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    • 3. 发明申请
    • Multi-Layer Filtration Device
    • 多层过滤装置
    • US20140081315A1
    • 2014-03-20
    • US14084008
    • 2013-11-19
    • COOK MEDICAL TECHNOLOGIES LLC
    • Charles L. McIntoshShyam KuppurathanamJeffry S. Melsheimer
    • A61F2/01A61F2/82
    • A61F2/013A61F2/82A61F2002/016A61F2230/0093A61F2250/0023
    • A filter device assembly and a method of using such a device to capture and remove embolic material from a body lumen or blood vessel is provided. The filter device assembly generally comprises a structure having a collapsed state and an expanded state with first, second, and optionally N additional filter members circumferentially attached thereto. Each filter member forms an annulus chamber with the first filter member having porosity P1; the second filter member circumferentially having porosity P2; and the N additional filter members each having porosity [P3 . . . P(2+N)]. The magnitude of the porosity for the first, second, and N additional filter members follows the relationship P1>[P3> . . . >P(2+N)]>P2. The first, second, and N additional filter portions are configured in the expanded state to allow blood to flow there through and to capture emboli in the annulus chambers.
    • 提供了一种过滤器装置组件和使用这种装置从体腔或血管捕获和去除栓塞材料的方法。 过滤装置组件通常包括具有收缩状态和膨胀状态的结构,其中第一,第二和任选地N个额外的过滤构件周向地附接到其上。 每个过滤器构件形成具有孔隙率P1的第一过滤构件的环空室; 周向具有孔P2的第二过滤构件; 并且N个附加的过滤器构件各自具有孔隙率[P3。 。 。 P(2 + N)]。 第一,第二和第N附加过滤器构件的孔隙度的大小遵循关系P1> [P3>。 。 。 > P(2 + N)]> P2。 第一,第二和第N附加过滤器部分被配置为膨胀状态,以允许血液在那里流过并捕获环空室中的栓塞。
    • 4. 发明授权
    • Multi-layer filtration device
    • 多层过滤装置
    • US09271820B2
    • 2016-03-01
    • US14084008
    • 2013-11-19
    • COOK MEDICAL TECHNOLOGIES LLC
    • Charles L. McIntoshShyam KuppurathanamJeffry S. Melsheimer
    • A61M29/00A61F2/01A61F2/82
    • A61F2/013A61F2/82A61F2002/016A61F2230/0093A61F2250/0023
    • A filter device assembly and a method of using such a device to capture and remove embolic material from a body lumen or blood vessel are provided. The filter device assembly generally includes a structure having a collapsed state and an expanded state with first, second, and optionally N additional filter members circumferentially attached thereto. Each filter member forms an annulus chamber with the first filter member having porosity P1; the second filter member circumferentially having porosity P2; and the N additional filter members each having porosity [P3 . . . P(2+N)]. The magnitude of the porosity for the first, second, and N additional filter members follows the relationship P1>[P3>. . . >P(2+N)]>P2. The first, second, and N additional filter portions are configured in the expanded state to allow blood to flow there through and to capture emboli in the annulus chambers.
    • 提供了一种过滤器装置组件和使用这种装置从体腔或血管捕获和去除栓塞材料的方法。 过滤装置组件通常包括具有收缩状态和膨胀状态的结构,其中第一,第二和任选地N个额外的过滤构件周向地附接到其上。 每个过滤器构件形成具有孔隙率P1的第一过滤构件的环空室; 周向具有孔P2的第二过滤构件; 并且N个附加的过滤器构件各自具有孔隙率[P3。 。 。 P(2 + N)]。 第一,第二和第N附加过滤器构件的孔隙度的大小遵循关系P1> [P3>。 。 。 > P(2 + N)]> P2。 第一,第二和第N附加过滤器部分被配置为膨胀状态,以允许血液在那里流过并捕获环空室中的栓塞。