PROBLEM TO BE SOLVED: To provide a hollow body for a medical container, which includes a breakable part provided in a tube and first and second stress-applying units provided so as to insert the breakable part therebetween, the hollow body having the extremely small possibility that an opening formed by breaking of the breakable part is closed again.SOLUTION: The hollow body 30 for a medical container includes: the tube 32 having a closed distal end the breakable part 36 provided at the distal end of the tube 32 and the first stress-applying unit 34 and second stress-applying unit 35, which are provided so as to insert the breakable part 36 therebetween and can be fixed to a soft bag. The breakable part has a starting end and a finish end at the proximal end of the first stress-applying unit, and has a plastically deformable part 37 which is formed between the starting end and the finish end of the breakable part, expands a space between the first stress-applying unit and the second stress-applying unit, plastically deforms after the breakage of the breakable part, and maintains a state where the space between the first stress-applying unit and the second stress-applying unit expands.COPYRIGHT: (C)2012,JPO&INPIT【課題】筒状部に設けられた破断可能部と、破断可能部を挟むように設けられた第1および第2の応力付与部を備える医療用容器用中空体であって、破断可能部の破断により形成された開口が、再び閉塞される可能性が極めて少ないものを提供する。【解決手段】医療用容器用中空体30は、先端部が閉塞した筒状部32と、筒状部32の先端部に設けられた破断可能部36と、破断可能部36を挟むように設けられるとともに軟質バッグに固着可能な第1の応力付与部34、第2の応力付与部35とを備える。破断可能部は、第1の応力付与部の基端部に始端および終端を有し、この始端および終端間に形成され、第1の応力付与部と第2の応力付与部間が拡がり、破断可能部の破断後に塑性変形し、第1の応力付与部と第2の応力付与部間が拡がった状態を維持する塑性変形可能部37を有する。【選択図】図15
