CN111543974A

CN111543974A - Multi-mode medical device

Info

Publication number: CN111543974A
Application number: CN201910110369.0A
Authority: CN
Inventors: D·鲍彻; A·弗雷斯查克尔; 张虎; 邵奇
Original assignee: Zoll Medical Corp
Current assignee: Zoll Medical Corp
Priority date: 2019-02-11
Filing date: 2019-02-11
Publication date: 2020-08-18
Also published as: CN111543976A

Abstract

A multi-mode medical device configured to operate in any one of an ECG monitoring mode, a defibrillation mode, and a pacing mode. The medical device includes a processor, patient treatment circuitry connected with the processor, one or more electronic ports connected with the processor. The one or more electronic ports are for receiving signals from at least one sensor to obtain an indication of a patient ECG from the sensor. The medical device includes a front panel. When the medical device is operated with a CPR accessory in a defibrillation mode, the front panel of the medical device is used to provide feedback information regarding the quality of CPR. During CPR, where the processor receives an indication that a CPR accessory is connected to the medical device and an indication that the CPR accessory receives chest compressions, CPR feedback information is configured to be presented on the screen of the front panel in place of at least a portion of the ECG indications that would otherwise be displayed at the same location of the screen.

Description

Multi-mode medical device

Technical Field

The present invention relates to medical devices, and more particularly, to cardiac resuscitation systems and techniques.

Background

Heart attacks are a common cause of death. Heart attacks occur when a portion of the heart tissue loses circulation and is thus damaged (e.g., due to an obstruction of the heart vasculature). Heart disease and other abnormalities may lead to Ventricular Fibrillation (VF), an abnormal heart rhythm (arrhythmia) that causes the heart to lose its pumping capacity. VF occurs when a normal and regular electrical pulse is replaced by an irregular and rapid pulse, which causes the heart muscles to stop contracting normally and begin to twitch. Normal blood flow ceases and if normal cardiac contraction is not restored, organ damage or death may result within minutes. Since the victim has no perceptible warning of impending fibrillation, death often occurs before the necessary medical assistance can arrive. Other arrhythmias may include a too slow heart rate known as bradycardia or a too fast heart rate known as tachycardia. Cardiac arrest may occur in the case of patients in which various arrhythmias for the heart, such as ventricular fibrillation, ventricular tachycardia, Pulseless Electrical Activity (PEA), and asystole (the heart stops all electrical activity), cause the heart to provide insufficient blood flow levels to the brain and other vital organs supporting life. If these problems are not corrected quickly (usually within minutes), the rest of the body is deprived of oxygen and the person dies. Thus, timely care of a person experiencing ventricular fibrillation may be critical to achieving positive results for such a person.

Sudden cardiac arrest and other cardiac health disorders are the leading causes of death worldwide. The goal of various resuscitation efforts is to maintain the circulatory and respiratory systems of the body during cardiac arrest in an attempt to save the patient's life. The earlier these resuscitation efforts begin, the better the patient's chances of survival. Implantable cardioverter/defibrillator (ICD) or external defibrillators, such as manual defibrillators or Automatic External Defibrillators (AEDs), have significantly improved the ability to treat these otherwise life-threatening conditions. These devices operate by applying corrective electrical pulses directly to the patient's heart. Ventricular fibrillation or ventricular tachycardia can be treated with implantable or external defibrillators, for example, by providing therapeutic shocks to the heart in an attempt to restore a normal heart rhythm. To treat conditions such as bradycardia, an implantable or external pacing device may provide pacing stimulation to a patient's heart until intrinsic cardiac electrical activity is restored. People who have previously had problems can be implanted with automatic defibrillators that constantly monitor their heart condition and apply shocks when necessary. Some people may be treated via Automated External Defibrillators (AEDs) of the type commonly found at airports, public gyms, schools, shopping areas, and other public places. Examples of these AEDs are AED automatic external defibrillators or AED automatic external defibrillators, both from medical companies located in chemford, massachusetts. As provided herein, the term AED generally refers to any device or system that incorporates some method or algorithm for acquiring an Electrocardiogram (ECG) signal, analyzing the ECG for suitability for delivering a defibrillation shock to a patient, and possibly delivering a defibrillation shock.

Disclosure of Invention

In accordance with an aspect of the present disclosure, a multi-mode medical device configured to operate in one of an ECG monitoring mode, a defibrillation mode, and a pacing mode includes a processor, patient treatment circuitry coupled to the processor, and one or more electronic ports coupled to the processor. The processor is for receiving signals from the at least one sensor to obtain an indication of an Electrocardiogram (ECG) of the patient, wherein the medical device further comprises a front panel configured to provide feedback information regarding a quality of CPR including a depth of compression when the medical device is operated with the CPR accessory in a defibrillation mode, the feedback information configured to be presented on a screen of the front panel in place of at least a portion of the ECG indication in the event that the processor receives an indication that the CPR accessory is coupled to the medical device and an indication that the CPR accessory has received chest compressions during CPR.

