A catheter mounting arrangement (10, 80) for mounting a catheter to a patient, said catheter mounting arrangement (10, 80) including: a main housing unit (12, 81) configurable to be fastenable around a catheter that has been inserted into a fluid cavity within a patient; said main housing unit (12, 81) including a slot (14, 90), wherein said slot (14, 90) defines a longitudinal opening within the main housing unit (12, 81) through which an uninserted section of tubing of the inserted catheter is passable there through said slot (14, 90); said main housing unit (12, 81) and inserted catheter including an engagement arrangement, wherein the engagement arrangement is configured so that once the uninserted section of the tubing of the inserted catheter has passed through the slot (14, 90) of the main housing unit (12, 81) the engagement arrangement provides for a fixed vertical support of the catheter within the main housing unit (12, 81) so that the uninserted section of tubing of the inserted catheter remains substantially upright and/or substantially free of kinks or bends, wherein the engagement arrangement between the main housing unit (12, 81) and the catheter includes a longitudinal intermediate piece (20, 83), the main housing unit (12, 81) including a hollow channel or receptacle in which the longitudinal intermediate piece (20, 83) is adapted to be nested therein, characterized in that the intermediate piece (20, 83) is a longitudinal rod or column including a vertical slot (21, 92) along its longitudinal length, which when nested within the hollow channel or receptacle of the main housing unit (12, 81), is rotatable or positioned so said vertical slot (21, 92) is alignable with the slot (14, 90) that defines the longitudinal opening within the main housing unit (12, 81) through which the uninserted section of tubing of the inserted catheter is passable there through, the longitudinal intermediate piece (20, 83) including an external threaded configuration (22, 89). a main housing unit (12, 81) configurable to be fastenable around a catheter that has been inserted into a fluid cavity within a patient; said main housing unit (12, 81) including a slot (14, 90), wherein said slot (14, 90) defines a longitudinal opening within the main housing unit (12, 81) through which an uninserted section of tubing of the inserted catheter is passable there through said slot (14, 90); said main housing unit (12, 81) and inserted catheter including an engagement arrangement, wherein the engagement arrangement is configured so that once the uninserted section of the tubing of the inserted catheter has passed through the slot (14, 90) of the main housing unit (12, 81) the engagement arrangement provides for a fixed vertical support of the catheter within the main housing unit (12, 81) so that the uninserted section of tubing of the inserted catheter remains substantially upright and/or substantially free of kinks or bends, wherein the engagement arrangement between the main housing unit (12, 81) and the catheter includes a longitudinal intermediate piece (20, 83), the main housing unit (12, 81) including a hollow channel or receptacle in which the longitudinal intermediate piece (20, 83) is adapted to be nested therein, characterized in that the intermediate piece (20, 83) is a longitudinal rod or column including a vertical slot (21, 92) along its longitudinal length, which when nested within the hollow channel or receptacle of the main housing unit (12, 81), is rotatable or positioned so said vertical slot (21, 92) is alignable with the slot (14, 90) that defines the longitudinal opening within the main housing unit (12, 81) through which the uninserted section of tubing of the inserted catheter is passable there through, the longitudinal intermediate piece (20, 83) including an external threaded configuration (22, 89).