Have you ever heard of a pulse oximeter also called blood oxygen monitor or fingertip pulse oximeter? If you have lung or heart disease, it can be used regularly at home to monitor your illness. Or maybe you got pinched in your finger while traveling in the emergency room or in the hospital.

The stethoscope is the most commonly used diagnostic tool for gynecologists inside and outside, which include variant types like the acoustic stethoscope, electronic stethoscope, and fetal stethoscope. It becomes the symbol of doctors. The invention of the stethoscope began the development of modern medicine. Since its clinical application on March 8, 1817, the stethoscope has been continuously improved in appearance and sound transmission mode, but its basic structure has not changed much. It is mainly composed of picking up part (chest part), conducting part (rubber tube), and listening part (earpiece). So what is the physics of a stethoscope? Let's take a look. The construction for his article as follows

When you have a medical examination in the hospital or the medical examination center. Usually, we use an aneroid sphygmomanometer to measure blood pressure.From 2020, it is not convenient to go to the hospital, and you can buy some personal medical tools to evaluate your body. The aneroid sphygmomanometer is the one that you can buy. Maybe you still don’t know how to use it.

In the early days, we used mostly mercury thermometers. You can use the mercury thermometer to measure the temperature from your mouth or underarm when you have a fever. But with the development of technology, digital thermometers gradually began to become popular, and also you can use the digital thermometer for fever, Mercury thermometer and a digital thermometer, which one is better?This article will help you to find the advantages of a digital thermometer compared with a mercury thermometer.