During his surgical residency at Virginia Mason Medical Center in the early 1980s, Moll says he was “struck by the size of the incision and injury created just to get inside the body.” He left his residency to develop the safety trocar, which helped make general laparoscopic surgery possible, and funded - and later sold - two medical equipment businesses in Silicon Valley: Endotherapeutics and Origin Medsystems. He also obtained an M.S. degree in business management from Stanford University. Following its acquisition by Eli Lily, Origin MedSystem became an operating company within Guidant in 1992. Moll served as medical director of Guidant's surgical division until 1995. During this time, he became certain that robotics could help to make routine surgery less invasive, and in 1995 left Guidant to found Intuitive Surgical with John Freund and Rob Younge. Since this time, Intuitive has worked on developing minimally-invasive, robotic assisted tools and platforms, including the da Vinci system for robotic-assisted surgical procedures, and the CyberKnife, a precision radiation robot for the treatment of tumours. Moll left Intuitive Surgical in 2002 to become founder & CEO of Hansen Medical, which developed robotic systems for vascular and interventional electrophysiology procedures, and a robotically-steered catheter sheath. Hansen Medical received Frost & Sullivan's Product Innovation Award in 2008 for US Image-Guided and Robotic Assisted Surgery Devices. Moll was a board member of Mako Surgical until its sale in 2013. Moll co-founded surgical robotics company Auris Surgical Robots, now Auris Health, with Hari Sundram and J.P Velis in 2007. Auris Health's Monarch system is a diagnostic tool that uses robotic-assisted endoscopy. Its application in the earlier and more accurate diagnosis of lung cancer was approved by the FDA in 2018. Johnson & Johnson announced its acquisition of Auris Health in February 2019; Moll joined J&J as Chief Development Officer as part of the acquisition, and was involved in the acquisition of Verb Surgical from Alphabet Inc.'s Verily Life Sciences at the end of 2019. In 2016, Moll joined the board of RefleXion, a medical equipment company developing a biologically-guided radiation therapy system for cancer treatment.
