Several defibrillators, defibrillator architectures, defibrillator components and methods of operating defibrillators are described. In one aspect, a modular defibrillator architecture is described. A base unit provides a fully functional defibrillator. The functionality of the base unit can be supplemented by attaching an interface unit to the base unit or by connecting a smartphone the base unit. Such devices provide connectivity as well as a screen for displaying supplementary graphics and/or videos which are useful to support both emergency and maintenance & monitoring activities. In some embodiments a battery pack may also or alternatively be coupled to the base unit to prolong the unit's shelf life before recharging or replacement of its batteries is required. If necessary the base unit can be powered from a connected external device such as a mobile communication device.

A chip package structure includes a substrate having a first surface and a second surface being opposite surfaces of the substrate; a housing disposed on the first surface of the substrate and enclosing a chip region; and a chip set disposed in the chip region and electrically connected to the substrate. The chip set includes a first chip and a second chip, and an active surface of the second chip faces the active surface of the first chip.

A physiological signal monitoring system includes a single set of sensing electrodes to provide conditioned physiological signals to a primary monitoring device and a secondary monitoring device. The monitoring system includes pre-processing circuitry configured to receive a raw physiological signal. The pre-processing circuitry is configured to produce a primary physiological signal and a secondary physiological signal. Each of the primary and secondary physiological signals are conditioned. The primary conditioned physiological signal is directed to a primary monitoring device such as a hospital wearable defibrillator device. The secondary conditioned physiological signal is directed to telemetry modeling circuitry where it is further processed to output one or more telemetry signals. The one or more telemetry signals are output to a secondary monitoring device such as a three lead ECG monitoring device. Thus, a single set of sensing electrodes can provide physiological signals to multiple monitoring devices.

Methods, apparatus, and systems relating to a Wearable Cardioverter Defibrillator (WCD) system capable of logging event data and/or broadcasting state changes and/or system status information to external clients are described. In an embodiment, a processor stores data corresponding to one or more event markers in memory in response to occurrence of an event. Occurrence of the event is detected based at least in part on detection of one or more parameters by one or more sensors or a signal to be generated by one or more of electrodes of the WCD system. A communication device transmits at least a portion of the stored data to a remote device. A patient condition or a WCD system condition can then be detected based at least in part on analysis of the stored data and/or the transmitted portion of the stored data.

A cabinet with AED light signal display is disclosed. A cabinet body receives an AED having an indicator. A light signal indication device is disposed on the outside of the cabinet body. A status sensor is disposed on the outside of the indicator of the AED and is electrically connected to the circuit board through a transmission cable, detecting a display status of the indicator of the AED to generate a detection result. A circuit board is electrically connected to the status sensor and a light signal indication device. The circuit board generates a control signal according to the detection result, controlling the light signal indication device to show a light signal corresponding to the indicator.

An automated external defibrillator (AED) system includes shock generating electronics, a battery configured for providing power to the shock generating electronics, power management circuitry configured for controlling the shock generating electronics and the battery, and a controller configured for controlling the power management circuitry. The AED system is housed in a small enclosure that provides a hand-carryable device, and the enclosure includes an externally mounted clip that enables the device to be wearable on a user's belt. Cardiac pads are stored separately and are plugged into the device to automatically power on the device. An associated AED method is designed for a trained user to operate the AED system.

Monitors for evaluating airway procedures, particularly in a pre-hospital environment, are described herein. In an example method, an airway parameter of an individual receiving assisted ventilation is detected by an airway sensor. A monitor determines a metric based on the airway sensor. Further, the monitor performs an action based on the metric.

Systems and methods for monitoring physiologic response to Valsalva maneuver (VM) are disclosed. An exemplary patient monitor may detect a natural incidence of a VM session occurred in an ambulatory setting using a heart sound (HS) signal sensed from the patient. The patient monitor may include a physiologic response analyzer to sense patient physiologic response during the detected VM session, and generate a cardiovascular or autonomic function indicator based on the sensed physiologic response to the VM. Using the physiologic response to the VM, the system may detect a target physiologic event using the sensed physiologic response to the VM.

A patient-worn arrhythmia monitoring and treatment device includes at least two pads configured to affix to skin on a torso of a patient. At least one of a pair of sensing electrodes is disposed on each one of the pads and configured to sense surface ECG activity of the patient. At least one of a pair of therapy electrodes is disposed on each one of the pads and configured to deliver one or more therapeutic pulses to the patient. A controller is in communication with the pairs of sensing and therapy electrodes and is configured to monitor for cardiac arrhythmias based on the sensed surface ECG activity and cause the delivery of the one or more therapeutic pulses. The device includes a removable garment to be worn about the torso to immobilize on the torso the one of the at least two pads to which the controller is coupled.

Systems and methods for monitoring chronic over-pacing (COP) to the heart are discussed herein. In an embodiment, a system includes a receiver circuit to receive information about pacing rates of a plurality of paced heart beats, and a pacing analyzer circuit to generate a pacing rate distribution using pacing rates of the plurality of the paced heart beats. The pacing rate distribution includes a pacing rate histogram. The pacing analyzer circuit may recognize a morphological pattern from the pacing rate distribution, and detect a COP indication using the extracted feature. A programmer circuit adjusts one or more therapy parameters in response to the detected. COP indication.