MEDICAL EQUIPMENT ELECTRODES

• US 20190314625A1
• Filed: 06/14/2019
• Published: 10/17/2019
• Est. Priority Date: 09/01/2011
• Status: Active Grant

• Current Assignee: Zoll Medical Corporation (Asahi Kasei Corporation)
• Original Assignee: Zoll Medical Corporation (Asahi Kasei Corporation)
• Inventors: Elghazzawi, Ziad F., Freeman, Gary A.
• Granted Patent: US 11,224,738 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 5/0077 Devices for viewing the surface of the body, e.g. camera, magnifying lens
• CPC Class Codes: A61B 5/065 Determining position of the probe employing exclusively positioning means located on or in the probe, e.g. using position sensors arranged on the probe
• CPC Class Codes: A61B 5/276 Protection against electrode failure
• CPC Class Codes: A61B 5/361 Detecting fibrillation
• CPC Class Codes: A61B 5/684 Indicating the position of the sensor on the body
• CPC Class Codes: A61B 5/6843 Monitoring or controlling sensor contact pressure
• 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 1/3904 External heart defibrillators [EHD]
• 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 1/3968 Constructional arrangements, e.g. casings A61N1/375 takes precedence
• CPC Class Codes: A61N 1/3993 User interfaces for automatic external defibrillators

Abstract

Methods and system for guiding a rescuer in placement of a defibrillation electrode may include initializing one or more cameras disposed on the defibrillation electrode, and capturing image information via the one or more cameras. Each image in a series of images may be acquired by the cameras after a set time interval. The method may include determining a separation distance between the defibrillation electrode and the chest of the patient and comparing the separation distance to a threshold distance. The method may further include determining whether the separation distance is below the threshold distance and, once the separation distance is below the threshold distance, determining a current location of the defibrillation electrode based on the series of images, and providing positioning feedback via at least one output device, wherein the positioning feedback includes instructions to move the defibrillation electrode toward a preferred location on the patient.

Claims

1. A computer implemented method for guiding a rescuer in placement of a defibrillation electrode on a chest of a patient, the method comprising:

initializing one or more cameras disposed on the defibrillation electrode;

capturing image information via the one or more cameras disposed on the defibrillation electrode, wherein each image in a series of images is acquired by the one or more cameras after a set time interval;

determining a separation distance between the defibrillation electrode and the chest of the patient and comparing the separation distance to a threshold distance;

determining whether the separation distance is below the threshold distance and, once the separation distance is below the threshold distance, determining a current location of the defibrillation electrode based on the series of images;

providing positioning feedback via at least one output device, wherein the positioning feedback includes instructions to move the defibrillation electrode toward a preferred location for placement on the patient.

2. The method of claim 1, wherein determining the current location of the defibrillation electrode comprises determining an x-translation distance and a y-translation distance between the current location of the defibrillation electrode and the preferred location for the placement of the at least one.

3. The method of claim 1, wherein determining the current location comprises comparing the generated series of images to previously stored images.

4. The method of claim 3, wherein comparing the generated series of images to previously stored images comprises comparing one or more identified features in the series of images to the previously stored images, which include the defibrillation electrode positioned in the preferred location for the placement on the chest of the patient and adjacent to one or more features of the patient.

5. The method of claim 4, wherein the one or more features of the patient include at least one of:

nipples, shoulders, a belly button, and a sternum of the patient.

6. The method of claim 1, wherein providing positioning feedback includes displaying the current location of the defibrillation electrode relative to the chest of the patient via the at least one output device.

7. The method of claim 6, wherein providing positioning feedback includes determining whether the current location of the defibrillation electrode corresponds to the preferred location for the placement of the defibrillation electrode.

8. The method of claim 7, further comprising providing an indication when the current location of the defibrillation electrode corresponds to the preferred location for the placement of the defibrillation electrode.

9. The method of claim 8, further comprising determining a current location of a second defibrillation electrode based on the one or features of the patient in the series of images.

10. The method of claim 9, further comprising providing positioning feedback to the at least one output device, wherein the positioning feedback includes instructions to move the second defibrillation electrode to a preferred location for the placement on the chest of the patient.

11. The method of claim 10, further comprising providing an indication when the current location of the second defibrillation electrode corresponds to the preferred location for the placement of the second defibrillation electrode.

12. The method of claim 11, further comprising providing one or more defibrillation shock to the patient in response to a determination that the defibrillation electrode and the second defibrillation electrode are in their respective preferred locations on the chest of the patient.

13. The method of claim 1, wherein providing positioning feedback includes indicating a direction via the at least one output device, relative to the current location of the defibrillation electrode, in which the rescuer should move the defibrillation electrode.

14. The method of claim 13, wherein the at least one output device is a display and the positioning feedback comprises visual feedback.

15. The method of claim 14, wherein the visual feedback comprises illuminating one or more indicators disposed on the defibrillation electrode such that one or more of the one or more indicators illuminate to indicate a direction in which the rescuer should move the defibrillation electrode.

16. The method of claim 15, wherein the one or more indicators comprise:

a first light emitting diode configured to provide an indication that the rescuer should move the defibrillation electrode toward a head of the patient;

a second light emitting diode configured to provide an indication that the rescuer should move the defibrillation electrode toward feet of the patient;

a third light emitting diode configured to provide an indication that the rescuer should move the defibrillation electrode to the left of the current location; and

a fourth light emitting diode configured to provide an indication that the rescuer should move the defibrillation electrode to the right of the current location.

17. The method of claim 1, wherein providing positioning feedback includes playing audible feedback via a speaker of the at least one output device.

18. The method of claim 1, wherein the one or more cameras are video cameras.

19. The method of claim 18, wherein the series of images captured by the or more video cameras are video data.

20. The method of claim 1, wherein the one or more cameras are still image digital cameras.

21. The method of claim 20, wherein the series of images captured by the or more video cameras are still images.

22. The method of claim 21, wherein the still images comprise images captured in a time-lapse manner.