A Washington man has filed a class action lawsuit against St. Jude Medical on behalf of individuals who were implanted with Riata or Riata ST defibrillator leads, which have been recalled from the market due to problems with the insulation that may allow the small wires to become exposed inside the body.   The complaint (PDF) was filed in U.S. District Court for the Western District of Washington on April 12. The lawsuit was brought by K Sean O’Neil and his wife S.L. O’Neil, seeking class action status to include claims for all Washington state residents who received the ICD…