A male fluidic connecting element, comprising: - a tubular body, which defines a central axis and a distal mouth (102.1), and - a tubular plug for passage of the fluid, which is positioned coaxially inside the body and which includes a flange, characterized in that it further comprises: - a sleeve, which is axially movable around the plug between a first position (Fig. 1; Fig. 11), where it is away from the flange and a second position (Fig. 5; Fig. 12), where it is close to the flange or in abutment against the flange, - a member for controlling the displacement of the sleeve from its first to its second position, and - a device for locking the control member, including: - a first portion (106; 105a) able to slide inside the body around the tubular plug between a distal position of the first portion (Fig. 2), where it prevents maneuvering of the control member, and a proximal position of the first portion (Fig.4), where it does not oppose any maneuvering of the control member for displacing the sleeve from its first to its second position, and - a second portion (114; 105b), which is able to slide inside the body around the tubular plug between a distal position of the second portion and a proximal position of the second portion, which is able to drive the first portion (106; 105a) of the device from its distal position to its proximal position and which has an end (114b; S105b) accessible to the mouth (102.1) of the body. - a tubular body, which defines a central axis and a distal mouth (102.1), and - a tubular plug for passage of the fluid, which is positioned coaxially inside the body and which includes a flange, - a sleeve, which is axially movable around the plug between a first position (Fig. 1; Fig. 11), where it is away from the flange and a second position (Fig. 5; Fig. 12), where it is close to the flange or in abutment against the flange, - a member for controlling the displacement of the sleeve from its first to its second position, and - a device for locking the control member, including: - a first portion (106; 105a) able to slide inside the body around the tubular plug between a distal position of the first portion (Fig. 2), where it prevents maneuvering of the control member, and a proximal position of the first portion (Fig.4), where it does not oppose any maneuvering of the control member for displacing the sleeve from its first to its second position, and - a second portion (114; 105b), which is able to slide inside the body around the tubular plug between a distal position of the second portion and a proximal position of the second portion, which is able to drive the first portion (106; 105a) of the device from its distal position to its proximal position and which has an end (114b; S105b) accessible to the mouth (102.1) of the body. - a first portion (106; 105a) able to slide inside the body around the tubular plug between a distal position of the first portion (Fig. 2), where it prevents maneuvering of the control member, and a proximal position of the first portion (Fig.4), where it does not oppose any maneuvering of the control member for displacing the sleeve from its first to its second position, and - a second portion (114; 105b), which is able to slide inside the body around the tubular plug between a distal position of the second portion and a proximal position of the second portion, which is able to drive the first portion (106; 105a) of the device from its distal position to its proximal position and which has an end (114b; S105b) accessible to the mouth (102.1) of the body.