Lub raj muaj zog tracheal intubation tube muaj lub caij nplooj ntoos hlav uas muaj zog compression, txawm tias tus neeg mob lub cev hloov pauv, nws yuav tsis tawg lossis deform lub raj intubation.Feem ntau tsim nyog rau qee qhov kev phais mob tshwj xeeb, txoj haujlwm yooj yim lossis rov qab phais, tuaj yeem pab txhawb lub raj phab ntsa kom tsis txhob sib tw lossis deformed.