SYSTEMS AND METHODS FOR DETERMINING VENTRICULAR PACING SITES FOR USE WITH MULTI-POLE LEADS
First Claim
1. A method for controlling multi-site ventricular pacing for use by an implantable cardiac rhythm management device equipped with a multi-pole ventricular lead having a plurality of electrodes, the method comprising:
- determining preliminary multi-site interventricular pacing delays (VVT) for the plurality of electrodes of the multi-pole lead based, at least in part, on multi-site interventricular conduction time delay values (Δ
) determined for the electrodes;
determining multi-site interelectrode pacing delays (IVV) for the plurality of electrodes of the multi-pole lead based the preliminary interventricular pacing delays (VVT);
determining an order by which the electrodes of the multi-pole lead are to be used to deliver a set of multi-site pacing pulses, with the order determined based on the interelectrode pacing time delays (IVV); and
delivering multi-site ventricular pacing by delivering a set of pulses using the electrodes of the multi-pole lead in the determined order.
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Accused Products
Abstract
Techniques are provided for use by implantable medical devices for controlling multi-site left ventricular (MSLV) pacing using a multi-pole left ventricular (LV) lead. In various examples, a reduced number of “V sense”, “RV pace”, and “LV pace” tests are performed to determine preferred or optimal interventricular pacing delays (VV) for use with MSLV pacing. Additionally, techniques are described for sorting the order by which LV sites are to be paced during MSLV pacing. Furthermore, techniques are described for detecting and addressing circumstances where AV/PV delays are longer than corresponding AR/PR delays during MSLV.
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Citations
14 Claims
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1. A method for controlling multi-site ventricular pacing for use by an implantable cardiac rhythm management device equipped with a multi-pole ventricular lead having a plurality of electrodes, the method comprising:
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determining preliminary multi-site interventricular pacing delays (VVT) for the plurality of electrodes of the multi-pole lead based, at least in part, on multi-site interventricular conduction time delay values (Δ
) determined for the electrodes;determining multi-site interelectrode pacing delays (IVV) for the plurality of electrodes of the multi-pole lead based the preliminary interventricular pacing delays (VVT); determining an order by which the electrodes of the multi-pole lead are to be used to deliver a set of multi-site pacing pulses, with the order determined based on the interelectrode pacing time delays (IVV); and delivering multi-site ventricular pacing by delivering a set of pulses using the electrodes of the multi-pole lead in the determined order. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for controlling ventricular pacing for use by an implantable cardiac rhythm management device equipped with a multi-pole ventricular lead having a plurality of electrodes, the system comprising:
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a multi-site interventricular pacing delay determination unit operative to determine preliminary multi-site interventricular pacing delays (VVT) for the plurality of electrodes of the multi-pole lead based, at least in part, on multi-site interventricular conduction time delay values (Δ
) determined for the electrodes;a multi-site interelectrode pacing delay determination unit operative to determine multi-site interelectrode pacing delays (IVV) for the plurality of electrodes of the multi-pole lead based the preliminary interventricular pacing delays (VVT); a multi-pole pacing site ordering unit operative to determine an order by which the electrodes of the multi-pole lead are to be used to deliver a set of multi-site pacing pulses, with the order determined based on the interelectrode pacing time delays (IVV); and a multi-pole ventricular pacing controller operative to deliver a set of pulses using the electrodes of the multi-pole lead.
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14. A system for controlling ventricular pacing for use by an implantable cardiac rhythm management device equipped with a multi-pole ventricular lead having a plurality of electrodes, the system comprising:
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means for determining preliminary multi-site interventricular pacing delays (VVT) for the plurality of electrodes of the multi-pole lead based, at least in part, on multi-site interventricular conduction time delay values (Δ
) determined for the electrodes;means for determining multi-site interelectrode pacing delays (IVV) for the plurality of electrodes of the multi-pole lead based the preliminary interventricular pacing delays (VVT); means for determining an order by which the electrodes of the multi-pole lead are to be used to deliver a set of multi-site pacing pulses, with the order determined based on the interelectrode pacing time delays (IVV); and means for delivering multi-site ventricular pacing by delivering a set of pulses using the electrodes of the multi-pole lead.
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Specification