Abstract: A cannula assembly for providing percutaneous access in minimally invasive spinal surgeries, includes an outer cannula, a nerve probe dilator and a multistage dilator system comprising a first dilator, a second dilator, a third dilator and a fourth dilator. The outer cannula and the dilators are slidable relative to each other and are arranged sequentially so that the fourth dilator surrounds the nerve probe dilator, the third dilator slides over a surface of the fourth dilator, the second dilator slides over a surface of the third dilator, the first dilator slides over a surface of the second dilator, and the outer cannula surrounds the first dilator.

Abstract: A spinal stabilization implant assembly includes a first cervical stabilization plate comprising an elongated body having a top portion and a bottom portion, and a second cervical stabilization plate comprising an elongated body having a top portion and a bottom portion. The bottom portion of the first cervical stabilization plate is attached to a first vertebra and the top portion of the second stabilization plate is stacked end-to-end below the bottom portion of the first cervical stabilization plate and is attached to the same first vertebra. The top portion of the first cervical stabilization plate is attached to a second vertebra, and the bottom portion of the second stabilization plate is attached to a third vertebra. The second vertebra is superior to the first vertebra, and the third vertebra is inferior to the first vertebra.

Abstract: A connector assembly for translateral linking of bilateral spinal fixation rods includes first and second components. The first component has an elongated body having first and second ends, and the first end of the first component is configured to connect to a first spinal fixation rod. The second component has an elongated body having first and second ends, and the first end of the second component is configured to connect to a second spinal fixation rod. The second end of the first component is configured to be slidably connected to the second end of the second component.

Abstract: A cannula assembly for providing percutaneous access in minimally invasive spinal surgeries, includes an outer cannula, a nerve probe dilator and a multistage dilator system comprising a first dilator, a second dilator, a third dilator and a fourth dilator. The outer cannula and the dilators are slidable relative to each other and are arranged sequentially so that the fourth dilator surrounds the nerve probe dilator, the third dilator slides over a surface of the fourth dilator, the second dilator slides over a surface of the third dilator, the first dilator slides over a surface of the second dilator, and the outer cannula surrounds the first dilator.