Intuitive Surgical, Inc. is an American corporation that develops, manufactures, and markets robotic products designed to improve clinical outcomes of patients through minimally invasive surgery, most notably with the da Vinci Surgical System. The company is part of the NASDAQ-100 and S&P 500. , Intuitive Surgical had an installed base of 6,730 da Vinci Surgical Systems, including 4,139 in the U.S., 1,199 in Europe, 1,050 in Asia, and 342 in the rest of the world. History The research that eventually led to the development of the da Vinci Surgical System was performed in the late 1980s at a non-profit research institute SRI International. In 1990, SRI received funding from the National Institutes of Health. SRI developed a prototype robotic surgical system that caught the interest of the Defense Advanced Research Projects Agency (DARPA), which was interested in the system for its potential to allow surgeons to operate remotely on soldiers wounded on the battlefield. In 1994, Dr. Frederic Moll became interested in the SRI System, as the device was known at the time. At the time, Moll was employed by Guidant. He tried to interest Guidant in backing it but to no avail. In 1995 Moll was introduced to John Freund who had recently left Acuson Corporation. Freund negotiated an option to acquire SRI's intellectual property and incorporated a new company that he named Intuitive Surgical Devices, Inc. At that point Freund, Moll, and Robert Younge (also from Acuson) wrote the business plan for the company and raised its initial venture capital. Early investors included the Mayfield Fund, Sierra Ventures, and Morgan Stanley. The company refined the SRI System into a prototype known originally as "Lenny" (after the young Leonardo da Vinci), which was ready for testing in 1997. As the company's prototypes became more advanced, they were named using da Vinci themes. One was named "Leonardo", and another was "Mona". The final version of the prototype was nicknamed the da Vinci Surgical System, and the name stuck when the system was eventually commercialized. After further testing, Intuitive Surgical began marketing this system in Europe in 1999, while awaiting FDA approval in the United States. The company raised $46 million in an initial public offering in 2000. That same year, the FDA approved use of the da Vinci Surgical System for general laparoscopic surgery, which can be used to address gallbladder disease and gastroesophageal disease. In 2001, the FDA approved