Patent ID: 6840920
Filing Date: 2005-01-11
Classification: A61M

Abstract:
1. A butterfly needle device having a passive needle protection system comprising: an elongated needle having a proximal end and a distal tip, said needle defining an axis; a first winged element disposed over said needle; a second winged element positioned on said first winged element for rotation about said needle axis relative to said first winged element; a hollow needle guard disposed over said needle for reciprocal axial movement relative thereto; a means for biasing said needle guard distally relative to said needle; and a means for initially holding said needle guard in a proximal position relative to said needle wherein said distal tip of said needle is exposed and for releasing said needle guard to axially advance into a distal position to cover and protect said distal tip of said needle with said needle guard in response to a pre-selected rotational movement of said second winged element relative to said first winged element.