| 摘要 |
A fluid sampling apparatus including an elongate housing, a needle mount slidingly mounted in the elongate housing, a double-pointed needle adapted for flow of fluid therethrough, the needle being fixedly mounted in the needle mount with a proximal point extending proximally outwards of the needle mount and a distal point extending distally outwards of the needle mount, a seal plug mounted in the distal portion of the housing, the seal plug being aligned with the needle such that the distal point can pierce through the seal plug into a puncturable conduit and a biasing device positioned between the seal plug and a distal face of the needle mount and a flexible ring mounted in the housing operative to reversibly grip a head of a vacuum tube inserted through a proximal end of the housing. |
