VLV sues Becton, Dickinson over ‘bloodless catheter’ patent | Legal News April 30, 2012 By MassDevice staff Leave a Comment Becton Dickinson & Co. (NYSE:BDX) is facing a patent infringement lawsuit filed by VLV Assoc., a small medical device company based in New Jersey, accusing it of infringing VLV’s patent for a "bloodless catheter."