Safety winged needle device for use with fistulas

摘要: Shielded winged needled medical devices for use as part of fistula sets and which minimize accidental needlesticks the skin by an exposed contaminated needle are provided. The include a hollow inner tube body, sliding outer shield. has foward groove ratcheted rear on outside surface thereof, shoulder relatively large diameter forwardly adjacent front groove, ramp smaller than rearwardly groove. shield with first second ramps protrusion terminates ramp. sits in while device is being used eliminates inadvertent rotation permitting forced at any time between After use, may be slid forward relative to tube, overcoming resistance given engagement until slides up locks In this position, now-contaminated shielded, ramps, grooves, providing absolute lock not overcome manual force.