According to the above aspect, the feedback information comprises a CPR depth map and a scale mark arranged on one side of the CPR depth map, the scale mark presenting a reference mark on the CPR depth map, the CPR depth map being displayed during CPR in response to chest compressions replacing at least a portion of the ECG indication.

In accordance with at least one of the above aspects, the feedback information includes a CPR dashboard, wherein the medical device, in a defibrillation mode, replaces defibrillation information displayed on the screen of the front panel during non-CPR, the CPR dashboard being displayed during CPR.

According to at least one of the above aspects, the CPR dashboard includes CPR messages including feedback and guidance to a CPR administrator performing CPR, a CPR rate display configured to display a numerical value indicative of a current chest compression rate determined by the processor from an indication received from the CPR accessory, and a compression detection indicator configured to provide a compression signal in response to each compression detected by the CPR accessory.

In accordance with at least one of the above aspects, the CPR message includes feedback on the rate of release of compressions released from the chest after the compression.

According to at least one of the above aspects, the medical device further comprises: a plurality of quick access keys disposed on a front panel at one side of a screen, wherein the screen is configured to display tabs of adjacent one or more quick access keys on the screen. For the respective key, the label shows the function of the respective key corresponding to one of the ECG monitoring mode, defibrillation mode and pacing mode.

According to at least one of the above aspects, the plurality of quick access keys provide a first level of functionality, and a plurality of second level keys for a next level of functionality derived from the plurality of quick access keys are provided as soft keys displayed on the screen of the front panel.

According to at least one of the above aspects, the front panel further comprises a fine adjustment knob allowing navigation of a cursor on a screen of the front panel upon rotation of the fine adjustment knob and allowing selection of a region associated with the cursor highlight in the event that the fine adjustment knob is pressed.

In accordance with an aspect of the present disclosure, a multi-mode medical device configured to operate in one of an ECG monitoring mode, a defibrillation mode, and a pacing mode includes a processor, patient treatment circuitry coupled to the processor, and one or more electronic ports coupled to the processor. The processor is for receiving a signal from the at least one sensor to obtain an indication of an Electrocardiogram (ECG) of the patient, wherein the medical device further comprises a front panel, a screen of the front panel is configured to display an alarm text message on an upper portion of the screen corresponding to and triggered by the alarm trigger condition, and the screen is configured to change a display characteristic of the digital display of the physiological parameter in response to the alarm trigger condition in the ECG monitoring mode.

According to at least one of the above aspects, in response to the alarm triggering condition, a display characteristic of the digital display of the physiological parameter in the ECG monitoring mode is changed to be displayed in red text on a white background.

According to at least one of the above aspects, the alert text message is configured to be displayed according to a color corresponding to a priority of the alert triggering condition.

According to at least one of the above aspects, the front panel comprises a plurality of visual alarm indicators arranged side by side on top of the front panel and an audible alarm indicator arranged as a speaker at a lower corner portion of the front panel, the visual and audible alarm indicators being configured to operate together according to a priority of the alarm triggering condition, and the speaker being further configured to present audible feedback and guidance during cardiopulmonary resuscitation in the defibrillation mode.

In accordance with an aspect of the present disclosure, a multi-mode medical device configured to operate in one of an ECG monitoring mode, a defibrillation mode, and a pacing mode includes a processor, patient treatment circuitry coupled to the processor, and one or more electronic ports coupled to the processor. The processor is for receiving signals from the at least one sensor to obtain an indication of an Electrocardiogram (ECG) of the patient, wherein the medical device further comprises a front panel having a screen, wherein the device further comprises a plurality of quick access keys disposed on the front panel on one side of the screen, and a fine adjustment knob on the front panel. Wherein the fine adjustment knob is configured to rotate to allow navigation between a plurality of selection items and is configured to be pressed to allow selection of one of the plurality of selection items, and the quick access key is configured to facilitate navigation between a plurality of functions of the medical device.

According to at least one of the above aspects, one of the plurality of quick access keys is configured to provide a selection of a source of ECG signals to be displayed on the screen, and the one of the plurality of quick access keys and the fine adjustment knob are configured to operate together to set a source and display size of ECG waveforms.

According to at least one of the above aspects, the processor is configured to generate a report of a trend of a vital sign of a patient, a snapshot of an event, and/or an event log of a significant event, and transmit the generated report, snapshot, and/or event log to a device separate from the medical device via a wired or wireless connection.

According to at least one of the above aspects, the medical device comprises a printing module for printing the report, snapshot and/or log on paper and a paper cassette, and a door of the paper cassette is arranged on a front panel of the medical device.

According to at least one of the above aspects, the medical device may capture data for a particular time interval associated with an event related to a patient according to user settings and/or automatically.

According to at least one of the above aspects, the processor is configured to automatically capture and save up to 6 seconds of physiological waveform and other data prior to the event and 12 seconds of data after the event.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure.

Fig. 1 shows a diagram of a front panel of a medical device 100 according to one embodiment of the present disclosure.

