Surgical and medical devices, apparatus and instruments, namely, appliances, apparatus and instruments for use in the diagnosis and treatment of gastrointestinal, urinary, muscular and neurological ailments, namely, manometers for medical purposes, electromyographs, urine flow meters for medical purposes, air flow meters for medical purposes, medical apparatus and instruments for measuring pressures, impedance and conductance of the gastrointestinal tract, urine tract and human tissue, and EG...