Rubber stopper for medicine container, medicine container with medicine and medicine container set

摘要

The drug container rubber stopper 1 is used for a drug container 2 having a main body portion and a neck portion having a smaller diameter than that of the main body portion. The rubber plug 1 includes a main body portion 3 and an in-container entry portion 4 that extends downward from the main body portion 3 and can be fitted into the opening of the container 2. When the container 2 is attached to the container 2, the container entrance part has an outer surface part 40 that contacts the inner surface of the neck part of the container, and a columnar gap part 45 that extends in substantially the same shape downward from the center part of the lower surface of the main body part 3. And an inclined surface 61, 62 extending obliquely downward from the lower end of the upper inner surface portion toward the outer surface portion 40 of the in-container entry portion 4. The upper end portion 48 of the outer surface portion contacts the inner surface of the neck portion of the container in an annular and liquid-tight manner, and the lower end of the inclined surface reaches or is close to the outer surface portion of the in-container entry portion.