US 10,376,686 B2
Antimicrobial caps for medical connectors
Jonathan Karl Burkholz, Salt Lake City, UT (US); Huibin Liu, West Jordan, UT (US); S. Ray Isaacson, Roy, UT (US); Weston F. Harding, Lehi, UT (US); and Lawrence J. Trainer, Murray, UT (US)
Assigned to Becton, Dickinson and Company, Franklin Lakes, NJ (US)
Filed by Becton, Dickinson and Company, Franklin Lakes, NJ (US)
Filed on Apr. 23, 2014, as Appl. No. 14/260,027.
Prior Publication US 2015/0306369 A1, Oct. 29, 2015
Int. Cl. A61M 39/20 (2006.01); A61M 39/16 (2006.01)
CPC A61M 39/20 (2013.01) [A61M 39/16 (2013.01); A61M 39/162 (2013.01); A61M 39/165 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An antimicrobial system, comprising:
a catheter adapter having a proximal end, a distal end, an interior lumen disposed between the proximal end of the catheter adapter and the distal end of the catheter adapter, and a catheter extending from the distal end of the catheter adapter;
a connector comprising a side port coupled to the catheter adapter, the connector having an upper aperture, a bottom proximate the interior lumen of the catheter adapter, and an internal volume between the upper aperture and the bottom, the side port being disposed between the proximal and distal ends of the catheter adapter; and
an antimicrobial cap device comprising:
a first end configured to secure the antimicrobial cap device to the connector, the first end having an opening sized to receive at least the upper aperture of the connector;
a base;
one or more sidewalls connecting the base to the first end, one or more inner surfaces of the one or more sidewalls defining a volume sufficient to receive at least the upper aperture of the connector, wherein while the antimicrobial cap device is secured to the connector, the antimicrobial cap device and a portion of the connector form a closed volume comprising the internal volume of the connector; and
an antimicrobial plug having a proximal end attached to the base and a distal end disposed outwardly therefrom, wherein the distal end of the antimicrobial plug comprises a disc having a diameter that is greater than a diameter of the antimicrobial plug along a length of the antimicrobial plug between the proximal end of the antimicrobial plug and the distal end of the antimicrobial plug, wherein the disc and the proximal end of the antimicrobial plug are is monolithically formed as a single unit;
wherein the catheter adapter comprises a port valve disposed within the interior lumen of the catheter adapter, and the port valve forming a seal between the side port and the interior lumen of the catheter adapter, wherein the port valve selectively blocks fluid communication between the catheter adapter and the side port through the bottom of the connector, wherein upon injecting a fluid into the side port, the port valve is temporarily defeated to permit the fluid to bypass the port valve and enter the interior lumen of the catheter adapter; and
the distal end of the antimicrobial plug extends through the bottom to abut the port valve when the antimicrobial cap device is secured to the connector.