| 摘要 |
A catheter apparatus for intravenous applications, such as hemodialysis, which helps prevent needlesticks. The invention includes a hollow plunger to which a hollow needle is attached. A housing surrounds the plunger and contains a locking device so that when the plunger is retracted and the needle is pulled within the housing, the plunger becomes locked into place, thus encasing and securing the needle. A standard IV tubing line is attached to the apparatus, the introducing needle inserted so that the catheter is placed in position, and then the introducing needle is withdrawn and locked in place without the need for the operator having to break the system. Once the needle is locked into position, medical personnel are protected from a needlestick as the entire needle is within the apparatus.
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