High flux threaded needle.

摘要: The present invention is a needle for injecting or removing liquid from body comprising trocar (14) having sharpened end and being disposed in cannula (16), with the (18) extending past of cannula, threads (22) on its to facilitate insertion. removable cannula. In use, after punches hole skin blood vessel, screwed therein. then removed inside expose large cross-section thereby permitting rapid flow fluid through another embodiment, comprises conically shaped around outside thereof insertion into body. yet substantially cylindrically has threaded exterior.