| 摘要 |
<p>The needle assembly has a hub (3) with a needle (5) attached at one end and a tube (7) attached at the opposite end. The hub (3) has a pair of wings (3a), which can be taped to a patient to hold the needle in place. The needle and hub (5,3) are slidably enclosed in a guard (1) with the wings (3a) engaged in slots (1c) in the guard to facilitate extension or retraction of the needle. The guard has a locking member (1i,1h), which engages the wings to lock the needle in the fully retracted position. <IMAGE></p> |
