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Closuredeviceforpatentductusarteriosusandarteriovenousfistula

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Registration number：G20250775

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Subject classification：

Key words： arteriovenous fistula

Green classification：

Publisher：管理人员

Release time：2025-08-09 09:00:02.0

  • Essential information
Name of achievement： Closuredeviceforpatentductusarteriosusandarteriovenousfistula
Result registration number： G20250775 Subject classification：
Green classification： Item keywords： arteriovenous fistula        
Recommenders：

Tongji University

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Mode of cooperation： Outcome Information：
Countries/regions： China Intellectual property rights：
Introduction： Click to view
This utility model relates to a closure device for patent ductus arteriosus (PDA) and arteriovenous fistula. The self-expandable stent transitions to a temperature of 33°C, above which it can achieve a good expanded state. The elastic stent, after expansion, takes on the shape of a cork or dumbbell and can be firmly fixed within the PDA or fistula. This utility model is simple, safe, reliable, and has definite therapeutic effects. It can be operated under conditions without fluoroscopy but with television monitoring, making it suitable for use in most hospitals.
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