Monofilament balloon dilatation catheter

CN122031885APending Publication Date: 2026-05-15LIAONING YINYI BIOTECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing PTCA balloons have a large outer diameter, making it difficult to pass through tortuous blood vessels during intravascular anchoring. This necessitates the simultaneous insertion of multiple instruments, which affects the success rate and efficiency of the procedure and increases the financial burden on patients.

Method used

A monofilament balloon dilation catheter is designed, which adopts a structure combining a core wire and a balloon. The distal end of the core wire is connected to the tip tube, while the proximal end is suspended and controllable. The guidewire channel is located at the distal end of the balloon, and the guidewire is fixed by the friction of the balloon, reducing the number of instruments and lowering the outer diameter of the catheter.

Benefits of technology

It enables the delivery of multiple instruments with a single guidewire, improving surgical efficiency, reducing the outer diameter of instruments, simplifying operations, and reducing the burden on patients.

✦ Generated by Eureka AI based on patent content.

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Abstract

The monofilament balloon dilatation catheter is formed by sequentially connecting a handle, a near-end rod, a far-end rod, a balloon and a tip tube, a core wire is arranged in the handle, the near-end rod, the far-end rod, the balloon and the tip tube in a penetrating mode, the far end of the core wire is connected with the tip tube, and the near end of the core wire penetrates out of the handle. Compared with the prior art, no inner tube is arranged in the balloon, and the outlet of the guide wire channel is located at the far end of the balloon. The core wire is wrapped through constraint of the balloon, the near end of the core wire extends out of the near end of the handle so that an operator can control the core wire, the passing outer diameter can be reduced, and meanwhile the effect of supporting the balloon is achieved; and the near-end suspended part can control the trend of the far end of the catheter, so that the catheter can reach a target lesion part through tortuous lesion. A guide wire is inserted from the tip end of the catheter and led out from the guide wire channel, when the balloon is expanded, the guide wire can be fixed and guided through the friction force between the balloon and the blood vessel wall, and an interventional instrument which is convenient and easy to operate is provided.
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