MARKED INTRODUCER NEEDLE FOR ULTRASOUND GUIDED CENTRAL VENOUS CATHETERIZATION

摘要

The present Invention provides a device for ultrasound guided central venous cannulation. An introducer needle with indentations at 0.5 cm distance using a sterile scale is made. Each 0.5 cm is marked with single marking. Each one centimeter is marked as double marking. This marked introducer needle then provide a clear guide of the depth of the insertion. Introducer needle is used for locating the central vein in both static and real time ultrasound guided central venous cannulation. Intensivists currently use a completely unmarked approximately 6 cm long needle. Since in ultrasound, the tip of the needle is usually not distinctly visible, the chance of accidental mechanical complications (like pneumothorax or arterial puncture) continues to exist. Hence, when this needle is used in static or dynamic ultrasound technique, it will provide dual protection against any accidental punctures and thus further reduce existing mechanical complication rates of central venous cannulation.