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    • 3. 发明授权
    • Circumferential trocar seal assembly
    • 环形套管针密封组件
    • US07481795B2
    • 2009-01-27
    • US11014244
    • 2004-12-17
    • Brian J. ThompsonMark S. ZeinerPaul T. FranerMichael S. Cropper
    • Brian J. ThompsonMark S. ZeinerPaul T. FranerMichael S. Cropper
    • A61M5/178
    • A61B17/3462
    • A seal assembly adapted for use in conjunction with a trocar assembly includes a plurality of seal segments. Each seal segment includes a peripheral edge and a seam edge. At least a first seal segment and a second seal segment are connected along their respective peripheral edges to form a first seal layer having a seam defined by the seam edge of the first seal segment and the seam edge of the second seal segment. At least a third seal segment and a fourth seal segment are connected along their respective peripheral edges to form a second seal layer having a seam defined by the seam edge of the third seal segment and the seam edge of the fourth seal segment. The seam of the first seal layer has a first longitudinal axis and the seam of the second seal layer has a second longitudinal axis, and the first seal layer is oriented relative to the second seal layer such that the first longitudinal axis is angularly oriented relative to the second longitudinal axis.
    • 适于与套管针组件一起使用的密封组件包括多个密封段。 每个密封段包括周边边缘和边缘。 至少第一密封段和第二密封段沿其相应的周边边缘连接以形成具有由第一密封段的接缝边缘和第二密封段的接缝边缘限定的接缝的第一密封层。 至少第三密封段和第四密封段沿其相应的周缘连接以形成具有由第三密封段的接缝边缘和第四密封段的接缝边缘限定的接缝的第二密封层。 所述第一密封层的接缝具有第一纵向轴线,并且所述第二密封层的接缝具有第二纵向轴线,并且所述第一密封层相对于所述第二密封层定向,使得所述第一纵向轴线相对于 第二纵轴。