Complex admittance separates muscle conductance from blood signals, improving ventricular volume measurement and biopsy-free rejection detection.
A reed-switch electrode enclosure keeps AED circuitry de-energized until opening, enabling compact carry, longer battery life, and intuitive use.
Bridge-rectified bias generation replaces bulky transformer-based AED circuitry to deliver reversible high-voltage shocks in a smaller, more reliable package.
Alternative boot drives and staged updates keep a wearable defibrillator secure without interrupting ECG monitoring or shock delivery.
Impedance checks on unopened defibrillator pads and relay switching self-tests detect drying and relay faults without shortening pad shelf life.
A controller switches between triggered and asynchronous pacing during magnetic disturbance exposure to avoid false sensing and maintain therapy.
Detecting pauses in fast ventricular events and checking signal morphology helps distinguish SVT from VT/VF and avoid unnecessary therapy.
A short onset window and longer confirmation window help implantable devices filter transient detections and identify sustained arrhythmia episodes.
Pseudo-electric vectors convert non-invasive ECG data into 3D cardiac representations to assess dyssynchrony and guide CRT lead placement.
Transformer secondary energy is synchronously rectified into adjustable floating bias voltages, enabling polarity reversal and more compact AED construction.
Baseline QRS data and matched-difference filtering help detect complexes despite electrode-shift artifacts and compute heart rate.
This case uses smartphone power, voltage boosting, and capacitor charging to shrink AED hardware and avoid routine internal-battery replacement.