Abstract: Device for external connection of the bloodstream of a patient to an external circuit or a fluid source for medical purposes. The device includes a main body with at least a first opening being surrounded by first sealing surface (-s) and being adapted to be protected by a removable protective member. A connecting member with at least one second opening being arranged to be protected by a protective body which is removable with respect to the connecting member. The connecting member is connectable to the main body under simultaneous removal of the protective member and the protective body in order to obtain leakproof connection between the openings. The main body is provided with holding elements forming a guide which is open in both ends for the protective member and the connecting member respectively. The invention also concerns a connecting unit for the connecting device.

Abstract: In a fluid conduit connecting device for medical purposes a housing and a connecting member, being connectable to the housing, carry cooperating sealing surfaces. For the purpose of protecting the sealing surfaces of the connecting member these surfaces are covered by protective surfaces of a protective member prior to the connection of the connecting member to the housing. Protective member is arranged to uncover the sealing surfaces when the connection into the housing takes place. The device is suitable particularly for connecting the blood stream of a patient to an external conduit and allows continuous arteriovenous hemofiltration.