US 11,654,272 B2
One-time priming IV infusion extension set
Jiagui Li, Shanghai (CN); Rongjie Liang, Suzhou (CN); and George Michael Mansour, Diamond Bar, CA (US)
Assigned to CareFusion 303, Inc., San Diego, CA (US)
Filed by CareFusion 303, Inc., San Diego, CA (US)
Filed on Sep. 20, 2019, as Appl. No. 16/578,072.
Prior Publication US 2021/0085949 A1, Mar. 25, 2021
Int. Cl. A61M 39/10 (2006.01)
CPC A61M 39/105 (2013.01) [A61M 2039/1077 (2013.01); A61M 2039/1083 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A multi-tubing intravenous (IV) extension set, comprising:
an outlet tubing comprising a proximal end fluidly coupled to a primary multi-tubing connector and a distal end configured to be fluidly coupled to a vascular device for patient;
a primary inlet tubing comprising a proximal end having an adapter for connection to a syringe containing a priming or a medicinal fluid, and a distal end coupled to the primary multi-tubing connector;
at least one secondary inlet tubing comprising a proximal end having an adapter for receiving a medicinal fluid and a distal end selectively fluidly coupled to the primary multi-tubing, the adapter comprising a tubular body having a proximal end, a distal end fluidly coupled to the proximal end of the at least one secondary inlet tubing, an outer surface, an inner surface defining a lumen therethrough, and an air vent extending between the proximal and distal ends of the tubular body, and from the inner surface to the outer surface of the tubular body to fluidly communicate the lumen with the outer surface of the tubular body; and
a slide clamp positioned on the outlet tubing and configured to restrict fluid flow between the proximal and distal ends of the outlet tubing in a closed configuration to cause priming fluid flowing into the outlet tubing via the multi-tubing connector to reverse direction and flow into the at least one secondary inlet tubing via the primary multi-tubing connector.