US 12,263,316 B2
Fluid path optimization in catheter insertion systems
Joe Spataro, Cottonwood Heights, UT (US); Austin J. Mckinnon, Herriman, UT (US); and Bryan Haymond, Emigration Canyon, UT (US)
Assigned to Bard Access Systems, Inc., Salt Lake City, UT (US)
Filed by Bard Access Systems, Inc., Salt Lake City, UT (US)
Filed on Dec. 21, 2021, as Appl. No. 17/557,924.
Claims priority of provisional application 63/128,677, filed on Dec. 21, 2020.
Prior Publication US 2022/0193378 A1, Jun. 23, 2022
Int. Cl. A61M 25/06 (2006.01); A61M 25/01 (2006.01)
CPC A61M 25/0693 (2013.01) [A61M 2025/0183 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A catheter insertion system, comprising:
a catheter defining a catheter lumen and extending along a longitudinal axis;
a needle defining a needle lumen and disposed within a portion of the catheter lumen;
a housing supporting one of the catheter or the needle;
a blood flash indicator including a plunger fixedly attached to the housing and a syringe barrel slidably engaged with the plunger along the longitudinal axis between a distal position and a proximal position; and
a blood flash channel providing a fluid channel between the needle lumen and a proximal end of the syringe barrel, the blood flash channel providing a shorter fluid pathway when the syringe barrel is in the proximal position relative to the syringe barrel in the distal position.