Patent ID: 11951016
Assignee: INTEGRITY IMPLANTS INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. An expandable fusion device for implantation between two adjacent vertebrae, the device comprising:
a wedge assembly comprising a first wedge and a second wedge;
a ramp assembly slidably coupled with the wedge assembly;
an upper endplate assembly slidably coupled with the ramp assembly; and,
a lower endplate assembly slidably coupled with the ramp assembly;
wherein the device is configured such that
a first movement comprising translating the first wedge a first distance towards or away from the second wedge increases the width without increasing the height;
a second movement comprising translating the first wedge a second distance beyond the first distance towards or away from the second wedge increases the height; and
a third movement comprising translating the first wedge a third distance beyond the second distance towards or away from the second wedge provides a further height expansion without a width expansion; and

wherein the first movement further comprises a sliding at the slidable coupling between the ramp assembly and the wedge assembly.