Root cause: the investigation identified the root cause as a use error in the placement of the probe.The probe is intended to be placed in the esophagus, but it is not intended to go into the stomach.Corrective action: a corrective action has not been taken.Investigation summary.An internal complaint ((b)(4)) was received indicating that a general purpose temperature probe (part number 81-020409eu, lot 44557628) was inserted through a patient's esophagus into the stomach where it was surgically stapled.The patient underwent a second surgery to remove the probe.A sample was not available for return; therefore, a visual inspection and evaluation could not be performed.The work order was reviewed for discrepancies that may have contributed to the reported event.No discrepancies were identified.The drawing was reviewed and it was confirmed the probe tubing was within the specified length.Additionally, incoming inspection documents of the tubing used in production of the reported lot confirmed that all total length results were within specification.Additionally, deroyal offers general purpose temperature probes with printed depth markings on the tubing that are placed every 5 centimeters.The instructions for use state the probe is intended to be placed in the nasal or nasopharynx cavities, into the esophagus, or into the rectum.Additionally, it states, to verify proper placement of a probe used in the esophagus, a laryngoscope should be used.A two-year review of complaints was completed and no similar events have been reported.Preventive action: a corporate corrective and preventive action ((b)(4)) has been opened to evaluate if all general purpose probes should show depth markings on the tubing.The investigation is complete at this time.If new and critical information is received, this report will be updated.
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