ATRIAL DEFIBRILLATOR AND METHOD FOR PROVIDING T WAVE DETECTION AND INTERVAL TIMING PRIOR TO DEFIBRILLATION

摘要

PURPOSE: To provide defibrillation electric energy on atria of a human heart in need of the cardioversion. ;CONSTITUTION: The atrial defibrillator includes a first detector 52 for detecting R waves of a heart, a second detector 51 for detecting T waves of the heart and a third detector 53 for detecting atrial activity of the heart. An atrial fibrillation detector 70 responds to the third detector 53 and determines when the atrial defibrillation is necessary. A discharge circuit 82 applies the cardioverting electrical energy to the atrium of the heart when the atria of the heart are in need of cardioversion after the T wave has been detected and in timed relation to an R wave detected by the first detector after the detected T wave is completed. The atrial defibrillator contains a timer 62 used for timing a predetermined delay time after the T wave is detected. Before the atria are cardioverted in timed relation to a detected R wave, this delay time must be completed to assure that the detected T wave is completed.;COPYRIGHT: (C)1994,JPO