Patent ID: 7214214

Claim:
A sealing rubber closure and syringe/container system, the syringe/container of the system being specified by the International Organization of Standardization and having a Luer nozzle and a Luer lock, the sealing rubber closure and syringe/container system comprising: a Luer-lock-receiving part having a Luer-lock-receiving opening, an inner end portion opposite the Luer-lock-receiving opening, and an outer end portion adjacent to the Luer-lock-receiving opening, the outer end portion having a first area adjacent to the Luer-lock-receiving opening and a second area adjacent to the inner end portion of the Luer-lock-receiving part, wherein the first area has a tapered, substantially cylindrical sidewall having a greater degree of taper than a tapered, substantially cylindrical sidewall of the second area so that the tapered sidewall of the first area is maintained in close contact with an outer surface of a basal end of the Luer lock, and the tapered sidewall of the second area is maintained in direct contact with an outer end portion of a sidewall of the Luer lock.