The organization that made the recommendation yesterday represents over 56000 physicians. Which means this is going to be the over all report that the FDA is going to receive from its survey. FDA now has no choice but to either revoke its license or suspend Da Vinci. Even hospitals and doctors that tend to like this deice will tend to shy away from it.
If you are in profit, take it and fight the battle some other day. If you bought this stock in 500s you really should not be allowed to trade.