WEARABLE CARDIOVERTER DEFIBRILLATOR (WCD) SYSTEM USING SENSOR MODULES FOR CONFIRMATION BEFORE SHOCK

摘要

A wearable cardioverter defibrillator (“WCD”) system includes a support structure that can be worn by a patient, and a defibrillator coupled to the support structure. An ECG input, rendered from an ECG of the patient, may meet a primary shock criterion. One or more sensor modules are further provided, which are worn by the patient at different times. The sensor modules may monitor different physiological parameters of the patient, and transmit signals about them. The WCD system further has a multi-sensor interface to receive the transmitted signals, and a processor to determine from them whether a secondary shock criterion is met. If both the primary and the secondary shock criteria are met, the decision is to shock. The signals increase specificity of the detection, while the patient can wear different modules depending on context.

主权项

1. A wearable cardioverter defibrillator (“WCD”) system configured to be worn by a patient, and to be used in conjunction with a first sensor module and a second sensor module, the first sensor module configured to be worn by the patient so as to monitor a first physiological parameter of the patient other than an electrocardiogram (“ECG”) of the patient during a first time duration, the first sensor module further configured to generate a first sensing input from the monitored first physiological parameter and to transmit a first signal that communicates the first sensing input, the second sensor module configured to be worn by the patient so as to monitor a second physiological parameter of the patient other than the first physiological parameter and other than an ECG of the patient during a second time duration different from the first time duration, the second sensor module further configured to generate a second sensing input from the monitored second physiological parameter and to transmit a second signal that communicates the second sensing input, the WCD system comprising:
a support structure configured to be worn by the patient; a multi-sensor interface configured to be worn by the patient, the multi-sensor interface configured to receive the transmitted first signal and the transmitted second signal; a defibrillator housing configured to be coupled to the support structure, the first sensor module and the second sensor module configured to be worn by the patient by being outside the defibrillator housing; a measurement circuit configured to render an ECG input from an ECG of the patient; an energy storage module configured to store an electrical charge within the defibrillator housing; a discharge circuit configured to discharge the stored electrical charge through the patient's body; and a processor within the defibrillator housing, the processor configured to:
determine from the ECG input whether or not a primary shock criterion is met, andif so, determine from at least one of the received first signal and the received second signal whether or not a secondary shock criterion is met, andcontrol the discharge circuit to discharge the stored electrical charge through the patient's body, if both the primary and the secondary shock criteria are met.