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:
An ambulatory medical device is provided. The ambulatory medical device includes at least one sensor configured to acquire data descriptive of a patient, a memory, a user interface, and at least one processor coupled with the memory, the at least one sensor, and the user interface. The at least one processor is configured to determine whether the ambulatory medical device is within a predefined range of a reference location and to initiate location-specific processing in response to determining that the ambulatory medical device is within the predefined range. The location-specific processing includes at least one of issuing a notification and adapting the user interface.
Abstract:
In some examples, an ambulatory medical device is provided. The ambulatory medical device includes at least one sensor configured to acquire data descriptive of the patient, one or more processors in communication with the at least one sensor, a patient care component executable by the one or more processors, and a limited functionality component executable by the one or more processors. The patient care component is configured to perform one or more primary operations of the ambulatory medical device at least in part by accessing the data descriptive of the patient. The limited functionality component is configured to exchange information with a communication device and to not affect the one or more primary operations of the ambulatory medical device.
Abstract:
An ambulatory medical device is provided. The ambulatory medical device includes at least one sensor configured to acquire data descriptive of a patient, a memory, a user interface, and at least one processor coupled with the memory, the at least one sensor, and the user interface. The at least one processor is configured to determine whether the ambulatory medical device is within a predefined range of a reference location and to initiate location-specific processing in response to determining that the ambulatory medical device is within the predefined range. The location-specific processing includes at least one of issuing a notification and adapting the user interface.
Abstract:
A wearable monitoring and therapeutic device includes at least two sensing electrodes. Each sensing electrode includes a metallic surface integrated in a garment. The device includes at least two therapy electrodes. Each of the at least two therapy electrodes includes a receptacle, and each receptacle includes at least one dose of conductive fluid. The device includes the garment. The garment includes a fabric that is stretchable and that is breathable and/or moisture wicking, and conductive wiring configured to at least partially electrically connect that at least two sensing electrodes to at least one defibrillator component. The device includes the at least one defibrillator component. The at least two therapy electrodes are configured to provide an electric shock to the subject. Prior to the application of the electric shock, each receptacle is configured to release the conductive fluid from the receptacle.
Abstract:
Ambulatory medical devices may occasionally improperly administer a therapeutic stimulation pulse to a patient upon an incorrect detection of arrhythmia in the patient. To address these improperly administered therapeutic stimulation pulses, an ambulatory medical device includes processes and systems for verifying an initial declaration of an arrhythmia. The ambulatory medical device described include at least one first sensing electrode and at least one second sensing electrode distinct from the at least one first sensing electrode. First electrocardiogram (ECG) signals detected by the first sensing electrode are analyzed to provide an initial declaration of the arrhythmia condition of the patient. As a treatment protocol is being initiated in response to the analysis of the first ECG signals, second ECG signals detected by the second sensing electrode are analyzed to verify the initial declaration of the arrhythmia.
Abstract:
In at least one example, a medical device is provided. The medical device includes at least one therapy electrode, at least one electrocardiogram (ECG) electrode, at least one acoustic sensor, and at least one processor coupled with the at least one acoustic sensor, the at least one ECG electrode, and the at least one therapy electrode. The at least one processor can receive at least one acoustic signal from the at least one acoustic sensor, receive at least one electrode signal from the ECG electrode, detect at least one unverified cardiopulmonary anomaly using the at least one electrode signal, and verify the at least one unverified cardiopulmonary anomaly with reference to data descriptive of the at least one acoustic signal.
Abstract:
Techniques that enable medical devices to quickly recover from loss of sensory functions are provided. In some examples, a medical device is configured to advantageously leverage differences between a first type of sensing electrode and a second type of sensing electrode that has a shorter recovery time than the first type of sensing electrode. In some examples, a medical device is configured to reference data generated by a first conditioning circuit that is configured to process signals acquired under a first set of environmental conditions and to reference data generated by a second conditioning circuit that is configured to process signal acquired under a second set of environmental conditions. In some examples, a medical device is configured to arrange electrodes used by the medical device to acquire signals in at specific locations to reduce the amount of disruptive power the electrodes encounter.