IMPLANTABLE MEDICAL DEVICE FOR CARDIAC ELECTRICAL STIMULATION
First Claim
1. A method of reducing a patient'"'"'s heart rate or blood pressure, comprising:
- detecting the patient'"'"'s atrial and ventricular depolarizations having associated refractory periods thereafter;
responsive to detecting an occurrence of a ventricular depolarization following a preceding atrial depolarization, delivering a stimulus pulse to the patient'"'"'s atrial and/or nodal tissue within the associated refractory period of the ventricle but outside of an associated refractory period of the stimulated atrial an/or nodal tissue.
2 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for reducing a patient'"'"'s heart rate or blood pressure. The apparatus provides stimulation to the patient'"'"'s atrial and/or nodal tissue within the associated refractory period of the ventricle but outside of an associated refractory period of the stimulated atrial an/or nodal tissue, responsive to detecting an occurrence of a ventricular depolarization following a preceding atrial depolarization.
The apparatus may define a time window following the ventricular depolarization, following the atrial depolarization or determined based upon the timing of both the atrial and ventricular depolarizations. The stimulus may be delivered during or on expiration of the defined time window. The duration of the time window may be pre-set or determined based upon measurements of the patient'"'"'s refractory periods.
-
Citations
27 Claims
-
1. A method of reducing a patient'"'"'s heart rate or blood pressure, comprising:
-
detecting the patient'"'"'s atrial and ventricular depolarizations having associated refractory periods thereafter; responsive to detecting an occurrence of a ventricular depolarization following a preceding atrial depolarization, delivering a stimulus pulse to the patient'"'"'s atrial and/or nodal tissue within the associated refractory period of the ventricle but outside of an associated refractory period of the stimulated atrial an/or nodal tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. An apparatus for reducing a patient'"'"'s heart rate or blood pressure, comprising:
-
means for detecting the patient'"'"'s atrial and ventricular depolarizations having associated refractory periods thereafter; means responsive to detecting an occurrence of a ventricular depolarization following a preceding atrial depolarization, for delivering a stimulus pulse to the patient'"'"'s atrial and/or nodal tissue within the associated refractory period of the ventricle but outside of an associated refractory period of the stimulated atrial an/or nodal tissue. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 26, 27)
-
-
25. An apparatus for reducing a patient'"'"'s heart rate or blood pressure, comprising:
-
Sense amplifiers responsive to atrial and ventricular depolarizations having associated refractory periods thereafter; a generator providing stimulus pulses; and circuitry triggering the pulse generator responsive to detection of an occurrence of a ventricular depolarization following a preceding atrial depolarization, to deliver a stimulus pulse to the patient'"'"'s atrial and/or nodal tissue within the associated refractory period of the ventricle but outside of an associated refractory period of the stimulated atrial an/or nodal tissue.
-
Specification