| http://www.w3.org/ns/prov#value | - Referring first to FIG. 1, the present invention is a catheter and insertion needle assembly 10 that generally comprises four main components, all of which are discussed in detail below: a catheter 14, an insertion needle 26, shielding means 32 for shielding the tip of the needle, and locking means for locking the needle within the shielding means, which in the preferred embodiment comprises a rig
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