US 12,171,934 B2
Respiratory delivery device
Benjamin Barnaby Trout, Brisbane (AU); Lachlan David Farquhar, Brisbane (AU); Patrick Joseph Lynch, Brisbane (AU); and John Fredatovich, Brisbane (AU)
Assigned to DE MOTU CORDIS PTY LTD, Windsor (AU)
Filed by De Motu Cordis Pty Ltd, Windsor (AU)
Filed on Jun. 27, 2023, as Appl. No. 18/214,915.
Claims priority of application No. 2023901616 (AU), filed on May 23, 2023.
Prior Publication US 2023/0364362 A1, Nov. 16, 2023
Int. Cl. A61M 15/00 (2006.01)
CPC A61M 15/0035 (2014.02) [A61M 15/0008 (2014.02); A61M 15/0041 (2014.02); A61M 2202/064 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A device for delivery of a composition to an airway of a subject, the device having a body defined about a central axis and comprising:
in fluid communication:
a composition receptacle adapted to receive a composition capsule containing the composition;
a dispersion chamber defined by at least one wall which comprises two openings therein, the dispersion chamber located adjacent the composition receptacle; and
a gas outlet,
wherein the two openings are each continuous with a respective flow inlet path each of which is at least partially defined between an outer flow inlet path wall which is continuous with the at least one wall of the dispersion chamber and an inner flow inlet path wall, and each flow inlet path extending between the respective opening and a respective gas inlet allowing gas external to the device to enter the device, each gas inlet having a first end directly in contact with gas external to the device and a second end positioned proximate a respective flow inlet path, the central axis passing through a portion of the first and second ends of each respective gas inlet, the gas inlets form a passage through the body of the device adjacent the dispersion chamber to define an inlet gas axis extending substantially perpendicular to the central axis,
wherein the at least one wall of the dispersion chamber has a distal end adjacent the composition receptacle, defining a first plane, and a proximal end closer to the gas outlet than the distal end and defining a second plane; and each gas inlet is formed in a region of the body of the device overlapping a region formed between the first and second planes,
wherein the flow inlet paths extend in a plane perpendicularly to the central axis between the gas inlets and the two openings in the at least one wall of the dispersion chamber,
wherein the flow inlet paths taper to form at least one point of maximum constriction located adjacent the respective openings in the at least one wall of the dispersion chamber and a cross-sectional area of each flow inlet path decreases on moving from the respective gas inlet in a direction of the respective opening.