Description: The Advancement of Medical Devices for Longer Lifespans and Healthier Lives Dongbang Sak from the legend, Qin Shi Huang who unified China and ruled the world, and Emperor Wu of Han who built the Silk Road connecting East and West—all shared the same dream: to live forever without aging. Just over 100 years ago, the average human lifespan was only 46 years, making a long, healthy life without disease seem like an impossible dream. But now, with the average lifespan expected to reach 76 within 30 years, that dream no longer seems so impossible. Behind this progress lies the advancement of medicine and medical devices. In the past, medicine was not very scientific. Doctors used their own ears instead of stethoscopes to listen to sounds in the body, checked fevers by hand, and without machines like X-rays or ultrasounds, the only way to find problems inside the body was to open it up directly. Surgical tools were neither as varied nor as sanitary as they are today, so not only was the success rate of surgery low, but patients often became infected with bacteria during operations. However, now that medical devices have advanced, doctors can look inside the body beforehand using MRI, CT scans, and X-rays to diagnose illnesses. With a wider variety of surgical tools and the development of cutting-edge surgical robots, doctors can now operate on areas that are hard to reach or see with the human eye, allowing for more precise and varied treatments tailored to each patient's condition. Home medical devices have also become common, making it possible to check your temperature, blood pressure, or blood sugar right at home. 'Why? Medical Devices' explores the types and principles of medical devices used to diagnose and treat illnesses. It also introduces the cutting-edge medical devices in use today and the new medical technologies yet to come. Through this book, readers will discover the many devices and technologies that are making human lives better. Contents: Introducing Why? Medical Devices What Is a Secret House Medicine? Find the Spy! The Dark Shadow of New Drugs in the Study What Are Medical Devices? Diagnostic Medical Devices Imaging Diagnostic Devices Chemical Diagnosis Treatment Devices The Doctor's Story Rehabilitation Medical Devices Home Medical Devices Blood Tests Who Is the Spy? Emergency Medical Devices The Side Effects of Medical Progress and Bioethical Issues Catching the Spy The Future of Medicine For a World Without Health Inequality