IV CATHETER DEVICE

原文（中国語）

An IV catheter device includes a needle component having an elongated needle with a sharp distal tip and a hollow needle hub that defines a flash chamber. The device includes a catheter component having a hollow body through which the needle passes and an actuatable obturator that is disposed within the hollow needle hub and moves between a pre-deployment position and a deployed position. In both the pre-deployment position and the deployed position, the actuatable obturator is disposed within an inner lumen of the elongated needle. In the deployed position, a blunt distal end of the obturator blunts the elongated needle. The actuatable obturator is biased by a biasing element that releases stored energy as the actuatable obturator moves from the pre-deployment position to the deployed position. The biasing element is disposed within the hollow needle hub within the flash chamber. The actuatable obturator is hollow and has an inner lumen formed therein that is open at proximal and distal ends of the obturator, with the inner lumen at the proximal end of the obturator being open to an area of the flash chamber that contains the biasing element.