device for removing and extracting removable material, such as deposits from within hollow bodies, in particular for removing and extracting thrombi and emboli from blood vessels or the like, and reducing catheter
device for removing and extracting removable material such as deposits from within hollow bodies, in particular for removing and extracting thrombosis emboli from blood vessels or the like, reducing catheter, and method for aspirating, fragmenting and extracting removable material such as deposits from within The invention relates to a device and method for aspirating, fragmenting and extracting removable material from hollow bodies, in particular for aspirating, fragmenting and extracting thrombi and emboli from blood vessels. For this purpose, the wire guide (11) is inserted into the hollow body (1) through an opening. material is removed by means of a reducing catheter (3) having a working head (6) comprising a stator (8) and a rotor (9) where the rotor (9) is connected to a flexible feed screw (1) surrounding the wire guide (11). the stator (8) has a side inlet opening (8a) over the circumference. The inlet opening (8a) in the stator (8) is formed by two circular holes arranged axially in succession with respect to the longitudinal axis of the dissolution catheter (3). material is forced into the inlet openings (8a), and the aspirated and / or detached probes and plungers (2) are sheared and / or fragmented between the peripheral edges of the stator inlet openings (8a) and of the rotor (9). a flexible sleeve (7) surrounding the feed screw (1) and connected to the stator (8) is used to discharge ablated material, and / or detached probes and plunger fragments. Before inserting the reducing catheter (3), a sheath catheter (4) is inserted into the hollow body (1) until it is positioned in front of the material to be removed. The cross-section of the hollow body (1) is then at least partially obstructed by the sheath catheter (4), thus preventing detached probes or plunger fragments from being accidentally dragged.dispositivo para remover e extrair material removível, tais como depósitos de dentro de corpos ocos, em particular para remover e extrair trombose êmbolos
