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 composite electrode intracardiac defibrillation catheter includes a first electrode group including at least two first electrodes for detecting an electrophysiological electrical signal of a site or a cell group in a heart chamber, and a second electrode group including at least one second electrode located between an adjacent pair of the at least two first electrodes for causing an electric current by a high-voltage defibrillation electric shock for defibrillation to flow in a contact site in the heart chamber or a contact site in a vein, and a conductive length of a surface of the at least one second electrode in a longitudinal direction of the composite electrode intracardiac defibrillation catheter is longer than a conductive length of each of the at least two first electrodes.

In one embodiment, a method to alert a user of a wearable cardioverter defibrillator (WCD) is described. The method includes detecting a condition requiring attention of the patient and issuing an alert to notify the patient of the condition. The method also includes receiving a first input from the patient to replay the audible portion of the alert and replaying the audible portion of the alert when the first input is received.

A portable medical treatment apparatus and interactive application that leads a user through a medically acceptable query flow for treating medical emergencies, including cardiac or pulmonary medical emergencies that can be treated with electrotherapy and other medical emergencies.

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 wearable medical monitoring device includes a plurality of ECG electrodes configured to receive an ECG signal when the wearable medical monitoring device is worn by a patient, and a monitor coupled to the plurality of ECG electrodes. The monitor is configured to detect an impending cardiac event based on the received ECG signal of the patient. The device includes at least one processor configured to execute a plurality of instructions to implement an update manager configured to receive a software update corresponding to the at least one software module for the monitor, determine an event estimation of risk score for a predetermined period of time, cause an installation of the update when the event estimation of risk score indicates a low likelihood of an impending cardiac event, and cause a delay in the installation when the event estimation of risk score indicates a high likelihood of impending cardiac event.

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.

Several defibrillators, defibrillator architectures, defibrillator components and methods of operating defibrillators are described. In one aspect, a modular defibrillator architecture is described. A base unit provides a fully functional defibrillator. The functionality of the base unit can be supplemented by attaching an interface unit to the base unit or by connecting a smartphone the base unit. Such devices provide connectivity as well as a screen for displaying supplementary graphics and/or videos which are useful to support both emergency and maintenance & monitoring activities. In some embodiments a battery pack may also or alternatively be coupled to the base unit to prolong the unit's shelf life before recharging or replacement of its batteries is required. If necessary the base unit can be powered from a connected external device such as a mobile communication device.

A patient support apparatus having a support structure with a primary support surface for a patient, and an extension manually movable by a user relative to the support structure from a stowed position to an extended position so that the extension provides auxiliary support for the patient in the extended position. A locking device is operable to releasably hold the extension relative to the support structure in the stowed position and the extended position. A release mechanism is operable to manipulate the locking device to release the extension for movement relative to the support structure, and is movable with the extension from the stowed position to the extended position.

Disclosed herein is an implantable electronic device for use with an implantable medical lead. The implantable electronic device includes a housing and a header connector assembly coupled to the housing and adapted to receive the proximal lead end of the implantable medical lead. The header connector assembly includes a connector assembly including a connector, a feedthrough extending through the housing, and a conductor coupling the feedthrough to the connector. The conductor includes a first conductor segment and a second conductor segment offset from the first conductor segment and each of the first conductor segment and the second conductor segment are resistance welded to the connector.