Fig. 2A, 2B illustrate front and back views of a medical device 200 according to one embodiment of the present disclosure.

Fig. 3 shows a schematic view of the display on the screen 108 when the

medical device

100, 200 is operating in the monitoring mode.

Fig. 4A shows an exemplary view of a plurality of primary soft keys displayed on the left side of screen 108 corresponding to a plurality of quick access keys 106 in the monitor mode of medical device 100.

FIG. 4B illustrates an exemplary diagram of a plurality of secondary keys.

FIG. 5 illustrates an example screenshot of a patient when it is alarming.

Fig. 6 shows an example of an operational screenshot of selecting an ECG source to display in the monitor mode.

Fig. 7 illustrates an example of an operational screenshot of resizing a displayed ECG waveform.

Fig. 8 shows an example of a screenshot of medical device 100 in a defibrillation mode.

Figure 9 shows an example of a screenshot containing CPR feedback and guidance information.

Fig. 10-13 show schematic diagrams of screenshots of a summary report, an event log, a defibrillation shock snapshot, and a start pacing snapshot generated by the

medical devices

100, 200, respectively.

Detailed Description

Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the term "at least one" herein means any one of a plurality or any combination of at least two of a plurality, for example, including at least one of A, B, C, and may mean including any one or more elements selected from the group consisting of A, B and C.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.

Fig. 1 shows a diagram of a front panel of a medical device 100 according to one embodiment of the present disclosure. The multi-mode medical device 100 is configured to operate in any one of an ECG monitoring mode, a defibrillation mode, and a pacing mode. The medical device 100 includes a processor, patient treatment circuitry connected to the processor, one or more electronic ports connected to the processor. The one or more electronic ports are for receiving signals from at least one sensor to obtain an indication of a patient ECG from the sensor. The medical device 100 includes a front panel. When the medical device 100 is operating with a CPR accessory in a defibrillation mode, the front panel of the medical device 100 is used to provide feedback information regarding the quality of CPR. During CPR, where the processor receives an indication that a CPR accessory is connected to the medical device 100 and an indication that the CPR accessory receives chest compressions, CPR feedback information is configured to be presented on the screen 108 of the front panel in place of at least a portion of the ECG indications originally displayed at the same location of the screen 108.

The left side of the front panel of medical device 100 (i.e., the left outer portion of display screen 108) may be configured with five quick access keys 106 from top to bottom, which may be configured to control different functions of medical device 100. The labels of the quick access keys 106 are displayed on the display screen to the right of each key to identify the corresponding function. The

visual alert indicators

102, 104 are located on top of the front panel. The

indicators

102, 104 may be a red indicator light and a yellow indicator light, respectively. The

indicators

102, 104 may light up or flash depending on the priority level of the patient alarm and the device alarm. The mode selector 110 is used for the user to select the operation mode. The mode selector 110 may be classified as OFF (OFF), MONITOR (MONITOR), Defibrillation (DEFIB), Pacing (PACER) for user selection. The front panel of the medical device 100 is also provided with a print button 114 that can be used to start or stop printing reports, snapshots and/or logs output by the medical device 100. A fine adjustment knob 112 is located below the screen 108 on the front panel, and rotating the knob 112 clockwise or counterclockwise moves a cursor on the screen 108 downward or upward, thereby assisting a user in browsing the screen, browsing vertical lists, modifying parameter settings, and the like. Pressing the jog dial 112 may select the area of the screen 108 that is highlighted. Speaker 118 may be disposed at the bottom corner of the front panel and may be used as an audible alarm indicator to sound a voice alarm and may also be used to sound voice CPR feedback and guidance information during CPR. The medical device 100 is also provided with a paper storage cassette for printing. The paper storage cassette door 116 may be disposed at the bottom of the front panel, below the fine adjustment knob 112.

Fig. 2A, 2B illustrate front and back views of a medical device 200 according to one embodiment of the present disclosure. As shown in fig. 2A, the medical device 200 may have a handle 1, a display screen 2 on the front panel, a speaker 3, a paper storage cassette 4, and a defibrillation handle attached to the left and right sides of the medical device 200. As shown in fig. 2B, the medical device 200 may have a battery compartment 6, a patient connector 7, a ground hole 8, an AC power connector 9, and a USB port 10.

Fig. 3 shows a schematic view of the display on the screen 108 when the

medical device

100, 200 is operating in the monitoring mode. As shown in fig. 3, screen 108 displays the layout of the ECG parameter values, waveforms, system data, and quick access key labels. Some of the plurality of quick access keys may not have a function tag corresponding thereto. Screen 108 may display various items of information in user-configurable colors. In particular, the elapsed time since the medical device 100 was turned on may be displayed in the upper right corner of the screen 108. The source of each waveform, namely the name of the corresponding electrocardiogram lead, can be displayed at the upper left corner of each waveform. Screen 108 may also be configured to display other messages and prompts not shown in fig. 3.

