(b)(4).The dhr for lot 4160 was reviewed.No ncs, reworks, or defects related to the product complaint were found.Additional information requested and received: clarification is needed.It was reported that 2 beads migrated into the esophagus.Were there 2 beads that ¿eroded¿ into the esophagus as migration is when the entire device moves out of place? was the clasp closed? the device was placed on the right place.2 beats were migrated into the oesophagus.The clasp was closed.Patient wanted to keep device.Device not available to return.
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