Patent ID: 11931095
Assignee: ST. JUDE MEDICAL, CARDIOLOGY DIVISION, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A method of determining a baseline impedance value for a first electrode in a plurality of electrodes located on a medical device for tissue contact detection, the method comprising:
measuring an impedance value of the first electrode generated in response to a drive signal to the first electrode;
assigning a baseline impedance value to the first electrode based on impedance values measured in a predetermined time interval;
determining a confidence value associated with the baseline impedance value; and
utilizing the baseline impedance value in determining contact status of the first electrode when the confidence value is at or above a predetermined threshold value, wherein determining a confidence value associated with the baseline impedance value includes incrementally increasing the confidence value based on a measured impedance value that exceeds the assigned baseline impedance value by more than a predetermined amount.