University of Minnesota Retractor University of Minnesota Retractor CRM The Minnesota Retractor is used to hold mucoperiosteal flaps, cheeks, lips, and tongue away from the surgical area measuring 5.5" long and 20.5mm wide. Where to Buy x Category Dealer PartnersSales RepresentativeStrategic MarketsSchools RepresentativeAccutron™ Equipment Sales Zip Code Find RepresentativeReset Select a category, input a zip code and click on Find Representative, or explore the complete list here.