Intravascular thrombus suction catheter device and mesh basket assembly thereof

Abstract

The invention discloses an intravascular thrombus suction catheter device and a mesh basket assembly thereof, and belongs to the field of vascular intervention medical treatment. The device comprisesa three-way connecting base, a catheter, a connecting base and a conveying sheath tube, and further comprises an expandable guide head end and a self-expansion mesh basket assembly. The self-expansionmesh basket assembly consists of a mesh basket conveying pipe, a hammer-like guide cap, a mesh basket supporting pipe and a self-expansion mesh basket, wherein the mesh basket conveying pipe is inserted into the catheter, the hollow hammer-like guide cap is arranged at the far end of the mesh basket conveying pipe, the mesh basket supporting pipe is inserted into the mesh basket conveying pipe, and the self-expansion mesh basket is fixed to the far end of the mesh basket supporting pipe. The hammer-like guide cap serving as a thrombus breaking separator is arranged at the suction opening in the head end of the far side of the catheter and used for breaking and separating thrombus blocked at the suction opening of the suction catheter; and the self-expanding mesh basket is arranged at thefar end of the lesion thrombus and used for scraping and collecting thrombus tissue attached to the wall of a blood vessel, and besides, the collected thrombus tissue is pushed to the position near the suction opening in the near end of the suction catheter.

Description

technical field [0001] The invention relates to a catheter device for aspiration of thrombus in a blood vessel and a basket assembly thereof, belonging to the technical field of blood vessel interventional medicine. Background technique [0002] Abnormal vascular channels cause blood to flow abnormally in blood vessels. This hemodynamic abnormality can cause a series of adverse consequences such as tissue hypoxia, abnormal intravascular pressure, increased cardiac load, and even heart failure. Therefore, catheter intervention techniques are generally required. Restoring or rebuilding blood flow in abnormal channels in blood vessels. Narrowing or blockage of blood vessels can have several undesirable consequences: blood flow is turbulent, slowing down can lead to blood clot formation, which restricts blood supply to downstream areas of the vasculature. When the blood clot is located in the neurovascular system, it may cause stroke; when the blood clot is located in the pulmo...

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a catheter device for aspiration of intravascular thrombus and its basket assembly, which solves the problem that the thrombus attached to the blood vessel wall is difficult to remove and the suction port is easily blocked in the current catheter device for thrombus removal. , and the problem of easy escape of thrombus

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