Automatic lead switching

Patent metadata

Field	Value
Publication number	US-12233276-B2
Application number	US-202117540955-A
Country	US
Kind code	B2
Filing date	Dec 2, 2021
Priority date	Dec 3, 2020
Publication date	Feb 25, 2025
Grant date	Feb 25, 2025

Abstract

An example method is performed by a defibrillator that includes a therapy cable receptacle and an electrocardiogram cable receptacle. The method includes displaying a user interface screen that includes a primary channel for displaying a primary waveform and a secondary channel for displaying secondary data. The method also includes detecting a lack of a patient connection for therapy pads and detecting a patient connection for an ECG lead obtained using an ECG electrode cable. In addition, the method includes displaying a representation of an ECG signal obtained using the ECG electrode cable in the primary channel based on detecting the lack of the patient connection for the therapy pads and detecting the patient connection for the ECG lead.

First claim

What is claimed is:

1. A method comprising:
displaying, by a defibrillator, a user interface screen that includes a primary channel for displaying a primary waveform and a secondary channel for displaying secondary data, wherein the defibrillator comprises:
a therapy cable receptacle configured to receive a therapy cable comprising therapy pads, and
an electrocardiogram (ECG) cable receptacle configured to receive an ECG electrode cable;

detecting, by the defibrillator, a lack of a patient connection for the therapy pads;
detecting, by the defibrillator, a patient connection for an ECG lead, wherein the ECG lead is obtained using the ECG electrode cable; and
based on detecting the lack of the patient connection for the therapy pads and detecting the patient connection for the ECG lead, displaying a representation of an ECG signal obtained using the ECG electrode cable in the primary channel.

2. The method of claim 1 , wherein the primary channel is positioned above the secondary channel.

3. The method of claim 1 , further comprising prior to displaying the representation of the ECG signal obtained using the ECG electrode cable in the primary channel, displaying a placeholder for a representation of an ECG signal obtained using the therapy pads in the primary channel,
wherein displaying the representation of the ECG signal obtained using the ECG electrode cable in the primary channel comprises replacing the placeholder with the representation of the ECG signal obtained using the ECG electrode cable.

4. The method of claim 1 , wherein detecting the lack of the patient connection for the therapy pads comprises:
measuring a patient impedance using the therapy pads; and
determining that the patient impedance satisfies a threshold condition.

5. The method of claim 1 , wherein detecting the patient connection for the ECG lead comprises:
measuring a patient impedance using the ECG electrode cable; and
determining that the patient impedance satisfies a threshold condition.

6. The method of claim 1 , wherein detecting the patient connection for the ECG lead comprises determining that multiple electrodes of the ECG electrode cable are connected to a patient.

7. The method of claim 1 , further comprising:
obtaining physiologic monitoring data using a sensor connected to the defibrillator; and
determining that the physiologic monitoring data satisfies a threshold condition,
wherein displaying the representation of the ECG signal for the ECG lead in the primary channel is further based on determining that the physiologic monitoring data satisfies a threshold condition.

8. The method of claim 1 , wherein the representation of the ECG signal is a representation of an ECG signal for the ECG lead.

9. The method of claim 8 , wherein the ECG lead is a bipolar limb lead.

10. The method of claim 1 , wherein the representation of the ECG signal is a representation of an ECG signal for another ECG lead.

11. A non-transitory computer-readable medium having stored therein a plurality of executable instructions, which when executed by a defibrillator causes the defibrillator to perform functions comprising:
displaying a user interface screen that includes a primary channel for displaying a primary waveform and a secondary channel for displaying secondary data, wherein the defibrillator comprises:
a therapy cable receptacle configured to receive a therapy cable comprising therapy pads, and
an electrocardiogram (ECG) cable receptacle configured to receive an ECG electrode cable;

detecting a lack of a patient connection for the therapy pads;
detecting a patient connection for an ECG lead, wherein the ECG lead is obtained using the ECG electrode cable; and
based on detecting the lack of the patient connection for the therapy pads and detecting the patient connection for the ECG lead, displaying a representation of an ECG signal obtained using the ECG electrode cable in the primary channel.

12. The non-transitory computer-readable medium of claim 11 , wherein the primary channel is positioned above the secondary channel.

13. The non-transitory computer-readable medium of claim 11 , wherein:
the functions further comprise prior to displaying the representation of the ECG signal obtained using the ECG electrode cable in the primary channel, displaying a placeholder for a representation of an ECG signal obtained using the therapy pads in the primary channel, and
displaying the representation of the ECG signal obtained using the ECG electrode cable in the primary channel comprises replacing the placeholder with the representation of the ECG signal obtained using the ECG electrode cable.

14. The non-transitory computer-readable medium of claim 11 , wherein detecting the lack of the patient connection for the therapy pads comprises:
measuring a patient impedance using the therapy pads; and
determining that the patient impedance satisfies a threshold condition.

15. The non-transitory computer-readable medium of claim 11 , wherein detecting the patient connection of the ECG lead comprises:
measuring a patient impedance using the ECG electrode cable; and
determining that the patient impedance satisfies a threshold condition.

16. The non-transitory computer-readable medium of claim 11 , where detecting the patient connection for the ECG lead comprises determining that multiple electrodes of the ECG electrode cable are connected to a patient.

17. A defibrillator comprising:
a therapy cable receptacle configured to receive a therapy cable comprising therapy pads;
an electrocardiogram (ECG) cable receptacle configured to receive an ECG electrode cable;
a non-transitory computer-readable medium having stored therein a plurality of executable instructions; and
a processor adapted to execute the plurality of executable instructions to:
display a user interface screen that includes a primary channel for displaying a primary waveform and a secondary channel for displaying secondary data,
detect a lack of a patient connection for the therapy pads;
detect a patient connection for an ECG lead, wherein the ECG lead is obtained using the ECG electrode cable; and
based on detecting the lack of the patient connection for the therapy pads and detecting the patient connection for the ECG lead, display a representation of an ECG signal obtained using the ECG electrode cable in the primary channel.

18. The defibrillator of claim 17 , wherein the primary channel is positioned above the secondary channel.

19. The defibrillator of claim 17 , wherein detecting the lack of the patient connection for the therapy pads comprises:
measuring a patient impedance using the therapy pads; and
determining that the patient impedance satisfies a threshold condition.

20. The defibrillator of claim 17 , wherein detecting the patient connection for the ECG lead comprises:
measuring a patient impedance using the ECG electrode cable; and
determining that the patient impedance satisfies a threshold condition.

Assignees

• Physio Control Inc

Inventors

• Rutzer Mark
• Mason Christina
• Linville David J
• Fouts Jason W

Classifications

• A61N1/3943

  for threshold determination · CPC title

• A61N1/3904 Primary

  External heart defibrillators [EHD] · CPC title

• A61N1/3925

  Monitoring; Protecting · CPC title

• A61N1/3993 Primary

  User interfaces for automatic external defibrillators · CPC title