Product event summary: the sheath was returned and analyzed.Visual inspection of the reported sheath 4fc12 lot number 46062 showed the device was intact with no apparent issues.Additionally, air aspiration was reproduced during the pressure test when the test dilator was introduced through the sheath, and it was observed that the hemostatic valve was leaking.It was suspected that the valve disk was torn.In conclusion, the reported issue of air ingress has been confirmed through testing.The reported sheath failed the returned product inspection due to a leaking hemostatic valve.If information is provided in the future, a supplemental report will be issued.
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