Safety needle assembly and methods

摘要

The safety needle assembly includes a body and a wing assembly secured to the body. A grip is slidable along the exterior of the body, and a needle holder is slidable through an interior passageway in the body. The grip slides independently of the wing assembly, which is not slidable with respect to the body. The grip and the needle holder are secured to one another, so that sliding movement of the grip induces sliding movement of the needle holder. The grip and the needle holder are slidable between a distal position, in which a sharp distal tip of a needle held in the needle holder is exposed, and a proximal position, in which the sharp distal tip is not exposed.

主权项

1. A safety needle assembly, comprising:
an elongate body including a body wall defining an internal passageway and having an exterior; a grip part having an internal passageway slidable along the exterior of the body between a needle exposed position and a needle covered position; an elongate needle holder disposed within the internal passageway of the elongate body and removeably secured to the grip part, such that sliding movement of the grip part induces sliding movement of the needle holder within the internal passageway; a needle comprising a needle tip extending distally from the needle holder and slidable with the needle holder within the internal passageway of the elongate body; a wing assembly secured to a distal end of the elongate body, the wing assembly including first and second wings extending laterally in opposite directions and a fixed distal end opening defining a cover end for covering the needle tip in the needle covered position; wherein the grip part is slidable along the exterior of the body independently of the wing assembly; and wherein the safety needle assembly is without a biasing spring such that movement of the needle tip inside the cover end of the wing assembly is without any biasing spring force.