** Medical device maker's shares AVGR.O jump as much as
40.6% to 96 cents; stock one of top three gainers across
exchanges and set for best day in over 10 months
** Co receives FDA clearance to expand the use of its
Pantheris system to treat in-stent restenosis (ISR) in lower
extremity arteries urn:newsml:reuters.com:*:nACS16G98a
** ISR is a condition in which a part of a blocked artery
that was opened up with a stent in surgery becomes narrow again
** AVGR's Pantheris was approved in 2015 for atherectomy, a
treatment in which plaque build-up is cut from a blood vessel
before it can eventually lead to a heart attack
** About 24 mln shares change hands, about 25x 25-DMA
** Stock has risen 57% this year up to Tuesday; Wednesday's
moves bring it up to 90%
(Reporting by Ruhi Soni in Bengaluru;)
((Ruhi.Soni@thomsonreuters.com; Twitter: https://twitter.com/ruhithere;))