The oldest prosthesis in the world
Now the prosthesis we see has this kind of â–¼
There is such a â–¼
There is also such a â–¼, this has been very important to design, and it is both functional and aesthetic.
But can you think of the prosthetic limbs in ancient times?
â–²This is the oldest prosthetic body ever discovered in the world. It is a toe prosthesis made of wood and leather by ancient Egyptians. According to the conditions at the time, this artificial limb has been made very realistic. Don't underestimate her, she is 3,000 years old.
Gentleman's Dr. Renee doctor and stethoscope
French doctor Renek is really a gentleman. Because of his gentleman, he knows that men and women do not kiss. One day, when a woman auscultated a heart disease, he thought about giving the patient a good medical treatment, and could not touch the woman's body casually. He suddenly inspired to roll up the newspaper and put it on the patient's chest. This is the prototype of the world's first stethoscope, which was in 1816. Dr. Reineck’s invention not only improved the efficiency of the visit, but the story behind the invention was also passed down as a beauty talk.
The current stethoscope is no longer a cylinder, and it is an important prop for doctors in TV series.
â–² I have grown up watching TVB know that doctors wearing stethoscopes.
Roentgen and X-ray
â–² In 1895, Roentgen discovered X-rays.
It is said that the German scientist William? When Roentgen tested the cathode tube, it was observed that a nearby fluorescent screen was illuminated, and the rays that illuminate the screen seemed to be able to pass through various substances and would not be totally reflected like visible light. At that time, Roentgen did not understand the significance of this kind of radiation in the medical field until he used this kind of radiation (called the roentgen beam for a long time) to take a picture of his wife's hand. This photo and the rings in the photo have become the classics of medical photography for centuries, and X-rays have become the standard of hospitals.
The first artificial heart is controversial
â–² In 1956, Dr. Henry Heimlik made the first artificial heart, but it was not actually transplanted to the patient.
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