Tyber Medical Announces the Full Market Release for the TyWedge™ Evans and Cotton Osteotomy Wedge System February 9, 2016 Tyber Medical LLC, a privately held medical device company focused on developing innovative orthopedics and spine devices for private label opportunities, announces The Full Market Release for the TyWedge TM Osteotomy Wedge Systems, a sterile titanium plasma sprayed PEEK wedge implant. Download PDF.