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    SPINE DISTRACTION IMPLANT
    104.
    发明申请
    SPINE DISTRACTION IMPLANT 有权
    脊柱分界植入

    公开(公告)号：US20100262243A1

    公开(公告)日：2010-10-14

    申请号：US12821077

    申请日：2010-06-22

    申请人： James F. Zucherman ,  Ken Y. Hsu ,  Charles J. Winslow ,  Henry A. Klyce ,  Scott A. Yerby ,  John J. Flynn ,  Steven T. Mitchell ,  John A. Markwart

    发明人： James F. Zucherman ,  Ken Y. Hsu ,  Charles J. Winslow ,  Henry A. Klyce ,  Scott A. Yerby ,  John J. Flynn ,  Steven T. Mitchell ,  John A. Markwart

    IPC分类号： A61F2/44

    CPC分类号： A61B17/7068 ,  A61B17/66 ,  A61B17/7065 ,  A61B17/7071 ,  A61B2017/00557 ,  A61K31/37

    摘要： A spine distraction implant alleviates pain associated with spinal stenosis and facet arthropathy by expanding the volume in the spine canal and/or neural foramen. The implant provides a spinal extension stop while allowing freedom of spinal flexion. An interspinous process implant with a selectably expandable spacer can be placed between adjacent spinous processes. a device implanted between the spinous processes of adjacent vertebrae of the spine can be used for relieving pain associated with the vertebrae and surrounding tissues and structures by maintaining and/or adding distraction between adjacent vertebrae. A tissue expander can be adapted to move from a first insertion position, for ease of implantation between spinous processes, to a second retention position that prevents displacement of the implant. An embodiment of a system can include an implant having a spacer with a thickness and a wing, wherein a first configuration of the wing has a first height substantially similar to the thickness and wherein the wing is adapted to be selectably arranged in a second configuration such that the wing has a second height greater than the first height. A periphery of the implant has a shape generally conformal with a shape of an inner surface of a cannula and a cross-sectional diameter smaller than an inner diameter of the cannula. The cannula is inserted such that a proximal end of the cannula is arranged between the adjacent spinous processes. The implant is then urged into position between the adjacent spinous processes by way of the cannula, and subsequently arranged in a second configuration to fix the implant in position.

    摘要翻译： 脊柱分心植入物通过扩大脊柱管和/或神经孔的体积来减轻与脊柱狭窄和小关节病相关的疼痛。 植入物提供脊椎伸展停止，同时允许脊柱屈曲的自由。 具有可选择地可扩展间隔物的椎间植入植入物可以放置在相邻的棘突之间。 植入脊椎相邻椎骨的棘突之间的装置可用于通过维持和/或增加相邻椎骨之间的牵引来减轻与椎骨和周围组织和结构相关的疼痛。 组织扩张器可以适于从第一插入位置移动，以便于在棘突之间植入到防止植入物移位的第二保持位置。 系统的实施例可以包括具有厚度和翼的间隔件的植入物，其中所述翼的第一构造具有与所述厚度基本相似的第一高度，并且其中所述翼适于可选地布置成第二构型 机翼的第二高度大于第一高度。 植入物的周边具有与插管的内表面的形状大致一致的形状，并且截面直径小于插管的内径。 套管被插入使得插管的近端布置在相邻的棘突之间。 然后通过插管将植入物推动到相邻棘突之间的位置，并且随后被布置成第二构造以将植入物固定就位。