| 摘要 |
The present invention provides a liquid co-infusion device (A) having a plurality of connection ports (12, 13, 14), the device including an operating part (20) axially movable within a chamber (11) of the device so as to selectively isolate one of said connection ports from said chamber. An end of the operating part may include a groove (21a) or through channel movable to cause such isolation. Preferably, the axial movement of said operating part is guided so as to include a axial movement stop.
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