Intuitive Surgical ( ISRG) designs, manufactures and markets da Vinci Surgical Systems, EndoWrist instruments and surgical accessories. This stock is trading up 1.7% at $547.75 in recent trading. Today's Volume: 376,000 Average Volume: 370,515 Volume % Change: 80% From a technical perspective, ISRG is bouncing notably higher here right off some near-term support at $540 with above-average volume. This move is quickly pushing ISRG within range of triggering a near-term breakout trade. That trade will hit once ISRG manages to take out some near-term overhead resistance at $554.77 with high volume. Traders should now look for long-biased trades in ISRG as long as it's trending above $540, and then once it sustains a move or close above $554.77 with volume that hits near or above 370,515 shares. If that breakout triggers soon, then look for ISRG to re-test or possibly take out its next major overhead resistance levels at $569.95 to $594.89. To see more stocks rising on unusual volume, check out the Stocks Rising on Unusual Volume portfolio on Stockpickr. -- Written by Roberto Pedone in Winderemere, Fla.