When you go to the doctor, there are a few basic devices that will be used on a regular basis. That is to say, certain tools that will be employed almost every time. While most of us know what they look like and have a general idea of what they do, we rarely know their names and full purpose. So let’s take a closer look at the four most commonly used medical instruments.
The first on the list is a stethoscope. This is what a doctor uses to listen to your heart. It consists of a membrane on the circular plate that works like an eardrum in that it will pick up vibrations. These get sent down the tube and into the earpieces so that the doctor can easily hear your heart beating. Nothing really more complicated than that on this one.
The next is the sphygmomanometer. This sure sounds like a mouthful, but it is just the blood pressure cuff. It tightens around your arm and a pressure gauge shows how tightly. As the blood tries to flow in and out of the area, this pressure is lessened until it can do so. The doctor could then hear the heart beat in the area. That lets him know the systolic pressure. The lowest place he can still hear it is the diastolic.
Next we come to the opthalmoscope. This is a tool used to look into the eyes. It allow the doctor to see if there’s anything wrong and is useful in detecting early signs of certain diseases.
Finally, we have the otoscope. This tool is the one used to see inside your ear. It it used to check for blockages, infections and problems with the eardrum. Consisting of just a light and a magnifying lens setup, it’s a simple, yet necessary tool.