DEVICE OF RECORDING PHONOCARDIOGRAM WITH A CONVENTIONAL ELECTROCARDIOGRAPH

The present invention is related to a device of recording phonocardiogram with a conventional electrocardiograph. It is one kind of medical diagnostic electronic instrument. In the said device, the use of frequency compensated amplification overcomes the problem of less response to high frequency of recording pen. Therefore through the said device a phonocardiogram can be recorded by using the conventional electrocardiograph without any change. Because of the use of noise eliminating circuit, a phonocardiograph can be recorded in a common room. Through an output socket, the heart sounds can also be monitored, recorded and displayed. The present invention can provide the electrocardiographs, which are now widely use in various hospitals, with a kind of small, exquisite, convenient and cheap accessary.