The product was returned for evaluation.Based on the evaluation, the complaint was confirmed.The most-likely, underlying cause was determined to be due to deflection of the material during tooling (manufacturing process).In the evaluation, the implant was functionally tested by moving the outer plate up and down along the post.During this test it was found that the outer plate became difficult to move in one section of the post.The post was evaluated and it was found that the threads causing the outer plate to stick were wider than the other threads.It was found that the major and minor diameters were too large.The device history records were reviewed and no-non-conformances were noted.
|