US-12620410-B2 - Aligning parameter data with audio recordings

Abstract

Various techniques relate to aligning parameters and audio recordings obtained at a rescue scene. An example method includes receiving, from a first device, a first file including first measurements of a first parameter at first discrete times in a time interval. The first file further indicates a marker output by the first device during the time interval. The method also includes receiving, from a second device, a second file comprising second measurements of a second parameter at second discrete times in the time interval. The method includes detecting the marker output by the first device in the second measurements of the second parameter and based on detecting the signal output by the first device in the second measurements, generating aligned data by time-aligning the first measurements of the first parameter and the second measurements of the second parameter. The method further includes outputting the aligned data.

Inventors

• Steven Barry Duke
• Fred W. Chapman

Assignees

• STRYKER CORPORATION

Dates

Publication Date

20260505

Application Date

20220715

Claims (20)

1. 1 . A system comprising: a defibrillator comprising: a sensor configured to detect values of a physiological parameter of a patient in an environment at discrete times in a time interval; a speaker configured to output an audible marker into the environment at a particular time among the discrete times; a first processor configured to generate monitor data comprising: a parameter channel indicating the values of the physiological parameter at the discrete times; and a marker channel indicating the audible marker output at the particular time; and a first transceiver configured to transmit the monitor data; and a synchronizer comprising: a second transceiver configured to receive the monitor data from the defibrillator and to receive recorder data from a recording device that is separate from the defibrillator, the recorder data being indicative of an audio recording of the environment during the time interval; a second processor configured to: detect the audible marker in the audio recording; and generate aligned data by aligning the parameter channel and the audio recording based on the audible marker indicated in the marker channel and detected in the audio recording; and an output device configured to output the aligned data.
2. 2 . The system of claim 1 , wherein the second processor is further configured to: identify words spoken by a rescuer by performing speech-to-text on an additional sound in the audio recording; and generate a record associated with the patient based on the words.
3. 3 . The system of claim 1 , wherein the recording device comprises a mobile phone or a wearable device.
4. 4 . A synchronizer, comprising: a receiver configured to: receive monitor data from a medical device, the monitor data comprising: a first channel indicating values of a physiological parameter of a patient detected by the medical device during a time interval; and a second channel indicating a marker output by the medical device into an environment during the time interval; and receive recording data from a recording device that is separate from the medical device, the recording data comprising: a third channel comprising an audio recording of the environment during the time interval; a processor; and memory storing instructions that, when executed by the processor, cause the processor to perform operations comprising: identifying the marker in the third channel comprising the audio recording of the environment; and based on identifying the marker in the third channel comprising the audio recording of the environment, generating aligned data comprising: the first channel; and the third channel time-aligned with the first channel.
5. 5 . The synchronizer of claim 4 , further comprising: an output device configured to output the aligned data, the output device comprising a screen and a speaker, wherein the output device is configured to output the aligned data by simultaneously: displaying, on the screen, an animation of a waveform of the physiological parameter; and outputting, by the speaker, the audio recording of the environment.
6. 6 . The synchronizer of claim 4 , wherein the operations further comprise: identifying a voice notation in the audio recording of the environment; determining, based on the aligned data, a discrete time in the time interval when the voice notation occurred; and generating a record associated with the patient, the record indicating the voice notation and the discrete time when the voice notation occurred.
7. 7 . The synchronizer of claim 6 , wherein identifying the voice notation comprises determining that a rescuer has administered a treatment to the patient by performing speech-to-text on the audio recording, and wherein the record further indicates the treatment administered to the patient.
8. 8 . The synchronizer of claim 4 , wherein the marker comprises a power up sound of the medical device, a power off sound of the medical device, an audible instruction output by the medical device, or an alarm output by the medical device.
9. 9 . The synchronizer of claim 4 , wherein the medical device comprises a defibrillator, and wherein the recording device comprises a mobile device or a wearable device.
10. 10 . The synchronizer of claim 4 , wherein the physiological parameter comprises an electrocardiogram (ECG), an oxygenation of the patient's blood, an amount of carbon dioxide in the patient's breath, a heart rate of the patient, a blood pressure of the patient, a carboxyhemoglobin level of the patient's blood, a temperature of the patient, a respiration rate of the patient, or a pulse rate of the patient.
11. 11 . The synchronizer of claim 4 , wherein the medical device and the recording device have different internal clocks.
12. 12 . The synchronizer of claim 4 , wherein the first channel of the monitor data indicates the values of the physiological parameter at a first sampling rate, wherein the third channel of the recording data indicates the audio recording of the environment at a second sampling rate, and wherein the first sampling rate is different than the second sampling rate.
13. 13 . The synchronizer of claim 4 , wherein the monitor data further comprises a fourth channel comprising first timestamps, wherein the recording data further comprises a fifth channel comprising second timestamps, and wherein the first timestamps are different than the second timestamps.
14. 14 . A method, comprising: receiving, from a first device, a first file comprising: a first channel comprising first measurements of a first parameter at first discrete times in a time interval; and a second channel comprising an indication of a marker output by the first device during the time interval; receiving, from a second device that is separate from the first device, a second file comprising a third channel that comprises second measurements of a second parameter at second discrete times in the time interval; detecting, by analyzing the third channel, the marker output by the first device in the second measurements of the second parameter; based on detecting the marker output by the first device in the second measurements, generating aligned data comprising the first channel time-aligned with the third channel; and outputting the aligned data.
15. 15 . The method of claim 14 , wherein the first device comprises a defibrillator and the second device comprises a mobile device or a wearable device.
16. 16 . The method of claim 14 , wherein the first parameter comprises an electrocardiogram (ECG) of a patient, an oxygenation of the patient's blood, an amount of carbon dioxide in the patient's breath, a heart rate of the patient, a blood pressure of the patient, a carboxyhemoglobin level of the patient's blood, a temperature of the patient, a respiration rate of the patient, or a pulse rate of the patient, and wherein the second parameter comprises sound, the second measurements comprising an audio recording.
17. 17 . The method of claim 16 , wherein the marker comprises a power up sound of the first device, a power off sound of the first device, an audible instruction output by the first device, or an alarm output by the first device.
18. 18 . The method of claim 14 , wherein outputting the aligned data comprises simultaneously: displaying, on a screen, an animation of a waveform of the first parameter; and outputting, by a speaker, an audio recording indicating the second measurements of the second parameter.
19. 19 . The method of claim 16 , further comprising: identifying words by performing speech-to-text on the audio recording; generating a record comprising the words and the first measurements of the first parameter; and transmitting the record to an external computing device.
20. 20 . The method of claim 19 , further comprising: determining that a treatment has been administered to a patient based on the words, wherein the record indicates the treatment administered to the patient.

Description

CROSS-REFERENCE TO RELATED APPLICATION This application claims the benefit of U.S. Provisional Application No. 63/222,937, which was filed on Jul. 16, 2021 and is incorporated by reference herein in its entirety. BACKGROUND Many emergency service providers use recorders to document emergency scenes. For example, an emergency medical service (EMS) responder carries and activates an independent audio recorder when they respond to an emergency event. The obtained audio recording can be used for post-event review and documentation. However, in some cases, it is difficult to identify the time interval documented in the audio recording. With organizations that have multiple responders and multiple recordings, it can be difficult to identify which audio recordings correspond to which emergency events. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 illustrates an example environment for synchronizing different types of captured data. FIG. 2 illustrates an example of a parameter file described with reference to FIG. 1. FIG. 3 illustrates an example of a recording file described with reference to FIG. 1. FIG. 4 illustrates an example of aligned data described with reference to FIG. 1. FIG. 5 illustrates an example of a report described with reference to FIG. 1. FIG. 6 illustrates an example rescue scene associated with an alternate technique for aligning a recording file and a parameter file obtained by the medical device. FIG. 7 illustrates an example process for aligning parameter data and an audio recording. FIG. 8 illustrates an example of an external defibrillator configured to perform various functions described herein. DETAILED DESCRIPTION FIG. 1 illustrates an example environment 100 for synchronizing different types of captured data. As shown, the environment 100 includes a rescue scene 102 in which a rescuer 104 is treating a patient 106. The rescue scene 102, in some implementations, is a geographic area, volume, or other physical environment. In some examples, the rescue scene 102 is outside of a formal, clinical environment (e.g., a hospital). For example, the rescue scene 102 is outdoors, in a school, in an airport, or some other non-clinical building. The rescuer 104 is an individual caring for the patient 106. Examples of the rescuer 104 include a bystander, an emergency medical service provider or another type of care provider, such as a nurse, physician, or physician's assistant. The patient 106 is an individual being cared for by the rescuer 104. In various implementations, the patient 106 is experiencing acute distress and/or a medical emergency. In some examples, the patient 106 is experiencing cardiac arrest. The rescuer 104 uses a medical device 108 to diagnose the patient 106, treat the patient 106, or both. In some examples, the medical device 108 is a defibrillator, such as a monitor-defibrillator or an automated external defibrillator (AED). In some cases, the medical device 108 is an ultrasound device configured to generate an ultrasound image of the patient 106 and/or to detect a blood pressure of the patient 106. In some examples, the medical device 108 is a ventilation device configured to provide assisted ventilation to the patient 106. The medical device 108, in various implementations, includes one or more sensors configured to detect a physiological parameter of the patient 106. As used herein, the term “physiological parameter,” and its equivalents, may refer to a vital sign or other metric indicative of a condition of an individual. For instance, the medical device 108 includes a detection circuit electrically coupled to electrodes that are disposed on the chest of the patient 106, wherein the detection circuit is configured to detect a transthoracic impedance of the patient 106, an electrocardiogram (ECG) of the patient 106, or a combination thereof. Other examples of physiological parameters include an oxygenation of the patient's 106 blood (e.g., a peripheral (SpO2) and/or regional oxygenation level), an amount of carbon dioxide in the patient's 106 breath (e.g., a capnograph and/or end tidal CO2 (EtCO2)), a heart rate of the patient 106, a blood pressure of the patient 106, a carboxyhemoglobin level of the patient's 106 blood, a temperature of the patient 106, a respiration rate of the patient 106, and a pulse rate of the patient 106. In some examples, the medical device 108 includes one or more therapy circuits, one or more mechanical devices, or any combination thereof, which are configured to administer a therapy to the patient 106. For example, the medical device 108 can include a discharge circuit that outputs an electrical signal to electrodes disposed on the chest of the patient 106. In some cases, the electrical signal is in the form of a defibrillation shock, a pacing signal, or a synchronized cardioversion signal. The medical device 108 further includes a speaker 110 configured to output an audible marker 112 into the rescue scene 102. The audible marker 112 is a sound out