Patent ID: 11918339
Assignee: BARD ACCESS SYSTEMS, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 9:
10. A method of confirming a location of a tip of an indwelling catheter previously placed within a patient, the method comprising:
providing a tip confirmation system including an ivECG acquisition module, a multiscale complexity analysis module, and a notification module, the notification module including one or more of an audio signal, a visual signal, and a tactile signal;
coupling the ivECG acquisition module to the indwelling catheter previously placed within the patient with an adaptor;
establishing an electrical pathway between a distal end of the indwelling catheter and the ivECG acquisition module through the adaptor by way of a saline column or an electrically conductive device, the electrical pathway providing ECG data from a location at the distal end of the indwelling catheter to the ivECG acquisition module;
calculating a proximity index (P×I) function from the ECG data; and
indicating a location of a distal tip of the indwelling catheter relative to a desired location using the P×I function.