Bougie

摘要

A bougie or guide catheter possessing an obturated tip 6 adjacent the distal end which is non-traumatising to nasal or pharyngeal tissues, connection means 2 at the proximal end for connection to a device e.g. a syringe, a cap or a CO2 meter and a lumen 3 through the majority of its length into which is inserted a hollow stiffening element. A further bougie has a proximal region which cannot coil up in register with the lumen. The catheters tip may possess one or more apertures 5 connecting the lumen to the exterior and the internal rigid stiffening tube 23 may terminate before the tip and be made from malleable material. A method of determining whether the bougie is in the oesophagus or trachea by monitoring carbon dioxide output is disclosed. It assists in placing an endotracheal tube.