| 摘要 |
The present invention relates to a needle protection device (2) for a hypodermic syringe (1) where the syringe (1) includes a container (10), a plunger (12) which can be moved reciprocatingly in the container by a rod (11), and a needle (14) which is fixed to or fastenable to one end-part of the container. An end-part (2a) of the device (2) that lies distal from the container is provided with a membrane (2b) which sealingly closes the crosssectional area of a tubular member. The membrane (2b) has a thickness which allows the point (14a) of the needle (14) to penetrate the membrane (2) when the tubular member (2') is moved along the container (10) to expose the needle (14). The membrane (2b) is positioned to cover the cross-sectional area of the tubular member at an adapted distance "a" from the end-edge or end-surface (2a') of said tubular member, therewith protecting the membrane from externally acting forces.
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