The complaint is being reported by zimmer biomet as (b)(4).The customers reported event was that the device did not work and is considered a complaint out of the box (coob).Review of the device history record for (b)(4), lot number 63452275, identified no deviations or anomalies.Product examination found that the battery pack had ruptured from overheating batteries.The sealed packaging had not been opened.This complaint is confirmed.The reported event claimed that the sealed unit had ruptured before it had been opened.While rare, this kind of event occurs when the batteries overheat from a short circuit.To address this issue, change notice has been implemented to adjust the length of the wires inside the battery pack.This means that there will no longer be a need to tightly fold wires inside the battery pack in order for them to reach their respective circuit contacts.This reduces the risk of a short circuit.However, the root cause cannot be specifically determined with the provided information.
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