Self supporting endoscope for examination of human internal cavities has base part connected by thin catheter to external operating part, with catheter thin enough to pass through nasal cavity

摘要

Endoscope has a base part (10) connected via a narrow catheter (11) to an external detachable part (12) with power supply and viewing optics. The base part of the endoscope is thickened and can be manipulated in the normal manner. The catheter is sufficiently narrow that it can pass through the nasal cavity. To pass the catheter through the nasal cavity, he endoscope is inserted through the mouth and then the catheter re-routed via the nose using a guide tube that has been inserted through the nose and back out through the mouth.