Fig. 4A shows an exemplary view of a plurality of primary soft keys displayed on the left side of screen 108 corresponding to a plurality of quick access keys 106 in the monitor mode of medical device 100. FIG. 4B shows a schematic diagram of a plurality of secondary keys. The function of some quick access keys may change when medical device 100 switches between monitor, defibrillation, and pacing modes. When the "more/back" key shown at the bottom of FIG. 4A is pressed, other keys, such as the secondary key shown in FIG. 4B, are displayed. That is, the display of the secondary quick access key may be triggered by the primary quick access key. As shown in fig. 4A, the top lead selection quick access key may be used to select the ECG input source for the top of screen waveform traces used for calculating heart rate, synchronized defibrillation and on-demand pacing. A diagnostic ECG quick access key may be provided below the lead selection key. A first aid sign quick access key (P) can be arranged below the diagnosis key_X) For the user to add clinical treatment annotations to the patient record.

A patient alarm may be issued when the physiological parameter monitored by the medical device 100 is out of range. The status of the patient alarm may be indicated in a number of ways, such as a beeping alarm tone, a text message, and the illumination and flashing of indicator lights of the

visual alarm indicators

102, 104 on the front panel of the device. A device alarm may be issued when the medical device 100 detects a device problem associated with the device that may adversely affect or limit operation. The status of the device alarm may be indicated in a variety of ways, such as by a beeping alarm tone, a text message, and the illumination and flashing of indicator lights of the

visual alarm indicators

102, 104 on the front panel of the device. Patient alarms are always classified as high priority alarms. And device alarms may be classified as high, medium, and low priority alarms.

FIG. 5 illustrates an example screenshot of a patient when it is alarming. When the patient's vital sign reading triggers an alarm, an alarm tone may be sounded and the indicator lights of the

visual alarm indicators

102, 104 illuminated, the medical device 100 may also display an alarm text message corresponding to the condition triggering the alarm in the status/alarm message field and may alter the display characteristics of the monitoring function digital display. In one embodiment, when the patient is alarmed, the alarm parameters displayed, for example, in the upper right hand corner of screen 108 may be displayed in red text on a white background. In this example, the heart rate has risen to a value of 160bpm above the upper alarm limit.

When a problem occurs with the

medical device

100, 200 or a sensor to which it is connected and an alarm is triggered, an alarm message may be displayed in the status/alarm message field according to the priority level of the device alarm. For example, the device alert message may be displayed in a background color and text color corresponding to the priority level. The indicator lights of the

visual alert indicators

102, 104 may also be illuminated and flash in combination depending on the priority level of the alert.

In one particular implementation, the

medical device

100, 200 allows a user to set alarm limits for triggering an alarm.

In one particular example, the alarm limit may be viewed or altered in an "alarm limit settings" window. In one example implementation, the alarm setting is automatically restored when the power is off for less than 30 seconds; if the power is off for more than 30 seconds, the alarm setting will revert to the default alarm setting.

In one particular implementation, the bottom most "more" quick access key of quick access keys 106 may be pressed, followed by the "limit" (i.e., alarm limit) quick access key, causing an "alarm limit setting" window to appear. In another example, the "menu" button on the front panel may also be pressed one or more times until the "alarm limit settings" window appears. The fine adjustment knob 112 may be rotated to highlight the "alarm limit" field and then the knob 112 may be pressed to select it.

In one particular implementation, the fine tuning knob may be rotated to highlight the vital sign state or limit to be adjusted, which is then selected by pressing the knob 112. Upon selection, the field to be adjusted may change the display characteristic, for example, to green. The value of the alarm limit may be changed by rotating the fine adjustment knob 112 clockwise or counterclockwise and then depressing the knob 112 to select a new value.

In one particular implementation, when the change is completed, one of two operations may be performed to exit the alarm limit setting: rotating the fine adjustment knob 112 to the exit symbol (i.e., X) in the upper right corner of the alarm limit setting window and pressing the knob 112 to exit the window; the alarm limit setting window is exited by pressing the "menu" button on the front panel.

When the

medical device

100, 200 is in the monitor mode, in one particular implementation, a maximum of four waveforms may be displayed on the screen 108. In one example, the first waveform displayed at the top of screen 108 is always an electrocardiographic waveform.

The

medical device

100, 200 may display different default top waveform traces depending on the current mode of operation. In one particular implementation, in pacing and monitoring modes, the default electrocardiographic waveform is lead II; in both "manual defibrillation" and "AED" modes, the default electrocardiographic waveform is "electrode pad/defibrillation handle"; in "manual defibrillation," "monitor," and "pace" modes, the default waveform displayed at the top of screen 108 may be selected in the "super" menu. The source of the waveform available is determined by the type of ecg cable connected to the device.

