(b)(4).The rt021 catheter mount is sold in the usa but has no 510(k) number as it is considered a class i device.Method: only two complaint rt021 catheter mounts were returned to fph in (b)(4) for investigation, where they were visually inspected.Results: visual inspection of both devices revealed that the tubing at the swivel end had split.Conclusion: we were unable to determine the cause of the damaged observed on the returned rt021 catheter mounts.All rt021 catheter mounts are pressure tested prior to release for distribution.Any catheter mount with a split tube would have failed the pressure test and be rejected from the production line.This suggests that the returned catheter mounts were damaged after they were released for distribution.Our user instructions that accompany the rt021 catheter mount state the following: check all connections are tight before use.Perform a pressure and leak test on the breathing system and check for occlusions before connecting to a patient.
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