Flow regulating device, fluid infusion apparatus, and manufacturing method therefor

A flow regulating device (1) used in a fluid infusion apparatus used for administering a medicament to a patient, the flow infusion apparatus having the flow regulating device (1) and used for administering the medicament to the patient, and a manufacturing method for the device and the apparatus. The flow regulating device (1) comprises: multiple fluid channels (11) used for delivering a fluid, an inlet pipe (12) in communication with inlets of the multiple flow channels (11), an outlet pipe (13) for outputting the fluid in the multiple fluid channels (11), and a flow selecting mechanism (14) between the inlet channel (12) and the outlet channel (13) of the multiple flow channels (11). The flow regulating device (1) comprises: multiple fluid channels (11) used for delivering a fluid, an inlet pipe (12) in communication with inlets of the multiple flow channels (11), an outlet pipe (13) for outputting the fluid in the multiple fluid channels (11), and a flow selecting mechanism (14) between the inlet channel (12) and the outlet channel (13) of the multiple flow channels (11). The flow rate selecting mechanism (14) is configured to select some of the fluid channels (11) among the multiple flow channels (11) to be in communication with the outlet pipe (13). By means of the flow rate regulating device (1), the fluid infusion apparatus, and the method therefor, selection of the flow rate of the fluid channels is allowed, thus acquiring different flow rates.