Joshua David Gunn;Hansen A Yuan;Jeffrey Scott Radcliffe
发明人:
Jeffrey Scott Radcliffe,Joshua David Gunn,Hansen A Yuan
申请号：
US14259760
公开号：
US09642720B2
申请日:
2014.04.23
申请国别(地区):
US
年份:
2017
代理人:
摘要：
An expandable implant device (100, 300, 600) for insertion between two vertebrae (400) is disclosed. The device (100, 300, 600) has a center body (10) one or more lift bodies (20, 40) and an external retaining band (60). The external retaining band (60) holds the sides (22, 42) of the one or more lift bodies (20, 40). The center body (10) has ramp surfaces (11) having a plurality or sets of ramps (11) sloped for allowing upward movement of the one or more lift bodies (20, 40). The sides (22, 42) have complimentary ramp surfaces that fit onto the ramps (11) of the center body (10). The height of the device (100, 300, 600) is increased by upward movement or downward movement or both of the one or more lift bodies (20, 40) driven by the lengthwise movement of the center body (10).
