PACEMAKER PASSIVE MEASUREMENT TESTING SYSTEM AND METHOD
First Claim
1. A method for operating a pacemaker with an atrial sensing channel and a ventricular sensing channel, the method comprising:
- operating the pacemaker in a non-atrial triggered mode during which the ventricular sensing channel is an active sensing channel and the atrial sensing channel is an inactive sensing channel not used for inhibiting or triggering any pacing pulse;
initiating a passive measurement testing mode including performing a sensing test without disturbing the operation of the pacemaker in the non-atrial triggered mode;
receiving atrial sensing data associated with the atrial sensing channel during the sensing test; and
determining whether atrial sensing is liable enough to allow switching the operation of the pacemaker from the non-atrial triggered mode to an atrial triggered mode using the atrial sensing data.
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Abstract
A system and method for passively testing a cardiac pacemaker in which sensing signal amplitudes and lead impedance values are measured and stored while the pacemaker is functioning in its programmed mode. The amplitude and impedance data may be gotten and stored periodically at regular intervals to generate a historical record for diagnostic purposes. Sensing signal amplitudes may also be measured and stored from a sensing channel which is currently not programmed to be active as long as the pacemaker is physically configured to support the sensing channel. Such data can be useful in evaluating whether a switch in the pacemaker'"'"'s operating mode is desirable.
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Citations
20 Claims
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1. A method for operating a pacemaker with an atrial sensing channel and a ventricular sensing channel, the method comprising:
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operating the pacemaker in a non-atrial triggered mode during which the ventricular sensing channel is an active sensing channel and the atrial sensing channel is an inactive sensing channel not used for inhibiting or triggering any pacing pulse;
initiating a passive measurement testing mode including performing a sensing test without disturbing the operation of the pacemaker in the non-atrial triggered mode;
receiving atrial sensing data associated with the atrial sensing channel during the sensing test; and
determining whether atrial sensing is liable enough to allow switching the operation of the pacemaker from the non-atrial triggered mode to an atrial triggered mode using the atrial sensing data. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for operating a pacemaker with atrial and ventricular sensing channels, the method comprising:
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operating the pacemaker in a non-atrial triggered mode during which the ventricular sensing channel is an active sensing channel and the atrial sensing channel is an inactive sensing channel not used for inhibiting or triggering any pacing pulse;
initiating a passive measurement testing mode during which the atrial sensing channel is not used for inhibiting or triggering any pacing pulse;
performing a sensing test including receiving a sense signal in the atrial sensing channel during the passive measurement testing mode;
deactivating the passive measurement testing mode and operating the pacemaker in the non-atrial triggered mode upon completion of the sensing test; and
determining whether atrial sensing is reliable enough to allow switching of the operation of the pacemaker to an atrial triggered mode from the non-atrial triggered mode using the sense signal received in the atrial sensing channel during the passive measurement testing mode. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A cardiac pacemaker coupled to a ventricular lead and an atrial lead, comprising:
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a ventricular sensing channel coupled to the ventricular lead;
an atrial sensing channel coupled to the atrial lead;
a storage medium; and
a controller coupled to the ventricular sensing channel, the atrial sensing channel, and the storage medium, the controller programmed to;
operate the cardiac pacemaker in a non-atrial triggered mode during which the ventricular sensing channel is active and the atrial sensing channel is inactive;
initiate a passive measurement testing mode;
obtain atrial sensing data using the atrial sensing channel during the passive measurement testing mode; and
switch to operating the cardiac pacemaker in an atrial triggered mode after atrial sensing is decided to be reliable based on the atrial sensing data. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification