Artificial tympanic membranes; prosthetic and filling materials, not for dental use, namely, artificial materials for use in the replacement of bone; facial aesthetic treatment apparatus using ultrasonic waves for commercial use; electric esthetic massage apparatus for commercial use; medical apparatus and instruments, namely, orthopedic apparatus and instruments; surgical apparatus and instruments; catheters; stents; artificial vascular grafts; prosthetic tissues for vascular use; artificial...