Injection cannula, ECMO system

A cannula for injecting a fluid into a cavity of the human or animal body, comprising:

• a main lumen defining a first space of the cannula for the fluid to flow in a first direction;
• and
• an accessory reperfusion lumen defining a second space of the cannula and comprising:
• an inlet for collecting a portion of the fluid flowing in the first direction;
• an angled portion for changing the direction of flow of the fluid collected by the accessory reperfusion lumen;
• and
• an outlet for discharging the collected fluid in a second direction into the cavity;
• a stop configured to move along an auxiliary lumen so as to position the cannula in the cavity, the auxiliary lumen (LX) defining a third space of the cannula and comprising an outlet opening into the cavity;
• and
• a connector connected to the stop and extending along the auxiliary lumen,
• the stop being further configured to be deployed in the cavity, via the outlet of the auxiliary lumen, in order to ensure that the cannula is locked in position in the cavity,
• the outlet of the auxiliary lumen being arranged at a predetermined distance from the outlet of the accessory reperfusion lumen such that when the stop locks the cannula in position in the cavity, the outlet of the accessory reperfusion lumen is oriented in the cavity such that the collected fluid is discharged in the second direction,
• wherein the connector is configured to move the stop along the auxiliary lumen.