| 摘要 |
This document discusses, among other things, systems, devices, and methods that include a hollow-tube stylet shaped and sized for insertion into a flexible infusion catheter for use as a guiding stylet during insertion of the stylet and catheter toward a subject. Fluid is loaded into the hollow tube stylet, and released upon withdrawal of the stylet from the infusion catheter. This avoids air from occupying the infusion catheter upon withdrawal of the stylet, which could disturb the infusion of the agent.
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