Abstract: The present invention concerns an assembly for inserting a catheter into a body lumen, the assembly comprising a introduction, an elongate fixing element, wherein with its distal end the fixing element is securable to the introduction device, and wherein at the proximal end of the fixing element a clamping device is provided for securing a guide wire in relation to the introduction device. Further, the assembly comprises a catheter comprising means for releasably engaging the clamping unit, wherein by engagement of the means of the catheter with the clamping unit the guide wire is movable through the introduction device and wherein, upon disengagement of the means of the catheter from the clamping unit, the guide wire is non-movably secured relative to the introduction device.

Abstract: The present invention concerns an assembly for inserting a catheter into a body lumen, the assembly comprising a introduction, an elongate fixing element, wherein with its distal end the fixing element is securable to the introduction device, and wherein at the proximal end of the fixing element a clamping device is provided for securing a guide wire in relation to the introduction device. Further, the assembly comprises a catheter comprising means for releasably engaging the clamping unit, wherein by engagement of the means of the catheter with the clamping unit the guide wire is movable through the introduction device and wherein, upon disengagement of the means of the catheter from the clamping unit, the guide wire is non-movably secured relative to the introduction device.

Abstract: The present invention concerns a double-lumen catheter and a method for delivering or withdrawing fluids to/from a patient, in particular for use in hemodialysis. The double-lumen catheter comprises an elongated tubular body having a proximal end and distal end, with the distal end being positionable within a vessel of a patient, a divider wall extending along an interior of said tubular body and separating said interior into an intake lumen and a return lumen. The intake lumen and said return lumen each comprise an opening sloping toward the divider wall and toward the distal end of the tubular body, respectively, the openings.

Abstract: The present invention relates to a double lumen catheter tube having a substantially circular cross-section and comprising a catheter tube body having a longitudinal axis, and further comprising an outer tubular and an inner divider wall inside the catheter tube body dividing said catheter tube body into a first and a second lumen. The first and the second lumen each comprise a cross section having the shape of an isosceles triangle with three rounded vertices. The tubular wall comprises wall sections that have a smaller wall thickness.