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US 8,788,039 B1Granted
Implantable cardiac stimulation device providing bichamber and multichamber pacing timing and method
AssigneePacesetter, Inc.
InventorRobert J. Graumann
Life of this patent
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Abstract
An implantable cardiac stimulation device provides bichamber pacing. In accordance with a first embodiment, the device varies the interchamber pacing delay responsive to either sensed intrinsic activity or sensor measured activity of the patient. In another embodiment, the device times separate and independent AV intervals for providing pacing pulses to the right and left chambers.
Claims10
An implantable cardiac stimulation device comprising:
- an activity sensor that senses an activity level of a patient, wherein the activity level of the patient corresponds to an exercise state of the patient;
- a pulse generator that provides a first pacing pulse to a first chamber of a heart and a second pacing pulse to a second chamber of the heart, the first and second chambers being corresponding chambers and the first and second pacing pulses being separated in time by an interchamber pacing delay;
- and
- a timer that times the interchamber pacing delay, the interchamber pacing delay being related to the activity level of the patient sensed by the activity sensor, wherein the first and second chambers are a right ventricle and left ventricle respectively of the heart and wherein the interchamber pacing delay is an interventricular pacing delay, and wherein the timer automatically adjusts the interchamber pacing delay based on changes in the patient activity level.
1 more element
An implantable cardiac stimulation device comprising:
- an activity sensor that senses an activity level of a patient, wherein the activity level of the patient corresponds to an exercise state of the patient;
- a timing control that determines a pacing rate responsive to the sensed patient activity level;
- a pulse generator that provides a first pacing pulse to a first chamber of a heart and a second pacing pulse to a second chamber of the heart, the first and second chambers being corresponding chambers and the first and second pacing pulses being separated in time by an interchamber pacing delay;
- and
- a timer that times the interchamber pacing delay, the interchamber pacing delay being related to the pacing rate, wherein the corresponding chambers are ventricles of the heart and wherein the interchamber pacing delay is an interventricular pacing delay, and wherein the timer automatically adjusts the interchamber pacing delay based on changes in the patient activity level.
2 more elements
Dependencies are inferred from the claim text.