Corrected udi: device was made prior to compliance date, (b)(4).Upon completion of the investigation it was noted that the images were taken of the ¿as received¿ valve.The valve was visually inspected; no defects were noted.The position of the cam when valve was received was 150 mmh2o.The valve was hydrated.The valve was tested for programming with programmer 82-3126 with serial (b)(4) and programmer 82-3190 with serial (b)(4), the valve failed the test, the cam mechanism did not move during the programming process.The valve was flushed, the valve passed the test no occlusion was noted.The valve was leak tested, leaked from the needle holes.The valve was reflux tested.The valve failed the test.The valve was dried.The valve was then pressure tested at a 150 mmh20, the valve failed.The valve was dismantled and was examined under microscope at appropriate magnification: biological debris was found on the spring, on the ruby ball, on the seat of the ruby ball, and on the cam mechanism.The cam magnets were also controlled.The magnets failed.The magnets polarity was controlled failed all magnets were on ( - ).Review of the history device records for the valve product code 0147csd with lot chmbn1 conformed to the specifications when released to stock on the 29th october 2007.The abnormal polarization of the valve was probably caused by an exposition of a too strong magnetic field.Further details in chpv mri testing conducted.Based on the results of this investigation no further action is required.Trends will be monitored for this and similar complaints.At the present time this complaint is closed.
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