Patent ID: 7510686

Claim:
A specimen cylinder comprising: a cylinder segment having a circumferential inner wall; a syringe cone segment integrally formed with the cylinder segment so that the cylinder segment and the syringe cone segment form a one-piece element having a frangible structure forming a predetermined breaking point, wherein the one-piece element can be severed at the predetermined breaking point to separate said syringe cone segment from said cylinder segment, said syringe cone segment having an inner wall; and a filtering device held in said cylinder segment and sealed relative to said inner wall of said cylinder segment, said filtering device comprising a filter and a holder which holds the filter so that an axial end surface of the filter is covered by said syringe cone segment when said syringe cone segment is connected to said cylinder segment and said axial end surface projects axially beyond said holder and beyond said cylinder segment after said syringe cone segment is separated from said cylinder segment.