| 摘要 |
A medical device includes a hollow needle having a distal end and a proximal end, and a substantially flexible storage chamber for storing a medical preparation. The storage chamber is disposed spaced apart from the proximal end of the needle. The medical device further includes a needle shield, means operable to advance the storage chamber toward the proximal end of the needle and enabling fluid communication thereof with the medical preparation in the storage chamber, and means operable to decommission the needle substantially immediately using the needle shield after injecting the medical preparation with the needle.
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