摘要 |
Described is a needle safety device (1) comprising a needle hub (1.2) including an axial stem (1.2.4) having one or more grooves (1.2.5), a needle (1.3) having a distal tip (1.3.1), a needle shield (1.1 ) telescopically coupled to the needle hub (1.2) and including a first aperture (1.1.2) for allowing the needle (1.3) to pass through, and an inner sleeve (1.4) rotatably coupled to the needle shield (1.1) and including a second aperture (1.4.2) for allowing the needle (1.3) to pass through. The inner sleeve (1.4) includes one or more resilient arms (1.4.3) adapted to engage the groove (1.2.5). In a first axial position (PA1) and a first angular position (P1), the needle shield (1.1 ) covers the distal tip (1.3.1) of the needle (1.3) and the first aperture (1.1.2) is aligned with the second aperture (1.4.2). In a second axial position (PA2), the distal tip (1.3.1 ) of the needle (1.3) is through the first aperture (1.1.2) and the second aperture (1.4.2) and extends distally beyond the needle shield (1.1). In a third axial position (PA3) and a second angular position (P1), the needle shield (1.1) covers the distal tip (1.3.1) of the needle (1.3) and the first aperture (1.1.2) is not aligned with the second aperture (1.4.2). |