ISRG >>How much is procedure % growth greater then the pace of Davinci installations? I think it is a good question.<<
1Q09
Procedure growth: 60%
da Vinci system installation growth: -11%
Difference: 71%.
Okay, I know that isn't quite what you wanted, but there is a lot of related data out there in the SEC filings and cc's. I&A revenue per system in the installed base is something I keep track of. And the company shares the approximate I&A revenue per procedure, including and not including initial stocking orders. From those numbers you can approximately track procedures per system in the installed base. I believe that has grown roughly linearly for the past five years.
micro