| 摘要 |
Catheter for the aspiration, fragmentation and removal of removable material from hollow bodies, in particular of thrombi and emboli from human blood vessels, comprising a working head (11) which is displaceable along a guide wire (6) independently thereof and is arranged at the distal end of the catheter and which has at least one lateral opening (14), the catheter (10) having a flexible transport screw (13) which can be rotated by means of a rotary drive (2) of a drive unit (1), which rotary drive is a distance away from the working head (11), and comprising a flexible tube (12) surrounding the transport screw (13), connected to the working head (11) and intended for removing the detached thrombi and emboli fragments, and a cutting tool, the transport screw (13) being in the form of a shearing cutting tool cooperating with the opening (14) of the working head (11), in order to comminute the detached thrombi and emboli between the peripheral borders (13a) of the transport screw (13) and borders of the openings (14).
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