Drug-eluting balloon dilatation catheter and use method

Abstract

The embodiment of the invention discloses a drug-eluting balloon dilatation catheter. The drug-eluting balloon dilatation catheter includes a dual-lumen catheter and a dual-lumen catheter seat connected to one end of the dual-lumen catheter, a drug balloon is connected to the other end of the dual-lumen catheter, a drug coating is arranged on the surface of the drug balloon, the dual-lumen catheter seat communicates with the drug balloon through the dual-lumen catheter, and a protection sleeve which can move relative to the dual-lumen catheter and the drug balloon and is used for restraining the drug balloon is arranged on the outer side of the drug balloon in a sleeving mode. The drug-eluting balloon dilatation catheter is provided with the protection sleeve, when the balloon is insertedinto a blood vessel, since the protection sleeve is connected to the surface of the balloon in a sleeving mode so that the balloon cannot be directly washed by blood, when the balloon with the drug extends into a blood vessel with vascular disease of a patient, the balloon is exposed from the protection sleeve and filled and tightly attached to the diseased blood vessel, so that the treatment operation is performed, the operation process is simple and convenient, and the loss of drug amount due to the friction between the inner wall of the blood vessel and the drug on the surface of the balloon is further avoided.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of medical devices, and in particular to a drug-eluting balloon dilatation catheter and a method of use thereof. Background technique [0002] Balloon dilation catheter is a soft catheter with an inflatable balloon at the head end. The main structure of the current balloon dilation catheter includes three parts: balloon, catheter and double-lumen catheter seat. It is often used in image-guided Expand the narrow hollow viscera in the human body, such as blood vessels, digestive tract, urinary tract, etc. Without inflation, the balloon and catheter will enter the diseased blood vessel. When the balloon is sent to the diseased blood vessel, it can quickly inflate the catheter, so that the drug coating on the surface of the balloon is close to the inner wall of the vascular diseased area, and the treatment is successful. The balloon can then be retracted to withdraw the balloon cathete...

AI Technical Summary

Problems solved by technology

[0004] Therefore, the embodiment of the present invention provides a drug-eluting balloon dilatation catheter and its use method to solve the problem in the prior art that after the balloon is inserted into the blood vessel, the blood in the blood vessel and the inner wall of the blood vessel will wash and rub the drug coating , so that a large amount of medicine on the balloon is lost, resulting in a decline in the therapeutic effect

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