| 摘要 |
Needle-bearing medical devices (10, 100, 200, 300, 400) are provided for flu id infusion, fluid transfusion, and inserting a guide wire. After use the needl e (65, 165, 265, 365) is shielded to render the contaminated needle safe to prevent inadvertent needle sticks. The device includes a housing (20, 120, 220, 320, 420) and a needle having a sharpened tip. A biasing element (60, 160, 260, 360, 460) biases the needle (65, 165, 26, 365, 465) toward a position in which the sharpened tip is shielded. |
