Wireless patient monitoring system and method

• US 10,517,478 B2
• Filed: 01/04/2018
• Issued: 12/31/2019
• Est. Priority Date: 02/11/2016
• Status: Active Grant

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Pekander, Otto Valtteri
• Primary Examiner(s): Kim, Kevin
• Application Number:
  US15/862,125
• Publication Number:
  US 20180153404A1
• Time in Patent Office: 726 Days
• CPC Class Codes: A61B 5/0015 characterised by features of the telemetry system
• CPC Class Codes: A61B 5/0022 Monitoring a patient using a global network, e.g. telephone networks, internet
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/02 Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
• CPC Class Codes: A61B 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/145 Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissuemeasuring of blood pressure or blood flow A61B5/02; non-radiation detecting or locating of foreign bodies in blood A61B5/06
• CPC Class Codes: A61B 5/25 Bioelectric electrodes therefor
• CPC Class Codes: G16H 40/67 for remote operation
• CPC Class Codes: H04M 9/00 Arrangements for interconnection not involving centralised switching
• CPC Class Codes: H04Q 2209/43 using wireless personal area networks [WPAN], e.g. 802.15, 802.15.1, 802.15.4, Bluetooth or ZigBee
• CPC Class Codes: H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Abstract

A method of monitoring a patient includes operating each of one or more wireless sensing devices to measure a physiological parameter from a patient and wirelessly transmit a parameter dataset, and receiving the one or more parameter datasets from the one or more wireless sensing devices. The method further includes calculating a patient condition index based on the one or more parameter datasets, wherein the patient condition index is an indicator of stability of the one or more physiological parameters. A measurement interval is then assigned for each wireless sensing device based on the patient condition index, and each wireless sensing device is operated according to the respective measurement interval.

Claims

1. A patient monitoring system comprising:

a first wireless sensing device configured to measure at least a first physiological parameter from a patient and wirelessly transmit a first parameter dataset based on the first physiological parameter measurements;

a second wireless sensing device configured to measure at least a second physiological parameter from a patient and wirelessly transmit a second parameter dataset based on the second physiological parameter measurements, wherein the second physiological parameter is a different physiological parameter than the first physiological parameter;

a receiver that receives the first parameter dataset and the second parameter dataset;

a processor;

a monitoring regulation module executable on the processor to;

calculate a patient condition index based on the first parameter dataset and the second parameter dataset, wherein a higher weight is assigned to one of the first parameter dataset or the second parameter dataset, and wherein the patient condition index is an indicator of stability of the first physiological parameter and the second physiological parameter;

assign a first measurement interval for the first physiological parameter and a second measurement interval for the second physiological parameter based on the patient condition index; and

operate at least the first wireless sensing device to measure the first physiological parameter at the first measurement interval.

2. The patient monitoring system of claim 1, wherein the monitoring regulation module is further executable on the processor to operate the second wireless sensing device to measure the second physiological parameter at the second measurement interval, wherein the second measurement interval is different than the first measurement interval.

3. The patient monitoring system of claim 1, wherein the monitoring regulation module is further executable on the processor to determine that the patient is stable based on the patient condition index, power down the second wireless sensing device, and then determine a secondary indicia of the second physiological parameter based on the first parameter dataset instead of operating the second wireless sensing device at the second measurement interval.

4. The patient monitoring system of claim 1, wherein the monitoring regulation module is further executable on the processor to select a key parameter based on input from a clinician identifying one of the first physiological parameter and the second physiological parameter as a key parameter, and then to calculate the patient condition index by assigning the higher weight to the key parameter.

5. The patient monitoring system of claim 1, wherein the monitoring regulation module is further executable on the processor to select a key parameter based on a diagnosis, a medical history, at least one and/or previous parameter dataset for the patient, and then to calculate the patient condition index by assigning the higher weight to the key parameter.

6. The patient monitoring system of claim 1, wherein the monitoring regulation module is further executable on the processor to calculate a first parameter-specific index for the first physiological parameter and a second parameter-specific index for the second physiological parameter, and then calculate the patient condition index based on the first and second parameter-specific indexes.

