An external defibrillator system includes one or more compression sensors; one or more physiological sensors; and at least one processor. The at least one processor is configured to: receive and process chest compression signals and physiological signals from the sensors, determine values for chest compression depth and/or chest compression rate based on the received chest compression signals, determine a trend of at least one physiological parameter over a period comprising multiple chest compressions based on the received physiological signals, adjust a target chest compression depth and/or target chest compression rate based on the determined trend of the at least one physiological parameter, compare the determined values for chest compression depth and/or chest compression rate to the adjusted target compression depth and/or the adjusted target compression rate, and provide feedback about the quality of chest compressions performed on the patient.

System and methods for providing a patient with arrhythmia treatment are described. For example, a system includes an arrhythmia monitoring and treatment assembly configured to be worn on the torso of the patient. The assembly has a housing discreetly extending from a skin surface of the patient. The assembly is configured to provide therapy on detecting one or more arrhythmia conditions of the patient. A first at least one user response button is disposed on the assembly at a first location on the torso concealed under clothing, and a second at least one user response button is configured to be worn on a second location of the patient's body, a location other than the torso that is accessible to the patient. The system suspends an impending therapy upon receiving a user input from either one of the first or second at least one user response buttons.

In one example, an ambulatory medical device is provided. The ambulatory medical device includes a plurality of subsystems, at least one sensor configured to acquire data descriptive of a patient, a user interface and at least one processor coupled to the at least one sensor and the user interface. The at least one processor is configured to identify subsystem status information descriptive of an operational status of each subsystem of the plurality of subsystems and to provide a device health report for the ambulatory medical device via the user interface, the device health report being based on the operational status of each subsystem.

A defibrillator is provided comprising an activation mechanism having an activator and a status indicator, wherein the activator is disposable in a first condition in which the defibrillator is deactivated and in a second condition in which the defibrillator is activated and the status indicator is operable in at least a first mode in which a ‘defibrillator ready’ status of the defibrillator is indicated and a second mode in which a ‘defibrillator not ready’ status of the defibrillator is indicated. By having an activation mechanism which includes the activator and the status indicator, users of the defibrillator are not confused between separate activation and status indication devices and are able to use the activator promptly.

A patient-coupled resuscitation device for use with a plurality of medical devices is provided. The resuscitation device includes a portion configured to provide treatment, a connector configured to connect the resuscitation device to one of a first medical device and a second medical device, and a housing including a memory and associated circuitry. The memory and associated circuitry is configured to store a device identifier to identify the resuscitation device; receive medical treatment information from the first medical device, the medical treatment information including at least one of: patient physiological data, patient characteristic data, and rescuer performance data; receive timing information of the medical treatment information from the first medical device; record the medical treatment information and the timing information; and transfer, upon detecting a connection to the second medical device, the medical treatment information and the timing information to the second medical device.

Provided is a WCD system, including a collection module, a master control module and a defibrillation module; the collection module collects a signal, and has human body motion detection and vibration prompting functions; the master control module has a VF/VT analysis algorithm to analyze the collected signal, and can control a power supply of the defibrillation module; the defibrillation module has the VF/VT analysis algorithm and a defibrillation control function. Through the independent defibrillation module and the independent collection module, the reliability of the system can be improved.

Disclosed are systems and methods that implement a reporting function to capture subjective a subjective health assessment of the patient and to correlate that subjective health assessment with more objective patient parameter data, such as ECG waveforms and the like, in an attempt to identify nuances in the objective patient parameter data that can be used to predict future (or even imminent) adverse health events.

Wearable devices are provided herein including wearable defibrillators, wearable devices for diagnosing symptoms associated with sleep apnea, and wearable devices for diagnosing symptoms associated with heart failure. The wearable external defibrillators can include a plurality of ECG sensing electrodes and a first defibrillator electrode pad and a second defibrillator electrode pad. The ECG sensing electrodes and the defibrillator electrode pads are configured for long term wear. Methods are also provided for using the wearable external defibrillators to analyze cardiac signals of the wearer and to provide an electrical shock if a treatable arrhythmia is detected. Methods are also disclosed for refurbishing wearable defibrillators. Methods of using wearable devices for diagnosing symptoms associated with sleep apnea and for diagnosing symptoms associated with heart failure are also provided.

Technologies and implementations for a wearable healthcare system, which may be worn by a person. The wearable healthcare systems may include one or more motion sensors. A motion analysis modules may be included in the wearable healthcare system, which may be configured to determine physical activities and intensity of the physical activities of the person.

An electrode plate (100) and a wearable defibrillation device are disclosed. The electrode plate (100) includes a hermetic shell (110), a capsule (120) and a sealing structure (130). The hermetic shell (110) has an inflation port (111) and an overflow aperture (112). The overflow aperture (112) is disposed in a conductive exposed surface (113) of the hermetic shell (110). The capsule (120) is provided in the hermetic shell (110) and defines a cavity (122) for storage of a conductive paste therein. The cavity (122) defines an inlet orifice (123) and an outlet orifice (124). The overflow aperture (112) is disposed at the outlet orifice (124). A sealing component (132) of the sealing structure (130) is positioned at the overflow aperture (112) and configured to close the overflow aperture (112) and the outlet orifice (124) when the hermetic shell (110) is not inflated. The force applying component (131) of the sealing structure (130) is disposed on the hermetic shell (110) and then is connected to the sealing component (132) after being inserted into the capsule (120) through the inlet orifice (123). The force applying component (131) is configured to pull the sealing component (132) as a result of inflation and expansion of the hermetic shell (110) and thus open the overflow aperture (112) and the outlet orifice (124) and bring them into communication. As a result, the conductive paste is allowed to flow through the outlet orifice (124) and the overflow aperture (112) onto the exposed surface (113). During cardiac defibrillation of the electrode plate (100), the conductive paste can automatically applied to provide a patient with timely protection, and the conductive paste can be released in a reliable and safe manner.