013.01); A61B 5/742 (2013.01); A61B 5/746 (2013.01); A61B 5/7445 (2013.01); A61B 2503/10 (2013.01); A61B 2562/0219 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A measurement system for determining at least one physiological condition of a subject, the subject having a head, a mouth, and upper and lower teeth, the measurement system comprising:
a mouth guard comprising:
a U-shaped element having an outer side wall, an inner side wall, and at least one biting surface, the outer side wall, the inner side wall, and the at least one biting surface together defining at least one channel configured to receive at least one of the upper teeth and the lower teeth of the subject;
a plurality of electrodes operatively associated with the U-shaped element, the plurality of electrodes being spaced from one another about the U-shaped element and configured to remain in contact with tissue of the mouth of the subject when the at least one channel of the mouth guard receives at least one of the upper teeth and the lower teeth of the subject; and
processing circuitry in operative communication with the plurality of electrodes of the mouth guard,
wherein the processing circuitry is configured to measure an impedance between respective electrodes of the plurality of electrodes through tissue within the mouth of the subject, and
wherein the processing circuitry is configured to determine at least a respiratory rate of the subject based upon the measured impedance between respective electrodes of the plurality of electrodes, wherein the processing circuitry is configured to:
(a) record a series of time-separated measurements of impedance within the mouth of the subject; and
(b) calibrate and transform the series of time-separated measurements to determine the respiratory rate of the subject.