CPR quality assessment accounting for pause aspect

• US 10,420,702 B2
• Filed: 02/18/2014
• Issued: 09/24/2019
• Est. Priority Date: 02/20/2013
• Status: Active Grant

• Current Assignee: Physio-Control Incorporated (Stryker Corporation)
• Original Assignee: Physio-Control Incorporated (Stryker Corporation)
• Inventors: Walker, Robert G., Stickney, Ronald E., Chapman, Fred W.
• Primary Examiner(s): Nguyen, Tran N
• Application Number:
  US14/183,367
• Publication Number:
  US 20140236053A1
• Time in Patent Office: 2,044 Days
• CPC Class Codes: A61B 5/024 Detecting, measuring or recording pulse rate or heart rate A61B5/0205, A61B5/021 take precedence
• CPC Class Codes: A61H 31/00 Artificial respiration or heart stimulation, e.g. heart massage artificial respiration by treatment with gas or air, e.g. mouth-to-mouth respiration A61M16/00; applying electric currents by contact electrodes for stimulation, e.g. heart pace-makers A61N1/36 ; teaching or training models, demonstration models for medical purposes G09B23/288
• CPC Class Codes: A61H 31/005 with feedback for the user
• CPC Class Codes: A61H 31/007 Manual driven
• CPC Class Codes: A61N 1/3925 Monitoring; Protecting
• CPC Class Codes: C07D 413/14 containing three or more hetero rings
• CPC Class Codes: G16H 20/30 relating to physical therapies or activities, e.g. physiotherapy, acupressure or exercising
• CPC Class Codes: G16H 20/40 relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture

Abstract

Devices, systems, software and methods for CPR quality assessment. Patient data is received, derived from a session of administering sets of CPR chest compressions to a patient. The sets can be separated by pauses. In some embodiments, a penalty value can be determined for at least one of the pauses, from at least one control factor unrelated to a constant linear dependence on the pause duration. An indicative value can be derived from the penalty value. In some embodiments, at least some of the pauses are classified in one or more pause groups, depending on how well they meet one or more classification criteria. The indicative value can be derived for one of the pause groups. The indicative value can be output, and/or an alarm can be emitted if it exceeds a threshold. CPR quality assessment can be improved in real time, and provide feedback for training.

Claims

1. A system for Cardiopulmonary Resuscitation (CPR) feedback, comprising:

a sensor configured to detect sets of CPR chest compressions received by a patient, the sets separated by pauses;

a base device operatively coupled with the sensor and configured to generate patient data from the detected sets;

a user interface coupled to the base device; and

a processor configured to;

receive the patient data,

identify at least some of the pauses from the patient data,

receive a classification criterion from the user interface, the classification criterion being related to the pauses in the sets of CPR chest compressions,

classify at least some of the identified pauses in one of at least two pause groups based on the classification criterion,

determine a penalty value for each pause group based on a corresponding classification, and

derive respective indicative values for each of the pause groups based on the corresponding penalty values, and

in which the user interface is configured to output the indicative values and a prompt to alter an administration of CPR chest compressions received by the patient based at least in part on the indicative values.

2. The system of claim 1, in which

the processor and the user interface are included in the base device.

3. The system of claim 1, in which

the base device further includes a defibrillation module configured to defibrillate the patient.

4. The system of claim 1, in which

the indicative values are derived at least from a statistic related to a number of the pauses classified in their respective pause groups.

5. The system of claim 1, in which

the indicative values are derived after classifying all the pauses in the patient data.

6. The system of claim 1, in which

the indicative values are derived at least once prior to classifying all the pauses in the patient data.

12. The system of claim 1, wherein the classification criterion indicates a ventilation pause.

7. A system for Cardiopulmonary Resuscitation (CPR) feedback, comprising:

a sensor configured to detect sets of CPR chest compressions received by a patient, the sets separated by pauses;

a base device operatively coupled with the sensor and configured to generate patient data from the detected sets;

a user interface coupled to the base device; and

a processor configured to;

receive the patient data,

receive a classification criterion from the user interface, the classification criterion being related to the pauses in the sets of CPR chest compressions,

identify at least some of the pauses from the patient data,

classify at least some of the identified pauses in one of at least two pause groups based on the classification criterion,

determine a penalty value for each pause group based on a corresponding classification, wherein at least one penalty value varies non-linearly with pause duration, and

derive respective indicative values for each of the pause groups based on the corresponding penalty values, and

in which the user interface is configured to output the indicative values and a prompt to alter an administration of CPR chest compressions received by the patient, the prompt based at least in part on the indicative values.

8. The system of claim 7, in which

the base device further includes the processor, the user interface, and a defibrillation module configured to defibrillate the patient.

9. The system of claim 7, in which

the indicative values are derived at least from a statistic related to a number of the pauses classified in their respective pause groups.

10. The system of claim 7, in which

the indicative values are derived after classifying all the pauses in the patient data.

11. The system of claim 7, in which

the indicative values are derived at least once prior to classifying all the pauses in the patient data.

13. The system of claim 7, wherein the classification criterion indicates an intravenous access pause.