US 12,220,209 B2
Method and device for verification of intra-luminal placement and patency for vascular access devices
Robert J. Anderson, Rochester, MN (US); Eric M. Dinges, Edina, MN (US); and Han J. Kim, Sunnyvale, CA (US)
Assigned to Becton, Dickinson and Company, Franklin Lakes, NJ (US)
Filed by Becton, Dickinson and Company, Franklin Lakes, NJ (US)
Filed on Jun. 27, 2022, as Appl. No. 17/850,833.
Application 17/850,833 is a continuation of application No. 16/185,959, filed on Nov. 9, 2018, granted, now 11,369,274, issued on Jun. 28, 2022.
Claims priority of provisional application 62/584,496, filed on Nov. 10, 2017.
Prior Publication US 2022/0386879 A1, Dec. 8, 2022
Int. Cl. A61B 5/02 (2006.01); A61B 5/00 (2006.01); A61B 5/0215 (2006.01); A61B 5/06 (2006.01); A61B 5/1455 (2006.01); A61B 17/34 (2006.01); A61M 25/06 (2006.01); A61M 39/02 (2006.01); A61B 5/1459 (2006.01); A61M 25/00 (2006.01)
CPC A61B 5/02007 (2013.01) [A61B 5/0215 (2013.01); A61B 5/065 (2013.01); A61B 5/14552 (2013.01); A61B 5/6852 (2013.01); A61B 5/7405 (2013.01); A61B 5/743 (2013.01); A61B 5/746 (2013.01); A61B 17/3403 (2013.01); A61M 25/06 (2013.01); A61M 39/0247 (2013.01); A61B 5/1459 (2013.01); A61B 2562/0233 (2013.01); A61B 2562/0247 (2013.01); A61B 2562/221 (2013.01); A61M 2025/0004 (2013.01); A61M 25/003 (2013.01); A61M 2025/0681 (2013.01); A61M 2039/0267 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method of evaluating patency and placement of an intravascular lumen of a vascular access device in a patient, comprising:
inserting the vascular access device into the patient;
sensing variations in pressure from fluid or gas phase substances from a sensing element in the intravascular lumen of the vascular access device, wherein the sensing element is part of a sensor that includes a mounting end configured to sealingly mount the sensor to a proximal end of the vascular access device;
comparing the variations in pressure relative to a reference or calibration of a physiological parameter to produce variations in pressure in the intravascular lumen of the vascular access device indicative of proper patency or placement of the vascular access device in the patient; and
producing a user-perceivable estimation of whether proper patency or placement of the intravascular lumen of the vascular access device has been achieved in view of the comparing.