Defibrillator ECG Acquisition and Analysis

Automated external defibrillators are medical devices used to treat sudden cardiac arrest. If administered within minutes of cardiac arrest, a defibrillation shock can reset the heart to a normal synchronous rhythm and improve the outcome of cardiopulmonary resuscitation. The sponsor is interested in developing a prototype defibrillator intended for affordable personal ownership. The design emphasis is on small size, ease of use, and simplicity of function in light of FDA stipulations regarding safety and effectiveness. The goal of this project is to design the diagnostic front end of the defibrillator, which acquires, filters and digitizes the electrocardiogram sample. An algorithm analyzes heart rhythm and determines whether a shock is appropriate, as in the case of ventricular fibrillation or ventricular tachycardia, or not. The device’s microcontroller determines actions required and if necessary can communicate with the shocking portion of the defibrillator designed by team 15071. All device activity is logged and stored.