Do you know what the earliest ECG pilots were like?

Today's EEG machine EEG machine editor takes you into the early days of the ECG machine, I believe many friends did not know what the earliest ECG machine looks like. Let's see the EEG machine. Can you guess what the person in the picture is doing?

The man's hands and left foot were immersed in saline solution, and the wires connected the three solution pools to a machine. Is this check method familiar? Yes, this is exactly how the body leads are connected when recording the electrocardiogram.

The dazzling machine in the picture is the early ECG machine. In fact, this is already an improved machine. When the first electrocardiograph was put into use in 1903, the guy weighing about 600 pounds (272 kilograms) needed 5 people to operate at the same time, and its electromagnet was constantly cooled by water. To design and manufacture it, the Netherlands Physiologist Ein Tofen spent three full years.

Before that, scientists have discovered that certain physiological activities of the human body, such as heart beats, are accompanied by changes in biological currents. However, this current is very weak and difficult to measure through the body surface. The invention of the string-type ammeter makes it possible to detect changes in current through the body surface. Simply put, a string-type galvanometer is roughly divided into four parts, a powerful electromagnetic field, a very fine silver-plated quartz wire, a lighting device, and a roll of constant-speed photosensitive paper.

Electrocardiographs today have become small and convenient. Some patients with heart disease can even take the machine with them to record 24-hour ECG changes to capture moments of illness that are easily overlooked or missed. Electrocardiogram examination has become the most common examination item in clinical medicine due to its fast, non-invasive, objective and accurate characteristics, and has an irreplaceable position in the diagnosis of heart diseases.

The current ECG machine is playing a great role in the market. If you have any questions about the ECG machine, please feel free to call us on the EEG machine.