Systems, devices and methods relating to a
spinal implant for placement in a
disc space of a spine are described. A
spinal implant (1) can include a plurality of wedge members including a leading wedge (22), a trailing wedge (28), and one or more intermediary wedges (26) therebetween. The
spinal implant (1) can be configured to have a first
linear configuration in which the plurality of wedge members are in a linearly expanded form and a second circular configuration in which the plurality of wedge members are positioned circumferentially relative to a center axis. In its first configuration, the spinal
implant (1) can be delivered to a
disc space, whereby it can assume its second configuration within the
disc space, thereby forming a replacement
nucleus. The spinal
implant (1) can be kept in its first configuration by a rod member (41) received as through the plurality of wedge members. The wedge members can be slidably removed off of the rod member (41) and can assume the second configuration.