A self-centered vena cava filter includes a recovery unit (1300) for filter recovery, a filter unit (1100) for filtering thrombus, and a support unit (1200) for preventing filter tilt; a filter unit (1100) includes at least two layers of filters arranged axially, two adjacent layers of filters arranged axially staggered; and a support unit (1200) is an extension from the center to the filter unit (1100). The retriever (1300) is a self-centered vena cava filter with good self-centering performance and preventing the retriever (1300) from adhering to the inner wall of the blood vessel.
【技术实现步骤摘要】
【国外来华专利技术】PCT国内申请,说明书已公开。
【技术保护点】
PCT国内申请,权利要求书已公开。
【技术特征摘要】
【国外来华专利技术】2017.04....
【专利技术属性】
技术研发人员:张庭超,李阳,
申请(专利权)人:杭州唯强医疗科技有限公司,
类型:发明
国别省市:浙江,33
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