SYSTEMS AND METHODS FOR PATIENT SPECIFIC ADAPTABLE TELEMONITORING ALERTS

• US 20090088606A1
• Filed: 09/28/2007
• Published: 04/02/2009
• Est. Priority Date: 09/28/2007
• Status: Abandoned Application

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Cuddihy, Paul E., Osborn, Mark D.
• Application Number:
  US11/863,529
• Publication Number:
  US 20090088606A1
• Time in Patent Office: Days
• US Class Current: 600/300
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/746 Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms alarms per se G08B
• CPC Class Codes: G16H 15/00 ICT specially adapted for medical reports, e.g. generation or transmission thereof
• CPC Class Codes: G16H 40/67 for remote operation
• CPC Class Codes: G16H 50/20 for computer-aided diagnosis, e.g. based on medical expert systems
• CPC Class Codes: G16H 50/50 for simulation or modelling of medical disorders

Abstract

A system and method for determining a reference baseline of a patient and measuring trend shifts in physiological data to generate alerts acquires and receives physiological data from a patient under observation. Initial physiological data is received during a lock-in period and monitored physiological data is received during a diagnosis period. Shifts in the physiological data are measured by comparing the monitored physiological data to the initial physiological data. An alert is generated for shifts that exceed at least one of a pre-determined size and rate (i.e., a “threshold value”).

Claims

1. A telemonitoring alert system for patient care comprising:

a monitoring device configured to acquire physiological data from a patient under observation; and

a computer in communication with the monitoring device to receive physiological data therefrom, the computer programmed to;

receive initial physiological data from the monitoring device during a lock- in period;

receive monitored physiological data from the monitoring device during a diagnosis period;

measure shifts in the physiological data by comparing the monitored physiological data to the initial physiological data; and

generate an alert for shifts that exceed at least one of a pre-determined size and rate.

2. The telemonitoring alert system of claim 1 wherein the computer is further programmed to determine a reference baseline from the initial physiological data.

3. The telemonitoring alert system of claim 2 wherein the computer is further programmed to perform an outlier removal to exclude specified initial physiological data in determining the reference baseline.

4. The telemonitoring alert system of claim 2 wherein the computer is further programmed to:

incorporate the monitored physiological data into the reference baseline; and

determine an updated reference baseline from the monitored physiological data and the initial physiological data.

5. The telemonitoring alert system of claim 2 wherein the computer is further programmed to:

determine if the initial physiological data is sufficient to determine the reference baseline;

receive supplemental physiological data from the monitoring device during a supplemental time period if the initial physiological data is not sufficient;

set a reminder for the end of the supplemental time period to determine if the supplemental physiological data is sufficient to determine the reference baseline.

6. The telemonitoring alert system of claim 5 wherein the computer is further programmed to:

compare the supplemental physiological data to the initial physiological data;

determine shifts in the physiological data by comparing the supplemental physiological data to the initial physiological data.

7. The telemonitoring alert system of claim 1 wherein the computer is further programmed to determine at least one of a mean, a standard deviation, a variance, a range, an interquartile range, a moving average value, and an average absolute deviation for each of the initial physiological data and the monitored physiological data.

8. The telemonitoring alert system of claim 7 wherein the computer is further programmed to compare at least one of the mean, standard deviation, the variance, the range, the interquartile range, the moving average value, and the average absolute deviation of the monitored physiological data to at least one of the mean, the standard deviation, the variance, the range, the interquartile range, the moving average value, and the average absolute deviation of the initial physiological data.

9. The telemonitoring alert system of claim 1 wherein the computer is further programmed to select a length of the lock-in period and a length of the diagnosis period.

10. The telemonitoring alert system of claim 1 wherein the physiological data further comprises data related to at least one physiological parameter, wherein the physiological parameters comprises one of blood pressure, weight, pulse, and saturation of peripheral oxygen (Spo2).

11. The telemonitoring alert system of claim 1 wherein the computer is further programmed to define the at least one of a pre-determined size and rate as at least one of a percentage change, a rate of change, and a difference value.

12-22. -22. (canceled)

23. A monitoring and determining system comprising:

a monitoring device configured to measure at least one physiological parameter from a patient;

a computer in communication with the monitoring device to receive one of the at least one physiological parameter and physiological data therefrom, the computer programmed to;

receive a lock-in period selection;

acquire physiological data from the monitoring device for the selected lock-in period;

establish a reference baseline for the patient based on the acquired physiological data;

receive a diagnosis period selection;

acquire physiological data from the monitoring device for the selected diagnosis period;

perform at least one statistical algorithm on the acquired physiological data for the selected diagnosis period, thereby to provide statistical analysis of the acquired physiological data, wherein the at least one statistical algorithm is one of mean, standard deviation, variance, range, interquartile range, moving average value, and average absolute deviation;

compare the physiological data for the lock-in period to the statistical analysis of the physiological data for the diagnosis period;

generate an alarm when a threshold limit is crossed, based on the comparison.

24. The system of claim 23, wherein the diagnosis period is shorter than the lock-in period.

25. The system of claim 23, wherein the threshold limit is at least one of:

a difference value between average values, an absolute difference value between average values, a rate of change between average values, and a percentage change between average values.

26. A system for patient care comprising:

a computer configured to receive at least one physiological parameter from one of a patient and a monitoring device, the computer programmed to;

receive a lock-in period selection;

acquire physiological data for the selected lock-in period;

establish a reference baseline for the patient based on the acquired physiological data;

receive a diagnosis period selection;

acquire physiological data for the selected diagnosis period;

perform at least one statistical algorithm on the acquired physiorogical data for the selected diagnosis period, thereby to provide statistical analysis of the acquired physiological data, wherein the at least one statistical algorithm is one of mean, standard deviation, variance, range, interquartile range, moving average value, average absolute deviation, moving average convergence/divergence, and non-deterministic algorithms;

compare the physiological data for the lock-in period to the statistical analysis of the physiological data for the diagnosis period;

generate an alarm when a threshold limit is crossed, based on the comparison, wherein the threshold limit is at least one of;

a difference value between average values, an absolute difference value between average values, a rate of change between average values, and a percentage change between average values.