NASAL CAVITY INSERTION DEVICE

摘要

It is an object of the present invention to provide a nasal cavity insertion device whereby the pharynx can be expanded, it takes less time to set the device, and further, a user is not forced to take time and effort of an operation. A nasal cavity insertion device (100) includes a tubular main body part (110), at least an elastically deforming part (120) disposed on the outer peripheral surface of the tubular main body part (110), and a water soluble holding part (130). Further, the water soluble holding part (130) holds the elastically deforming part (120) in a diameter reduced state.