Abstract:
A wearable medical device and method of detecting clipping of ECG signals is disclosed. In one embodiment, the wearable medical device comprises a plurality of ECG sensing electrodes configured to sense an ECG of a patient and an ECG acquisition circuit electrically coupled to a pair of the plurality of ECG sensing electrodes and configured to provide an amplified and conditioned analog ECG signal, a programmable attenuation/gain stage electrically coupled between a first gain stage and a second gain stage, an ADC electrically coupled to the ECG acquisition circuit to receive and digitize the amplified and conditioned analog ECG signal and provide a digitized ECG signal, and a signal conditioning to and control unit electrically coupled to the ECG acquisition circuit and the ADC to receive and monitor the digitized ECG signal and to detect clipping of the amplified and conditioned analog ECG signal based upon the digitized ECG signal.
Abstract:
An electrode assembly includes a first surface to be placed adjacent a person's skin and a second surface including a plurality of reservoirs of conductive gel. The plurality of reservoirs of conductive gel are disposed on sections of the electrode assembly that are at least partially physically separated and may move at least partially independently of one another to conform to contours of a body of a patient. The electrode assembly is configured to dispense an amount of the electrically conductive gel onto the first surface in response to an activation signal and to provide for a defibrillating shock to be applied to the patient through the amount of the electrically conductive gel.
Abstract:
An accessory kit for use with a wearable medical device, such as a wearable defibrillator, that includes a control unit and a first plurality of electrodes electrically coupled to the control unit. The first plurality of electrodes includes a first plurality of ECG sensing electrodes and a first plurality of therapy electrodes configured to provide a defibrillating shock to a body of a patient. The accessory kit includes a waterproof enclosure configured to receive the control unit and protect the control unit during operation in a wet environment and a second plurality of electrodes that are electrically coupled to a connector configured to removably and electrically couple to the control unit. The second plurality of electrodes includes a second plurality of ECG sensing electrodes and a second plurality of therapy electrodes configured to provide a defibrillating shock to the body of the patient.
Abstract:
An electrode assembly that includes an electrically conductive layer, a first impedance reduction system, and a second impedance reduction system. The electrically conductive layer forms an electrode portion of the electrode assembly and a first surface to be placed adjacent a person's skin. The first impedance reduction system is configured to dispense a first amount of an electrically conductive gel onto the first surface of the electrically conductive layer in response to a first activation signal. The second impedance reduction system is configured to dispense a second amount of the electrically conductive gel onto the first surface of the electrically conductive layer in response to a second activation signal.
Abstract:
An electrode assembly includes a first surface to be placed adjacent a person's skin and a second surface including a plurality of reservoirs of conductive gel. The plurality of reservoirs of conductive gel are disposed on sections of the electrode assembly that are at least partially physically separated and may move at least partially independently of one another to conform to contours of a body of a patient. The electrode assembly is configured to dispense an amount of the electrically conductive gel onto the first surface in response to an activation signal and to provide for a defibrillating shock to be applied to the patient through the amount of the electrically conductive gel.
Abstract:
A system includes: at least one identification device associated with a wearable medical therapy device and configured to have information read therefrom and written thereto; at least one controller operatively connected to the at least one identification device and configured to at least one of retrieve the information from the at least one identification device and write the information to the at least one identification device; and at least one device positioned externally from the wearable medical therapy device and configured to interrogate the at least one identification device to at least one of obtain the information from the at least one identification device and write additional information to the at least one identification device.
Abstract:
A wearable defibrillator consists of a vest (or belt) which is worn by the patient. The device monitors the patient's ECG with sensing electrodes and can monitor other patient conditions and in appropriate cases can treat certain conditions. An accelerometer(s) in the wearable defibrillator can allow for the device to determine the position, movements, forces applied to the patient, and/or the device. The device can use a least one patient motion detector generating a signal indicative of patient activity. Analysis of the signal can be indicative of patient activity appropriate for treatment or indication of device condition.
Abstract:
A wearable medical device and method of detecting clipping of ECG signals is disclosed. In one embodiment, the wearable medical device comprises a plurality of ECG sensing electrodes configured to sense an ECG of a patient and an ECG acquisition circuit electrically coupled to a pair of the plurality of ECG sensing electrodes and configured to provide an amplified and conditioned analog ECG signal, a programmable attenuation/gain stage electrically coupled between a first gain stage and a second gain stage, an ADC electrically coupled to the ECG acquisition circuit to receive and digitize the amplified and conditioned analog ECG signal and provide a digitized ECG signal, and a signal conditioning to and control unit electrically coupled to the ECG acquisition circuit and the ADC to receive and monitor the digitized ECG signal and to detect clipping of the amplified and conditioned analog ECG signal based upon the digitized ECG signal.
Abstract:
A wearable defibrillator and method of monitoring the condition of a patient. The wearable defibrillator includes at least one therapy pad, at least one sensor and at least one processing unit operatively connected to the one or more therapy pads and the one or more sensors. The wearable defibrillator also includes at least one audio device operatively connected to the one or more processing units. The one or more audio devices are configured to receive audio input from a patient.
Abstract:
A wearable defibrillator for monitoring life threatening arrhythmias in a patient includes a plurality of electrocardiogram (ECG) sensing electrodes to generate ECG data, one or more audio devices, and one or more processors. The one or more audio devices include a microphone configured to detect background noise and a speaker configured to produce an audio output. The one or more processors are configured to detect. from at least the ECG data, whether the patient is experiencing a life threatening arrhythmia, cause an audible alarm to be produced as the audio output in response to detecting that the patient is experiencing the life threatening arrhythmia, identify a level of the background noise detected by the microphone in response to detecting that the patient is experiencing the arrhythmia, and increase a confidence that the detected arrhythmia is appropriate for treatment in response to identifying that little to no background noise is detected.