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    • 6. 发明申请
    • METHODS AND INSTRUMENTS FOR SPINAL SURGERY
    • 方法和仪器脊髓手术
    • WO0024326A3
    • 2000-08-31
    • PCT/US9925468
    • 1999-10-27
    • SDGI HOLDINGS INCFRIESEM TAILIU MINGYANJOSSE LOIC
    • FRIESEM TAILIU MINGYANJOSSE LOIC
    • A61B17/56A61B17/00A61B17/02A61B17/17A61B17/34A61F2/44A61F2/46
    • A61B17/3421A61B17/1757A61B2017/00261A61B2017/0256A61B2017/3445A61F2/442A61F2/446A61F2/4601A61F2/4611A61F2002/448A61F2002/4627A61F2002/4635A61F2002/4681
    • Surgical techniques and instruments are provided for preparing a disc space for implantation of a vertebral fusion device or implant. In accordance with one embodiment of the technique, a surgical instrument assembly (40) is provided having an outer sleeve (50) with distraction fingers (58) at one end to maintain distraction of a disc space. A switching sleeve (100) having a pair of rotatable distractors (108) is coupled within the outer sleeve (50), and the sleeves are placed over a dilator (150) until the distractor heads (110) are placed within the disc space. The dilator (150) is withdrawn and the disc space distracted by rotating the distractors (108) of the switching sleeve (100). The switching sleeve (100) is uncoupled from the outer sleeve (50) and the fingers (58) of the outer sleeve (50) are then inserted into the disc space. The switching sleeve (100) and dilator (150) are then removed and the outer sleeve (50) defines a channel therethrough that allows insertion of implants at bilateral locations within the disc space without movement or manipulation of the outer sleeve (50). Laparoscopic procedures may be performed in the disc space by placing a sealing member (180) over the end of the outer sleeve (50) after it is inserted into the disc space.
    • 提供手术技术和器械用于制备用于植入脊椎融合装置或植入物的椎间盘空间。 根据本技术的一个实施例,提供了一种外科器械组件(40),其具有在一端处具有分开指状物(58)的外套管(50)以维持椎间盘空间的分散。 具有一对可旋转的牵引器(108)的开关套筒(100)联接在外部套筒(50)内,并且套筒置于扩张器(150)上,直到牵引器头部(110)放置在椎间盘空间内。 通过旋转开关套筒(100)的牵引器(108),扩张器(150)被撤回并且椎间盘空间被分散。 切换套筒(100)从外套筒(50)脱开,然后外套筒(50)的指状物(58)插入到盘空间中。 然后移除开关套管(100)和扩张器(150),并且外套管(50)限定穿过其中的通道,该通道允许植入物在椎间盘空间内的双侧位置处插入,而无需移动或操纵外套管(50)。 腹腔镜手术可以通过在外套管(50)的端部插入椎间盘空间之后将密封构件(180)放置在椎间盘空间中来执行。