Patent ID: 9439776
Filing Date: 2016-09-13
CPC Classification: A61B,A61F,A61K,A61L

Claim Text:
1. An intervertebral fusion device comprising: i. a non-enclosed arcuate flexible upper rail, said upper rail being arcuate along a longitudinal axis thereof; and ii. a non-enclosed arcuate flexible lower rail, said lower rail being arcuate along a longitudinal axis thereof, wherein the device has a collapsed configuration in which the upper and lower rails are separated by a first height, wherein the device has an expanded configuration in which the upper and lower rails are separated by a second height, wherein the second height is greater than the first height, and wherein transition from the collapsed configuration to the expanded configuration is accomplished by insertion of a load-bearing material between the upper and lower rails, wherein the load-bearing material comprises PEEK.