Medos International Sarl

Phat Luu

Sean Saidha

Roger Berger

Thomas E Martin

Stephane Gully

Connor Engstrom

Jonathan Melchor

Markus Hunziker

Didier Gonzalez

Meredith Walsh

An expandable intervertebral cage includes vertically opposed superior and inferior plates and longitudinally opposed distal and proximal wedges disposed between the plates. The wedges define ramps that engage complimentary ramps of the superior and inferior plates to increase a vertical distance between the plates. An actuator is located between the plates, defines a central, longitudinal axis, and is coupled to the wedges such that, as the actuator rotates about the axis, at least one of the wedges moves longitudinally relative to the other, thereby increasing the vertical separation distance. At least one locking component is insertable within a receptacle at least partially defined by the proximal wedge and is configured to transition from an unlocked configuration, where the actuator is rotatable relative to the proximal wedge, to a locked configuration, where the actuator is rotationally affixed relative to the proximal wedge.

Stabilization members for expandable intervertebral implants, and related systems and methods

An expandable implant includes a first plate and a second plate spaced from each other along a first direction. The first plate defines a first bone-contacting surface configured to contact a superior vertebral body and the second plate defines a second bone-contacting surface opposed to the first bone contacting surface along the first direction. The second bone contacting surface is configured to contact an inferior vertebral body. The implant includes an actuation member at least partially disposed between the first and second plates with respect to the first direction. The actuation member defines a first axis, a first end and a second end spaced from the first end along a second direction along the first axis. The second direction is perpendicular to the first direction. The implant includes first and second wedge members carried by the actuation member and in engagement with the first and second plates, and also includes a drive member defining a second axis, a proximal end and a distal end spaced from the proximal end along a third direction along the second axis. The third direction is perpendicular to the first direction and offset from the second direction. The drive member is configured to communicate a driving force to the actuation member so as to cause the actuation member to rotate about the first axis, and at least one of the first and second wedge members is configured to translate along the second direction in response to rotation of the actuation member about the first axis so as to move at least one of the first and second plates with respect to the other of the first and second plates along the first direction.

Expandable intervertebral implant and related methods

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New Bedford, MA, United States of America

Phat Luu