By way of example, there are at least two ways to specify which cardiac lead is the source of the primary (top) waveform trace:

pressing the electrocardio lead from the quick access keys 106 to select the quick access key so as to display available electrocardio lead waveforms in sequence; or

The fine tuning knob 112 is rotated to browse the source labels of the primary electrocardiographic waveforms (lead I is displayed in the next screen) and then the knob is pressed to select them. The M2 device then displays the available electrocardiographic waveform source. Lead I may be selected (default) or the fine tuning knob 112 may be rotated to highlight and the knob 112 may be pressed to select another displayed cardiac lead as the source of the waveform trace.

Fig. 6 shows an example of an operational screenshot of selecting an ECG source to display in the monitor mode. As shown in FIG. 6, in this example, lead II (RA-LL) is the source of the ECG waveform trace. Pressing the lead select quick access key 106, the available ECG lead waveforms may be displayed in sequence. Fine adjustment knob 112 can now be rotated to see lead I displayed in the next screen, and then knob 112 can be pressed to select lead I, thereby displaying the waveform of lead I.

When the source of the waveform currently being acquired is selected, the

medical device

100, 200 may immediately display the waveform. If the selected source of waveforms is not currently available, the device may display a drop of a dotted line and message lead (for "electrocardiogram leads") or a stick or check electrode pad-short (for "electrode pads"). If the user selects the "defibrillation handle," the medical device may always display the "defibrillation handle" cardiac signal (solid line) even if the defibrillation handle is shorted or opened.

The

medical device

100, 200 allows for resizing of the displayed ECG waveform. The default track size displayed is, for example, 1 cm/mV. The user may select a larger (1.5, 2.0, 3.0cm/mV) or smaller (0.125, 0.25, 0.5cm/mV) trace size, or automatically selected by the

medical device

100, 200.

Fig. 7 illustrates an example of an operational screenshot of resizing a displayed ECG waveform. On the right side of the electrode label, above the wavy trace, there is shown a trace size in units of, for example, cm/mV. The user-desired display trace size may be selected from a drop-down menu of trace sizes through operation of the knob 112.

In one particular implementation, a user's heart rate table may be displayed in the upper right corner of screen 108. The heart rate meter displays the QRS comprehensive frequency generated by the electrocardio monitoring function. The cardiotachometer can always calculate the heart rate from the top waveform. The heart rate table may be labeled as "heart rate" (e.g., "HR" shown in the upper right corner of screen 108 in fig. 3, 5, 6, and 7).

In one particular implementation, the

medical device

100, 200 allows a user to enable and disable Heart Rate (HR) alarms, set alarm limits, and select the volume of the QRS detection alert tone. Default heart rate alarm settings (enable/disable, alarm limits, etc. may be configured by the supervisor.

In one particular implementation, when a heart rate alarm is enabled, the

medical device

100, 200 may sound and/or display an alarm whenever the patient's heart rate is above or below a specified heart rate alarm limit. The user may enable (or disable) the heart rate alarm and use an alarm limit quick access key (see "limit" quick access key tab shown at the top of fig. 4B) of the quick access keys 106 to set the upper and lower limits of the alarm limit.

In one particular implementation, the heart rate alarm may be configured via an alarm limit quick access key. For example, the "alarm limit" menu may be entered by pressing the "more" quick access key and then pressing the "alarm limit" quick access key. The fine tune button 112 may be rotated to select the heart rate field that is desired to be altered. By "state", the heart rate alarm function can be turned on or off. Corresponding alarm limit value setting can be carried out through the upper limit and the lower limit. If the settings are to be changed, the fine tune button 112 can be pressed and the vital signs field can then change the display characteristics accordingly, e.g., the field can change to green. The value may be changed by rotating the fine adjustment knob 112 clockwise or counterclockwise and then pressing the knob 112 to select a new value.

In one implementation, if the

medical device

100, 200 is in "monitor" or "defibrillation" mode (with some AED configurations) when the "heart rate" alarm is turned on, the device will perform a continuous analysis of the cardiac top waveform trace. If, for example, ventricular fibrillation or wide-ventricular tachycardia is detected, the "check patient" alarm function sounds an alarm and displays a "check patient" message. If the device is in "pace" mode when the "heart rate" alarm is on, the device will display a disable VF/VT alarm message indicating that the "check patient" alarm function has been disabled.

Fig. 8 shows an example of a screenshot of medical device 100 in a defibrillation mode. As shown in fig. 8, the bottom of screen 108 displays a defibrillation message including the number of defibrillation shocks, defibrillation shock energy, etc.

Figure 9 shows an example of a screenshot containing CPR feedback and guidance information. As shown in fig. 9, the CPR dashboard will display at the bottom of screen 108 a measurement of CPR frequency, a CPR message, and a compression detection indicator. In defibrillation mode, the CPR dashboard will only be displayed during CPR and replaced with a defibrillation message such as that shown in fig. 8 during non-CPR. In other words, in the event that the

medical device

100, 200 has been connected to a CPR accessory and the CPR accessory has detected chest compressions, CPR feedback and guidance information including the CPR dashboard may be displayed at the bottom of the screen in place of the lowest waveform trace on the screen 108.

