US 12,290,628 B2
Agent delivery systems and methods of using the same
Ra Nam, Lawrence, MA (US); Tony Soukalopoulos, Worcester, MA (US); Dennis Brian Hubbard, Jr., Lancaster, MA (US); and Naroun Suon, Lawrence, 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. 23, 2021, as Appl. No. 17/210,166.
Claims priority of provisional application 62/994,052, filed on Mar. 24, 2020.
Prior Publication US 2021/0299365 A1, Sep. 30, 2021
Int. Cl. A61M 11/00 (2006.01); A61M 5/31 (2006.01); A61M 5/315 (2006.01); A61M 25/00 (2006.01)
CPC A61M 11/003 (2014.02) [A61M 5/3145 (2013.01); A61M 5/31511 (2013.01); A61M 5/31581 (2013.01); A61M 11/007 (2014.02); A61M 25/0023 (2013.01); A61M 2202/064 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A medical device comprising:
an agent including a plurality of particles of varying size;
a handle including an enclosure for storing the agent; and
a receiver having:
a primary lumen with a cross-sectional dimension,
a proximal end having a first cross-sectional dimension that is smaller than the cross-sectional dimension of the primary lumen, and
a distal end having a second cross-sectional dimension that is smaller than the cross-sectional dimension of the primary lumen and the first cross-sectional dimension of the proximal end, such that the cross-sectional dimension of the primary lumen that is disposed between the proximal end and the distal end is greater than each of the first cross-sectional dimension and the second cross-sectional dimension;
wherein the receiver has an axis extending between the proximal end and the distal end, the proximal end configured to receive all of the plurality of particles of varying size of the agent conveyed from the handle to the receiver, the distal end in fluid communication with an insertion portion including a lumen having a cross-sectional dimension smaller than the cross-sectional dimension of the primary lumen;
wherein each of the cross-sectional dimension of the primary lumen, the cross-sectional dimension of the lumen of the insertion portion, the first cross-sectional dimension of the proximal end, and the second cross-sectional dimension of the distal end, is measured transverse to the axis;
wherein the distal end is configured to receive the plurality of particles of varying size that are received inside the primary lumen from the proximal end of the receiver and allow only a first portion of the agent to exit the primary lumen and enter the lumen of the insertion portion based on a predefined particle size, such that a second portion of the agent including the particles having a size that exceeds the predefined particle size are inhibited by the distal end from exiting the primary lumen and entering the lumen of the insertion portion; and
wherein the primary lumen is configured to collect the particles having the size that exceeds the predefined particle size between the proximal end and the distal end such that the second portion of the agent remains suspended in the primary lumen, the lumen of the insertion portion is configured to deliver the first portion of the agent based on the sizes of the first portion of the particles received in the lumen of the insertion portion not exceeding the predefined particle size.