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ELECTROCARDIOGRAPH1

ELECTROCARDIOGRAPH1 - SEMINAR PRESENTATION ON...

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SEMINAR PRESENTATION ON “ELECTROCARDIOGRAPH” PRESENTED BY:- SAURABH DIXIT IV yr, ECE(Sec-B) GUIDED BY:- CO-ORDINATED BY:- MR. NITIN DWIVEDI Mr. DURGESH KUMAR LECTURER(ECE) Mrs. MADHURI SAHAL www.powerpointpresentationon.blogspot.com
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CONTENTS History Need Electrocardiogram Understanding of waveform and timing Electrocardiograph Components Block diagram Process Placement of electrodes Voltage relationships Heart rate measurement Applications
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HISTORY As long ago as 1855, researchers Kollicker and Mueller discovered that when a motor nerve from a frog’s leg was laid over its beating heart, the leg would kick with a regular beat. Alexander Muirhead is reported to have attached wires to a feverish patient's wrist to obtain a record of the patient's heartbeat in 1872 at St. Bartholomew's Hospital. This activity was directly recorded and visualized using a Lippmann capillary electrometer.
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NEED OF ECG?? Initially there was no device to monitor functioning of heart. Every heart problem was only detected by monitoring heart rate. So doctors found a need of detecting the electrical activity of heart thus setting a standard electrical wave for proper functioning of heart. So a device has to be made to plot this wave.
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ELECTROCARDIOGRAM The electrocardiogram (EKG) is a representation of the electrical events of the cardiac cycle. Each event has a distinctive waveform, the study of which can lead to greater insight into a patient’s cardiac operations.
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Understanding of the ECG waveform
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Timing of intervals and waves P wave - 80 ms.
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