US 11,730,903 B2
Nasal drug delivery device
John D. Hoekman, Seattle, WA (US); Michael Hite, Normandy Park, WA (US); Alan Brunelle, Woodinville, WA (US); Joel Relethford, Everett, WA (US); and Rodney J. Y. Ho, Mercer Island, WA (US)
Assigned to Impel Pharmaceuticals Inc., Seattle, WA (US)
Filed by Impel Pharmaceuticals Inc., Seattle, WA (US)
Filed on Oct. 25, 2019, as Appl. No. 16/664,588.
Application 16/664,588 is a continuation of application No. 15/338,097, filed on Oct. 28, 2016, granted, now 10,507,295.
Application 15/338,097 is a continuation of application No. 14/017,048, filed on Sep. 3, 2013, granted, now 9,550,036, issued on Jan. 24, 2017.
Application 14/017,048 is a continuation of application No. PCT/US2012/027754, filed on Mar. 5, 2012.
Claims priority of provisional application 61/498,974, filed on Jun. 20, 2011.
Claims priority of provisional application 61/484,025, filed on May 9, 2011.
Claims priority of provisional application 61/451,935, filed on Mar. 11, 2011.
Claims priority of provisional application 61/449,008, filed on Mar. 3, 2011.
Prior Publication US 2020/0078544 A1, Mar. 12, 2020
Int. Cl. A61M 15/08 (2006.01); A61M 11/02 (2006.01)
CPC A61M 15/08 (2013.01) [A61M 11/02 (2013.01); A61M 2202/0468 (2013.01); A61M 2202/064 (2013.01); A61M 2205/073 (2013.01); A61M 2205/8225 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device for delivery of a compound to a nasal cavity, the device comprising:
an air compression chamber;
a manual pressure actuator that causes air to be released from the air compression chamber upon actuation;
a diffuser in communication with the air compression chamber;
a drug chamber in communication with the diffuser and a diffusion tube, the drug chamber configured to hold the compound and the diffusion tube allowing for the released air to bypass the compound; and
a nozzle in communication with the drug chamber, wherein air released from the air compression chamber is configured to flow through the diffuser to contact and propel the compound out of the nozzle forming a plume.