| 摘要 |
A glass safety tube with an encapsulating protective safety barrier that contains the glass tube and its contents if the glass tube is fractured. The glass tube has a length L 1 , an elongate tubular central portion with a diameter D and a length L 2 , which is less than L 1 , an open end, and, a closed end portion integrally formed with the central portion and axially extending a distance L 3 from the central portion. A first safety barrier envelops the central portion of the glass tube. A second safety barrier envelops the closed end portion of the glass tube.
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