Patent ID: 11931148
Assignee: BECTON, DICKINSON AND COMPANY
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 10:
11. A method of collecting blood, comprising:
inserting a catheter system into vasculature of a patient, wherein the catheter system comprises:
a catheter assembly, comprising:
a catheter adapter, comprising a distal end, a proximal end, and a lumen extending through the distal end of the catheter adapter and the proximal end of the catheter adapter; and
a catheter secured within the catheter adapter and extending distally from the distal end of catheter adapter;

a needle assembly, comprising:
a needle hub, comprising:
a distal end coupled to the proximal end of the catheter adapter;
a proximal end;
a flashback chamber extending through the proximal end of the needle hub; and
a through-hole disposed at a distal end of the flashback chamber; and

an introducer needle press-fit within the through-hole; and

a plug coupled to the proximal end of the needle hub, wherein the plug plugs a proximal opening of the flashback chamber and provides venting of the flashback chamber, wherein the plug comprises distal end, a proximal end, a lumen extending through the distal end of the plug and the proximal end of the plug, and a tubular section disposed between the distal end of the plug and the proximal end of the plug, wherein the distal end of the plug comprises a neck portion extending from the tubular section and a skirt extending from the tubular section to define an annular channel between the skirt and the neck portion, wherein the neck portion is inserted into the proximal end of the needle hub, wherein the proximal end of the plug comprises a luer adapter and a septum disposed within the luer adapter;

coupling a blood collection device to the proximal end of the plug; and
collecting blood from the vasculature within the blood collection device.