Drug coated balloon dilating catheter and process thereof

Abstract

The invention discloses a drug coated balloon dilating catheter and a process thereof. The drug coated balloon dilating catheter comprises a drug coated balloon, an outer cavity tube, an inner cavitytube and a connector. The surface of the drug coated balloon is coated with a drug coating, a release drug in the drug coating is a sirolimus derivative BA9, and a carrier of the release drug is polyethylene oxide. A manufacturing process of the drug coated balloon dilating catheter includes steps of catheter assembly and drug coating. The drug coated balloon has advantages of short tissue absorption time, high drug absorption efficiency and high drug coated balloon release rate, and high tissue safety is realized. Compared with an existing taxol drug coated balloon, the drug coated balloon has advantages of promising application prospect.

Description

technical field

[0001] The invention relates to a balloon catheter and a process, in particular to a drug balloon dilation catheter and a process thereof, and belongs to the technical field of medical devices. Background technique

[0002] The main way to treat coronary heart disease is to implant drug-eluting coronary stents (DES). After implanting DES, patients need to take long-term oral antithrombotic drugs and affect subsequent surgical treatment. Moreover, DES may have the problem of late stent thrombosis. Therefore, as a new concept of interventional therapy, "intervention without implantation" is being accepted by more and more clinicians and patients, and drug balloon (DCB) is a new product under this concept of interventional therapy.

[0003] As a new type of intravascular drug release technology, drug balloons are coated with anti-proliferative drugs on the surface of the balloon. The drug carried on the surface is quickly transferred to the blood vessel wall an...

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