US 12,290,250 B2
Devices and methods for delivering powdered agents
Andrew Pic, Northboro, MA (US); Laurie Lehtinen, Boylston, MA (US); and Ryan Evers, Billerica, MA (US)
Assigned to Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed by Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed on Mar. 5, 2021, as Appl. No. 17/193,598.
Claims priority of provisional application 62/986,352, filed on Mar. 6, 2020.
Prior Publication US 2021/0275157 A1, Sep. 9, 2021
Int. Cl. A61B 17/00 (2006.01); A61M 11/00 (2006.01); A61M 13/00 (2006.01)
CPC A61B 17/00491 (2013.01) [A61B 2017/00367 (2013.01); A61M 11/003 (2014.02); A61M 13/00 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A device for delivering an agent, comprising:
a housing defining an enclosure, wherein the housing is configured to store an agent;
an inlet, in fluid communication with the enclosure, for receiving a flow of pressurized fluid;
an outlet in fluid communication with the enclosure;
a filter disposed within the enclosure, wherein a wall of the filter includes a plurality of pores, wherein the pores are configured such that the fluid is permitted to pass through the pores into a channel defined by an inner surface of the wall; and
an actuation member disposed within the enclosure, wherein the actuation member is configured to transition between a first configuration, in which portions of the agent disposed proximally to the actuation member are prevented from passing distally of the actuation member, and a second configuration, in which portions of the agent disposed proximally of the actuation member are capable of passing distally of the actuation member;
wherein the actuation member includes a rotatable shaft, wherein the rotatable shaft includes an opening extending through the rotatable shaft substantially perpendicularly to a longitudinal axis of the rotatable shaft;
wherein in the first configuration, the actuation member is positioned relative to the enclosure with the opening not in fluid communication with the enclosure, such that the agent cannot enter the opening from the enclosure;
wherein in the second configuration, the actuation member is positioned relative to the enclosure with the opening in fluid communication with the enclosure, such that the agent is capable of passing through the opening from the enclosure to enter the outlet.