Fluidic connector, comprising a connecting element and a mated connecting element, able to be coupled together according to a coupling axis (X-X, Y-Y), with the connecting element comprising: - a body delimiting a fluid flow channel in the connecting element, - a locking device suited for axially locking the body of the connecting element with a body of the mated element when the connector is in coupled configuration, and - a sealing ring, which, during the coupling and uncoupling of the connector, can be displaced in relation to the body of the connecting element between: - a closed-off position of the flow channel of the body of the connecting element when the connector is in uncoupled configuration, and - an open position wherein the fluid can flow in the connector, this sealing ring comprising a housing for receiving a coupling member wherein the coupling member is mobile between: - a first position, wherein the coupling member axially attaches the body of the connecting element with the sealing ring in closed-off position, and - a second position, wherein the coupling member axially attaches the body of the mated connecting element with the sealing ring in open position, - a blocking member which is suited for blocking the coupling member in its first position and for cooperating with the body of the mated connecting element, during the coupling of the connector, in order to authorise the passage of the coupling member from said first to said second position, this connector being characterised in that, during the coupling and uncoupling of the connector, the body of the connecting element is able to block the coupling member in said second position while the sealing ring is displaced, between the closed-off position and an open position wherein the locking device axially locks the body of the mated connecting element in relation to the body of the connecting element - a body delimiting a fluid flow channel in the connecting element, - a locking device suited for axially locking the body of the connecting element with a body of the mated element when the connector is in coupled configuration, and - a sealing ring, which, during the coupling and uncoupling of the connector, can be displaced in relation to the body of the connecting element between: - a closed-off position of the flow channel of the body of the connecting element when the connector is in uncoupled configuration, and - an open position wherein the fluid can flow in the connector, this sealing ring comprising a housing for receiving a coupling member wherein the coupling member is mobile between: - a first position, wherein the coupling member axially attaches the body of the connecting element with the sealing ring in closed-off position, and - a second position, wherein the coupling member axially attaches the body of the mated connecting element with the sealing ring in open position, - a closed-off position of the flow channel of the body of the connecting element when the connector is in uncoupled configuration, and - an open position wherein the fluid can flow in the connector, - a first position, wherein the coupling member axially attaches the body of the connecting element with the sealing ring in closed-off position, and - a second position, wherein the coupling member axially attaches the body of the mated connecting element with the sealing ring in open position, - a blocking member which is suited for blocking the coupling member in its first position and for cooperating with the body of the mated connecting element, during the coupling of the connector, in order to authorise the passage of the coupling member from said first to said second position, this connector being characterised in that, during the coupling and uncoupling of the connector, the body of the connecting element is able to block the coupling member in said second position while the sealing ring is displaced, between the closed-off position and an open position wherein the locking device axially locks the body of the mated connecting element in relation to the body of the connecting element