Cannulae; Surgical instruments and apparatus; Anesthesia monitoring apparatus, namely, patient monitors for anesthesia; Anesthesia respiration apparatus for artificial respiration; Medical apparatus and instruments for use in surgery; Surgical mirrors; Mirrors for surgeons; Mirrors for medical examination purposes; Surgical apparatus and instruments for veterinary purposes; Medical diagnostic instruments for the analysis of body fluids; Tools for medical diagnostics, namely, cytometers, hematology analyzers; Diagnostic apparatus for the detection of periodontal disease; Medical apparatus and instruments used specially in ear, nose and throat diagnostic, examination and surgery; Dental instruments for use in oral surgery; Dental tools, namely, syringes, mirrors, gloves; Dental apparatus, namely, apex locator, intra-oral light systems; Medical instruments used to pull forward and raise a human tongue, namely, tongue depressor, tongue retractor