US 11,992,619 B2
Ventilator with integrated cough-assist
Douglas F. DeVries, Kenmore, WA (US); David H. Good, Bothell, WA (US); Shan E. Gaw, Seattle, WA (US); and Joseph Cipollone, Mission Viejo, CA (US)
Assigned to Ventec Life Systems, Inc., Bothell, WA (US)
Filed by Ventec Life Systems, Inc., Bothell, WA (US)
Filed on Apr. 4, 2022, as Appl. No. 17/657,925.
Application 17/657,925 is a continuation of application No. 17/331,625, filed on May 26, 2021, granted, now 11,291,791.
Application 17/331,625 is a continuation of application No. 16/689,041, filed on Nov. 19, 2019, granted, now 11,185,655, issued on Nov. 30, 2021.
Application 16/689,041 is a continuation of application No. 14/819,165, filed on Aug. 5, 2015, granted, now 10,518,059, issued on Dec. 31, 2019.
Application 14/819,165 is a continuation of application No. 14/803,799, filed on Jul. 20, 2015, granted, now 10,758,699, issued on Sep. 1, 2020.
Application 14/803,799 is a continuation of application No. 14/749,397, filed on Jun. 24, 2015, granted, now 9,956,371, issued on May 1, 2018.
Application 14/749,397 is a continuation of application No. 14/695,708, filed on Apr. 24, 2015, granted, now 10,046,134, issued on Aug. 14, 2018.
Application 14/695,708 is a continuation of application No. 14/667,480, filed on Mar. 24, 2015, granted, now 10,315,002, issued on Jun. 11, 2019.
Application 14/667,480 is a continuation of application No. 14/667,451, filed on Mar. 24, 2015, granted, now 10,245,406, issued on Apr. 2, 2019.
Prior Publication US 2023/0020943 A1, Jan. 19, 2023
Int. Cl. B01D 53/02 (2006.01); A61M 16/00 (2006.01); A61M 16/08 (2006.01); A61M 16/10 (2006.01); A61M 16/20 (2006.01); B01D 53/047 (2006.01); B01D 53/053 (2006.01)
CPC A61M 16/101 (2014.02) [A61M 16/0009 (2014.02); A61M 16/0051 (2013.01); A61M 16/0057 (2013.01); A61M 16/0063 (2014.02); A61M 16/0069 (2014.02); A61M 16/024 (2017.08); A61M 16/0808 (2013.01); A61M 16/0816 (2013.01); A61M 16/0858 (2014.02); A61M 16/0875 (2013.01); A61M 16/0883 (2014.02); A61M 16/201 (2014.02); A61M 16/202 (2014.02); A61M 16/207 (2014.02); A61M 16/208 (2013.01); A61M 2016/0027 (2013.01); A61M 2016/0036 (2013.01); A61M 2016/0039 (2013.01); A61M 2016/1025 (2013.01); A61M 16/1055 (2013.01); A61M 16/107 (2014.02); A61M 16/20 (2013.01); A61M 2202/0208 (2013.01); A61M 2205/0272 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/3358 (2013.01); A61M 2205/42 (2013.01); A61M 2205/502 (2013.01); A61M 2205/52 (2013.01); B01D 53/0476 (2013.01); B01D 53/053 (2013.01); B01D 2256/12 (2013.01); B01D 2257/102 (2013.01); B01D 2259/40009 (2013.01); B01D 2259/401 (2013.01); B01D 2259/4533 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A ventilator operable in a ventilation mode that provides a breath having an inspiration phase and an exhalation phase, and a cough-assist mode that provides a cough having an insufflation phase and an exsufflation phase, the ventilator comprising:
one or more ventilator connections to which a patient circuit is connectable for fluid communication therewith;
a blower having an inlet and an outlet, the blower being configured to move gases from the inlet to the outlet;
a cough-assist feature coupled to the blower, the cough-assist feature being configured to move between (a) a first position that fluidically connects the outlet of the blower to at least one of the one or more ventilator connections, and (b) a second position that fluidically connects the inlet of the blower to at least one of the one or more ventilator connections; and
a controller configured to:
control a position of the cough-assist feature such that the cough-assist feature is in the first position during the inspiration phase of the breath and the second position during the exsufflation phase of the cough, and
control a speed of the blower to provide a desired pressure and/or flow during the inspiration phase and the exhalation phase of the breath and the insufflation phase and the exsufflation phase of the cough.