Endo X Trainer™  Developed at the Mayo Clinic for Endoscopic Training. Barton Button™ Tracheostoma Buttons  A tracheostoma button for Larygectomees. Rochester Bone Biopsy™ Trephine  7.5mm bone biopsy for bone histology and histomorphometry. Rochester Cannula Clamp™ Reusable Hose Clips. Rochester Nasal Septal Button™  Closes nasal perforations up to 25mm. Rochester Patient Status and Exam Lights  Used at several hospitals including the Mayo Clinic.   Products and devices that are manufactured under a contractual agreement with other medical device companies and manufacturers include: Lee Lok® Bone Marrow Biopsy and Harvest Needle, manufactured for       Lee Medical, LTD., of Minneapolis Minnesota IAP Products for Veterinary use, manufactured for IAP Inc., of Rochester       Minnesota.