In order to normalize the distribution of exudates and air between the nasal cavity side and the tympanic side by interposed ear canal of a patient, comprising: a prosthetic ear canal fully embedded, into the nasal side of the intratympanic exudate artificial ear canal with increased excretion efficiency is disclosed. In a state that has tip, the lumen and the rear end, tighten face a tip to cartilaginous portion Eustachian tube through the eustachian tube isthmus from the bone part Eustachian tube side, is sandwiched in the ear canal isthmus, the artificial ear tube, patient An artificial ear canal to keep interposed ear canal of, at a site to be clamped to the ear canal isthmus at least, the outer peripheral surface, and includes dispersed around the outer periphery a plurality of protrusions, the artificial ear at the tip closer than this and the sites of the tube and / or are open to outside the lumen through the distal end side at least one opening, at the rear than the sites, the lumen is the rear opening of at least one and is characterized in that it is open to the outside through.患者の耳管内に挿置して鼓室側と鼻腔側との間の空気及び滲出液の流通を正常化させるための、完全埋め込み可能な人工耳管であって、鼓室内滲出液の鼻腔側への排泄効率を高めた人工耳管が開示されている。当該人工耳管は、先端、後端及び管腔を有し、骨部耳管側から耳管峡部を通して軟骨部耳管に該先端を臨ましめ、耳管峡部に挟持された状態で、患者の耳管内に挿置しておくための人工耳管であって、少なくとも耳管峡部に挟持させる部位において、外周面に、複数の突出部を外周回りに分散させて備えており、該人工耳管の該部位及び/又はこれより先端寄りにおいて、該管腔が少なくとも1個の先端側開口を介して外部に開いており、該部位より後方において、該管腔が少なくとも1個の後方開口を介して外部に開いていることを特徴とする。
