US 12,263,292 B2
Dampening element for fluid management system
Michael S. H. Chu, Brookline, MA (US); Mayur kiran Patel, Framingham, MA (US); and Sacha Tang, Lowell, MA (US)
Assigned to BOSTON SCIENTIFIC SCIMED, INC., Maple Grove, MN (US)
Filed by BOSTON SCIENTIFIC SCIMED, INC., Maple Grove, MN (US)
Filed on Dec. 18, 2019, as Appl. No. 16/719,011.
Claims priority of provisional application 62/782,124, filed on Dec. 19, 2018.
Prior Publication US 2020/0200313 A1, Jun. 25, 2020
Int. Cl. A61M 1/00 (2006.01); A61M 5/168 (2006.01); F04B 11/00 (2006.01); F16L 55/04 (2006.01); A61M 1/30 (2006.01); A61M 1/36 (2006.01); F04B 39/00 (2006.01); F15B 1/02 (2006.01)
CPC A61M 1/772 (2021.05) [F16L 55/04 (2013.01); A61M 1/30 (2013.01); A61M 1/3604 (2014.02); A61M 5/16886 (2013.01); A61M 2205/3334 (2013.01); A61M 2206/22 (2013.01); F04B 11/0008 (2013.01); F04B 11/0016 (2013.01); F04B 11/0033 (2013.01); F04B 39/0027 (2013.01); F15B 1/021 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A fluid management system, comprising:
a fluid pump capable of generating a pulsatile flow of fluid;
a fluid pathway for transporting the pulsatile flow of fluid from a fluid source through the fluid pump to a medical device;
a dampening element in fluid communication with the fluid pathway, the dampening element comprising a first barrel and a second barrel each having a first end with a port in fluid communication with the fluid pathway and an opposing second end, the dampening element being responsive to pressure fluctuations of the pulsatile fluid flow to actively dampen the pressure fluctuations and smoothen the pulsatile fluid flow in both flow directions of the fluid pathway;
wherein the first barrel includes a first movable seal member disposed within the first barrel, a first biasing member disposed within the first barrel and engaged with the first movable seal member, and a first cap secured to the second end of the first barrel, wherein the first biasing member is disposed between the first movable seal member and the first cap; and
wherein the second barrel includes a second movable seal member disposed within the second barrel, a second biasing member disposed within the second barrel and engaged with the second movable seal member, and a second cap secured to the second end of the second barrel, wherein the second biasing member is disposed between the second movable seal member and the first end of the second barrel.