US 12,226,210 B2
Blood collection device and related systems and methods
Yiping Ma, Layton, UT (US); and Jonathan Karl Burkholz, Salt Lake City, UT (US)
Assigned to Becton, Dickinson and Company, Franklin Lakes, NJ (US)
Filed by Becton, Dickinson and Company, Franklin Lakes, NJ (US)
Filed on Aug. 13, 2021, as Appl. No. 17/401,506.
Claims priority of provisional application 63/065,785, filed on Aug. 14, 2020.
Prior Publication US 2022/0047195 A1, Feb. 17, 2022
Int. Cl. A61B 5/00 (2006.01); A61B 5/15 (2006.01); A61M 25/00 (2006.01); A61M 39/12 (2006.01); A61M 39/10 (2006.01)
CPC A61B 5/150992 (2013.01) [A61B 5/150267 (2013.01); A61M 25/0082 (2013.01); A61M 39/12 (2013.01); A61M 2039/1077 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A peripheral intravenous catheter system to reduce a risk of hemolysis, comprising:
a peripheral intravenous catheter;
a female luer adapter coupled to the peripheral intravenous catheter;
a blood collection device, comprising:
a distal end, comprising a male luer adapter coupled to the female luer adapter, the male luer adapter comprising a distal opening;
a cannula in fluid communication with the male luer adapter, wherein the cannula comprises a distal end and a sharp proximal tip;
an elongated neck disposed between the male luer adapter and the sharp proximal tip; and
a fluid pathway extending from the distal opening through the sharp proximal tip, wherein a diameter of the fluid pathway is constant and greater than a minimum inner diameter of the peripheral intravenous catheter, such that the fluid pathway is configured to increase flow rate and decrease shear stress, wherein an entire length of the fluid pathway is represented by L, wherein the diameter of the fluid pathway is represented by D, and wherein the peripheral intravenous catheter is at least one of:
(i) a 20 gauge (G) catheter, wherein D4/L is equal to or less than 3.1E-07 cubic inches; and
(ii) an 18 gauge (G) catheter, wherein D4/L is equal to or less than 5.8E-08 cubic inches.