Appliances for washing body cavities; Ear plugs for noise reduction; Enema apparatus; Heart rate monitoring apparatus; Injection instruments without needles; Massage apparatus and instruments; Massage chairs; Medical devices for treating sleep disorders; Orthopedic supports; Oxygen masks for medical use; Physical exercise apparatus, for medical purposes; Sanitary masks for dust prevention for medical purposes; Urethral syringes; Uterine syringes; Vaginal syringes