Abstract: An aspiration catheter arrangement for aspiration of thrombi and emboli from blood vessels has a central catheter (2) and an outside catheter (1) surrounding it coaxially. A guide wire (4) and a dilator (3) are provided for inserting the catheter arrangement into a vessel and for dilating same. A blood clot is removed by means of a vacuum applied to the central catheter (2). If the central catheter (2) becomes clogged by the blood clot during the aspiration procedure, the central catheter (2) can be extracted out of the outside catheter (1) and replaced by a new central catheter (2). This new central catheter (2) can be connected to the aspiration device and the process is then continued. Instead of inserting a new central catheter (2), the aspiration process can also be continued through the outside catheter (1) by connecting the latter to the aspiration device after removing the central catheter (2).

Abstract: An aspiration catheter arrangement for aspiration of thrombi and emboli from blood vessels has a central catheter (2) and an outside catheter (1) surrounding it coaxially. A guide wire (4) and a dilator (3) are provided for inserting the catheter arrangement into a vessel and for dilating same. A blood clot is removed by means of a vacuum applied to the central catheter (2). If the central catheter (2) becomes clogged by the blood clot during the aspiration procedure, the central catheter (2) can be extracted out of the outside catheter (1) and replaced by a new central catheter (2). This new central catheter (2) can be connected to the aspiration device and the process is then continued. Instead of inserting a new central catheter (2), the aspiration process can also be continued through the outside catheter (1) by connecting the latter to the aspiration device after removing the central catheter (2).

Abstract: An x-ray examination installation includes an imaging system having components disposed on opposite sides of a patient on a patient support table. Positioning of the imaging system is coordinated with positioning of the patient support system in that the components of the imaging system are automatically moved, upon positioning of the patient support system, in a direction opposite to the movement of the patient support table. The range of adjustment of the patient support table can be sub-divided into ranges to which separate switching stages are allocated, so that the movement of the imaging system in a direction opposite to movement of the patient support table occurs only within predetermined ranges, so that such movement is not effected when the patient support table is adjusted within a central range.

Abstract: In a steerable, flexible, torsionally-stable guide wire for medical catheters which is surrounded at its distal end region by a helically wound spring which protrudes beyond the end of the guide wire, an improved atraumatic guidance of the guide wire within particularly narrow passages is obtained in the manner that the guide wire is a continuously hollow metal tube (2) the outside diameter of the metal tube (2) is about 0.1 to 1.0 mm and preferably 0.2 to 0.5 mm at least in the distal end region (3), and at least the distal end region (3) of the metal tube (2) is cylindrical. In this way it is possible to apply contrast agent or therapeutic agent to the tip of the guide wire and advance it in this way under fluoroscopic control.