Who was the first to invent an artificial heart valve and successfully implant it in a human beating heart?

Answer 1

Dwight Harken.

Dr. Dwight Harkin was a U.S. Army Surgeon and saw many soldiers who had shrapnel or bullets imbedded in their hearts. The human heart was one organ that had never been violated by the surgeon's scalpel and no attempt was made to remove the fragments from the soldier's hearts. However, the problem got him interested in the possibility of doing surgery on the heart while it was still beating. His experiments on dogs proved that closed heart surgery could be performed successfully. In 1960 at Peter Bent Brigham Hospital in Boston he made an artificial valve and successfully implanted it to replace the damaged aortic valve of a human heart. New devices and procedures are always preceded by others. (At an earlier date Harken and Bailey independently had performed a closed heart procedure to dilate a constricted mitral valve with their finger, with initial poor . Lillehei is considered the Father of open heart surgery, which he performed after the patient's body temperature had been reduced to 80 degrees .
Barnard performed the first heart transplant).

Answer 2

the middle beats in a particular flow, ultimate 2 chambers beat first then backside 2. it is not substantial what place you're in. The physique is designed to circulate blood in one direction in effortless terms so as that it circulates the finished physique. Now stunning the opposite direction up does some thing completely diverse to the physique, however the blood keeps to pass in one direction.