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TOTAL DISC REPLACEMENT WITH W SHAPED SPRING ELEMENTS
TOTAL DISC REPLACEMENT WITH W SHAPED SPRING ELEMENTS
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机译:带有W形弹簧元件的总盘更换
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摘要
An intervertebral implant (10) for mounting between superior and inferior vertebrae includes first and second endplates (12 14) and an inlay (26). The first endplate (12) has a first vertebra engagement surface and a first inner surface (12f ). The first vertebra engagement surface is mounted to the superior vertebra in an implant positions. The second endplate (14) has a second vertebra engagement surface and a second inner surface (14f ). The second vertebra engagement surface is mounted to the inferior vertebra in the implanted position. The inlay (26) is mounted to and between the first and second inner surfaces (12f 14f) in an assembled configuration. The inlay includes a first mounting plate (28) a second mounting plate (30) a first W shaped spring (32) and a second W shaped spring (34). The first and second W shaped springs are mounted between the first and second mounting plates. The first and second W shaped springs have longitudinal axes that are generally parallel to the insertion axis.
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