Abstract: An expandable cage (1) for maintaining a distance between two vertebras on a spine and providing fusion is disclosed. The expandable cage (1) comprises a horizontal axis, a front part with an upper arm (1.1), a lower arm (1.2), and shaft fixation sockets (1.7.1 and 1.7.2) located between the arms (1.1 and 1.2), and a hollow shaft (2) with graft holes (2.4). The shaft (2) is placed parallel to the horizontal axis and partially inside the shaft fixation sockets (1.7.1 and 1.7.2). The cage (1) is expanded vertically by rotating the shaft (2) 90 degrees with an instrument, thus further separating vertically the upper arm (1.1) and the lower arm (1.2).

Abstract: A fixation system, which is developed for the treatment of diseases on a cervical, thoracal or lumbar spine and especially to maintain the distance between two vertebras on the spine and achieve fusion, is disclosed herein. The system preferably comprises a main cage (2), at least one dynamic shaft (3) fitted into the main cage (2) in parallel with cage axis, at least one sharp blade (5) fixed with a fixation pin (4) on to the shaft (3), and at least two imaging pins (6) located in two different axis- which helps to locate/identify the structure under X-Ray imaging during a surgery. A preferred sharp blade (5) is configured to turn 90° in the main cage (2) with the help of the shaft (3), and to penetrate into the vertebras with the help of sharp side surfaces (5.3) of the blade (5).

Abstract: The invention comprises of an expandable cage (1), a hollow shaft (2) with graft holes (2.4) on it, which is placed into the expandable cage (1) in parallel with expandable cage (1) axis and an instrument specifically designed for this system which is developed for the treatment of diseases on thoracic and lumbar spine and especially to maintain the distance between two vertebras on the spine and achieve fusion. The invention relates especially to the sitting of the shaft (2) into the shaft fixation sockets by turning it properly in full angle within the cage (1), with the help of the instrument and in this way fixing the system between the two vertebras by expanding the upper arm (1.1) and lower arm (1.2) of the expandable cage (1) in opposite directions.

Abstract: The invention is a fixation system, which is developed for the treatment of diseases on cervical, thoracal and lumbar spine and especially to maintain the distance between two vertebras on the spine and achieve fusion, comprises of a main cage (2), at least one dynamic shaft (3) fitted into the main cage (2) in parallel with cage axis, at least one sharp blade (5) fixed with a fixation pin (4) on to the shaft (3), and at least two imaging pins (6) located in two different axis- which helps to locate/identify the struc tune under X-Ray imaging during a surgery. The invention relates especially to the sharp blade (5)—one of the system elements—which is turned 90° in the main cage (2) with the help of shaft (3), and penetrated into the vertebras with the help of sharp side surfaces (5.