| 摘要 |
A catheter insertion needle assembly including a generally elongated body, a slider assembly, and a needle housing with a needle. The elongated body has a proximal end and a distal end, a needle guard disposed at the distal end of the body in a needle guard plane, a first or distal locking member, and a second or proximal locking member. The slider assembly includes a slider that is slidably disposed on the body. Needle has a distal tip and a cannulating portion extending therethrough. A first locking tab is releasably engageable with the first locking member and a second locking portion is lockably engageable with the second locking member. The first locking tab is releasable from the first locking member to allow the slider to slide between a distal position relative to the body wherein the tip extends distally of the needle guard an d a proximal position relative to the body wherein the tip is disposed within the needle guard plane. When the slider is disposed at the proximal position, the second locking portion engages the second locking member to preclude the slider from sliding distally relative to the body.
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