Provide a kind of for partly providing the aseptic medical connector being connected with being intended for single use between part being used for multiple times of fluid delivery system.This medical connector includes: fluid inlet ports, and this fluid inlet ports is configured as engaging removedly to set up with it and fluidly connecting with the connectivity port that disposable type external member (MUDS) is used for multiple times;And waste liquid outlet port, this waste liquid outlet port is configured as the waste liquid inlet ports with this MUDS and engages removedly to set up with it and fluidly connecting.Patient Fluids pipeline is connected in this fluid inlet ports at first end, and is connected at the second end on this waste liquid outlet port.Fluid through this Patient Fluids pipeline flows unidirectional to this second end from this first end.Patient Fluids pipeline is configured as disconnecting with this waste liquid outlet port, in order to fluid is delivered to patient.Additionally provide a kind of multi-fluid delivery system with this medical connector and this MUDS.
