US Patent 11883678 Water resistant wearable medical device

A wearable medical device includes a waterproof harness, a plurality of ECG sensing electrodes configured to detect a patient's ECG, and a plurality of therapy electrodes configured to provide at least one biphasic shock to the patient. The device includes a control unit in electronic communication with the ECG sensing electrodes and therapy electrodes and configured to monitor the sensed ECG and, in response to detecting a cardiac arrhythmia, provide the biphasic shock(s). The control unit is comprised within a waterproof case. The device includes a water-resistant or waterproof connection pod that is configured to electrically couple the ECG sensing electrodes, therapy electrodes, and control unit. The connection pod provides the sensed ECG signal to the control unit and the biphasic shock current to the therapy electrodes. The device includes a user interface device in electronic communication with the control unit that includes at least one patient responsiveness button.