(31 days)
Intervertebral Body Fusion Device: The CoAlign Innovations AccuLIF TL and PL Cages are indicated for intervertebral body fusion with autogenous bone graft material in patients with degenerative disc disease (DDD) at one level or two contiguous levels from L2 to S1. DDD is defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies. These DDD patients may also have up to Grade I spondylolisthesis or retrolisthesis at the involved level(s). These patients should be skeletally mature and have completed six months of non-operative treatment.
The CoAlign Innovations AccuLIF TL and PL Cages are always to be used with supplemental internal spinal fixation. Additionally, the CoAlign Innovations AccuLIF TL and PL Cages are to be used with autogenous bone graft.
The CoAlign Innovations Accul.IF® TL and PL Cage device is an expandable interbody fusion cage manufactured from implant grade Titanium alloy (TI6Al4V ELI) as per ASTM F136-08. Stainless Steel (316 LVM) as per ASTM F138-08, and Silicone Rubber (MED-4870). The device is inserted in unexpanded state with a delivery handle and expanded in-situ to the required height via 2 hydraulic cylinder and piston arrangement using a hydraulic system comprising disposable flexible expansion tubing set and inflation syringe. The device locks in 1mm increments as it expands.
The AccuLIF TL and PL Cage comes in three sizes which are expandable from 6mm to 9mm, from 8mm to 12mm. and from 10mm to 16mm in 1mm increments . As well each size comes in two shapes, crescent and straight and each shape comes in two different footprints 11mm x 25mm and 13mm x 25mm for the crescent shape and 11mm x 22mm and 11mm x 25mm for the straight shape. Also the TL crescent shape comes in an 8 degree lordotic model as well as a 0 degree model for a total of 18 TL and PL models. The device has fixation ridges on the top and bottom surface. It also has a graft opening window which extends from the bottom surface to the top surface. The device has a proximal boss which has a threaded connection port for connecting to the inserter and a fluid port for transporting the expansion fluid.
The purpose of the special 510(k) is to introduce several design modifications to increase the surface area of the Top Plate.
The provided text is a 510(k) summary for the CoAlign Innovations AccuLIF TL and PL Cage, which is an intervertebral body fusion device.
Based on the provided text, the device does not involve any AI or software for medical image analysis or interpretation. Therefore, it is not applicable to describe acceptance criteria or a study that proves the device meets those criteria in the context of AI performance.
The document describes a medical device (an expandable interbody fusion cage) and its 510(k) submission for design modifications. The "Discussion of Testing" section explicitly states:
- "The following non-clinical tests were conducted: Surgical technique validation. conducted in the same manner as the predicate surgical technique validation."
This indicates that the testing focused on the mechanical and surgical aspects of the physical device, not on diagnostic performance or AI accuracy. The 510(k) process here is about demonstrating "substantial equivalence" of a modified physical device to a predicate device, primarily through non-clinical (e.g., bench) testing and comparison of technological characteristics.
Therefore, the following information points from your request are not present or applicable in this submission:
- A table of acceptance criteria and the reported device performance (in the context of AI).
- Sample size used for the test set and the data provenance.
- Number of experts used to establish the ground truth for the test set and their qualifications.
- Adjudication method for the test set.
- If a multi-reader multi-case (MRMC) comparative effectiveness study was done.
- If a standalone (i.e., algorithm only without human-in-the-loop performance) was done.
- The type of ground truth used (expert consensus, pathology, outcomes data, etc.) for AI.
- The sample size for the training set (for AI).
- How the ground truth for the training set was established (for AI).
§ 888.3080 Intervertebral body fusion device.
(a)
Identification. An intervertebral body fusion device is an implanted single or multiple component spinal device made from a variety of materials, including titanium and polymers. The device is inserted into the intervertebral body space of the cervical or lumbosacral spine, and is intended for intervertebral body fusion.(b)
Classification. (1) Class II (special controls) for intervertebral body fusion devices that contain bone grafting material. The special control is the FDA guidance document entitled “Class II Special Controls Guidance Document: Intervertebral Body Fusion Device.” See § 888.1(e) for the availability of this guidance document.(2) Class III (premarket approval) for intervertebral body fusion devices that include any therapeutic biologic (e.g., bone morphogenic protein). Intervertebral body fusion devices that contain any therapeutic biologic require premarket approval.
(c)
Date premarket approval application (PMA) or notice of product development protocol (PDP) is required. Devices described in paragraph (b)(2) of this section shall have an approved PMA or a declared completed PDP in effect before being placed in commercial distribution.