7. The patient monitoring system of claim 1, wherein the monitoring regulation module is further executable on the processor to access a first minimum measurement interval for the first wireless sensing device and a second minimum measurement interval from the second wireless sensing device, wherein the first measurement interval is not less than the first minimum measurement interval and the second measurement interval is not less than the second minimum measurement interval.

8. A method of monitoring a patient, the method comprising:

operating a first wireless sensing device to measure a first physiological parameter from a patient and wirelessly transmit a first parameter dataset based on the first physiological parameter measurements;

operating a second wireless sensing device to measure a second physiological parameter from the patient and wirelessly transmit a second parameter dataset based on the second physiological parameter measurements, wherein the second physiological parameter is a different physiological parameter than the first physiological parameter;

receiving the first parameter dataset and the second parameter dataset at a receiver;

calculating a patient condition index based on the first parameter dataset and the second parameter dataset, wherein the patient condition index is an indicator of stability of the first physiological parameter and the second physiological parameter, and wherein the patient condition index is either based equally on both the first parameter dataset and the second parameter dataset or wherein a higher weight is assigned to one of the first parameter dataset or the second parameter dataset;

assigning, based on the patient condition index, a first measurement interval for the first physiological parameter and a second measurement interval for the second physiological parameter; and

operating at least the first wireless sensing device according to the first measurement interval.

9. The method of claim 8, further comprising assigning differing weights to the first parameter dataset and the second parameter dataset, and calculating the patient condition index based further on the differing weights.

10. The method of claim 8, further comprising calculating a first parameter-specific index for the first physiological parameter based on at least the first parameter data and calculating a second parameter-specific index for the second physiological parameter based on at least the second parameter data, and calculating the patient condition index based on the first and second parameter-specific indexes.

11. The method of claim 8, further comprising operating the second wireless sensing device to measure the second physiological parameter at the second measurement interval, wherein the second measurement interval is different than the first measurement interval.

12. The method of claim 8, further comprising determining that the patient is stable based on the patient condition index, and then determining a secondary indicia of the second physiological parameter based on the first parameter dataset instead of operating the second wireless sensing device.

13. The method of claim 12, further comprising calculating the patient condition index based on the first parameter dataset and the second parameter dataset when the second wireless sensing device is operating, and determining the patient condition index based on the first parameter dataset and the secondary indicia of the second physiological parameter when the second wireless sensing device is not operating.

14. The method of claim 13, wherein the first physiological parameter is a key parameter, and wherein the patient condition index assigns higher weight to the first parameter dataset than the second parameter dataset or the secondary indicia of the second physiological parameter.

15. The method of claim 14, further comprising operating the second wireless sensing device if at least one of the first parameter dataset is not within a threshold range, the secondary indicia is not within a threshold range, and the patient condition index is not within a threshold range.

16. A method of monitoring a patient, the method comprising:

operating a first wireless sensing device to measure a first physiological parameter from a patient and wirelessly transmit a first parameter dataset based on the first physiological parameter measurements;

operating a second wireless sensing device to measure a second physiological parameter from the patient and wirelessly transmit a second parameter dataset based on the second physiological parameter measurements, wherein the second physiological parameter is a different physiological parameter than the first physiological parameter;

receiving the first parameter dataset and the second parameter dataset at a receiver;

calculating a patient condition index based on the first parameter dataset and the second parameter dataset, wherein the patient condition index is an indicator of stability of the first physiological parameter and the second physiological parameter;

determining that the patient is stable based on the patient condition index;

assigning, based on the patient condition index, a first measurement interval for the first physiological parameter;

operating at least the first wireless sensing device according to the first measurement interval; and

determining a secondary indicia of the second physiological parameter based on the first parameter dataset instead of operating the second wireless sensing device.

17. The method of claim 16, further comprising calculating the patient condition index based on the first parameter dataset and the second parameter dataset when the second wireless sensing device is operating, and determining the patient condition index based on the first parameter dataset and the secondary indicia of the second physiological parameter when the second wireless sensing device is not operating.

18. The method of claim 17, wherein the first physiological parameter is a key parameter, and wherein the patient condition index assigns higher weight to the first parameter dataset than the second parameter dataset or the secondary indicia of the second physiological parameter.