Expanding interbody implant and articulating inserter and method

A device to space vertebral members comprising:

• a first member having a first angled section and a first contact surface;
• a second member having a second exterior contact surface;
• a third member positioned between the first member and the second member, the third member having a second angled section;
• the device positionable between a first orientation with the first angled section engaged with the second angled section and having a first maximum height extending between the contact surfaces and a second orientation with the first angled section disengaged from the second angled section and having an increased second maximum height between the contact surfaces,
• wherein the first member comprises a planar surface that engages a planar surface of the second member when the device is in the second orientation.

A device to space vertebral members comprising:

• a first member having a first angled section and a first contact surface;
• a second member having a second exterior contact surface;
• a third member positioned between the first member and the second member, the third member having a second angled section;
• the device positionable between a first orientation with the first angled section engaged with the second angled section and having a first maximum height extending between the contact surfaces and a second orientation with the first angled section disengaged from the second angled section and having an increased second maximum height between the contact surfaces,
• wherein spring loaded end caps extending from the third member move into apertures in the second member as the device moves from the first orientation to the second orientation to lock the device in the second orientation.