LUXEMBOURG--(BUSINESS WIRE)--Jean Boulle Medtech Ltd, a Jean Boulle Group (www.jeanboullegroup.com) medical technology company and founding investor of Tendyne Holdings, Inc. ("Tendyne"), is pleased to announce that Abbott Laboratories (NYSE: ABT) has closed its acquisition of Tendyne (www.tendyne.com). Abbott thereby acquires the remaining shares of Tendyne that it does not already own for US$250 million plus potential future payments tied to regulatory milestones. This acquisition culminates