As shown in fig. 9, the CPR frequency value shows the frequency of the current chest compressions, i.e. the number of compressions per minute, as determined by the

medical device

100, 200. The compression signal from the CPR compression detection indicator flashes with each detected compression to notify the user device that a compression operation by the CPR rescuer may be detected. During CPR, the default value for compression depth is 5 centimeters. The

medical device

100, 200 may periodically issue a "hard press" voice prompt when chest compressions are detected but at a target compression depth of less than 5.08 centimeters. If the CPR rescuer responds and gradually increases the compression depth to a level that exceeds the target depth, the

medical device

100, 200 may issue a "good compression" prompt.

As shown in the "CPR message" column in fig. 9, the CPR dashboard may display text messages such as "as pulse free, cardiopulmonary resuscitation initiated", "good compressions", etc. to provide feedback to the rescuer performing CPR.

As shown in fig. 9, the

medical device

100, 200 may display a CPR compression depth bar chart on the screen 108 at a scan speed of, for example, 12.5 mm/sec. The bar graph may be calculated from the sensor sensing the compression signal in the CPR accessory and displayed above the CPR dashboard. The bar graph represents the depth of compression applied at chest compressions, may be represented on a displacement scale of, for example, 0-7.62 centimeters, and may display reference marks represented by dashed lines at, for example, 0, 5.08, and 6.096 centimeters. The bar graph may continue to be displayed on the screen until the user selects a different waveform, or the defibrillation mode is exited.

Although not shown in fig. 9, screen 108 may also provide release feedback related to the release of chest compressions during CPR. In release feedback, the processor of the

medical device

100, 200 estimates the release rate from the chest compression sensor. Note that as part of the CPR accessory, the chest compression sensor may be an accelerometer placed on the chest during chest compressions. Release feedback may prompt the CPR rescuer to ensure that chest compressions are sufficiently released so that the chest wall can naturally retract to its natural equilibrium. Venous return of blood to the heart is improved when the CPR rescuer is able to adequately release (rather than leaning on the patient). As an example, an accelerometer as part of the CPR accessory may provide a measurement of the release rate below a threshold, and the

medical device

100, 200 may notify the CPR rescuer that the release rate from the chest is insufficient; conversely, if the release rate is above a threshold, the device may notify the CPR rescuer that the release rate is acceptable.

During each patient monitoring, the

medical devices

100, 200 may continuously record and maintain important rescue event information in separate case files. In one implementation, an event (case) file may contain all snapshots of each rescue event, all displayed waveforms, all monitored parameter trends, and complete disclosure data. In one implementation, in the event that the data storage space provided for the current rescue event is full, additional patient data may be stored in the new case file by turning off the medical device for a certain period of time (e.g., 30 seconds) and then turning the medical device back on. In one particular implementation, the medical device may store completed cases until its storage space is full, and then may delete old case cases one by one, for example, to make storage space for new events that are currently occurring.

The actual information stored by the medical device depends on the use case. For example, the particular combination of stored continuous waveform data depends on the configuration of the waveform recording settings in the menu.

In one particular implementation, the medical device may automatically record all snapshot events during a rescue event, such as defibrillation events, pacing mode information, heart rate alarms, and the start of an electrocardiographic monitoring event.

Fig. 10-13 show schematic diagrams of a summary report, an event log, a defibrillation shock snapshot, and a start pacing snapshot generated by the

medical devices

100, 200, respectively.

The

medical device

100, 200 will automatically record all snapshot events during the medical rescue event, such as defibrillation events (ecg, shock release), pacing mode information, etc. The medical device may store and print the summary information in chronological order. In one particular implementation, the memory allocated to the summary data may hold more than 1000 defibrillator or recorder activation events. Each summary report begins with a summary of all events currently stored in memory. A summary report of the rescue event may be printed out by the

medical device

100, 200 to the user.

The event log is an abbreviated list of all events recorded in the summary report from the beginning of the medical rescue. For example, a user may print an event log containing events such as power on, cardiac electrical analysis, defibrillation shocks, etc. and their times of occurrence using the

medical device

100, 200.

The

medical device

100, 200 may capture data for a particular time interval associated with an event related to a patient according to user settings and/or automatically. In one particular implementation, when an event described in the event log occurs, the

medical device

100, 200 may automatically capture and save a physiological waveform for up to, for example, 6 seconds, other data before the event occurs, and data after the event occurs, for example, 12 seconds. The capture of data at this time is referred to as a snapshot. The recording of the snapshot may be initiated automatically or by the user. In one particular implementation, a snapshot of "start pacing" is taken upon entering the "pace" mode, and the patient's cardiac rhythm may be displayed within six seconds before pacing begins and 12 seconds thereafter.

The recorded data is stored in a non-volatile memory of the device and may be printed out during or after a restart time. Each snapshot may contain, for example, the following information: snapshot type, time date and event, start time and date of the printed ECG, heart rate at the start of the event, primary lead name, etc.

