Coupling device for a tube

A coupling device for coupling with a tube, comprising at least one pressure element for exerting a clamping force on the tube, wherein the same is provided with at least one sealing organ embodied as a sealing element, wherein, at the side facing away from the tube, the said at least one pressure element is embodied with surfaces that converge towards each other in a radial orientation away from the tube, and that further support elements are provided that are designed to be coupled to each other and are designed to be placed directly or indirectly against said surfaces of the at least one pressure element so as to provide the clamping force on the tube, which at least one pressure element is embodied in segments and to this end comprises at least a first pressure element segment and a second pressure element segment, wherein the first pressure element segment is placed proximally and the second pressure element segment distally with respect to the tube, and wherein the first and the second pressure element segments are provided with contact surfaces placed to abut to, and co-operate with each other at a predetermined incline in relation to the longitudinal axis of the tube, wherein the incline of the contact surfaces is designed such that during tension strain between the coupling and the tube, the first pressure element segment is caused to clamp the tube more tightly, and furthermore that the second pressure element segment endows an increased force on the support elements, wherein the said at least one pressure element is one of a series of correspondingly embodied neighboring pressure elements, wherein each pressure element of said series comprises a first pressure element segment and a second pressure element segment, and wherein the first pressure element segment is placed proximally and the second pressure element segment distally with respect to the tube, and that of each pressure element the first pressure element segment is provided with a projection extending transversely to the longitudinal direction of the tube, and that said projection extends into a slit that is provided in a directly neighboring second pressure element segment that forms part of a neighboring pressure element.