SYSTEM AND METHOD FOR DUAL-CHAMBER PACING
First Claim
1. An implantable medical device system, comprising:
- a pacemaker implantable in an atrial chamber of a heart of a patient, comprising;
a sensing module configured to sense near field atrial events from a cardiac signal received by the sensing module and configured to sense far field ventricular events,a pulse generator configured to generate and deliver atrial pacing pulses via a pair of electrodes, anda control module coupled to the sensing module and the pulse generator and configured to;
establish an atrial lower rate interval to control a rate of delivery of the atrial pacing pulses,determine a rate of the far field ventricular events sensed by the sensing module,determine an atrial event rate,compare the rate of the sensed far field ventricular events to the atrial event rate, andadjust the atrial lower rate interval in response to the comparison.
1 Assignment
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Accused Products
Abstract
A medical device system including a pacemaker implantable in an atrial chamber of a patient'"'"'s heart is configured to sense near field atrial events from a cardiac signal received by a sensing module of the pacemaker and to sense far field ventricular events. The pacemaker is configured to establish an atrial lower rate interval to control a rate of delivery of atrial pacing pulses, determine a rate of the far field ventricular events sensed by the sensing module, determine an atrial event rate, compare the rate of the sensed far field ventricular events to the atrial event rate, and adjust the atrial lower rate interval in response to the comparison.
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Citations
34 Claims
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1. An implantable medical device system, comprising:
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a pacemaker implantable in an atrial chamber of a heart of a patient, comprising; a sensing module configured to sense near field atrial events from a cardiac signal received by the sensing module and configured to sense far field ventricular events, a pulse generator configured to generate and deliver atrial pacing pulses via a pair of electrodes, and a control module coupled to the sensing module and the pulse generator and configured to; establish an atrial lower rate interval to control a rate of delivery of the atrial pacing pulses, determine a rate of the far field ventricular events sensed by the sensing module, determine an atrial event rate, compare the rate of the sensed far field ventricular events to the atrial event rate, and adjust the atrial lower rate interval in response to the comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method, comprising:
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sensing near field atrial events from a cardiac signal received by a sensing module of a pacemaker implantable in an atrial chamber of a patient'"'"'s heart; sensing far field ventricular events by the pacemaker; establishing by the pacemaker an atrial lower rate interval to control a rate of delivery of atrial pacing pulses; determining a rate of the far field ventricular events sensed by the sensing module; determining an atrial event rate; comparing the rate of the sensed far field ventricular events to the atrial event rate; and adjusting the atrial lower rate interval in response to the comparison. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A non-transitory, computer-readable storage medium comprising a set of instructions which, when executed by a control module of a pacemaker implantable in an atrium of a patient'"'"'s heart, cause the pacemaker to:
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sense near field atrial events from a cardiac signal received by a sensing module of the pacemaker; sense far field ventricular events; establish an atrial lower rate interval to control a rate of delivery of atrial pacing pulses; determine a rate of the sensed far field ventricular events; determine an atrial event rate; compare the rate of the sensed far field ventricular events to the atrial event rate; and adjust the atrial lower rate interval in response to the comparison.
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Specification