US 12,138,431 B2
Medical devices for blood reflux prevention and methods of use
Girum Yemane Tekeste, Hackensack, NJ (US)
Assigned to Becton, Dickinson and Company, Franklin Lakes, NJ (US)
Filed by Becton, Dickinson and Company, Franklin Lakes, NJ (US)
Filed on Dec. 2, 2022, as Appl. No. 18/073,928.
Application 18/073,928 is a continuation of application No. 16/141,169, filed on Sep. 25, 2018, granted, now 11,517,675, issued on Dec. 6, 2022.
Application 16/141,169 is a continuation of application No. 15/066,136, filed on Mar. 10, 2016, granted, now 10,086,142, issued on Oct. 2, 2018.
Application 15/066,136 is a continuation of application No. 13/589,679, filed on Aug. 20, 2012, granted, now 9,302,049, issued on Apr. 5, 2016.
Prior Publication US 2023/0106812 A1, Apr. 6, 2023
Int. Cl. A61M 5/31 (2006.01); A61M 39/24 (2006.01)
CPC A61M 5/31 (2013.01) [A61M 39/24 (2013.01); A61M 2005/3104 (2013.01); A61M 2005/3117 (2013.01); A61M 2005/3128 (2013.01); A61M 2039/2406 (2013.01); A61M 2039/2433 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A method for preventing blood reflux and sealing a vascular access device (VAD) comprising:
providing a vascular access device having a catheter connector;
providing a flush syringe assembly comprising a barrel, a stopper, plunger rod having a thumb press, a plug disposed inside the barrel, and a Luer cap at a distal end of the barrel;
connecting the flush syringe assembly to a catheter connector by screwing the Luer cap to the catheter connector;
pushing on the plunger rod in a distal direction to displace a prefilled flush fluid inside the barrel of the flush syringe assembly into the vascular access device;
applying continuous pressure on the thumb press of the plunger rod in a distal direction to advance the stopper towards the plug,
pressing on the thumb press of the plunger rod in a distal direction such that the stopper contacts the plug and advances the plug into the lumen of the Luer cap to seal the lumen of the Luer cap; and
disconnecting and discarding the barrel, stopper and plunger rod assembly from the Luer cap and plug assembly allowing the Luer cap and plug to seal the vascular access device.