CPR team performance

• US 9,522,096 B2
• Filed: 05/17/2012
• Issued: 12/20/2016
• Est. Priority Date: 05/17/2012
• Status: Active Grant

• Current Assignee: Zoll Medical Corporation (Asahi Kasei Corporation)
• Original Assignee: Zoll Medical Corporation (Asahi Kasei Corporation)
• Inventors: Jensen, Jeffrey Paul, Freeman, Gary A.
• Primary Examiner(s): Thanh, Quang D
• Application Number:
  US13/474,269
• Publication Number:
  US 20130310718A1
• Time in Patent Office: 1,678 Days
• Field of Search: 601 41- 44
• US Class Current: 1/1
• CPC Class Codes: A61H 2201/5007 computer controlled
• CPC Class Codes: A61H 2201/5015 using specific interfaces or standards, e.g. USB, serial, parallel
• CPC Class Codes: A61H 2201/5043 Displays
• CPC Class Codes: A61H 2201/5048 Audio interfaces, e.g. voice or music controlled
• CPC Class Codes: A61H 2201/5084 Acceleration sensors
• CPC Class Codes: A61H 2201/5097 wireless
• CPC Class Codes: A61H 2230/04 Heartbeat characteristics, e.g. E.G.C., blood pressure modulation
• CPC Class Codes: A61H 31/005 with feedback for the user
• CPC Class Codes: A61N 1/046 Specially adapted for shock therapy, e.g. defibrillation
• CPC Class Codes: A61N 1/39044 in combination with cardiopulmonary resuscitation [CPR] therapy
• CPC Class Codes: A61N 1/3993 User interfaces for automatic external defibrillators
• CPC Class Codes: G09B 23/288 for artificial respiration or heart massage
• CPC Class Codes: G16H 20/30 relating to physical therapies or activities, e.g. physiotherapy, acupressure or exercising

Abstract

Systems and methods related to the field of cardiac resuscitation, and in particular to devices for assisting rescuers in performing cardio-pulmonary resuscitation (CPR) are described herein. A method for managing cardiopulmonary resuscitation (CPR) treatment to a person in need of emergency assistance includes monitoring, with an electronic medical device, a parameter that indicates a quality level of a CPR component being provided to the person by a user; determining, with the electronic medical device, that the parameter indicates that the quality level of CPR being provided is inadequate; and providing, to one or more rescuers of the person, an audible, visual, or tactile indication that a different person should perform the CPR component.

Claims

1. A system for managing cardiopulmonary resuscitation (CPR) treatment to a person in need of emergency assistance, the system comprising:

an electronic patient monitor;

a sensor interface on the monitor arranged to receive input from one or more sensors;

a memory in the electronic patient monitor storing a plurality of signals providing prompts related to CPR;

a CPR monitor in the electronic patient monitor operatively connected to the memory and programmed to use the input from the one or more sensors to;

identify at least one of a depth of compression of chest compressions performed on the person in need of emergency assistance and a rate of compression of chest compressions performed on the person in need of emergency assistance, calculate an indication of rescuer fatigue based at least in part on at least one of the depth of compression and the rate of compression, and

generate, from the plurality of signals providing prompts related to CPR stored in the memory, a signal to provide a prompt to switch rescuers performing CPR when the indication of rescuer fatigue meets a determined criterion; and

an output interface in communication with the CPR monitor and arranged to provide rescuers using the electronic patient monitor with the prompt to switch rescuers in response to receiving the generated signal from the CPR monitor.

2. The system of claim 1, wherein the electronic patient monitor is part of an external patient defibrillator.

3. The system of claim 2, wherein the output interface comprises an electronic display attached to a connector that also is attached to defibrillator electrodes for connection to the external patient defibrillator.

4. The system of claim 3, wherein the electronic display is attached to one of the defibrillator electrodes and arranged so as to rest adjacent a rescuer'"'"'s hands when the electrode is properly placed on the person in need of emergency assistance, and the rescuer'"'"'s hands are placed for performing CPR chest compressions.

5. The system of claim 1, wherein the CPR monitor comprises a microprocessor connected to the memory that further stores instructions that when executed perform a process of identifying at least one of the depth of compression of the chest compressions performed on the person in need of emergency assistance and the rate of compression of the chest compressions performed on the person in need of emergency assistance, calculating the indication of rescuer fatigue, and generating a signal to provide the prompt to switch rescuers performing CPR when the indication of rescuer fatigue meets a determined criterion.

6. The system of claim 1, further comprising a sensor arranged to sense a quality level of chest compressions performed on the person in need of emergency assistance.

7. The system of claim 1, wherein the CPR monitor is further programmed to repeat cyclically actions of identifying at least one of the depth of compression of the chest compressions performed on the person in need of emergency assistance and the rate of compression of the chest compressions performed on the person in need of emergency assistance, determining whether the indication of rescuer fatigue indicates a need to switch rescuers, and generating a signal to provide the prompt to switch rescuers when the indication of rescuer fatigue indicates a need.

8. The system of claim 1, further comprising a display arranged to provide feedback to a rescuer indicating a way to improve at least one of the depth of compression of the chest compressions performed on the person in need of emergency assistance and the rate of compression of the chest compressions performed on the person in need of emergency assistance.

9. The system of claim 1, wherein the output interface comprises a wireless transmitter arranged to communicate data regarding the indication of rescuer fatigue to a rescuer of the person in need of emergency assistance.

10. The system of claim 1, wherein the output interface is arranged to communicate with a first display device for use by a first rescuer, and further comprising a second interface arranged to communicate with a second display device for use by a second rescuer, the second display device to communicate information about a CPR component that is different than information about a CPR component that is displayed on the first display device.

11. The system of claim 1 where the indication of rescuer fatigue is determined by a running average scoring technique.

12. The system of claim 1 where the indication of rescuer fatigue is determined by at least one of a rate of change of the depth of compression of the chest compressions performed on the person in need of emergency assistance and the rate of compression of the chest compressions performed on the person in need of emergency assistance compared to a preset value.

13. The system of claim 1 where the indication of rescuer fatigue is determined by comparing at least one of the depth of compression of the chest compressions performed on the person in need of emergency assistance and the rate of compression of the chest compressions performed on the person in need of emergency assistance to a preset model generated to represent a typical fatigued user.

14. The system of claim 1, wherein the plurality of signals providing prompts related to CPR stored in the memory comprise a prompt related to rate of compressions, a prompt related to depth of compressions, prompts related to an ECG waveform, prompts related to a CO₂ waveform, a perfusion performance indicator, the prompt to switch rescuers, or any combination thereof.