| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a medical rubber stopper capable of preventing the adhesion with the shelf plate in a freeze-drying storehouse at the time of full plugging. SOLUTION: The medical rubber stopper 1 is equipped with the leg part 4 fitted in the opening 3 of a vial 2, the flange part 5 coming into contact with the upper edge 3a of the mouth of the vial 4 and a top surface part 6 having projections 10 and 10a to 10d for preventing adhesion, and the projections 10 and 10a to 10d for preventing adhesion are formed into a multistage structure. Four to twelve projections 10 and 10a to 10d are arranged on the top surface part 6.</p> |
