| 摘要 |
An improved single use lancet unit with a movable safety sleeve for shielding the sharp contaminated tip of a used lancet including means for fixedly securing the sleeve in its protective position. The lancet unit includes a lancet having a rod-shaped body disposed at one end in a lancet retaining member and a sterile sharp tip at the other end. The lancet unit includes a movable sleeve with an axial passageway therethrough sized to receive the lancet body segment which extends beyond the retaining member coaxially therein. The sleeve is movable longitudinally from an initial position for use of the lancet unit wherein the sharp tip of the lancet projects beyond the sleeve to a protective position wherein the sleeve surroundingly encloses and shields the contaminated tip of the used lancet unit. The lancet unit further includes a coupling member and a receiving opening which matingly engage to fixedly secure the sleeve in its protective position. |
