Katheter zur Bearbeitung und Entfernung von weichen oder harten Substanzen

NOVELTY - The catheter has a housing (3) with a flushing/drive channel (4) to take a fluid-powered micro-motor (2) working on the gerotor principle. At its body side, a rotating tool (1) is mounted to the motor shaft, and is driven by it. An inner rotor meshes with an outer wheel, assembled in a sleeve. The axis of the inner rotor is offset in parallel to the sleeve axis. The drive fluid passes in through an axial entry (2a) to the meshed wheels and on to an outlet (2b). USE - The catheter is for use in microsurgery in blood vessels and organs to remove hard and soft matter such as stones in the bladder, kidneys or the gall bladder. ADVANTAGE - The catheter has its own integrated miniature motor which prevents risk of contamination or leakage. DESCRIPTION OF DRAWING(S) - The drawing shows the catheter with a micro-motor, propeller tool, and venturi jets in the suction channel. Tool 1 Micro-motor 2 Fluid entry 2a Fluid outlet 2b Channel 4