Implantable cardiac stimulation device and method which optimizes pacing effectiveness
First Claim
1. An implantable cardiac stimulation device which optimizes pacing effectiveness of a patient'"'"'s heart comprising:
- a pulse generator configured to;
deliver right and left pacing pulses to corresponding respective right and left chambers of the heart with a selected pacing delay between the delivery of the right pacing pulse and the delivery of the left pacing pulse within a continuum from left chamber pacing alone, to the delayed pacing between right chamber and left chamber, to simultaneous right chamber and left chamber pacing, and to right chamber pacing alone;
a sensor that senses a parameter associated with pacing effectiveness; and
a control circuit that selects the pacing delay which maximizes the sensed parameter, wherein the control circuit includes a processor programmed to cause the pulse generator to deliver the right and left pacing pulses with varying pacing delays until a maximum of the parameter is sensed by the sensor.
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Accused Products
Abstract
An implantable cardiac stimulation device and method optimizes pacing effectiveness of a patient'"'"'s heart. A pulse generator delivers right and left pacing pulses to corresponding right and left chambers of the heart with a selected pacing delay between the right pacing pulse and the left pacing pulse wherein the selected pacing delay is within a continuum from left chamber pacing only, to simultaneous right and left chamber pacing, and to right chamber pacing only. A sensor senses a parameter, such as ventricular pressure, associated with pacing effectiveness. A control circuit selects the pacing delay, which maximizes the sensed parameter.
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Citations
24 Claims
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1. An implantable cardiac stimulation device which optimizes pacing effectiveness of a patient'"'"'s heart comprising:
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a pulse generator configured to;
deliver right and left pacing pulses to corresponding respective right and left chambers of the heart with a selected pacing delay between the delivery of the right pacing pulse and the delivery of the left pacing pulse within a continuum from left chamber pacing alone, to the delayed pacing between right chamber and left chamber, to simultaneous right chamber and left chamber pacing, and to right chamber pacing alone;
a sensor that senses a parameter associated with pacing effectiveness; and
a control circuit that selects the pacing delay which maximizes the sensed parameter, wherein the control circuit includes a processor programmed to cause the pulse generator to deliver the right and left pacing pulses with varying pacing delays until a maximum of the parameter is sensed by the sensor. - View Dependent Claims (2)
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3. An implantable cardiac stimulation device for optimizing pacing therapy delivered to a patients heart, the device comprising:
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stimulation means for applying right and left stimulation pulses to corresponding respective right and left chambers of the heart, the stimulation pulses having a selected relative delay in a continuous range of relative delays from left chamber stimulation only, to synchronous right and left chamber stimulation, and to right chamber stimulation only;
sensing means for sensing a parameter associated with pacing therapy effectiveness following each application of the right and left stimulation pulses; and
control means responsive to the sensing means for selecting the relative delay corresponding to a maximum value of the sensed parameter, wherein the control means includes means for causing the stimulation means to apply the right and left stimulation pulses with varying relative delays until a maximum of the parameter is sensed by the sensing means. - View Dependent Claims (4)
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5. In an implantable cardiac stimulation device, a method of optimizing pacing therapy provided to a patients heart, the method comprising:
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applying right and left stimulation pulses to corresponding respective right and left chambers of the heart with a selected delay between application of the right and left simulation pulses within a continuum from left chamber capture only, to simultaneous right and left chamber stimulation, and to right chamber capture only;
sensing a parameter associated with pacing effectiveness;
selecting the selected delay responsive to the sensed parameter being a maximum;
wherein the apply step includes applying the right and left stimulation pulses with varying delays until a maximum of the parameter is sensed. - View Dependent Claims (6)
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7. An implantable cardiac stimulation device which optimizes pacing effectiveness of a patient'"'"'s heart comprising:
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a pulse generator configured to;
deliver right and left pacing pulses to corresponding respective right and left chambers of the heart with a selected pacing delay between the delivery of the right pacing pulse and the delivery of the left pacing pulse within a continuum from left chamber pacing alone, to the delayed pacing between right chamber and left chamber, to simultaneous right chamber and left chamber pacing, and to right chamber pacing alone;
a sensor that senses a parameter associated with pacing effectiveness; and
a control circuit that selects the pacing delay which maximizes the sensed parameter, wherein the control circuit includes a processor programmed to initiate pacing delay selection at spaced apart times. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An implantable cardiac stimulation device for optimizing pacing therapy delivered to a patients heart, the device comprising:
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stimulation means for applying right and left stimulation pulses to corresponding respective right and left chambers of the heart, the stimulation pulses having a selected relative delay in a continuous range of relative delays from left chamber stimulation only, to synchronous right and left chamber stimulation, and to right chamber stimulation only;
sensing means for sensing a parameter associated with pacing therapy effectiveness following each application of the right and left stimulation pulses; and
control means responsive to the sensing means for selecting the relative delay corresponding to a maximum value of the sensed parameter, wherein the circuit means includes initiating means for initiating a delay selection at spaced apart times. - View Dependent Claims (14, 15, 16, 17, 18)
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19. In an implantable cardiac stimulation device, a method of optimizing pacing therapy provided to a patient'"'"'s heart, the method comprising:
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applying right and left stimulation pulses to corresponding respective right and left chambers of the heart with a selected delay between application of the right and left stimulation pulses within a continuum from left chamber capture only, to simultaneous right and left chamber stimulation, and to right chamber capture only;
sensing a parameter associated with pacing effectiveness;
selecting the selected delay responsive to the sensed parameter being a maximum; and
initiating a delay selection at spaced apart times. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification