Intuitive Surgical, Inc. (NASDAQ: ISRG), the leader in operative surgical robotics, will hold its quarterly conference call to discuss First Quarter 2011 results, Tuesday, April 19, at 4:30 p.m. Eastern Time. This call is being webcast by Thomson Reuters and can be accessed at Intuitive Surgical’s web site at www.intuitivesurgical.com. The webcast is also being distributed over Thomson Reuters’ Investor Distribution Network to both institutional and individual investors. Individual investors can listen to the call through Thomson Reuters’ individual investor center at www.earnings.com or by visiting any of the investor sites in Thomson Reuters’ Individual Investor Network. Institutional investors can access the call via Thomson Reuters’ password-protected event management site, StreetEvents ( www.streetevents.com).