| 摘要 |
DISCLOSURE OF INVENTION TITLE: Needle-Mounted Needle Guard for Intravenous Catheters An automatic needle guard for intravenous catheter assemblies, which stores on the insertion needle between the needle base and catheter hub, which attaches by positive engagement to the catheter hub, remains attached while the needle is withdrawn through the needle guard following insertion of the catheter, locks immovably to the needle shaft when the needle tip enters the body of the needle guard, then releases from the catheter hub, allowing the needle guard to be withdrawn along with the needle for safe disposal.
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