It is understood that the above-mentioned embodiments of the present disclosure can be combined with each other to form a combined embodiment without departing from the logic of the principle, which is limited by the space, and the detailed description of the present disclosure is omitted.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terms used herein were chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the techniques in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A multi-mode medical device configured to operate in one of an ECG monitoring mode, a defibrillation mode, and a pacing mode, the medical device comprising a processor for receiving signals from at least one sensor to obtain an indication of a patient's ECG, patient treatment circuitry coupled to the processor, and one or more electronic ports coupled to the processor,

the medical device further includes a front panel configured to provide feedback information regarding CPR quality including compression depth when the medical device is operating with a CPR accessory in the defibrillation mode, the feedback information being presented on a screen of the front panel in place of at least a portion of an ECG indication if the processor receives an indication that the CPR accessory is coupled to the medical device and an indication that the CPR accessory has received chest compressions during CPR.

2. The device of claim 1, the feedback information comprising a CPR depth map and a graduated marking disposed on one side of the CPR depth map, the graduated marking presenting a reference mark on the CPR depth map, and the CPR depth map being displayed in response to chest compressions during CPR replacing at least a portion of an ECG indication.

3. The device of claim 1, the feedback information comprising a CPR dashboard, wherein the medical device, in a defibrillation mode, replaces defibrillation information displayed on the screen of the front panel during non-CPR, the CPR dashboard being displayed during CPR.

4. The device of claim 3, the CPR dashboard including a CPR message, a CPR rate display, and a compression detection indicator,

the CPR message includes feedback and guidance to the CPR administrator performing CPR,

the CPR rate display is configured to display a numerical value indicative of a current rate of chest compressions determined by the processor from the indication received from the CPR accessory, and the compression detection indicator is configured to provide a compression signal in response to each compression detected by the CPR accessory.

5. The device of claim 4, the CPR message including feedback on the rate of compression release from the chest following the compression.

6. The device of claim 1, the medical device further comprising: a plurality of quick access keys disposed on the front panel on one side of the screen, wherein the screen is configured to display on the screen adjacent to at least one of the plurality of quick access keys a label for the respective quick access key that shows a function of the respective key corresponding to one of the ECG monitoring mode, defibrillation mode and pacing mode.

7. The device of claim 6, the plurality of quick access keys providing a first level of functionality and a plurality of second level keys for a next level of functionality derived from the plurality of quick access keys being provided as soft keys displayed on a screen of the front panel.

8. The device of claim 6, said front panel further comprising a fine adjustment knob allowing cursor navigation on a screen of said front panel upon rotation of said fine adjustment knob and allowing selection related to a cursor highlight area upon depression of said fine adjustment knob.

9. The device of claim 1, the screen of the front panel being configured to display an alarm text message corresponding to and triggered by an alarm triggering condition at an upper portion of the screen, and the screen being configured to change a display characteristic of the digital display of the physiological parameter in response to the alarm triggering condition in the ECG monitoring mode.

10. The device of claim 9, wherein a display characteristic of a digital display of a physiological parameter in the ECG monitoring mode is changed to be displayed in red text on a white background in response to the alarm-triggering condition.

11. The device of claim 9, the alert text message configured to be displayed according to a color corresponding to a priority of the alert triggering condition.

12. The device of claim 9, the front panel comprising a plurality of visual alarm indicators and an audible alarm indicator arranged side-by-side on top of the front panel, the audible alarm indicator arranged as a speaker at a lower corner portion of the front panel, the visual and audible alarm indicators configured to operate together according to a priority of the alarm trigger condition, and the speaker further configured to present audible feedback and guidance during CPR in the defibrillation mode.

13. The device of claim 1, further comprising a plurality of quick access keys disposed on the front panel on one side of the screen and a fine adjustment knob on the front panel,

wherein the fine adjustment knob is configured to rotate to allow navigation between a plurality of selection items and to be pressed to allow selection of one of the plurality of selection items, and the quick access key is configured to facilitate navigation between functions of the medical device.

14. The device of claim 13, one of the plurality of quick access keys configured to provide a selection of a source of ECG signals to be displayed on the screen, and the one of the plurality of quick access keys and the fine adjustment knob configured to operate together to set a source and display size of ECG waveforms.

15. The device of claim 1, the processor configured to generate a report of trends in patient vital signs, a snapshot of events, and/or an event log of significant events, and transmit the generated report, snapshot, and/or event log to a device separate from the medical device via a wired or wireless connection.

16. The device of claim 15, the medical device comprising a printing module and a paper cassette for printing the reports, snapshots and/or logs on paper, and a door of the paper cassette is disposed on the front panel of the medical device.

17. The apparatus of claim 1, the processor configured to automatically capture and save up to 6 seconds of physiological waveform and other data prior to an event and 12 seconds of data after the event.

