A modular waterproof therapeutic electrode component for preventing water ingress and for easy servicing. The component comprises a substrate comprising a conductive surface, a reservoir of conductive fluid mounted on the substrate, a reusable waterproof enclosure comprising circuitry, the reusable waterproof enclosure comprising circuitry configured to be removably coupled to the substrate, and a fluid deployment device in electrical communication with the circuitry and mounted on the substrate, the fluid deployment device configured to cause the reservoir to release the conductive fluid onto the conductive surface to reduce electrical impedance between the conductive surface and skin of a subject.

A completely de-energizable defibrillator is provided, allowing the electrical components of the defibrillator to be electrically unbiased while the defibrillator is not in use. Additionally, the microcontroller unit of the AED includes features to prevent computational errors due to external influences, electromagnetic interference, radio frequency interference, ionizing radiation, high energy particles, cosmic radiation, and/or solar radiation, or a combination thereof, including one or more pairs of lockstep processors, error detection code, and features that prevent tampering with the microcontroller.

A defibrillator with an insulating-material-filled module is provided. The defibrillator includes a module comprising a pulse generation circuit configured to generate therapeutic defibrillation waveforms, wherein the module is potted with an insulating material.

In one embodiment, a defibrillation assembly energizable through pad removal is provided. The defibrillation assembly includes a mechanical switch that is in an open position when the circuitry is not in use; an energy storage element that supplies power to the mechanical switch; circuitry configured to generate a defibrillation waveform, wherein the circuitry is isolated from the energy storage element by the mechanical switch; andelectrode pads through which the defibrillation waveform is delivered to a patient, wherein a removal of at least one of the electrode pads from an initial position to a further position causes the power to flow to the circuitry through the mechanical switch.

AED pulse generation circuits that provide floating, adjustable, bias voltages for driving a solid-state defibrillation waveform therapy generator circuit are provided. The provided bias voltages allow to reverse polarity of provided electric shock to increase chances of successful defibrillation and survival. In one of the provided configurations, energy stored in the pulse capacitor can be discharged by activating the waveform therapy generator in the high-resistance transconductance region. The circuits can be positioned on a self-contained module potted with an insulating material to reduce unintended interactions with other AED components. Through the use of the disclosed circuits, AED size can be reduced to promote pocketability while simultaneously increasing AED reliability.

A modular waterproof therapeutic electrode component for preventing water ingress and for easy servicing. The component comprises a substrate comprising a conductive surface, a reservoir of conductive fluid mounted on the substrate, a reusable waterproof enclosure comprising circuitry, the reusable waterproof enclosure comprising circuitry configured to be removably coupled to the substrate, and a fluid deployment device in electrical communication with the circuitry and mounted on the substrate, the fluid deployment device configured to cause the reservoir to release the conductive fluid onto the conductive surface to reduce electrical impedance between the conductive surface and skin of a subject.

In one embodiment, a defibrillation assembly energizable through electrode enclosure manipulation is provided. The defibrillation assembly includes a magnetically triggered reed switch; an energy storage element that supplies power to the magnetically triggered reed switch; circuitry configured to generate a defibrillation waveform, wherein the circuitry is isolated from the energy storage element by the electromechanical component; and a case within which at least a portion of the housing is located and comprising an electrode enclosure within which a magnet is positioned that keeps the magnetically triggered reed switch in an open position, wherein an opening of the case that comprises removal of the magnet from the position causes the magnetically triggered reed switch to switch into a closed position and for the power to flow to the circuitry through the magnetically triggered reed switch.

AED pulse generation circuits that provide floating, adjustable, bias voltages for driving a solid-state defibrillation waveform therapy generator circuit are provided. The provided bias voltages allow to reverse polarity of provided electric shock to increase chances of successful defibrillation and survival. In one of the provided configurations, energy stored in the pulse capacitor can be discharged by activating the waveform therapy generator in the high-resistance transconductance region. The circuits can be positioned on a self-contained module potted with an insulating material to reduce unintended interactions with other AED components. Through the use of the disclosed circuits, AED size can be reduced to promote pocketability while simultaneously increasing AED reliability.

A completely de-energizable defibrillator is provided, allowing the electrical components of the defibrillator to be electrically unbiased while the defibrillator is not in use. The energizing of the defibrillator can be controlled through a power switch interfaced to a relay, with the microcontroller of the AED being able to de-energize the circuitry in case of unintended activation. Additionally, the microcontroller unit of the AED includes features to prevent computational errors due to external influences, electromagnetic interference, radio frequency interference, ionizing radiation, high energy particles, cosmic radiation, and/or solar radiation, or a combination thereof, including one or more pairs of lockstep processors, error detection code, and features that prevent tampering with the microcontroller.

In one embodiment, a defibrillation assembly energizable through case opening is provided. The defibrillation assembly includes an a magnetically triggered reed switch; a magnet positioned to keep the switch in an open position; an energy storage element that supplies power to the magnetically triggered reed switch; circuitry configured to generate a defibrillation waveform, wherein the circuitry is isolated from the energy storage element by the magnetically triggered reed switch; and a case within which at least a portion of the circuitry is located and a comprising a portion connected to the magnet by a mechanical interconnect, wherein an opening of the case displaces the connected case portion, which displaces the magnet far enough to transition the magnetically triggered reed switch into a closed position and causes the power to flow to the circuitry through the magnetically triggered reed switch.