A - Human Necessities – 61 – N
Patent
A - Human Necessities
61
N
326/1, 354/70
A61N 1/36 (2006.01) A61N 1/37 (2006.01) G01R 21/00 (2006.01)
Patent
CA 1182529
CIRCUIT AND METHOD FOR MEASURING PSA OUTPUT AND ENERGY Thomas C. Barthel ABSTRACT OF THE DISCLOSURE Apparatus and method for accurately measuring the energy output of a pacing system analyzer or other pulse generator. Voltage measurements are made across the output capacitor before and after the pulse is generated. These voltages are measured by a microprocessor using an analog-to-digital converter and various gating and control circuitry. By using a known value of capacitance for the output capacitor along with the voltages measured before and after the stimulation pulse is generated, the microprocessor can calculate the total amount of energy within the stimulation pulse. This value is displayed on an integral display device. Through the use of additional circuitry, measurements may be made for both atrial and ventricular stimulation pulses in a dual chamber stimulation device. Provisions have also been made for measuring the output energy for constant voltage pulse generators. This technique employs measurement of pulse width.
404980
Medtronic Inc.
Smart & Biggar
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