Providing feedback for CPR treatment

Patent metadata

Field	Value
Publication number	US-10959913-B2
Application number	US-201615380429-A
Country	US
Kind code	B2
Filing date	Dec 15, 2016
Priority date	Mar 7, 2013
Publication date	Mar 30, 2021
Grant date	Mar 30, 2021

Abstract

A method includes receiving a signal representative of chest compressions being applied to a patient; calculating, based on the signal, a first value for a first parameter of the chest compressions; and determining if the first value is included in a first target range. When the first value is included in the first target range, the method includes calculating, based on the signal, a second value for a second parameter of the chest compressions; and determining if the second is included in a second target range.

First claim

What is claimed is:

1. A system comprising:
at least one sensor configured to detect a signal representative of chest compressions being applied to a patient;
a processor operatively connected to the at least one sensor and configured to receive the signal representative of chest compressions being applied to the patient from the at least one sensor; and
an output element operatively connected to the processor, the processor configured to:
calculate, based on the signal representative of chest compressions being applied to the patient, a first parameter of the chest compressions;
determine if the first parameter of the chest compressions falls within a first target range;
cause the output element to output a first feedback indicative of the first parameter;
calculate, based on the signal representative of chest compressions being applied to the patient, a second parameter of the chest compressions;
determine if the second parameter of the chest compressions falls within a second target range;
withholding feedback indicative of the second parameter of the chest compressions until the first parameter falls within the first range; and
after the output element outputs the first feedback indicative of the first parameter and when the first parameter falls within the first range, cause the output element to output a second feedback indicative of the second parameter.

2. The system of claim 1 , wherein the first parameter comprises chest compression rate.

3. The system of claim 1 , wherein the second parameter represents comprises chest compression depth.

4. The system of claim 1 , wherein the at least one sensor comprises an accelerometer.

5. The system of claim 1 , wherein the first feedback and/or the second feedback comprises at least one of audio feedback, visual feedback, and/or tactile feedback.

6. The system of claim 1 , wherein the output element comprises at least one of a speaker, a display screen, one or more lights, a gauge, and a vibration element.

7. The system of claim 1 , wherein the first feedback indicates that the first parameter is one or more of the following: within the first target range, below the first target range, and above the first target range.

8. The system of claim 1 , wherein the processor is configured to cause the output element to output the first feedback prior to calculating the second parameter.

9. The system of claim 1 , wherein the first parameter comprises chest compression rate, and wherein the output element includes at least one light configured to flash at a target compression rate.

10. The system of claim 1 , wherein the second parameter comprises chest compression depth, and wherein the output element includes a plurality of lights configured to turn on and turn off sequentially based on the compression depth.

11. The system of claim 1 , wherein the processor is configured to discontinue the first feedback indicative of the first parameter when the first parameter falls within the first range and when the output element outputs the second feedback indicative of the second parameter.

12. An apparatus comprising:
at least one sensor configured to detect a signal representative of chest compressions being applied to a patient;
one or more output elements configured to provide chest compression rate feedback and chest compression depth feedback; and
a processor operatively connected to the at least one sensor to receive the signal representative of chest compressions being applied to the patient from the at least one sensor and the one or more output elements, the processor configured to:
calculate a rate of chest compressions applied to the patient based on the signal;
determine if the rate of chest compressions falls within a first target range;
control at least one of the output elements based on the calculated rate to provide a first feedback regarding the calculated rate;
calculate a depth of chest compressions applied to the patient based on the signal;
determine if the depth of chest compressions falls within a second target range;
preventing the output elements from providing feedback regarding the depth of chest compressions until rate of chest compressions falls within the first range; and
after at least one of the output elements provides the first feedback regarding the calculated rate and when the rate of chest compressions falls within the first target range, control at least one of the output elements based on the calculated depth to provide a second feedback regarding the calculated depth.

13. The apparatus of claim 12 , wherein the one or more output elements comprise a first set of lights configured to represent a rate that the chest compressions are applied to the patient.

14. The apparatus of claim 13 , wherein controlling the first set of lights includes causing at least one of the first set of lights to flash at a target compression rate.

15. The apparatus of claim 13 , wherein controlling the first set of lights includes:
causing a first one of the first set of lights to flash at a target compression rate if the calculated rate is below the first target rate range; and
causing a second one of the first set of lights to flash at the target compression rate if the calculated rate is above the first target rate range.

16. The apparatus of claim 13 , wherein controlling the first set of lights includes causing a first one of the first set of lights to be illuminated continuously when the calculated rate falls within the target rate range.

17. The apparatus of claim 13 , wherein controlling the first set of lights includes causing the first set of lights to turn off when the calculated compression rate falls within the target rate range.

18. The apparatus of claim 13 , wherein the one or more output elements further comprises a second set of lights configured to represent a depth that the chest compressions are applied.

19. The apparatus of claim 18 , wherein controlling the second set of lights includes causing at least a subset of the second set of lights to turn on sequentially and turn off sequentially.

20. The apparatus of claim 18 , wherein controlling the second set of lights includes:
causing a first subset of the second set of lights to turn on sequentially and turn off sequentially if the calculated depth is below a target depth range;
causing a second subset of the second set of lights to turn on sequentially and turn off sequentially if the calculated depth is within the target depth range; and
causing a third subset of the second set of lights to turn on sequentially and turn off sequentially if the calculated depth is above the target depth range,
wherein the third subset includes more lights than the second subset, and wherein the second subset includes more lights than the first subset.

21. The apparatus of claim 12 , wherein the one or more output elements comprise one or more of light emitting diodes (LEDs) and organic light emitting diodes (OLEDs).

22. The apparatus of claim 12 , wherein the one or more output elements comprise images of lights displayed on a display screen.

Assignees

• Zoll Medical Corp

Inventors

• Totman Mark
• Mcgough Timothy Sean

Classifications

• A61H2201/5043

  Displays · CPC title

• A61H2201/5097

  wireless · CPC title

• A61H2201/5061

  Force sensors · CPC title

• A61H31/005 Primary

  with feedback for the user · CPC title

• A61H2201/5084

  Acceleration sensors · CPC title