expandable titanium cage implants and instrumentation

1 each V-Lock expandable titanium cage implants and instrumentation or equivalent, with vendor representative in attendance during patient specific surgery scheduled for 1 August 2017. Items are need for a L4-5 posterior lumbar arthrodesis (PLIF) with restoration of disc height. Implants must provide a choice of lordosis, adjustable in situ from 0 degrees to 11 degrees. Must have anti-black-out teeth for stability of the implant. Implant must have a wide graft chamber (from 212 mm3 to 1318 mm3). Maximum size is 22mm. SUBSTITUTE ITEMS: If you plan to provide other than the brand name cited in the purchase description, provide in your response the brand name and the catalog or part number you intend to furnish and the characteristics of the substitute item that are equivalent to the brand name. Also provide all documents which clearly describe the item(s) so that it/they can be evaluated by the end user. Failure to submit the requested substitute item information before the closing date listed above will eliminate the vendor from all further consideration. Items otherwise equal may not satisfy the requirement due to differences in material composition, size, environmental application, etc. If an item is furnished which does not meet the requirement the item will be returned at the vendor's expense for a full refund. Award will be made on the basis of the lowest evaluated price of proposals meeting or exceeding the acceptability standards for non-cost factors.