×

Time transformation of local activation times

  • US 10,357,168 B2
  • Filed: 03/07/2016
  • Issued: 07/23/2019
  • Est. Priority Date: 03/07/2016
  • Status: Active Grant
First Claim
Patent Images

1. An automatic method of determining local activation time (LAT) from at least three multi-channel cardiac electrogram signals from a patient, such signals including a mapping channel and a plurality of reference channels, the method carried out during a medical procedure and comprising:

  • capturing, digitizing, and storing the cardiac channel signals;

    using the mapping-channel signal and a first reference-channel signal to compute LAT values at a plurality of mapping-channel locations;

    monitoring the timing stability of the first reference-channel signal; and

    if the timing stability of the monitored signal falls below a timing-stability standard, using a second reference-channel signal to determine LAT values and avoid substantial loss of LAT values in spite of loss of timing stability,thereby to reduce the duration of the medical procedure.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×