18. A multi-mode medical device configured to operate in one of an ECG monitoring mode, a defibrillation mode, and a pacing mode, the medical device comprising a processor for receiving signals from at least one sensor to obtain an indication of a patient's ECG, patient treatment circuitry coupled to the processor, and one or more electronic ports coupled to the processor,

the medical device further comprises a front panel, a screen of the front panel being configured to display an alarm text message corresponding to and triggered by an alarm triggering condition on an upper portion of the screen, and the screen being configured to change a display characteristic of the digital display of the physiological parameter in response to the alarm triggering condition in the ECG monitoring mode.

19. The device of claim 18, wherein a display characteristic of a digital display of a physiological parameter in the ECG monitoring mode is changed to be displayed in red text on a white background in response to the alarm-triggering condition.

20. The device of claim 18, the alert text message configured to be displayed according to a color corresponding to a priority of the alert triggering condition.

21. The device of claim 18, the front panel comprising a plurality of visual alarm indicators arranged side-by-side on top of the front panel and an audible alarm indicator arranged as a speaker at a lower corner portion of the front panel, the visual and audible alarm indicators configured to operate together according to a priority of the alarm trigger condition, and the speaker further configured to present audible feedback and guidance during CPR in the defibrillation mode.

22. The device of claim 18, the front panel configured to provide feedback information regarding CPR quality including compression depth when the medical device is operating with a CPR accessory in the defibrillation mode,

in the event that the processor receives an indication that the CPR accessory is coupled to the medical device and an indication that chest compressions have been received by the CPR accessory during CPR, the feedback information is presented on the screen of the front panel in place of at least a portion of the ECG indication.

23. The device of claim 18, the screen of the front panel being configured to display an alarm text message corresponding to and triggered by an alarm triggering condition at an upper portion of the screen, and the screen being configured to change a display characteristic of the digital display of the physiological parameter in response to the alarm triggering condition in the ECG monitoring mode.

24. A multi-mode medical device configured to operate in one of an ECG monitoring mode, a defibrillation mode, and a pacing mode, the medical device comprising a processor for receiving signals from at least one sensor to obtain an indication of a patient's ECG, patient treatment circuitry coupled to the processor, and one or more electronic ports coupled to the processor,

the medical device further includes a front panel having a screen, the medical device further including a plurality of quick access keys disposed on the front panel to one side of the screen and a fine adjustment knob on the front panel, wherein the fine adjustment knob is configured to be rotated to allow navigation among a plurality of selection items and pressed to allow selection of one of the plurality of selection items, and the quick access keys are configured to facilitate navigation among a plurality of functions of the medical device.

25. The device of claim 24, one of the plurality of quick access keys configured to provide a selection of a source of ECG signals to be displayed on the screen, and the one of the plurality of quick access keys and the fine adjustment knob configured to operate together to set a source and display size of ECG waveforms.

26. The device of claim 24, the processor configured to generate a report of a trend of a patient vital sign, a snapshot of an event, and/or an event log of a significant event, and transmit the generated report, snapshot, and/or event log to a device separate from the medical device via a wired or wireless connection.

27. The device of claim 24, the medical device comprising a printing module and a paper cassette for printing reports, snapshots and/or logs on paper, and a door of the paper cassette is disposed on the front panel of the medical device.

28. The apparatus of claim 24, the processor configured to automatically capture and save up to 6 seconds of physiological waveform and other data prior to an event and 12 seconds of data after the event.

29. The device of claim 24, the front panel configured to provide feedback information regarding CPR quality including compression depth when the medical device is operating with a CPR accessory in the defibrillation mode,

30. The device of claim 24, the screen of the front panel being configured to display an alarm text message corresponding to and triggered by an alarm triggering condition at an upper portion of the screen, and the screen being configured to change a display characteristic of the digital display of the physiological parameter in response to the alarm triggering condition in the ECG monitoring mode.

31. The device of claim 24, wherein the medical device can capture data associated with an event related to a patient based on user settings and/or automatically for a particular time interval.

32. A multi-mode medical device configured to operate in one of an ECG monitoring mode, a defibrillation mode, and a pacing mode, the medical device comprising a processor for receiving signals from at least one sensor to obtain an indication of a patient's ECG, patient treatment circuitry coupled to the processor, and one or more electronic ports coupled to the processor,

the medical device may capture data for a particular time interval associated with an event related to a patient according to user settings and/or automatically.

33. The device of claim 32, the medical device further comprising a front panel configured to provide feedback information regarding CPR quality including compression depth when the medical device is operating with a CPR accessory in the defibrillation mode, the feedback information being presented on a screen of the front panel in place of at least a portion of an ECG indication if the processor receives an indication that the CPR accessory is coupled to the medical device and an indication that the CPR accessory has received chest compressions during CPR.

34. The device of claim 33, the screen of the front panel being configured to display an alarm text message corresponding to and triggered by an alarm triggering condition at an upper portion of the screen, and the screen being configured to change a display characteristic of the digital display of the physiological parameter in response to the alarm triggering condition in the ECG monitoring mode.

35. The device of claim 33, further comprising a plurality of quick access keys disposed on the front panel to one side of the screen and a fine adjustment knob on the front panel,