Catheter insertion system and catheter placement system

The utility model discloses a catheter insertion system and a catheter placement system. The catheter insertion system includes a catheter defining a catheter lumen and extending along a longitudinal axis; a needle defining a needle lumen and disposed within a portion of the catheter lumen; a housing supporting one of the catheter or the needle; and a blood return indicator in fluid communication with the needle lumen, the blood return indicator including a plunger fixedly attached to the housing and including a syringe barrel slidably engaged with the plunger along a longitudinal axis. 本申请公开了导管插入系统和导管放置系统。该导管插入系统包括：导管，其限定了导管内腔并且沿着纵向轴线延伸；针，其限定了针内腔并且布置在导管内腔的一部分内；壳体，其支撑导管或针中的一个；和回血指示器，其与针内腔流体连通，回血指示器包括固定地附接至壳体的柱塞并包括沿着纵向轴线与柱塞可滑动地接合的注射器筒体。