Shares of Intuitive Surgical (NASDAQ:ISRG) dropped 7% yesterday after the company pre-announced earnings. Revenue was down 24% year over year, which was well beyond analysts' consensus estimate. However, in today's Stock of the Day, Motley Fool analyst Sara Hov says she doesn't see the news as all bad.

Part of that precipitous drop was $26 million in deferred revenue, which inflated the bad news a bit. The good news for the company, however, is that the FDA just approved its newest surgical robot system last week, the da Vinci Xi, which is a considerable upgrade both in terms of usability and capability from its previous model. Investors are hopeful that the new system can help the company expand into more complicated surgeries and wider use of its surgical robots.

Sara sees that part of the thesis as key in deciding whether this stock is a buy today. If the new system succeeds in gaining the company wider adoption of its systems, then yesterday's pullback could represent a good buying opportunity for Intuitive Surgical investors.

Erin Kennedy and Sara Hov have no position in any stocks mentioned. The Motley Fool recommends and owns shares of Intuitive Surgical. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.