** Shares in Ambu OMXCOP:AMBU_B rise around 4% and are among top movers on Europe-wide STOXX 600 TVC:SXXP index
** Analysts point to import alerts released by the U.S. Food and Drug Association (FDA) on some products of its Japanese competitor Olympus TSE:7733
** "The affected devices include ureteroscopes and bronchoscopes (among others), where Olympus is competing with Ambu," Tobias Berg Nissen, Danske Bank analyst on healthcare, says
** Nissen notes this could provide some tailwind for the Danish endoscope maker as hospitals seek alternatives to Olympus devices
** The alert includes the BF-P190 broncho, which is one of the most widely used Olympus bronchovideoscopes, and that might slightly improve Ambu sales near term, Martin Brenoe from Nordea notes
** Olympus shares close down 10.6% on Wednesday in Tokyo trading