Patent ID: 11931181
Assignee: C. R. BARD, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A method for reconfirming an initial position of a distal end of a catheter tube positioned in a patient, the catheter tube part of a catheter assembly, the method comprising:
detecting an intravascular ECG signal via an inner conductive pathway in a lumen of the catheter tube;
detecting a reference ECG signal via an outer conductive pathway deposited on an outer surface of the catheter tube;
determining a current position of the distal end of the catheter tube based on detection of the intravascular ECG signal and the reference ECG signal; and
comparing the current position of the distal end of the catheter tube with the initial position of the distal end of the catheter tube.