Many types of medical treatments are not feasible without the use of medical endoscopes. These are indispensable for both diagnostic procedures, such as laryngoscopy, sinuscopy, or otoscopies, and actual surgeries of various types. In fact, medical endoscopes cover a wide spectrum of instruments based on distinct operating principles.
The most widely used medical endoscopes are rigid endoscopes of varying lengths, insertion tube diameters and fields of view (FOV). All rigid endoscopes share the same basic design - they feature a circular tube, with optical glass lenses at each end of the tube. As such, a rigid endoscope is a fairly simple device without any illumination or image enhancements. Therefore, endoscopic sets often include add-ons that amplify the functions of a rigid endoscope. These additional tools typically include a portable or standalone light source and an endoscopic camera. The latter is necessary if there exists a need to capture images during a diagnostic procedure or a surgery.