Method and apparatus for control of cardiac therapy using non-invasive hemodynamic sensor
First Claim
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1. A system adapted to be coupled to a body having external appendages including a finger, a toe, an ear, an arm, and a wrist, the system comprising:
- a non-invasive hemodynamic sensing device including at least a portion configured to be attached to one of the external appendages, the non-invasive hemodynamic sensing device configured to sense a hemodynamic signal indicative of at least a heart rate, produce hemodynamic data associated with the hemodynamic signal, and transmit the hemodynamic data; and
an implantable medical device configured to be communicatively coupled to the non-invasive hemodynamic sensing device via a wireless communication link to receive the hemodynamic data, the implantable medical device including;
a neural stimulation circuit configured to deliver neural stimulation pulses; and
a neural stimulation controller configured to control the delivery of the neural stimulation pulses using one or more neural stimulation parameters tier treating a cardiovascular disorder, the neural stimulation controller including a stimulation parameter adjustment module configured to adjust the one or more neural stimulation parameters using one or more cardiac performance parameters, the stimulation parameter adjustment module configured to compare a heart rate parameter representative of the heart rate to a predetermined threshold heart rate and adjust the delivery of the neural stimulation pulses using an outcome of the comparison,wherein one of the non-invasive hemodynamic sensing device and the implantable medical device includes a parameter generator configured to produce the one or more cardiac performance parameters including the heart rate parameter using the hemodynamic data.
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Abstract
A cardiac rhythm management (CRM) system includes a non-invasive hemodynamic sensing device and an implantable medical device to sense a hemodynamic signal and derive one or more cardiac performance parameters from the hemodynamic signal. The non-invasive hemodynamic sensing device includes at least a portion configured for external attachment to a body in which the implantable medical device is implanted. The one or more cardiac performance parameters are used for various diagnostic, monitoring, and therapy control purposes.
91 Citations
20 Claims
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1. A system adapted to be coupled to a body having external appendages including a finger, a toe, an ear, an arm, and a wrist, the system comprising:
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a non-invasive hemodynamic sensing device including at least a portion configured to be attached to one of the external appendages, the non-invasive hemodynamic sensing device configured to sense a hemodynamic signal indicative of at least a heart rate, produce hemodynamic data associated with the hemodynamic signal, and transmit the hemodynamic data; and an implantable medical device configured to be communicatively coupled to the non-invasive hemodynamic sensing device via a wireless communication link to receive the hemodynamic data, the implantable medical device including; a neural stimulation circuit configured to deliver neural stimulation pulses; and a neural stimulation controller configured to control the delivery of the neural stimulation pulses using one or more neural stimulation parameters tier treating a cardiovascular disorder, the neural stimulation controller including a stimulation parameter adjustment module configured to adjust the one or more neural stimulation parameters using one or more cardiac performance parameters, the stimulation parameter adjustment module configured to compare a heart rate parameter representative of the heart rate to a predetermined threshold heart rate and adjust the delivery of the neural stimulation pulses using an outcome of the comparison, wherein one of the non-invasive hemodynamic sensing device and the implantable medical device includes a parameter generator configured to produce the one or more cardiac performance parameters including the heart rate parameter using the hemodynamic data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for delivering electrical stimulation to a patient, the method comprising:
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sensing a hemodynamic signal indicative of at least a heart rate using a non-invasive hemodynamic sensing device; producing hemodynamic data associated with the hemodynamic signal; transmitting the hemodynamic data to an implantable medical device through a wireless communication link; producing one or more cardiac performance parameters including a heart rate parameter representative of the heart rate using the hemodynamic data using one of the non-invasive hemodynamic sensing device and the implantable medical device; adjusting one or more neural stimulation parameters using the one or more cardiac performance parameters using a stimulation controller of the implantable medical device; controlling delivery of neural stimulation pulses using the one or more stimulation parameters, including comparing the heart rate parameter representative to a predetermined threshold heart rate and adjusting the delivery of the neural stimulation pulses using an outcome of the comparison; and delivering the neural stimulation pulses from the implantable medical device. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification