what was invented in the 17th century which helped doctors to perform surgery more effectively?
microscopes, they allowed scientists like Pasteur to see the micro-organisms they described. Once Pasteur's germ theory had been proved correct, doctors better understood the need for clean surgical equipment.
what was invented in 1440 that helped the spread of medical ideas?
the printing press, it allowed medical ideas to be spread around Europe quickly and more cheaply. This helped scientists such as Pare, Vesalius, Harvey, Nightingale, and Hunter. It allowed people to rediscover the works of Galen and Hippocrates.
