×

Telemetry of combined endocavitary atrial and ventricular signals

  • US 8,391,975 B2
  • Filed: 09/28/2005
  • Issued: 03/05/2013
  • Est. Priority Date: 09/28/2005
  • Status: Active Grant
First Claim
Patent Images

1. A method comprising:

  • selecting a first sensing electrode configuration that includes at least one electrode operatively disposed along a first heart chamber;

    selecting a second sensing electrode configuration that includes at least one electrode operatively disposed along a second heart chamber;

    setting a first sensing window corresponding to cardiac electrical events occurring in the second heart chamber;

    setting a second sensing window corresponding to cardiac electrical events occurring in the first heart chamber;

    enabling a first sense amplifier coupled to the first sensing electrode configuration;

    enabling a second sense amplifier coupled to the second sensing electrode configuration;

    sensing a first signal corresponding to cardiac electrical events occurring in the second heart chamber during the first sensing window using the first sensing electrode configuration, wherein a signal-to-noise ratio of the first sense amplifier is adjusted to preclude sensing of the second signal and a signal-to-noise ratio of the second sense amplifier is adjusted to preclude sensing of the first signal;

    sensing a second signal corresponding to cardiac electrical events occurring in the first heart chamber during the second sensing window using the second sensing electrode configuration;

    transmitting the first signal and the second signal from an implantable medical device to an external monitor during a telemetry session;

    receiving, with the external monitor, the first signal and the second signal from the implantable medical device during the telemetry session;

    separately adjusting, at the external monitor, a gain of each of the respective first signal and the second signal received from the implantable medical device;

    merging the adjusted first signal and the second signal into a single merged signal; and

    displaying the single merged signal on a display of the external monitor to provide an ECG signal.

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