** Medical device maker's shares AVGR.O tumble 19.2% to
$0.70 premarket after announcing prices for a stock offering
expected to raise gross proceeds of $4.5 mln
** Avinger Inc is the third most actively-traded U.S. stock
before the bell
** Co to sell 6.4 mln shares at 70 cents apiece; Pricing
reflects a 20% discount to stock's last close urn:newsml:reuters.com:*:nACSfzmJDa
** Offering represents about 62% of company's free float
** Co intends to use the net proceeds from offering to fund
working capital, pay interest on debt
** AVGR shares have lost about a third of their value in the
past year
(Reporting by Medha Singh in Bengaluru)
((medha.singh@thomsonreuters.com))