Small-diameter balloon catheter and manufacturing method thereof
A technology for balloon catheters and manufacturing methods, which is applied in the direction of balloon catheters, catheters, and other medical devices, and can solve problems such as waste of raw materials, rough surfaces, deformation, etc., achieve convenient size control, improve yield rate, and improve dimensional accuracy Effect
Pending Publication Date: 2020-04-17
四川扬子江医疗器械有限公司
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Problems solved by technology
Under the current production process, the molding rate of 1.0-10.0mm small-diameter balloons is extremely low, and it is more common in the rupture of the balloon during the manufacturing and molding, the rupture of the balloon during the expansion of the test, and the rupture during clinical use, etc.
Great waste of raw materials, not conducive to mass production, but also increases the risk of clinical operations
Through the analysis of the extrusion of the balloon material tube in the existing process, it has the greatest impact on the production of the balloon. Existing conditions such as: deformation, eccentricity, shrinkage, protrusion, surface roughness, micro-cracks, etc. during extrusion will also seriously affect Late Balloon Forming Rate and Performance
Method used
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Embodiment Construction
[0044] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0045] Such as figure 1 , 2 As shown, the first embodiment of the small-diameter balloon catheter includes a tube body 1, a catheter adapter 2 is provided at the tail end of the tube body 1, and an expansion balloon 3 is sleeved on the outer periphery of the head of the tube body 1;
[0046] The tube body 1 includes a main cavity channel 4 and a side cavity channel 5, the side cavity channel 5 communicates with the expansion balloon 3, the main cavity channel 4 communicates with the head end of the tube body 1, and the head end of the tube body 1 has a tapered structure;
[0047] The catheter adapter 2 includes a main lumen joint 6 and a side lumen joint 7, the main lumen joint 6 communicates with the main lumen channel 4, the side lumen joint 7 communicates with...
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The invention discloses a small-diameter balloon catheter and a manufacturing method thereof. The small-diameter balloon catheter comprises a catheter body, a catheter base is arranged at the tail endof the catheter body, and a dilation balloon sleeves the periphery of the head of the catheter body. The catheter body comprises a main cavity channel and a side cavity channel, the side cavity channel is communicated with the dilation balloon, and the main cavity channel is communicated with the head end of the catheter body. The catheter base comprises a main cavity connector and a side cavityconnector, the main cavity connector is communicated with the main cavity channel, and the side cavity connector is communicated with the side cavity channel. The dilation balloon and the catheter body are coaxially arranged, the two ends of the dilation balloon are fixedly connected with the outer wall of the catheter body, and developing marks are arranged in the dilation balloon. The product size is small, the product quality is easy to control, and the yield is high.
Description
technical field [0001] The invention relates to the field of medical devices, in particular to a small-diameter balloon catheter and a manufacturing method thereof. Background technique [0002] In my country, the incidence of cardiovascular disease is extremely high, including more than 13 million strokes and more than 11 million coronary heart diseases. In 2018, the number of PCI operations in China was 915,000. Among them, the stent insertion rate is as high as 90%, and a large number of treatment operations for cerebrovascular stenosis are carried out every year. At present, intravascular stenosis and blockage are mainly treated by intravascular balloon dilation and stent implantation. [0003] A balloon catheter is an endovascular angioplasty tool. Under the guidance of medical imaging equipment, the balloon catheter is delivered to the narrow part of the blood vessel by percutaneous puncture technology, and the balloon is expanded under strict monitoring to expand t...
Claims
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IPC IPC(8): A61M25/10A61M31/00
CPCA61M25/104A61M25/1006A61M25/1027A61M31/002A61M2025/1079
Inventor 施猛刘兴华李好雨高飞王文渊杨中科施磊
Owner 四川扬子江医疗器械有限公司