US 11,654,255 B2
Jet pump adaptor for ventilation system
Enrico Bambrilla, Irvine, CA (US); and Samir S. Ahmad, San Diego, CA (US)
Assigned to BREATHE TECHNOLOGIES, INC., Irvine, CA (US)
Filed by BREATHE TECHNOLOGIES, INC., Irvine, CA (US)
Filed on Jun. 3, 2019, as Appl. No. 16/430,202.
Application 16/430,202 is a continuation of application No. 14/020,032, filed on Sep. 6, 2013, granted, now 10,307,552.
Prior Publication US 2019/0282773 A1, Sep. 19, 2019
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 16/00 (2006.01); A61M 16/08 (2006.01); A61M 16/20 (2006.01); A61M 16/06 (2006.01); A61M 16/12 (2006.01); A61M 16/10 (2006.01)
CPC A61M 16/0096 (2013.01) [A61M 16/06 (2013.01); A61M 16/0858 (2014.02); A61M 16/125 (2014.02); A61M 16/206 (2014.02); A61M 16/208 (2013.01); A61M 16/0057 (2013.01); A61M 16/0875 (2013.01); A61M 16/106 (2014.02); A61M 16/1045 (2013.01); A61M 16/1055 (2013.01); A61M 16/127 (2014.02); A61M 2016/0027 (2013.01); A61M 2205/584 (2013.01); A61M 2205/6081 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An adaptor for fluidly coupling a flow generator to a ventilation mask in a respiratory assistance system, the adaptor comprising:
a connector which is fluidly connectible to the ventilation mask and defines an interior;
a tubular wall which protrudes into the interior of the connector and at least partially defines a throat, the tubular wall having a distal end which fluidly communicates with the interior of the connector and a proximal end which is opposite the distal end;
at least one entrainment port in open fluid communication with ambient air, the at least one entrainment port being at least partially defined by an aperture in the tubular wall between the distal end and the proximal end;
a jet nozzle in fluid communication with a gas delivery lumen of a main gas delivery tube that is connectable to the flow generator, the jet nozzle having a distal tip that is positioned within the throat at a distance from the distal end of the tubular wall to fluidly communicate gas into the throat with at least a portion of the at least one entrainment port between the distal tip of the jet nozzle and the distal end of the tubular wall, such that when gas is flowed through the gas delivery lumen, out the jet nozzle, and into the throat, ambient air is entrained through the at least one entrainment port; and
a pressure sensing lumen in fluid communication with a sensing lumen of the main gas delivery tube via an annular gap, the pressure sensing lumen extending through the adaptor in side-by-side relation to, and not within, the throat.