A conformable and wall-adherent pulse balloon dilatation catheter and its use method

By using expanded balloons made of pressure-resistant polymer materials and installing electrodes on the outside of the balloon, the problems of easy rupture and poor treatment effects in the prior art are solved, and better fit and therapeutic effects are achieved, while simplifying the process and reducing costs.

CN115644984BActive Publication Date: 2025-03-18SHANGHAI BIO HEART BIOLOGICAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202211318771.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-10-26
Publication Date
2025-03-18
Estimated Expiration
2042-10-26

AI Technical Summary

Technical Problem

The existing pulse shock wave balloon catheter is hard and prone to rupture, the electrode is limited and cannot effectively fit the blood vessel wall, resulting in poor treatment effect, and complex process and high cost.

Method used

An expanded balloon made of pressure-resistant polymer material, the electrode is arranged on the outside of the balloon, and the balloon is injected into the open hole of the inner tube to expand the balloon, and the electrode limits the balloon to ensure fit and stability.

Benefits of technology

The fit between the balloon and the blood vessel wall is improved, the balloon rupture is avoided, the treatment effect is enhanced, the process is simplified, and the cost is reduced.

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Abstract

The present invention discloses a conformable and wall-adhering pulse balloon dilatation catheter and a method for using the catheter. The catheter comprises an outer tube and an inner tube arranged inside the outer tube. The dilatation balloon is wrapped around the outside of the inner tube. At least one electrode is sleeved on the outside of the dilatation balloon, and the electrode is also sleeved on the outside of the inner tube. Contrast fluid is filled into the dilatation balloon through an opening of the inner tube to expand it. The electrode limits the dilatation balloon to at least two expansion bodies, and the electrode is located in the gap between adjacent expansion bodies. After contrast fluid is injected into the lesion site, the balloon in the device perfectly fits the calcification, and the calcification is treated by the pulse shock wave generated by the electrode outside the balloon, which ensures both the treatment effect and the safety during the treatment process.
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