Dr. Leonard Lee, a cardiac surgeon, explains every common tool he uses when he performs heart surgery in his operating room. MORE INSIDER VIDEOS: Every Major Tool A Plastic Surgeon Uses | Expert Toolbox https://www.youtube.com/watch?v=c_iQyAIzAgI What 7 Fake Injuries Look Like Behind The Scenes | Movies Insider https://www.youtube.com/watch?v=NT9npI1lsi4 Watch 10 Designer Items Get Restored | Refurbished https://www.youtube.com/watch?v=Dn-hQLwdw2U ------------------------------------------------------ #CardiacSurgeon #ExpertToolbox #Insider Insider is great journalism about what passionate people actually want to know. That’s everything from news to food, celebrity to science, politics to sports and all the rest. It’s smart. It’s fearless. It’s fun. We push the boundaries of digital storytelling. Our mission is to inform and inspire. Subscribe to our channel and visit us at: https://www.insider.com/ Insider on Facebook: https://www.facebook.com/insider/ Insider on Instagram: https://www.instagram.com/insider/ Insider on Twitter: https://twitter.com/thisisinsider Insider on Snapchat: https://www.snapchat.com/discover/Insider/4020934530 Movies Insider on Snapchat: https://www.snapchat.com/discover/Movies_Insider/9616609930 Insider on TikTok: https://www.tiktok.com/@insider Every Major Tool A Heart Surgeon Uses | Expert Toolbox