Apparatus and instruments, namely, devices for detecting volatile compounds in the nature of chemically sensitive electric sensors and data processing apparatus for use with computers

Medical, surgical apparatus and instruments for use in ear, nose, and throat (ENT) and head and neck medical diagnosis and treatment and surgery; non-permanent implantable devices in the form of medical balloons and stents including stents in the nature of scaffolding for medical use; stents for medical use; surgical retractors for medical use; artificial implants, namely, implants composed of artificial materials