Abstract: A non-invasive wearable ambulatory cardiac defibrillator configured to stabilize forces on one or more electrodes on the patient's skin is provided. The device includes a garment configured to be worn around a torso of a patient, a sensing electrode configured to sense electrical signals at the surface of the patient's skin indicative of electrical activity of the patient's heart, a therapy electrode configured to deliver defibrillation pulses to the patient, and a controller in communication with the sensing and therapy electrode. The controller is configured to receive the signals from the sensing electrode and to cause delivery of the defibrillation pulses from the therapy electrode based on the controller detecting a cardiac arrhythmia in the received electrical signals.

Abstract: A non-invasive wearable ambulatory cardiac defibrillator configured to improve therapy electrode contact with a patient's skin is provided. The defibrillator device includes a garment configured to be worn around the patient's torso, a sensing electrode attached to the garment and configured to sense electrical signal(s) at the surface of the patient's skin indicative of electrical activity of the patient's heart, and therapy electrodes attached to the garment and configured to deliver one or more defibrillation pulses to the patient. The therapy electrodes include at least two posterior therapy electrodes configured to be disposed on a posterior portion of the patient's body. The device further includes at least one strap attached to a back portion of the garment and exerting a normal force on the posterior therapy electrodes to exert a substantially uniform normal force over the surfaces of the posterior therapy electrodes and/or limit displacement of the posterior therapy electrodes.

Abstract: A wearable cardiac therapeutic device includes a plurality of ECG sensing electrodes configured to sense ECG signals regarding a cardiac function of a patient; a plurality of therapy electrodes configured to deliver transcutaneous defibrillation shocks or transcutaneous pacing pulses to the patient's heart; and a support garment configured to support and hold the plurality of ECG sensing electrodes and the plurality of therapy electrodes against the patient's body. The support garment includes one or more features for improving and enhancing the patient's experience in wearing the support garment with respect to wearability, comfort, aesthetics, and assembly and usage of the device.