| 摘要 |
Fluid sampling apparatus (10) including an elongate housing (14), a needle mount (38) slidingly mounted in the elongate housing (14), and a double-pointed needle (48) adapted for flow of fluid therethrough, the needle (48) being fixedly mounted in the needle mount (38) with a proximal point (50) extending proximally outwards of the needle mount (38) and a distal point (52) extending distally outwards of the needle mount (38), characterized by a seal plug (54) mounted in the distal portion of the housing (14), the seal plug (54) being aligned with the needle (48) such that the distal point (52) can pierce through the seal plug (54) into a puncturable conduit (12), and a biasing device (56) positioned between the seal plug (54) and a distal face (58) of the needle mount (38), the biasing device (56) having a first position wherein the distal face (58) of the needle mount (38) is spaced from the seal plug (54) and the distal point (52) of the needle (48) does not distally protrude through the seal plug (54), and the biasing device (56) having a second position wherein the needle mount (38) is slid distally and the distal point (52) distally protrudes through the seal plug (54) and can pierce a puncturable conduit (12). |
