| 摘要 |
A needle comprises hub 6 and cannula 4, the hub defining a cavity in fluid communication with a lumen of the needle cannula. Hub 6 comprises plural, first and second, openings 32, 33 connected alternatively with the cavity via valve 30. The openings may provide an end port 10 and angled (e.g. 45 degree) side port 12, with Luer type connection fittings. Either opening may comprise a valve seat; valve 30 can be a flexible, living hinge, or rigid element with flexible peripheral seal. The needle may be a spinal needle (pencil point or lancet) with diameter not greater than 24G and not less than 33G, for example for anaesthesia injection into the cerebro-spinal fluid (CSF). A syringe may be removably connected to side port by a fitting or via a flexible conduit. The device may form part of a kit, along with an introducer needle. |
