Abstract: A syringe assembly includes a plate-shaped seal member that seals a distal opening of a distal nozzle portion of a syringe; and a tubular cover member. The cover member has a base portion and a mounting portion. The mounting portion has two claw portions, two first column portions arranged on both sides of one of the two claw portions, and two second column portions arranged on both sides of the other of the two claw portions. An outer peripheral portion of the mounting portion has two outer peripheral notch portions. An inner peripheral portion of the mounting portion has two inner peripheral recessed portions.

Abstract: A syringe assembly has a body section including a lumen fillable with 0.3 to 1 mL of drug solution. The total length of the syringe assembly is 30 to 40 mm. The body section has an inner diameter of 8.0 to 9.0 mm and an outer diameter of 10 to 12 mm. The ratio of the outer diameter of the body section and the total length of the syringe assembly is 1:2.5 to 1:4. A flange portion includes two major diameter forming portions that are symmetrically provided with an axis of the body section interposed therebetween to form a major diameter of the syringe assembly. A minor diameter of the syringe assembly is 10 to 13 mm and is equal to or larger than the outer diameter of the body section. The major diameter is 12 to 15 mm and is larger than the minor diameter.

Abstract: A syringe assembly includes a plate-shaped seal member that seals a distal opening of a distal nozzle portion of a syringe; and a tubular cover member. The cover member has a base portion and a mounting portion. The mounting portion has two claw portions, two first column portions arranged on both sides of one of the two claw portions, and two second column portions arranged on both sides of the other of the two claw portions. An outer peripheral portion of the mounting portion has two outer peripheral notch portions. An inner peripheral portion of the mounting portion has two inner peripheral recessed portions.