US 12,220,568 B2
Systems and methods for priming a fluid line
Lishan Aklog, Purchase, NY (US); Richard Yazbeck, Norwell, MA (US); Jessie Gifford, Sharon, MA (US); Julian Fricks, La Jolla, CA (US); and Peter Aliski, New York, NY (US)
Assigned to PAVmed Inc., New York, NY (US)
Appl. No. 18/275,878
Filed by PAVmed, Inc., New York, NY (US)
PCT Filed Feb. 4, 2022, PCT No. PCT/US2022/015332
§ 371(c)(1), (2) Date Aug. 4, 2023,
PCT Pub. No. WO2022/170110, PCT Pub. Date Aug. 11, 2022.
Claims priority of provisional application 63/145,824, filed on Feb. 4, 2021.
Prior Publication US 2024/0091464 A1, Mar. 21, 2024
Int. Cl. A61M 5/36 (2006.01); A61M 5/168 (2006.01); F15D 1/02 (2006.01); A61M 5/14 (2006.01)
CPC A61M 5/36 (2013.01) [A61M 5/16804 (2013.01); F15D 1/025 (2013.01); A61M 2005/1402 (2013.01); A61M 5/16877 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A system for exhausting air from within a flow pathway, the system comprising:
a flow resistor having an input designed to be coupled to a fluid source and an outlet designed to output a fluid at an output flow rate;
the flow resistor comprising a cylinder and a piston, the piston movably disposed within the cylinder, an adjustable flow channel for modifying the output flow rate of the fluid flowing through the flow resistor, a first visual indicator, and a second visual indicator; and
a priming device having an elongated portion, the elongated portion being substantially rigid axially and configured for insertion through the outlet of the flow resistor to engage the piston of the flow resistor such that the piston is disposed proximally towards the input and relative to the cylinder to adjust the output flow rate to allow air to be exhausted from the flow pathway through the flow resistor;
wherein the priming device further includes a viewing window conveying a status of the system to a user, wherein the status of the system includes at least a priming mode where trapped air can be exhausted through the flow resistor and wherein during this priming mode, the piston is displaced such that the first and the second visual indicators are not viewable within the viewing window.