Is connected to the installation expedient 110 to nursing bottle 11 the nipple chamber body there is a point of 120 which and papilla, 130 it can provide advanced open part 114 the papillar point 140 where and, it possesses, in the papillar point from the nipple chamber body it applies and the wall surface consists of the soft material, is inside the wall surface, possesses retention possible rigidity has the material which the form retention layer 150 which is formed the form of the wall surface in the inner layer which, is surface side of the wall surface outside in layer, in order due to tongue peristalsis, motion has the possible smooth surface the tongue this connection layer 160 whereAs it is formed, in center of form retention layer and tongue this connection layer, it possesses the material whose rigidity is lower than the material of form retention layer and tongue this connection layer, form retention layer and tongue this connection layer compared to the deformation absorption layer 170 where thickness is formed to large and, the artificial nipple 100 which it possesses.哺乳瓶11への取付手段110に連接された乳首胴部120と、乳頭部130の先端部にあり、先端開口部114が設けられた乳頭先端部140と、を有し、乳首胴部から乳頭先端部にかけての壁面は、柔軟な素材から成り、壁面の内側である内層には、壁面の形状を保持可能な剛性を有する素材を備える形状保持層150が形成され、壁面の表面側である外層には、舌による蠕動様運動が可能な平滑面を有する舌当接層160が形成され、形状保持層と舌当接層との中間には、形状保持層及び舌当接層の素材より剛性の低い素材を有すると共に、形状保持層及び舌当接層より厚みが大に形成される変形吸収層170と、を有する人工乳首100。
