Defibrillator display

1 . A medical system for assisting in administration of cardiopulmonary resuscitation to a patient, the system comprising:

a display;

at least one chest compression sensor for obtaining data representative of chest compressions performed on the patient; and

at least one processor in communication with the display and with the at least one chest compression sensor, the at least one processor configured to:

receive the data representative of the chest compressions performed on the patient from the at least one chest compression sensor,

process the received data from the at least one chest compression sensor to detect a presence of chest compressions administered to the patient during a designated chest compression period,

when the presence of chest compressions is detected, process the received data from the at least one chest compression sensor to determine depth and rate for the chest compressions being performed and cause the display to present on a portion of the display:

(i) numerals having a resolution of at least a tenth for the determined depth of the chest compressions along with

(ii) a shape with an amount of fill in the shape differing based upon the determined depth and the determined rate for the chest compressions being performed;

process the received data from the at least one chest compression sensor to detect an absence of chest compressions administered to the patient during the designated chest compression period, and

when the absence of chest compressions is detected, cause the display to remove the numerals for the determined depth from the display and cause a visual indication representative of an idle time since chest compressions ceased being administered to the patient during the designated chest compression period to be displayed on the portion of the display previously displaying the numerals for the determined depth.

2 . The medical system of claim 1 , wherein the display comprises a video display screen.

3 . The medical system of claim 1 , wherein the at least one chest compression sensor comprises a motion sensor comprised in a housing configured to be placed on the patient's sternum for obtaining motion data as a result of the chest compressions performed on the patient, and

wherein the motion data comprises at least one of acceleration, velocity, or displacement of the sternum as a result of chest compressions performed on the patient.

4 . The medical system of claim 3 , wherein the motion sensor comprises an accelerometer, and wherein the motion data comprises data for acceleration of the patient's sternum as a result of the chest compressions.

5 . The medical system of claim 3 , wherein the at least one processor is configured to calculate or derive at least one of an acceleration, velocity, or displacement of the patient's sternum during chest compressions from the motion data.

6 . The medical system of claim 1 , wherein the visual indication representative of the idle time comprises a timer comprising displayed numerical values indicating an elapsed time during the designated chest compression period since cessation of chest compressions.

7 . The medical system of claim 1 , wherein the at least one processor is further configured to cause an indication instructing a user to resume chest compressions to appear on the display along with the visual indication representative of the idle time.

8 . The medical system of claim 1 , wherein processing the received data from the at least one chest compression sensor to determine the chest compression depth comprises calculating sternal displacement for chest compressions administered to the patient.

9 . The medical system of claim 8 , wherein the at least one processor is further configured to compare the calculated sternal displacement to a predetermined maximum acceptable sternal displacement value and a predetermined minimum sternal displacement acceptable value, and

wherein an appearance of the numerals for the determined depth is based at least in part on results of the comparisons.

10 . The medical system of claim 1 , further comprising at least one sensor for obtaining physiological data of the patient, wherein the at least one processor is further configured to:

receive the physiological data from the at least one physiological sensor, and

present physiological information on the display based on the received physiological data.

11 . The medical system of claim 10 , wherein the physiological information presented on the display comprises at least one of SpO 2 information of the patient or CO 2 information of the patient.

12 . The medical system of claim 11 , wherein the at least one processor is further configured to remove at least a portion of the physiological information from the display when the presence of the chest compressions is detected.

13 . The medical system of claim 1 , further comprising one or more electrodes for receiving information about the patient's heart activity, wherein the at least one processor is configured to:

present an unfiltered electrocardiogram based on the received information about the patient's heart activity on the display when the absence of the chest compressions is detected, and

replace the unfiltered electrocardiogram with a filtered electrocardiogram when the presence of the chest compressions is detected.

14 . The medical system of claim 1 , wherein the numerals for the determined depth represent distance for depth, and

wherein the at least one processor is further configured to display numerals for the determined rate that represent compressions per minute for rate.

15 . The medical system of claim 1 , wherein the at least one processor is configured to identify a start of the designated chest compression period based on observed electrocardiogram signals for the patient.

16 . The medical system of claim 15 , further comprising one or more electrodes for receiving the electrocardiogram signals for the patient.

17 . The medical system of claim 16 , wherein the at least one processor is configured to:

analyze the electrocardiogram signals during the designated chest compression period to identify a shockable rhythm in the electrocardiogram signal; and

provide an instruction about an amount of time remaining in the designated chest compression period when the shockable rhythm is identified.

18 . The medical system of claim 17 , wherein the amount of time remaining in the designated chest compression period is based on a length of time used to charge a defibrillator device of the medical system.

19 . The medical system of claim 16 , wherein the at least one processor is configured to:

present an unfiltered electrocardiogram waveform based on the received electrocardiogram signals on the display when the absence of the chest compressions is detected, and

replace the unfiltered electrocardiogram waveform with a filtered electrocardiogram waveform when the presence of the chest compressions is detected.

20 . The medical system of claim 1 , wherein the visual indication representative of the idle time comprises numerals that represent seconds since the chest compressions ceased being administered to the patient, and

wherein, when the absence of chest compressions is detected, the at least one processor is configured to replace the numerals for the determined depth with the numerals of the visual indication representative of the idle time.

21 . The medical system of claim 1 , wherein the shape is fully filled when the determined depth and the determined rate for the chest compressions fall within predetermined acceptable ranges for chest compression depth and chest compression rate.

22 . The medical system of claim 1 , wherein the shape is partly filled when the determined depth of chest compressions falls below a predetermined acceptable range for chest compression depth.