| 摘要 |
The present invention relates to intravenous catheter insertion devices which employ a sharp needle (12) to introduce and emplace an intravenous catheter into a body vessel of a patient. The sharp needle end (17) is positioned to extend from within the catheter such that the needle (12) and catheter can be introduced into the body vessel which is pierced by the sharp needle. Following use of the present intravenous catheter insertion device to introduce and emplace an intravenous catheter into a patient's body vessel, the needle (12) is withdrawn from within the catheter and the device is separated from the catheter such that only the catheter remains within the body vessel. The safety intravenous catheter insertion device of the present invention comprises a self-contained coupling means for preventing separation of the catheter from the device until the needle (12) is substantially transposed into a safety receptacle (14) to thereby permit the used needle to be safely handled and discarded.
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