Rib spreaders allow doctors the ability to get inside the human chest and fix the internal organs. However, these devices, created in the 1930s, can do a great deal of damage to ribs, nerves and ligaments. Hugh Crenshaw and Charles Pell, co-founders of the medical technology company Physcient wanted to change that, so they designed a new kind of rib spreader, one that spares the patient the needless agony caused by old models. Host Frank Stasio talks to Crenshaw and Pell about their medical innovation.