A needle tip guard (10) for a medical device, in particular for an intravenous cathether assembly, the needle tip guard (10) comprising: a base portion (12) having a bore (14) extending along an axial direction A for receiving a needle (34) having a needle shaft (38) such that the needle (34) may extend through the bore (14) and move relative to the needle tip guard (10) from a spread- apart position in which the needle tip (36) is outside the needle tip guard (10) to a protective position in which the needle tip (36) is covered by the needle tip guard (10) first (16) and second jaw (18) extending from the distal side of the said base portion (12) generally in the axial direction A； each of the said first (16) and second jaws (18) having a head portion (20, 22) in the region of its free end, wherein the said first jaw (16) rests over the needle shaft in the spread-apart position: one or more locking means onto the outer surface of the needle tip guard (10) for securing the said needle tip guard (10) to the said medical device； and at least one resilent member or elastic element (26) integrally mounted onto the said jaws (16, 18) in a region between the said base portion (12) and the head portions (20, 22) such that said resilent member or elastic element (26) exerts an inward restoring force on the said jaws (16, 18) when the jaws are fully or partially spread apart by the said needle shaft (38).L'invention concerne un élément de protection (10) de pointe d'aiguille d'un dispositif médical, notamment d'un ensemble cathéter intraveineux, ledit élément de protection (10) comprenant: une partie base (12) présentant un trou (14) s'étendant dans une direction axiale A en vue de recevoir une aiguille (34) dotée d'une tige (38) de sorte que l'aiguille (34) puisse s'étendre dans le trou (14) et se déplacer, par rapport à l'élément de protection (10), d'une position écartée dans laquelle la pointe (36) de l'aiguille se trouve l'extérieur de l'élément de protection (10) à une
