The device was in use for treatment.There are twenty-eight complaints related to this extension cable from the same end user.Of the twenty-eight cable reported events, only ten cables were returned to perform an analysis.As the lot number of any cables was not available, it cannot be determined which cable was used in each reported event.The analysis revealed that ten xi.Mdt extension cables were returned from the customer.There were no other accessories.No visible blood was found anywhere on the extension cables.Six black connectors were detached and five red connectors were detached.Due to the condition in which the cables were returned, all cables and detached connectors in one plastic bag, it is impossible to determine which cables go with what connectors.Cable 1: cable returned with red connector separated from device.The resistance through the black connector was not stable and could not be confirmed.After removing strain relief it was found that the black connector is still attached to the wire.The solder joint on the black connector was not completely filled.The red connector separated due to wire break near solder joint.Cable 2.Cable returned with red connector separated from device.The resistance through the black connector is within specification.After removing strain relief it was found that the black connector is still attached to the wire.The solder joint on the black connector was completely filled.The red connector separated due to wire break near solder joint.Cable 3.Cable returned with red connector separated from device.The resistance through the black connector is within specification.After removing strain relief it was found that the black connector is still attached to the wire.The solder joint on the black connector was completely filled.The red connector separated due to wire break near solder joint.Cable 4.Cable returned with red connector separated from device.The resistance through the black connector is within specification.After removing strain relief it was found that the black connector is still attached to the wire.The solder joint on the black connector was not completely filled.The wire connected to the black connector has broken wire strands and nearing failure.The red connector separated due to wire break near solder joint.Cable 5.Cable returned with black connector separated from device.The resistance through the red connector is within specification.After removing strain relief it was found that the red connector is still attached to the wire.The solder joint on the red connector was not completely filled.The black connector separated due to wire break near solder joint.Cable 6.Cable returned with black connector separated from device.The resistance through the red connector is within specification.After removing strain relief it was found that the red connector is still attached to the wire.The solder joint on the red connector was completely filled.The wire connected to the red connector has broken wire strands and nearing failure.The black connector separated due to wire break near solder joint.Cable 7.Cable returned with black connector separated from device.The resistance through the red connector is within specification.After removing strain relief it was found that the red connector is still attached to the wire.The solder joint on the red connector was completely filled.The wire connected to the red connector has broken wire strands and nearing failure.The black connector separated due to wire break near solder joint.Cable 8.Cable returned with black connector separated from device.The resistance through the red connector is within specification.After removing strain relief it was found that the red connector is still attached to the wire.The solder joint on the red connector was completely filled.The black connector separated due to wire break near solder joint.Cable 9.Cable returned with black connector separated from device.The resistance through the red connector is within specification.After removing strain relief it was found that the red connector is still attached to the wire.The solder joint on the red connector was completely filled.The black connector separated due to wire break near solder joint.Cable 10.Cable returned with black connector separated from device.The resistance through the red connector is within specification.After removing strain relief it was found that the red connector is still attached to the wire.The solder joint on the red connector was completely filled.The wire connected to the red connector has broken wire strands and nearing failure.The black connector separated due to wire break near solder joint.Conclusion: all cables were returned with one of the two connectors detached and separated from the device.The connectors still attached to the cable are all below the 1 ohm max for resistance through the cable.The failure is occurring at the exposed portion of the wire that is soldered to the pin.Mechanical forces applied to this area of exposed wire is causing the exposed wire to weaken and eventually break.A corrective and preventive action has been initiated to address this failure.Associated mdrs: 1035166-2016-00036 to 1035166-2016-00063 inclusive.
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