In the mid 1980s, robots started performing medical surgeries. The first medical surgeries by robot “PUMA 560” was carried out in 1985 and used for brain biopsy. Later on, robots used for hip replacements and prostate surgery. The da Vinci Surgical System was introduced in the late 1990s for mitral valve repair, prostate cancer surgery and hysterectomies. This system has three components namely, high definition three dimensional system, four arms that can be controlled remotely, and a console for the surgeon.