US 12,472,313 B2
Apparatuses and methods for delivering powdered agents
Amanda Lynn Smith, Brookline, MA (US); Gerald Fredrickson, Westford, MA (US); Dennis Brian Hubbard, Jr., Lancaster, MA (US); Stan Robert Gilbert, Litchfield, NH (US); Caitlyn Emily Bintz, Marlborough, MA (US); and Andrew Pic, Ashland, MA (US)
Assigned to Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed by Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed on Jul. 1, 2022, as Appl. No. 17/856,498.
Application 17/856,498 is a continuation of application No. 15/865,723, filed on Jan. 9, 2018, granted, now 11,406,771.
Claims priority of provisional application 62/444,586, filed on Jan. 10, 2017.
Prior Publication US 2022/0331528 A1, Oct. 20, 2022
Int. Cl. A61M 11/02 (2006.01); A61M 13/00 (2006.01); A61B 17/00 (2006.01); A61M 11/06 (2006.01); A61M 15/00 (2006.01); A61M 16/12 (2006.01)
CPC A61M 11/02 (2013.01) [A61M 13/00 (2013.01); A61B 2017/00893 (2013.01); A61M 11/06 (2013.01); A61M 15/0005 (2014.02); A61M 15/0008 (2014.02); A61M 15/0065 (2013.01); A61M 16/127 (2014.02); A61M 2202/064 (2013.01); A61M 2205/8218 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a powder chamber housing a powdered agent; and
a chassis in fluid communication with the powder chamber, the chassis including:
a first passage for receiving a pressurized fluid;
a second passage configured to receive the powdered agent from the powder chamber;
a tapered region positioned downstream from the second passage, wherein at least a portion of the powdered agent from the powder chamber is received in the tapered region; and
a third passage in fluid communication with the first passage and the second passage via the tapered region, the third passage is configured to direct the pressurized fluid from the first passage to the tapered region, wherein the third passage includes a longitudinal axis that extends relatively upward and laterally away from the first passage, such that an angle of the third passage relative to the tapered region causes the pressurized fluid to be emitted tangentially relative to a wall of the tapered region to create a vortex of the pressurized fluid and the powdered agent within the second passage;
wherein the chassis is configured to:
(i) direct the portion of the powdered agent received in the tapered region upstream into the second passage and toward the powder chamber in response to receiving the pressurized fluid;
(ii) agitate the powdered agent; and
(iii) direct the agitated powdered agent downstream from the second passage through the tapered region to exit the chassis.