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    • 9. 发明申请
    • DEVICES AND METHODS FOR ANCHORING A SHEATH IN A TISSUE CAVITY
    • 用于锚固组织中的皮肤的装置和方法
    • WO2017048989A1
    • 2017-03-23
    • PCT/US2016/051985
    • 2016-09-15
    • FONG, Kenton D.LEE, JanETTER, Jeffrey W.
    • FONG, Kenton D.LEE, JanETTER, Jeffrey W.
    • A61B17/00A61F2/00A61F2/04A61F2/848
    • A61F5/4408A61F5/449
    • According to some embodiments of the invention, an anchoring system includes a sleeve having an inner surface defining a first lumen, a first annular sealing mechanism disposed at a proximal end of the sleeve, and a second annular sealing mechanism disposed at a distal end of the sleeve. The anchoring system further includes a pressure tube in fluid connection with an outer surface of the sleeve, a sheath in mechanical connection with the sleeve, the sheath forming a second lumen, the second lumen being in fluid connection with the first lumen, and open-cell foam disposed on the outer surface of the sleeve. Application of negative pressure to the pressure tube causes a seal to form between the first and second annular sealing mechanisms and an inner surface of a tissue cavity. Application of negative pressure to the pressure tube also creates a frictional force that resists displacement of the sleeve.
    • 根据本发明的一些实施例,锚定系统包括具有限定第一内腔的内表面的套筒,设置在套筒的近端处的第一环形密封机构和设置在套筒的远端处的第二环形密封机构 袖。 锚固系统还包括与套筒的外表面流体连接的压力管,与套筒机械连接的护套,护套形成第二管腔,第二管腔与第一管腔流体连通, 细胞泡沫设置在套筒的外表面上。 对压力管施加负压导致在第一和第二环形密封机构与组织腔的内表面之间形成密封。 对压力管施加负压也产生抵抗套筒位移的摩擦力。