Abstract: An electrical stimulation system to provide pulse stimulation to an area of a living body by way of one or more electrode leads applied to the area, the area including an associated resistance element and an associated capacitance element. The system may include a pulse generating circuit having a controllable output voltage to generate constant voltage pulses to the one or more electrode leads, wherein the corresponding current signal of each constant voltage pulse includes an exponential decay to a steady state current value. The system may include a controller configured to estimate the associated resistance element of the area, determine a specified target steady state current value to be applied to the area, and control the pulse generating circuit to generate a constant voltage pulse to the one or more electrode leads at a calculated voltage level which achieves the specified target steady state current value to the area.

Abstract: An electrical stimulation system to provide pulse stimulation to an area of a living body by way of one or more electrode leads applied to the area, the area including an associated resistance element and an associated capacitance element. The system may include a pulse generating circuit having a controllable output voltage to generate constant voltage pulses to the one or more electrode leads, wherein the corresponding current signal of each constant voltage pulse includes an exponential decay to a steady state current value. The system may include a controller configured to estimate the associated resistance element of the area, determine a specified target steady state current value to be applied to the area, and control the pulse generating circuit to generate a constant voltage pulse to the one or more electrode leads at a calculated voltage level which achieves the specified target steady state current value to the area.

Abstract: A signal management system is disclosed which integrates a patient switching box and an amplification unit into a single compact enclosure sufficiently small to reside by the patient table in an operating unit set up for electrophysiology procedures. The system includes a front panel designed to accept standard ECG leads, a plurality of intracardiac leads, including leads available for stimulation and/or lesion generation, and a plurality of pressure channels. The front panel also includes a touch screen display to allow quick assignments of labels to each of the ECG or intracardiac leads and the pressure channels. The system includes an onboard microprocessor which allows any operation performed on the System to be automatically updated on a remote computer processing unit if attached, and vice-versa. Digital signal processors are used in the system to perform switching operations on the electrical signals received, and to perform gain, limiting and/or filtering processes thereon.

Abstract: A versatile electrophysiology system including an amplification system, an ablation machine, a filter box, a display monitor and a chart recorder as well as an optional data management and analysis system wherein the amplification system receives endocardial signals from an ablation catheter during both the electrophysiology study and the ablation procedure and wherein the amplification system, ablation machine and ablation catheter are interconnected with the filter box such that the endocardial signals and the high energy ablation signal pass therethrough and are filtered thereby.

Abstract: A versatile electrophysiology study monitoring system including an amplification system, a real time display monitor and a chart recorder as well as an optional data management and analysis system wherein the display monitor and chart recorder are controllable directly from the amplification system which may be positioned at the bedside of the patient to provide a portable system which may be used at the bedside of the patient or in the electrophysiology laboratory and which also includes a 32 channel display of physiological data and user settable filter settings for high and low pass filters.