System And Method For Evaluating Physiological Parameter Data
First Claim
1. A method of evaluating physiological parameter data, comprising:
- monitoring a patient to produce a signal comprising a sequence of numerical values for a physiological parameter over a time period;
calculating an index based at least in part upon the signal;
comparing the calculated index to a reported index, and if the calculated index is greater than the reported index, setting the reported index to the value of the calculated index;
calculating a modulation of the signal;
comparing the modulation to a previous value of the modulation of the signal to identify a trend in the modulation, and if the trend corresponds to an undesirable condition, using a first function capable of increasing the reported index; and
providing an indication of a physiological status based at least in part upon the reported index.
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Accused Products
Abstract
Embodiments disclosed herein may include systems and methods for evaluating physiological parameter data. Embodiments of methods may include monitoring a patient to produce a signal comprising a sequence of numerical values for a physiological parameter over a time period, calculating an index from the signal, comparing the index to a reported index, and if the index is greater than the reported index, setting the reported index to the value of the index. Embodiments of methods may include calculating a modulation of the signal, comparing the modulation to a previous value of the modulation to identify a trend in the modulation and if the trend corresponds to an undesirable condition, using a first function to increase the reported index. Embodiments of methods may include providing an indication of a physiological status based on the reported index.
106 Citations
20 Claims
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1. A method of evaluating physiological parameter data, comprising:
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monitoring a patient to produce a signal comprising a sequence of numerical values for a physiological parameter over a time period; calculating an index based at least in part upon the signal; comparing the calculated index to a reported index, and if the calculated index is greater than the reported index, setting the reported index to the value of the calculated index; calculating a modulation of the signal; comparing the modulation to a previous value of the modulation of the signal to identify a trend in the modulation, and if the trend corresponds to an undesirable condition, using a first function capable of increasing the reported index; and providing an indication of a physiological status based at least in part upon the reported index. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A medical device, comprising:
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a microprocessor configured to process a signal associated with at least one physiological parameter of a patient; and a memory configured to store machine readable instructions which, if executed, are capable of causing the microprocessor to; calculate an index from the signal; compare the calculated index to a reported index, and if the calculated index is greater than the reported index, set the reported index to the value of the calculated index; calculate a modulation of the numerical signal; compare the modulation to a previous value of the modulation to identify a trend in the modulation, and if the trend corresponds to an undesirable condition, increase the reported index using a first function; and provide an indication of a physiological status based on the reported index. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method of evaluating physiological parameter data, comprising:
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monitoring a patient to produce a signal comprising a sequence of numerical values for a physiological parameter over a time period; detecting potential reciprocations by detecting potential reciprocation peaks and nadirs in the sequence of numerical values; determining whether the potential reciprocations are qualified by comparing metrics of the potential reciprocations with a set of limits and performing a linear qualification function; tracking a number of qualified reciprocations identified within a window of time and calculating an index when the number of qualified reciprocations identified within the window of time reaches or surpasses a limit; comparing the calculated index to a reported index, and if the calculated index is greater than the reported index, setting the reported index to the value of the calculated index; and providing an indication of a physiological status based at least in part upon the reported index. - View Dependent Claims (18, 19, 20)
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Specification