US 11,918,746 B2
Concentrator with electronic handheld remote delivery device
Todd Allum, Livermore, CA (US); and Gregory J. Kapust, San Ramon, CA (US)
Assigned to Inogen, Inc., Goleta, CA (US)
Filed by Inogen, Inc., Goleta, CA (US)
Filed on Jan. 13, 2023, as Appl. No. 18/154,671.
Application 18/154,671 is a continuation of application No. 16/888,502, filed on May 29, 2020, granted, now 11,554,238.
Claims priority of provisional application 62/854,930, filed on May 30, 2019.
Prior Publication US 2023/0226302 A1, Jul. 20, 2023
Int. Cl. A61M 16/10 (2006.01); A61M 16/00 (2006.01)
CPC A61M 16/101 (2014.02) [A61M 16/022 (2017.08); A61M 2016/1025 (2013.01); A61M 2202/0208 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for providing therapy gases to a subject, the system comprising:
a gas source device comprising:
an inlet configured to receive gas from a gas source;
an outlet;
a pressure sensor configured to generate one or more signals responsive to detecting pressure of gas at said outlet;
a flow sensor configured to generate one or more signals responsive to detecting flow volume of gas passing through said gas source device;
a gas source device controller configured to receive said one or more signals generated by each of said pressure sensor and said flow sensor; and
a pressure regulator; and
a first flexible tube comprising a first end and a second end opposite said first end, said first end configured to be connected to said outlet of said gas source device;
a user interface device for providing said gas to nostrils of a subject;
a second flexible tube having a first end and a second end opposite said first end of the second flexible tube, said first end of the second flexible tube configured to be connected to said user interface device; and
a handheld remote delivery device comprising:
an inlet configured to be connected to said second end of said first flexible tube to facilitate fluid communication with said outlet of said gas source device;
an outlet configured to be connected to said second end of said second flexible tube to facilitate fluid communication with said user interface device;
a flow control device comprising at least one valve for controlling gas flow through the handheld remote delivery device;
a battery;
one or more user input devices configured to receive an instruction to change the handheld remote delivery device from a first flow setting to a second flow setting; and
a remote delivery device controller, wherein, in response to receiving said instruction from said one or more user input devices, said remote delivery device controller is configured to:
cause said at least one valve of said flow control device to cycle between a first position and a second position a plurality of times during a first time interval, said at least one valve being open when in said first position and closed when in said second position; and
cause said at least one valve of said flow control device to move from a third position associated with said first flow setting to a fourth position associated with said second flow setting, said at least one valve being open when in said fourth position;
wherein the gas source device controller is configured to:
determine said change in the handheld remote delivery device from said first flow setting to said second flow setting based on said one or more signals received from said pressure sensor, said one or more signals received from said flow sensor, and said plurality of times said at least one valve of said flow control device cycles between said first and second positions during said first time interval; and
alter, using said pressure regulator, pressure of gas flowing through said outlet of said gas source device through said first flexible tube and to said handheld remote delivery device based on said determined change in the remote delivery device from said first flow setting to said second flow setting.