Crutches; rollators; crutches and tips therefor; electric massage apparatus for household use; health monitors comprising sensor that monitor the health of the elderly or disabled in their own homes; infrared thermometers for medical purposes; orthopedic walkers; portable hand-held urinals; sanitary masks for medical purposes; ultraviolet radiator units for therapeutic purposes; walkers for use by mobility-impaired individuals; walkers to aid in mobility; walking aids for medical purposes; wh...