Drug balloon catheter with blocking function

Abstract

The invention provides a drug balloon catheter with a blocking function. The drug balloon catheter comprises an outer tube, a middle tube, an infusion tube and an inner tube from the outer layer to the inner layer in sequence, far ends of the inner tube and the infusion tube extend from the far end of the middle tube, the drug balloon catheter further comprises a drug balloon assembly as well as anear-end balloon and a far-end balloon which are located at the near end and the far end of the drug balloon assembly respectively, the far end and the near end of the near-end balloon are connectedonto the outer wall of the outer tube, the near end of the far-end balloon is connected to the far end of the middle tube, the far end of the far-end balloon is connected onto the outer wall of the infusion tube, a gap between the middle tube and the infusion tube communicates with an inner cavity of the far-end balloon, the near end and the far end of the drug balloon assembly are connected ontothe outer wall of the outer tube, the drug balloon assembly is located between the far-end balloon and the near-end balloon, and the near end of the infusion tube is connected onto the outer wall of the inner tube.

Description

technical field [0001] The application relates to a drug balloon catheter with a blocking function. Background technique [0002] In recent years, with the rapid development of neuroimaging, catheter technology, materials, and computers, endovascular interventional technology has become increasingly mature in the treatment of vascular diseases, and has been affirmed by doctors and patients for its minimally invasive, safe, and effective features. At present, it has become one of the important treatment methods for vascular diseases. [0003] In the interventional treatment method, a balloon catheter is needed. The balloon catheter is a tool for angioplasty. The balloon is sent into the atherosclerosis and stenosis through the guide wire and the guiding catheter, and the balloon is expanded with pressure. It is a very effective new technology in the treatment of cardiovascular diseases in recent years, which can crack plaque, expand blood vessels, and improve blood flow. Ho...

AI Technical Summary

Problems solved by technology

[0012] 3. The drug adheres to the wall for a short time, and it is difficult to be absorbed by the blood vessel wall in large quantities, so that a good therapeutic effect cannot be achieved;

[0013] 4. The drug coating is easy to fall off and produce particles, which is easy to produce thrombus

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