Tactical clinical evaluation of patient monitor events

• US 9,615,784 B2
• Filed: 12/15/2014
• Issued: 04/11/2017
• Est. Priority Date: 12/15/2014
• Status: Active Grant

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Fuller, Scott Allan, Treacy, Stephen Thomas
• Primary Examiner(s): Timory, Kabir A
• Application Number:
  US14/570,431
• Publication Number:
  US 20160171865A1
• Time in Patent Office: 848 Days
• CPC Class Codes: A61B 5/18 for vehicle drivers or machine operators
• CPC Class Codes: A61B 5/363 Detecting tachycardia or bradycardia
• CPC Class Codes: A61B 5/7455 characterised by tactile indication, e.g. vibration or electrical stimulation
• 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 40/20 for the management or administration of healthcare resources or facilities, e.g. managing hospital staff or surgery rooms
• CPC Class Codes: G16H 40/67 for remote operation

Abstract

In the present invention, a method and accompanying system for evaluating alarm events generated by patient monitors includes the steps of receiving a plurality of alarm events and associated alarm event data from one or more patient monitors at a central control unit, storing the alarm event data in an electronic storage medium, calculating an acuity score for the patient monitor from the alarm event data and a customizable rule set input into and stored in the control unit, the rule set applied to the alarm event data and comparing the calculated acuity score to a threshold value for the acuity score.

Claims

1. A method of evaluating alarm events generated by patient monitors, the method comprising the steps of:

a) receiving a plurality of alarm events and associated alarm event data from one or more patient monitors at a central control unit;

b) storing the alarm event data in an electronic storage medium;

c) selecting a time interval for performing the step of calculating an acuity score;

d) calculating an acuity score for the patient monitor from the alarm event data and a customizable rule set input into and stored in the control unit, the customizable rule set applied to the alarm event data relevant to a care area in which the patient monitors are located;

e) comparing the calculated acuity score to a threshold value for the acuity score;

f) transmitting an alert if the acuity score exceeds the stored threshold value;

g) re-calculating the acuity score upon expiration of each time interval; and

h) transmitting an alert if the re-calculated acuity score exceeds the stored threshold value,

wherein the step of calculating the acuity score comprises applying a weighting factor from the customizable rule set to the alarm event data, and

wherein the step of applying a weighting factor to the alarm event data comprises;

i) increasing a significance of a first portion of the alarm event data; and

ii) decreasing significance of second portion of the alarm event data.

2. The method of claim 1 further comprising the step of selecting a determination time period over which the stored alarm event data is received for calculation of the acuity score.

3. The method of claim 2 wherein the time interval and the determination time period are not equal.

4. The method of claim 1 wherein the weighting factor is a factor applied as a result of the severity of the alarm event.

5. The method of claim 1 wherein the weighting factor is a factor applied as a result of a duration of the alarm event.

6. The method of claim 1 wherein the weighting factor is a factor applied as a result of a type of the alarm event.

7. The method of claim 1 wherein the weighting factor is a factor applied as a result of when the alarm event occurred in a determination time period.

8. The method of claim 7 wherein the step of applying the weighting factor to the alarm event data comprises more significantly weighting alarm events occurring more recently within the determination time period.

9. The method of claim 1 wherein the step of calculating the acuity score comprises:

a) calculating a customized alarm event acuity score in conjunction with the customized rule set;

b) calculating a customized parameter alarm event acuity score in conjunction with the customized rule set; and

c) summing the customized alarm event acuity score and the customized parameter alarm event acuity score to form a composite acuity score.

10. The method of claim 9 further comprising the steps of:

a) generating a report including the calculated composite acuity score; and

b) transmitting the report to a display device for viewing by a clinician.

11. The method of claim 9 further comprising the steps of:

a) calculating a customized technical alarm event acuity score in conjunction with the customized rule set; and

b) summing the customized alarm event acuity score, the customized parameter alarm event acuity score and the customized technical alarm event acuity score in conjunction with the customized rule set to form a composite acuity score.

12. A method of evaluating a patient condition from alarm events generated by patient monitors, the method comprising the steps of:

a) inputting a customized rule set into a central control unit including at least one weighting factor applied to alarm event data relevant to a care area in which the patient monitors are located;

b) receiving and storing at a central monitor a notification of an alarm event and associated alarm event data from a patient monitor;

c) selecting a time interval for performing the step of calculating an acuity score;

d) calculating an acuity score from the alarm event data and the customized rule set;

e) comparing the acuity score to an acuity score threshold value to determine a patient condition; and

f) transmitting the calculated acuity score and the patient condition for review by a clinician;

g) generating an alert if the acuity score exceeds the stored threshold value;

h) re-calculating the acuity score upon expiration of each time interval; and

i) generating an alert if the re-calculated acuity score exceeds the stored threshold value;

wherein the step of calculating the acuity score comprises applying a weighting factor from the customizable rule set to the alarm event data, and

wherein the step of applying a weighting factor to the alarm event data comprises;

i) increasing a significance of a first portion of the alarm event data; and

ii) decreasing significance of second portion of the alarm event data.

13. The method of claim 12 wherein the step of calculating the acuity score comprises:

a) calculating a customized alarm event acuity score in conjunction with the customized rule set;

b) calculating a customized parameter alarm event acuity score in conjunction with the customized rule set;

c) calculating a customized technical alarm event acuity score in conjunction with the customized rule set; and

d) summing the customized alarm event acuity score, the customized parameter alarm event acuity score and the customized technical alarm event acuity score in conjunction with the customized rule set to form a composite acuity score.

14. The method of claim 13 further comprising the step of selecting a determination time period over which the stored alarm event data is received for calculation of the customized alarm event acuity score, the customized parameter alarm acuity score and the customized technical alarm event acuity score.

15. A system for evaluating alarms events determined by a patient monitor, the system comprising:

a) a patient monitor configured to receive physiological patient data, to detect an occurrence of an alarm condition, and to transmit an alarm event notification of the alarm condition and accompanying data concerning the alarm event;

b) a control unit configured to receive the notification of the alarm and accompanying data, to calculate an acuity score within a selected time interval with the data from the patient monitor and a customizable weighted rule set input into the control unit to customize the acuity score to a clinical care area within which the system is operated, to store the acuity score on a computer-readable memory device, to re-calculate an acuity score within a subsequent selected time interval with the data from the patient monitor and a customizable weighted rule set, to apply a weighting factor from the customizable rule set to the alarm event data to increase a significance of a first portion of the alarm event data and decrease a significance of second portion of the alarm event data, and to generate an alert if one of the calculated acuity score or the re-calculated acuity score exceeds a stored threshold value for the acuity score.