Signal quality monitoring and control for a medical device system
First Claim
1. In a medical device system having a plurality of monitoring elements, a method for detecting poor signal quality comprising the steps of:
- (a) receiving a neurological signal from one of the monitoring elements;
(b) processing the received signal to generate a plurality of data points for the signal in a moving time window;
(c) detecting that the received signal has poor signal quality by determining that an amount of the data points exhibiting poor signal quality within the moving time window has exceeded a predetermined threshold; and
(d) ignoring the received signal experiencing poor signal quality in signal processing.
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Accused Products
Abstract
Method and apparatus for detecting possible interference in a neurological signal received from a monitoring element of a medical device system. The monitoring element monitors a condition or a symptom of a nervous system disorder being treated and provides a neurological signal to the medical device system for purposes of providing closed-loop feedback control. The system analyzes various parameters of the received signal by taking instantaneous measurements of data points in moving window and thereby determining whether the signal is of poor quality. If the signal is of determined poor quality, it is removed from consideration in the closed-loop feedback control system until it is determined that the signal quality has sufficiently been restored.
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Citations
37 Claims
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1. In a medical device system having a plurality of monitoring elements, a method for detecting poor signal quality comprising the steps of:
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(a) receiving a neurological signal from one of the monitoring elements;
(b) processing the received signal to generate a plurality of data points for the signal in a moving time window;
(c) detecting that the received signal has poor signal quality by determining that an amount of the data points exhibiting poor signal quality within the moving time window has exceeded a predetermined threshold; and
(d) ignoring the received signal experiencing poor signal quality in signal processing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 35, 36, 37)
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18. A medical device system for managing a nervous system disorder and capable of detecting poor signal quality comprising in combination:
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(a) at least one monitoring element, each generating a neurological signal of a sensed neurological condition; and
(b) computer executable instructions for performing the steps of (i) generating a plurality of instantaneous data points of the received neurological signal for a moving time window;
(ii) detecting that the received signal has poor signal quality by determining that an amount of the data points exhibiting poor signal quality within the time window has exceeded a predetermined threshold; and
(iii) ignoring the received signal experiencing poor signal quality in signal processing. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification