Integrated resuscitation

• US 20010047140A1
• Filed: 02/27/2001
• Published: 11/29/2001
• Est. Priority Date: 02/04/2000
• Status: Abandoned Application

• Current Assignee: Zoll Medical Corporation (Asahi Kasei Corporation)
• Original Assignee: Zoll Medical Corporation (Asahi Kasei Corporation)
• Inventors: Freeman, Gary A.
• Application Number:
  US09/794,320
• Publication Number:
  US 20010047140A1
• Time in Patent Office: Days
• US Class Current: 601/41
• CPC Class Codes: A61H 2031/002 fixed on the chest by adhesives
• CPC Class Codes: A61H 2201/10 with further special therapeutic means, e.g. electrotherapy, magneto therapy or radiation therapy, chromo therapy, infrared or ultraviolet therapy
• CPC Class Codes: A61H 2201/5007 computer controlled
• 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 2201/5061 Force sensors
• CPC Class Codes: A61H 2201/5084 Acceleration sensors
• CPC Class Codes: A61H 2230/207 partial O2-value
• CPC Class Codes: A61H 31/004 Heart stimulation
• CPC Class Codes: A61H 31/005 with feedback for the user
• CPC Class Codes: A61H 31/007 Manual driven
• CPC Class Codes: A61N 1/046 Specially adapted for shock therapy, e.g. defibrillation
• CPC Class Codes: A61N 1/0492 Patch electrodes A61N1/0412, A61N1/0428 take precedence
• CPC Class Codes: A61N 1/39044 in combination with cardiopulmonary resuscitation [CPR] therapy
• CPC Class Codes: A61N 1/3925 Monitoring; Protecting
• CPC Class Codes: A61N 1/3987 characterised by the timing or triggering of the shock
• CPC Class Codes: A61N 1/3993 User interfaces for automatic external defibrillators

Abstract

A resuscitation system includes first and second high-voltage defibrillation electrodes connected to a substrate. A CPR pad (e.g., a semi-rigid member) interconnected with the substrate is configured to be located over a region of a patient'"'"'s body appropriate for chest compressions when the first and second electrodes are positioned over regions of the patient'"'"'s body appropriate for defibrillation. A compression-sensing element such as an accelerometer, or a force-sensing element, is electrically connected to a resuscitation control system, which receives compression information from the compression-sensing element or force information from the force-sensing element. A plurality of manually operatable controls are mechanically interconnected with the first and second electrodes and the CPR pad and electrically connected to the resuscitation control system, which provides resuscitation prompts to a rescuer based on use of the manually operatable control by the rescuer. A control is positioned on the resuscitation control system that can be operated by a rescuer to indicate that the patient is ready for application of a defibrillation shock, and the resuscitation control system pauses at least about a second, more preferably at least about two seconds, between operation of the control by the rescuer and application of a shock to the patient. A pulse detection system detects whether the patient has a pulse when the substrate is in contact with the patient.

Claims

1. A combined defibrillation and CPR pad, comprising:

a substrate;

at least one first high-voltage defibrillation electrode connected to the substrate;

at least one second high-voltage defibrillation electrode connected to the substrate;

and

a CPR pad comprising a portion of the substrate or a member interconnected with the substrate and configured to be located over a region of a patient'"'"'s body appropriate for CPR chest compressions when the first and second electrodes are positioned over regions of the patient'"'"'s body appropriate for defibrillation.

2. The combined defibrillation and CPR pad of

claim 1

, further comprising a compression-sensing element at the location of the CPR pad.

3. The combined defibrillation and CPR pad of

claim 2

, wherein the compression-sensing element comprises an accelerometer.

4. The combined defibrillation and CPR pad of

claim 1

, further comprising a force-sensing element at the location of the CPR pad.

5. The combined defibrillation and CPR pad of

claim 4

wherein the force-sensing element comprises a force-sensing resistor that comprises two layers of material having a resistance therebetween that decreases with respect to increasing force therebetween.

6. The combined defibrillation and CPR pad of

claim 5

wherein the two layers of material comprise carbon.

7. The combined defibrillation and CPR pad of

claim 2

further comprising a resuscitation control system electrically connected to the compression-sensing element and configured to provide a rescuer with feedback as to compression applied by the rescuer to the CPR pad.

8. The combined defibrillation and CPR pad of

claim 7

wherein the resuscitation control system is physically separate from the combined defibrillation and CPR pad.

9. The combined defibrillation and CPR pad of

claim 7

wherein the resuscitation control system is configured to receive ECG signals from the electrodes for determining whether the patient is shockable.

10. The combined defibrillation and CPR pad of

claim 2

further comprising a resuscitation control system electrically connected to the compression-sensing element and configured to provide a rescuer with feedback as to a rate at which the rescuer performs CPR.

11. The combined defibrillation and CPR pad of

claim 2

further comprising a resuscitation control system electrically connected to the compression-sensing element and configured to provide a rescuer with feedback as to whether the rescuer should perform CPR.

12. The combined defibrillation and CPR pad of

claim 11

wherein the resuscitation control system informs rescuer not to perform CPR when the system is about to cause a defibrillation shock to be applied to the patient through the first and second electrodes.

13. The combined defibrillation and CPR pad of

claim 2

further comprising a resuscitation control system electrically connected to the compression-sensing element and to the electrodes and configured to perform ECG analysis during pauses between chest compressions.

14. The combined defibrillation and CPR pad of

claim 1

1 wherein the resuscitation control system informs the user to suspend CPR while the system receives ECG signals and performs ECG analysis.

15. The combined defibrillation and CPR pad of

claim 1

wherein the CPR pad is a semi-rigid member.

16. The combined defibrillation and CPR pad of

claim 1

wherein the first electrode is a sternum electrode and the second electrode is an apex electrode.

17. A CPR system, comprising:

a CPR pad configured to be located over a region of a patient'"'"'s body appropriate for CPR chest compressions;

a compression-sensing element interconnected with the CPR pad; and

a resuscitation control system electrically connected to the compression-sensing element and configured to receive compression information from the compression-sensing element.

18. The CPR system of

claim 17

wherein the compression-sensing element comprises an accelerometer.

19. The CPR system of

claim 17

wherein the resuscitation control system is configured to provide a rescuer with feedback as to chest compression achieved by the rescuer during CPR.

20. The CPR system of

claim 17

wherein the resuscitation control system is configured to provide a rescuer with feedback as to a rate at which the rescuer performs CPR.

21. The CPR system of

claim 17

wherein the resuscitation control system is configured to provide a rescuer with feedback as to whether the rescuer should perform CPR.

22. The CPR system of

claim 21

wherein the resuscitation control system informs the rescuer not to perform CPR when the system is about to cause a defibrillation shock to be applied to the patient.

23. The CPR system of

claim 17

wherein the resuscitation control system is electrically connected to the electrodes to receive ECG signals and is configured to perform ECG analysis during pauses between chest compressions.

24. The combined defibrillation and CPR pad of

claim 17

wherein the resuscitation control system informs the user to suspend CPR while the system receives ECG signals and performs ECG analysis.

25. The combined defibrillation and CPR pad of

claim 17

wherein the CPR pad is a semi-rigid member.

26. The CPR system of

claim 17

, further comprising at least one manually operatable control mechanically connected with the CPR pad, wherein the resuscitation control system is electrically connected to the at least one manually operatable control and is configured to provide resuscitation prompts to a rescuer based on use of the manually operatable control by the rescuer.

27. A resuscitation system, comprising:

at least one first high-voltage defibrillation electrode;

at least one second high-voltage defibrillation electrode; and

at least one manually operatable control mechanically connected with and in the vicinity of at least one of the first and second electrodes; and

a resuscitation control system electrically connected to the first and second electrodes and the at least one manually operatable control and configured to provide resuscitation prompts to a rescuer based on use of the manually operatable control by the rescuer.

28. The resuscitation system of

claim 27

wherein there are a plurality of manually operatable controls mechanically connected with at least one of the first and second electrodes.

29. The resuscitation system of

claim 27

wherein the at least one manually operatable control comprises a pause control for pausing a resuscitation procedure.

30. The resuscitation system of

claim 27

wherein the at least one manually operatable control comprises a help button for requesting prompts from the resuscitation control system with respect to a particular aspect of resuscitation.

31. The resuscitation system of

claim 30

wherein the particular aspect of resuscitation comprises clearing a patient'"'"'s airway.

32. The resuscitation system of

claim 30

wherein the particular aspect of resuscitation comprises assisting a patient'"'"'s breathing.

33. The resuscitation system of

claim 30

wherein the particular aspect of resuscitation comprises assisting a patient'"'"'s circulation.

34. The resuscitation system of

claim 27

wherein the first electrode is a sternum electrode and the second electrode is an apex electrode.

35. A defibrillation system, comprising:

at least one first high-voltage defibrillation electrode;

at least one second high-voltage defibrillation electrode;

a control system electrically connected to the first and second electrodes and configured to cause a defibrillation shock to be applied to a patient through the first and second electrodes; and

the control system being configured to pause at least about a second between activation of the defibrillation system and application of a shock to the patient.

36. The defibrillation system of

claim 35

further comprising a control positioned on the control system that can be operated by a rescuer to indicate that the patient is ready for application of a defibrillation shock, the control system being configured to pause at least about a second between operation of the control by the rescuer and application of a shock to the patient.

37. The defibrillation system of

claim 35

wherein the control system is configured to pause at least about two seconds between operation of the control by the rescuer and application of the shock to the patient.

38. The defibrillation system of

claim 35

wherein the control system is configured to provide resuscitation prompts to a rescuer for non-defibrillation resuscitation of the patient.

39. The defibrillation system of

claim 38

wherein the resuscitation prompts comprises CPR prompts.

40. The defibrillation system of

claim 35

wherein the first electrode is a sternum electrode and the second electrode is an apex electrode.

41. A defibrillation system, comprising:

at least one first high-voltage defibrillation electrode;

at least one second high-voltage defibrillation electrode;

a control system electrically connected to the first and second electrodes and configured to cause a defibrillation shock to be applied to a patient through the first and second electrodes; and

a pulse detection system affixed to a substrate to which at least one of the electrodes is affixed, the pulse detection system being configured to detect whether the patient has a pulse when the substrate is in contact with the patient;

the control system being configured to permit or to cause the defibrillation shock to be applied to the patient when the pulse detection system determines that the patient has no pulse and to prevent the defibrillation shock from being applied to the patient when the pulse detection system determines that the patient has a pulse.

42. The defibrillation system of

claim 41

wherein the pulse detection system comprises sensing light passed through a vascular bed of the patient.

43. The defibrillation system of

claim 42

wherein the pulse detection system is a pulse oximetry system.

44. The defibrillation system of

claim 41

wherein the pulse detection system is a phonocardiogram system.

45. The defibrillation system of

claim 41

wherein the control system is configured to provide resuscitation prompts to a rescuer for non-defibrillation resuscitation of the patient.

46. The defibrillation system of

claim 45

wherein the resuscitation prompts comprises CPR prompts.

47. The defibrillation system of

claim 41

wherein the first electrode is a sternum electrode and the second electrode is an apex electrode.