Suction Catheter

Abstract

An aspiration catheter (20) is provided, and belongs to the technical field of medical devices. The aspiration catheter (20) includes a catheter seat (200) and a catheter body (100) which are connected to each other. The catheter body (100) includes an aspiration tube (110) and a guidewire tube (120). An aspiration port (112) is provided in a distal end of the aspiration tube (110), and the aspiration port (112) is provided towards a side surface of the aspiration tube (110). The aspiration tube (110) includes a supporting unit (130) and a sealing unit (140) disposed on the supporting unit (130). The hardness of the supporting unit (130) and/or the sealing unit (140) gradually decreases from the proximal end to the distal end. A distal end of the catheter body (100) has low hardness, such that the catheter body (100) has good passability when passing through a curved blood vessel. A part which is in contact with an inner wall of the blood vessel of the distal end of the catheter body (100) is softer, causing less irritation to the inner wall of the blood vessel during pushing, and the part is less likely to cause secondary damage to the inner wall of the blood vessel.

Dependencies are inferred from the claim text.