#$%^&*AU2020201033A120200305.pdf#####ABSTRACT A syringe body (18) for a prefilled syringe (10) includes: a hollow body portion (24)； a proximal-end opening portion (26) provided at a proximal end portion of the body portion (24)； and a distal-end nozzle (28) provided at a distal end portion of the body portion (24). The body portion (24) is made of a cyclic olefin polymer or a cyclic olefin copolymer. The body portion (24) has a thick body portion (24b) accounting for 80% or more of the body portion (24) along an axial direction. A wall thickness (T) of the thick body portion (24b) is 2.23 to 2.40 mm.
