The contribution of biomedical engineering to medical treatment is also reflected in the invention of artificial organs and their wide application to human organ replacement. As we all know, the immune rejection reaction will occur between organs of different human bodies, which will make the organs with low similarity be attacked by their own T lymphocytes and lead to the failure of organ transplantation, but the invention of artificial organs solves this serious problem well. Professionally speaking: when human organs cannot be saved by conventional methods due to disease or injury, modern clinical medical technology may use an artificially manufactured device to replace the diseased organ or compensate for its physiological function, which is called artificial organ. Such as before the 1950s, rheumatic heart valve disease treatment, in addition to the application of anti-rheumatic drugs, cardiac drugs, symptomatic treatment, it is difficult to repair and improve the damaged valve, many patients died of heart failure. Today, it is possible to apply the technology of extracorporeal circulation of artificial heart-lung machine to cut open the heart under the state of cardiac arrest, replace the artificial valve or repair the atrial and ventricular septal defects, so as to make the patients with heart valve disease and congenital heart disease to restore their health. Cardiac surgery has reached the level it is at today, mainly as a result of the introduction of artificial heart-lung machines and the use of new materials and technologies such as artificial heart valves and artificial blood vessels.
With the development of society and the extensive improvement of people's living standard, some new diseases begin to haunt some middle-aged and old people, such as renal failure, uremia and other diseases. And the artificial kidney hemodialysis technology has saved the lives of a large number of patients with advanced renal disease, and nephrology has made great progress as a result. The development of artificial organs in modern biomedical engineering is also very rapid, in addition to the above artificial organs, artificial joints, artificial pacemakers, artificial hearts, artificial livers, artificial lungs and so on have been applied in the clinic, which have restored the health of millions of patients. It can be said that the various organs of the human body in addition to the brain can not be replaced by artificial organs, the rest of the organs have the possibility of replacement by artificial organs.
In addition, radiology, ultrasound medicine, laser medicine, nuclear medicine, medical electronic technology, computer telemedicine technology and other advanced medical technology and equipment are the results of modern medical engineering research and development. In short, biomedical engineering is becoming an important part of modern medicine, which is inseparable from and indispensable to modern medical diagnosis and treatment, and is increasingly playing its great value.