Lot number of the suresound not provided by the complainant, therefore the expiration date is not known.The suresound is not being returned therefore, a failure analysis of the complaint device can not be completed.Lot number of the suresound not provided by the complainant, therefore the manufacture date is not known.Device history record (dhr) review could not be conducted for the suresound as a lot number was not provided by the complainant.According to the instructions for use (ifu) adverse events: potential adverse events include, but are not limited to perforation of the uterine wall.Reference internal complaint: (b)(4).
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