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 a power circuit and an automated external defibrillator including the same. The power circuit may include a battery-driven power source, and a transformer comprising a primary winding and N secondary windings, wherein N is an integer greater than or equal to 2, and wherein the primary winding is electrically coupled to the power source. The power circuit may include N charging and discharging branches, wherein the N charging and discharging branches are respectively connected to the N secondary windings and are cascaded in sequence. The power circuit may include a plurality of electrode plates configured to be connected to an external load, wherein electrode plates of the plurality of electrode plates are electrically coupled to one or more output nodes of the N charging and discharging branches.

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.

An automated external defibrillator (AED) includes: a battery configured to supply electric power to the AED; an indicator configured to visually provide predetermined information related to the AED and a remaining level of the battery; and an indicator controller configured to change a visual aspect of the indicator according to the remaining level.

An ambulatory medical device comprises: a sensing component to be disposed on a patient for detecting a physiological signal of the patient; and monitoring and self-test circuitry configured for detecting a triggering event and initiating one or more self-tests based on detection of the triggering event. The ambulatory medical device senses the physiological signal of the patient substantially continuously over an extended period of time.

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.

A patient monitoring device configured to monitor cardiac activity and sleep stage information of a patient is provided. The device includes a plurality of electrodes to acquire electrocardiogram (ECG) signals from the patient, at least one motion sensor configured to generate a motion signal based upon movement of the patient, and at least one processor. The processor is configured derive motion parameters from the motion signal, derive ECG parameters from the ECG signals, determine whether the patient is in an immobilized sleep stage or a non-immobilized sleep stage based upon the motion parameters and the ECG parameters, adjust one or more cardiac arrhythmia detection parameters such that the device operates in a first monitoring and treatment mode when the patient is in an immobilized sleep stage, and monitor the patient for the cardiac arrhythmia using the first monitoring and treatment mode.

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.

A defibrillator is an apparatus for defibrillation, and includes an oxygen saturation (TOI) measurement unit for acquiring a numerical value related to an oxygen saturation of a patient, an electrocardiogram (ECG) measurement unit for measuring an electrocardiogram of the patient in order to determine whether an electrical shock is required for the patient, and a control unit for starting measurement of the electrocardiogram of the patient in the electrocardiogram measurement unit on the condition that the numerical value acquired in the oxygen saturation measurement unit exceeds a threshold value.