The EPS320 Cardiac Stimulator by Micropace Pty Ltd. is a diagnostic external programmable cardiac stimulator. The Stimulator consists of a self-contained two channel microcontroller-based Stimulus Generator Unit independently capable of generating simple regular pacing pulses, but under normal use externally interactively programmable by the user for complex pacing patterns via a serial data link, using a custom software program implemented on a standard personal computer. The two stimulation channels are independent isolated constant current pulse generators capable of generating 0.5 to 10ms pulses at 0.1 to 25mA with a maximum output voltage of 27V. The stimulus output may be used to stimulate the human heart during electrophysiological studies via any third party legally marketed transvenous intracardiac pacing catheters directly or via any third party legally marketed EP recording equipment intended to switch pacing pulses of above description without distortion to selected specific catheters and electrodes.
The Stimulus Generator Unit is mains-powered via a DC power supply and has an internal trickle-charged backup battery in case of power failure. Its outputs are defibrillator and RF energy protected and it features external ECG input ports as well as catheter-tip ECG sensing for triggering of pacing events and three trigger output channels for synchronization with other equipment. The system is powered from the mains via a medical grade isolation transformer.
The EPS320 software allows interactive programming of all aspects of the pacing stimulus: the current amplitude, pulse width, delivery to channel 1 or 2 or both, and all stimulus parameters including drive train number, timing and up to 6 extra-stimuli. The stimulator has an intuitive user interface, with all commonly used stimulus and pacing protocol parameters located on fixed menus on the one screen instantly adjustable via hotkeys including during actual pacing. All standard EP stimulation protocols are available pre-programmed but may be reconfigured and automated according to user requirements.