| 摘要 |
Provided is a universal plug which can be used to close various size containers such as those used in health care for collecting and handling fluids, such as human blood. The universal plug comprises three stepped posts (1, 2, 3) each of which comprises at least one ring (9, 10, 11, 12, 13, 14, or 15) for sealing the internal surface of the container. Venting is accomplished by making a small non-sealing hole which allows for pressure flow from internal to external and external to internal. This hole is sized to prevent samples from leaking or moisture from entering.
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