| 摘要 |
A lancet device comprises a hollow housing defining a cavity and having a proximal end and a distal end. It also comprises a slider slidable at least partially within the cavity of the hollow housing along a longitudinal axis from an outward position to a pushed position. The slider extends outside of the cavity beyond the proximal end of the hollow housing when it is in the outward position. The lancet device also comprises a needle holder holding a lance. The needle holder is rotatable about and translatable along the longitudinal axis when moved from an initial position to an extended position. When the needle holder is in the initial position, the slider is in the outward position. When the needle holder is in the extended position, the lance extends outside of the cavity beyond the proximal end of the hollow housing. The sliding of the slider from the outward position to the pushed position urges the needle holder to the extended position. There is also a first biasing member positioned within the hollow housing at the distal end. The first biasing member exerts a biasing force against the needle holder toward the proximal end when the slider is moved to the pushed position. A second biasing member can be present in the lancet device. |
