US 12,085,963 B2
Systems, apparatus, and methods for reducing fluid pressure in a fluid line
Andrew Lane, Rolesville, NC (US); Savannah K. Steele, Durham, NC (US); Galen C. Robertson, Apex, NC (US); Mark D. Piehl, Chapel Hill, NC (US); Stephen Latham, Sun Prairie, WI (US); Douglas Rodenkirch, Sun Prairie, WI (US); Jesse Darley, Madison, WI (US); Curtis Irwin, Madison, WI (US); and Amrish Chourasia, Beloit, WI (US)
Assigned to 410 Medical, Inc., Researh Triangle Park, NC (US)
Filed by 410 Medical, Inc., Durham, NC (US)
Filed on Dec. 21, 2020, as Appl. No. 17/129,107.
Application 17/129,107 is a continuation of application No. 16/539,569, filed on Aug. 13, 2019, granted, now 10,871,788, issued on Dec. 22, 2020.
Claims priority of provisional application 62/718,139, filed on Aug. 13, 2018.
Prior Publication US 2021/0325916 A1, Oct. 21, 2021
Int. Cl. G05D 16/06 (2006.01); A61M 39/22 (2006.01)
CPC G05D 16/0655 (2013.01) [A61M 39/22 (2013.01); A61M 2205/3334 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
a source of pressurized fluid configured to deliver fluid at a source pressure, the source of pressurized fluid including a fluid receptacle and a one-way valve configured such that fluid can flow from the fluid receptacle and through the one-way valve in a first direction and fluid is prevented from flowing in a second direction opposite the first direction through the one-way valve and into the fluid receptacle of the source of pressurized fluid; and
a fluid pressure regulating device including a tube having a first end defining an inlet and a second end defining an outlet, the tube defining a reservoir, the reservoir having a first volume in a first configuration of the tube, the fluid pressure regulating device fluidically coupleable to the source of pressurized fluid such that the source of pressurized fluid is in fluidic communication with the fluid pressure regulating device, the tube configured to expand from the first configuration to a second configuration in which the reservoir has a second volume greater than the first volume when a pressure of fluid within the reservoir increases, the tube being resiliently biased toward the first configuration, the fluid pressure regulating device configured to deliver fluid having a pulsatile flow rate from the reservoir of the tube via the outlet,
the tube configured such that, in the first configuration of the tube, fluid can flow from the source of pressurized fluid to a patient by flowing through the inlet of the tube and into contact with an inner wall of the tube, flowing along and in contact with the inner wall of the tube from the first end of the tube to the second end of the tube, and flowing from the second end of the tube through the outlet of the tube,
the fluid pressure regulating device configured such that, when fluid is delivered from the fluid receptacle of the source of pressurized fluid through the inlet of the first end of the tube to the reservoir of the tube at the source pressure, the reservoir of the tube receives fluid such that the tube expands from the first configuration to the second configuration and fluid is delivered from the reservoir of the tube through the outlet of the second end of the tube.