Safety needle with collapsible sheath

摘要

A safety needle device includes a housing, a Huber needle, a cap and a sheath. The Huber needle has a first needle leg disposed in the housing and a second needle leg extending perpendicularly of the first needle leg. The cap is disposed over the second needle leg and is movable relative thereto from a first position with the second needle leg extending through the cap to a second position with a tip of the needle disposed in sealed relation in the cap. The sheath is concentrically disposed on and about the needle in a collapsed state, and secured to and between the housing and the cap. The sheath is extendable from the collapsed state to an extended state in response to movement of the cap from the first position to the second position.