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    • 3. 发明公开
    • TISSUE REPAIR WITH SPACE-SEEKING SPIRALS OF FILAMENT
    • GEWEBEREPARATUR MIT RAUMSUCHENDEN FILAMENT-SPIRALEN
    • EP2688499A1
    • 2014-01-29
    • EP12723539.8
    • 2012-03-23
    • Yeung, Jeffrey E.Yeung, Teresa, T.
    • Yeung, Jeffrey E.Yeung, Teresa, T.
    • A61B17/70A61F2/46A61F2/44A61B17/88A61B17/34
    • A61F2/442A61B17/0483A61B17/3468A61B17/7061A61B17/7094A61B17/8852A61B2017/00805A61B2017/00867A61F2/0036A61F2/4611A61F2002/30289A61F2002/30294A61F2002/30677A61F2002/444A61F2002/4495A61F2002/4635A61F2210/0061A61F2230/0091A61F2250/0067A61F2310/00598A61F2310/0061A61F2310/0097A61F2310/00976A61F2310/00982
    • A distal portion of a filament is extended beyond the distal end of a needle with a gripper. The needle with the extended filament is inserted into a cannula with snagging points at the distal opening of the cannula in tissue. The snagging points of the cannula hook and retain the distal portion of the filament. During partial withdrawal of the needle, a section of filament is deposited in the lumen of the cannula between the distal ends of the needle and cannula. When the needle is re-advanced, the section of filament is expelled or pushed out of the cannula into tissue. The needle is then rotated; the gripper engages and spirals the expelled filament, burrowing into tissue. The needle can further advanced to push and pack the spiral of filament deep into the tissue. The knot-like filament spiral is individually formed by rotation of the needle and friction between the extended filament and tissue. The process of needle partial withdrawal, re-advancement, rotation and pushing is repeated to pack and fill the tissue with interconnecting spirals of filament to prevent migration from tissue. Spiraling of the filament driven by the rotating needle is space seeking, filling, fitting or conforming to fortify, bulk, fill, cushion or repair the tissue. Bulking with filament spirals can repair degenerated disc, urinary incontinence, fecal incontinence or other defective tissue. The filament spirals can also be used as a suture anchor deep within tissue.
    • 丝线的远端部分用夹具延伸超过针的远端。 将具有延伸细丝的针插入具有在组织中插管的远端开口处的阻塞点的插管中。 插管钩的阻塞点并保持丝的远端部分。 在针的部分抽出期间,在针和插管的远端之间的一段细丝沉积在套管的内腔中。 当针被再推进时,细丝的部分被排出或从套管推出到组织中。 然后旋转针头; 夹具接合并螺旋排出的细丝,挖入组织。 针可以进一步推进以将丝的螺旋深入到组织中。 结状丝状螺旋通过针的旋转和延长的细丝与组织之间的摩擦分别形成。 针头部分抽出,再推进,旋转和推动的过程重复,用纤维互连的螺旋填充和填充组织以防止从组织迁移。 由旋转针驱动的细丝的螺旋形是空间寻找,填充,配合或符合强化,散装,填充,缓冲或修复组织。 用丝线螺旋填充可以修复退化的椎间盘,尿失禁,大便失禁或其他有缺陷的组织。 长丝螺旋也可以用作组织内部的缝合锚。