Physiologic event monitoring device having robust internal control
First Claim
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1. An implantable device for recording physiological waveforms, the device comprising:
- electronic circuitry for sampling a physiological waveform of a patient;
memory for storing physiological data;
a processor under the control of executable instructions for processing samples of the physiological waveform, wherein the processor is programmed (i) to detect a predefined event in the physiological waveform by analyzing the physiological waveform against multiple parameters with each of the multiple parameters applied to a different segment of the physiological waveform and (ii) to store physiological data in the memory in response to detection of the predefined event, wherein the processor executes a diagnostic routine to identify locations in the memory that consume an amount of current above a threshold value during write memory transactions and the processor avoids storing the physiological data in the identified locations; and
a wireless communication module for communicating with a device external to the patient after the implantable device has been implanted in the patient.
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Abstract
Categories are established for use in physiological monitoring devices and these categories are prioritized such that data indicative of a critical event self-triggers a communication to an external receiver for the purpose of re-transmitting the critical data for use by a clinician. The categories can be established by the clinician and, if desired, the precise monitored data parameters can be assigned to specific categories. Far-field transmission can be used to send certain stored data to an external receiver, provision is made for externally charging the device batteries.
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Citations
14 Claims
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1. An implantable device for recording physiological waveforms, the device comprising:
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electronic circuitry for sampling a physiological waveform of a patient; memory for storing physiological data; a processor under the control of executable instructions for processing samples of the physiological waveform, wherein the processor is programmed (i) to detect a predefined event in the physiological waveform by analyzing the physiological waveform against multiple parameters with each of the multiple parameters applied to a different segment of the physiological waveform and (ii) to store physiological data in the memory in response to detection of the predefined event, wherein the processor executes a diagnostic routine to identify locations in the memory that consume an amount of current above a threshold value during write memory transactions and the processor avoids storing the physiological data in the identified locations; and a wireless communication module for communicating with a device external to the patient after the implantable device has been implanted in the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification