Abstract: A flow sensor system for ventilation treatment comprises a flow conduit configured to allow gas flow between a first region and a second region, the flow conduit defining a lumen for the gas flow; a flow restrictor disposed within the lumen of the flow conduit between the first region and the second region; a first absolute pressure sensor disposed adjacent to the first region of the flow conduit and configured to measure a pressure of the gas flow at the first region of the flow conduit; and a second absolute pressure sensor disposed adjacent to the second region of the flow conduit and configured to measure pressure of the gas flow at the second region of the flow conduit.

Abstract: A system including a medical device is provided. The medical device includes at least one sensor configured to acquire first data descriptive of a patient, first memory storing a plurality of templates, and at least one processor coupled to the at least one sensor and the first memory. The at least one processor is configured to identify a first template of the plurality of templates that is similar to the first data, to determine first difference data based on the first template and the first data, and to store the first difference data in association with the first template. The system may further include the programmable device.

Abstract: A system for improving cardiac output of a patient suffering from pulseless electrical activity or shock and yet displays myocardial wall motion including: a sensor to detect myocardial activity to determine the presence of residual left ventricular pump function having a contraction or ejection phase and a filling or relaxation phase, a device to prompt the application of or apply a compressive force repeatedly applied to the chest based on the sensed myocardial activity such that the compressive force is applied during at least some of the ejection phases and is ceased during at least some of the relaxation phases to permit residual cardiac filling, thereby enhancing cardiac output and organ perfusion.

Abstract: A patient management system is provided herein. The system can include communications circuitry configured to receive first physiological information relating to a first at least one patient from at least one therapeutic medical device and second physiological information relating to a second at least one patient from at least one monitoring medical device. The system also includes a computing device, which can include a user interface. The user interface can be configured to display the first and second physiological information according to a user selection.

Abstract: A method for evaluating emergency medical service according to embodiments of the present invention includes receiving emergency medical service data from a database, filtering the emergency medical service data based on a selection criteria to form a filtered emergency medical service data set, determining a first score from the filtered emergency medical service data set, where the first score indicates objective clinical performance quality for the filtered emergency medical service data set, determining a second score from the filtered emergency medical service data set, where the second score indicates objective operational performance quality for the filtered emergency medical service data set, merging the first score and the second score to form a composite score; and visually displaying the composite score to a user.

Abstract: An external wearable defibrillator for monitoring a patient for cardiac-related events is provided. The defibrillator includes ECG sensors configured to be disposed about a torso of the patient, therapy electrodes, and at least one motion sensor. The ECG sensors, therapy electrodes, and at least one motion sensor are configured to be worn continuously for an extended period of time. The defibrillator includes a wearable medical device controller including at least one processor configured to receive ECG data, receive motion data, identify at least one of ventricular tachycardia or ventricular fibrillation, initiate a treatment protocol including a defibrillation shock, and, using at least one of the ECG data or the motion data, identify a predetermined pattern for syncope. The predetermined pattern includes bradycardia. The at least one processor is further configured to record the predetermined pattern in a memory and perform an intervening action to address the predetermined pattern.

Abstract: An ergonomic and unobtrusive cardiac monitoring and treatment device for continuous wear includes a band, ECG sensing electrodes and treatment electrodes configured to deliver an electrotherapy, one or more sensor ports for receiving one or more physiological sensors, and a controller for analyzing an ECG signal of a patient and causing a delivery of electro therapy. The band is configured to be worn about a thoracic region and has a vertical span of between about 1 to about 15 centimeters. The band is configured to be immobilized relative to a skin surface of the thoracic region of the patient by exerting one or more compression forces against the thoracic region. The device can include at least two separate wearable portions comprising a band portion including ECG sensing electrodes and/or other physiological sensors, and a second wearable portion optionally separable from the band portion, the second wearable portion including treatment electrodes.

Abstract: A wearable cardiac monitoring device for providing an improved fit to a body of a patient during long term cardiac monitoring of the patient is provided. The device includes a garment configured to be worn about a torso of the patient and including a flexible material and physiological sensors configured to detect a physiological signal of the patient, the physiological sensors disposed on the flexible material and positioned at one or more anatomical locations of the patient's torso. The device also includes force applicators disposed on the flexible material proximate to the one or more physiological sensors, each of the force applicators configured to be adjustable during the long term cardiac monitoring of the patient to cause a pressure in a range of 0.05 psi to 0.65 psi to be exerted by the physiological sensors onto the one or more anatomical locations of the patient's torso.

Abstract: An external defibrillator system for assisting manual delivery of chest compressions and ventilations to a patient by a rescuer as cardiopulmonary resuscitation (CPR) includes a speaker, and a processor, memory, and associated circuitry coupled to the speaker. The processor is configured to initiate prompting for the chest compressions and the ventilations manually delivered to the patient by the rescuer as CPR, control the speaker to generate first auditory cues for the chest compressions, and control the speaker to generate second auditory cues for the ventilations with a different sound than the first auditory cues for the chest compressions. The first auditory cues and the second auditory cues assist the rescuer in timing the delivery of the chest compressions and the ventilations.

Abstract: A medical device that includes a power source, a therapy delivery interface, therapy electrodes, electrocardiogram (ECG) sensing electrodes to sense ECG signal of a heart of a patient, a sensor interface to receive and digitize the ECG signal, and a processor. The processor is configured to analyze the ECG signal to determine a cardiac rhythm and a transform value representing a magnitude of a frequency component of the cardiac rhythm, analyze the cardiac rhythm and the transform value to detect a shockable cardiac arrhythmia by classifying the cardiac rhythm as a noise rhythm or a shockable cardiac arrhythmia rhythm based on the transform value, and causing the processor to detect the cardiac arrhythmia if classifying the cardiac rhythm as a shockable cardiac arrhythmia rhythm, initiate a treatment alarm sequence, adjust the shock delivery parameter for a defibrillation shock, and provide the defibrillation shock via the therapy electrodes.

Abstract: A chest compression monitor for measuring the depth of chest compressions achieved during CPR. A sensor of the chest compression monitor is disposed within its housing such that compression of the housing due to CPR compressions, and its resultant deformation, is detected by the sensor and used by the control system as the starting point for calculating chest compression depth based on an acceleration signal indicative of the downward displacement of the chest.

Abstract: A computing device includes a memory configured to store instructions. The computing device also includes a processor to execute the instructions to perform operations that include providing an alternating electrical signal to a patient through at least a pair of electrodes, and determining transthoracic impedance of the patient from a measurement associated with the applied alternating electrical signal. Operations also include identifying, from the transthoracic impedance, a sequence of resistance values for controlling the discharge of a charge storage device located external to the patient, and controlling the discharge of the charge storage device using the identified sequence of resistance values.

Abstract: Methods and systems are provided for guiding a rescuer in treatment of a patient. A method may include initializing one or more cameras on an external electrode assembly including a pair of electrodes. The method may further include capturing image information via the one or more cameras, the image information comprising a series of images acquired by the one or more cameras. The method may further include, based at least in part on the image information, providing feedback, comprising at least one of visual feedback and audio feedback, on at least one output device to guide the rescuer in the treatment of the patient.

Abstract: A system including a medical device is provided. The medical device includes at least one sensor configured to acquire first data descriptive of a patient, first memory storing a plurality of templates, and at least one processor coupled to the at least one sensor and the first memory. The at least one processor is configured to identify a first template of the plurality of templates that is similar to the first data, to determine first difference data based on the first template and the first data, and to store the first difference data in association with the first template. The system may further include the programmable device.

Abstract: An exemplary method of identifying a source of chest compressions administered during cardiopulmonary resuscitation (CPR) includes receiving, at a processor, signals indicative of pressure exerted during the chest compressions from at least one sensor communicatively coupled to the processor and disposed at a location on the victim's chest away from an indicated compression point for manual chest compressions, generating a compression waveform based on the received signals, detecting compression waveform features representative of the chest compressions based on the compression waveform, comparing the detected compression waveform features to a pre-determined criterion to discriminate between chest compressions from an automated compression device and manual chest compressions, determining whether the chest compressions are from the automated compression device or the manual chest compressions based on the comparison, and generating an output based on whether the chest compressions are determined to be from t

Abstract: A method for evaluating emergency medical service according to embodiments of the present invention includes receiving emergency medical service data from a database, filtering the emergency medical service data based on a selection criteria to form a filtered emergency medical service data set, determining a first score from the filtered emergency medical service data set, where the first score indicates objective clinical performance quality for the filtered emergency medical service data set, determining a second score from the filtered emergency medical service data set, where the second score indicates objective operational performance quality for the filtered emergency medical service data set, merging the first score and the second score to form a composite score; and visually displaying the composite score to a user.

Abstract: Among other things, we describe a system that includes a first medical device for treating a patient at an emergency care scene, the first medical device including a processor and a memory configured to detect a request for a connection between the first medical device and a second medical device for treating the patient at the emergency care scene, the request for connection including an identifier of the second medical device, responsive to receiving the request for connection, enabling a wireless communication channel to be established between the first medical device and the second medical device based on the identifier of the second medical device and an identifier of the first medical device; and enabling transmission and/or exchange of patient data between the first medical device and the second medical device via the wireless communication channel. Such communications with more than two devices may also be possible.

Abstract: A computer-implemented method for providing summary information for lifesaving activities is disclosed. The method involves sensing one or more activities that are repeatedly and cyclically performed on a victim by a rescuer; identifying a cyclical timing interval over which performance is to be analyzed fora integer number of cycles of the one or more activities, and gathering data from the sensing of the one or more activities during the time interval; generating, from analysis of the one or more activities, summary data that condenses data sensed for the one or more activities into a summary of the one or more activities; and providing, for display to a user, a visual summary of the performance of the one or more activities over the identified time interval.

Abstract: A system for providing a visual summary of a condition of a patient when traumatic brain injury (TBI) is suspected or diagnosed includes at least one patient condition sensor configured to sense data representative of a patient condition parameter of interest for a TBI patient; at least one airflow sensor configured to sense data representative of ventilations provided to the patient; at least one visual display for providing the visual summary to a user; and at least one controller. The at least one controller is configured to cause the visual display to provide the visual summary. The visual summary can include at least one visual representation of at least one patient condition parameter for each time interval of a plurality of time intervals, at least one visual representation of ventilation information, and a visual indication of when at least one patient condition parameter is outside of a target range.

Abstract: A system for documenting emergency medical events related to treatment of a patient is provided. The system includes a medical device configured to obtain physiological information from the patient and generate a first plurality of log entries that mark events that occur during treatment of the patient. The system also includes a mobile device configured to receive input for generating a second plurality of log entries that mark events that occur during treatment, establish a communicative connection with the medical device to access the first plurality of time-stamped log entries, and present, during the treatment of the patient, a single consolidated event log that includes the first plurality of log entries and the second plurality of log entries.