US 11,806,128 B2
Breath analysis device
Lubna M. Ahmad, Chandler, AZ (US); Zachary Smith, Phoenix, AZ (US); and Salman A. Ahmad, Chandler, AZ (US)
Assigned to Invoy Holdings Inc., Irvine, CA (US)
Filed by Invoy Holdings Inc., Irvine, CA (US)
Filed on Dec. 28, 2018, as Appl. No. 16/235,314.
Application 16/235,314 is a continuation of application No. 15/339,870, filed on Oct. 31, 2016, granted, now 10,226,201.
Claims priority of provisional application 62/396,240, filed on Sep. 19, 2016.
Claims priority of provisional application 62/247,778, filed on Oct. 29, 2015.
Prior Publication US 2019/0261891 A1, Aug. 29, 2019
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/097 (2006.01); A61B 5/08 (2006.01); A61B 5/087 (2006.01); A61B 10/00 (2006.01); A61B 5/00 (2006.01); A61B 5/091 (2006.01); A61B 5/01 (2006.01); A61B 5/083 (2006.01)
CPC A61B 5/097 (2013.01) [A61B 5/082 (2013.01); A61B 5/087 (2013.01); A61B 5/0823 (2013.01); A61B 5/0878 (2013.01); A61B 5/74 (2013.01); A61B 10/00 (2013.01); A61B 5/01 (2013.01); A61B 5/0803 (2013.01); A61B 5/0833 (2013.01); A61B 5/0836 (2013.01); A61B 5/0873 (2013.01); A61B 5/091 (2013.01); A61B 2010/0087 (2013.01); A61B 2562/0233 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A handheld breath analysis device, comprising:
a breath input port having a mouthpiece that enables a user to exhale a breath sample into the breath analysis device;
an analyte sensor capable of measuring a concentration of an analyte in breath;
a valve fluidly coupled to the breath input port, the valve switchable between a first position in which breath exhaled into the breath input port is vented from the breath analysis device without exposure to the analyte sensor, and a second position in which breath exhaled into the breath input port is routed to the analyte sensor;
a pressure sensor configured to detect an initiation of exhalation into the breath input port; and
a controller configured to control the valve during exhalation to cause a first portion of the exhaled breath sample to be vented from the breath analysis device and to cause a second portion of the exhaled breath sample to be routed to the analyte sensor, the controller configured to control a timing with which the valve is switched from the first position to the second position based at least partly on (1) a measurement of an amount of time that has transpired since initiation of exhalation is detected using the pressure sensor, and (2) data regarding at least one characteristic of the user.