Intuitive Surgical, Inc. (NASDAQ: ISRG) shares are trading higher after the company reported better-than-expected fourth-quarter financial results. What To Know: Intuitive Surgicalreported quarterly earnings of $1.60 per share, beating analyst estimates of $1.48, a 30.08% increase over earnings of $1.23 per share from the same period last year. The company reported quarterly sales of $1.93 billion, clocking in above the analyst consensus estimate of $1.87 billion, a 16.51% increase over sales of $1.66 billion from the same period last year. Cash, cash equivalents and investments at the end of …