A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 2/44 (2006.01) A61B 17/88 (2006.01) A61F 2/46 (2006.01)
Patent
CA 2583347
An augmentation instrument (150) for attaching a retaining device (34) to a vertebral endplate comprises a drive housing (152) having a distal end portion, a drive mechanism (156) extending through the drive housing and including a flexible shaft portion (166), and an attachment mechanism (172) at the distal end portion of the drive housing. The attachment mechanism is adapted for coupling to the retaining device. The retaining device comprises a buthress plate with a mounting surface (42) and a retaining surface (44). The retaining device is fixed to only one vertebral endplate by a fastener (36), is locatable entirely between the vertebral endplates and prevents migration of a nucleus prosthesis (32) disposed between the vertebral endplates.
L'invention concerne un instrument d'augmentation servant à fixer un dispositif de retenue à un plateau vertébral. L'instrument d'augmentation comprend: un boîtier d'entraînement présentant une partie d'extrémité distale; un mécanisme d'entraînement traversant le boîtier d'entraînement et présentant une partie arbre flexible; et un mécanisme de fixation situé sur la partie d'extrémité distale du boîtier d'entraînement. Le mécanisme de fixation est adapté pour s'accoupler au dispositif de retenue.
Li Lehmann K.
Trieu Hai H.
Smart & Biggar
Warsaw Orthopedic Inc.
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