US 12,128,221 B2
Dynamic mixing and delivery system for mixing a therapeutic agent in an injector or autoinjector
Jeffrey Thomas Chagnon, Watertown, MA (US); Adam R Standley, Brookline, MA (US); Zachery John Dusterhoft, Waltham, MA (US); and Brent A Buchine, Austin, TX (US)
Assigned to Windgap Medical, Inc., Watertown, MA (US)
Filed by Windgap Medical, Inc., Watertown, MA (US)
Filed on Jun. 1, 2021, as Appl. No. 17/336,263.
Claims priority of provisional application 63/032,311, filed on May 29, 2020.
Prior Publication US 2022/0001112 A1, Jan. 6, 2022
Int. Cl. A61M 5/315 (2006.01); A61M 5/19 (2006.01); A61M 5/20 (2006.01); A61M 5/32 (2006.01)
CPC A61M 5/31596 (2013.01) [A61M 5/19 (2013.01); A61M 5/2066 (2013.01); A61M 5/3202 (2013.01); A61M 5/3294 (2013.01); A61M 2005/202 (2013.01); A61M 2005/2073 (2013.01); A61M 2005/31598 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A mixing and drug delivery system comprising:
a housing configured to hold a first container and a second container, where in the first container contains a first medicament component and the second container contains a second medicament component;
a first seal;
a second seal;
a seal opening component configured to open, remove or otherwise pierce the first seal and the second seal;
a fluidic channel that allows for fluidic communication between the first and second containers once the seal opening component has caused each of the first and second seals to be altered from a sealed stated to an open state;
a first plunger at least partially disposed within the first container and a second plunger at least partially disposed within the second container,
wherein depressing the first plunger drives a portion of the first medicament from the first container through the fluidic channel into the second container to mix with the second medicament, and
wherein the second plunger when depressed during a second transfer state causes a portion of the mixed medicament in the second container to transfer from the second container through the fluidic channel into the first container;
a delivery assembly, and
an actuation device that includes a stored energy source, whereupon actuating the actuation device causes the stored energy source to release and cause the second plunger to depress and force the mixed medicament disposed in the second container to flow out of the delivery assembly.