FDA Adverse Event Malfunction Summary report: N

PATIENT INTERFACE 8253200 RESPONSE 3.0

MDR report key: 3011136 · Received March 14, 2013

Report

Report Number
1045254-2013-00275
Event Type
Malfunction
Date Received
March 14, 2013
Report Date
February 13, 2012
Manufacturer
MEDTRONIC XOMED, INC.
Product Code
ETN
PMA / PMN Number
K024316
Product Problem
Yes
Report Source
Manufacturer report
Reporter Location
IA, US
Reporter Occupation
HEALTH PROFESSIONAL

Narratives

Additional Manufacturer Narrative · 1

TESTING/REPAIR CONFIRMED THE REPORTED EVENT AND FOUND A SHORT CIRCUIT IN THE CABLE AND PCB FAILURE. THE NIM SYSTEM IS INTENDED FOR USE TO MONITOR SENSORY AND MOTOR PATHWAYS. IF THE SYSTEM FAILS TO PERFORM AN INTENDED, (ESPECIALLY TO EFFECT OR DETECTED ELECTROMYOGRAPHIC (EMG) ACTIVITY) IT PRESENTS THE POTENTIAL FOR TEMPORARY OR PERMANENT DAMAGE TO THE NERVE THAT IS PRESENT. WHEN INFO SUGGESTS THAT THE NIM EQUIPMENT HAD THE POTENTIAL TO NOT STIMULATE TO AFFECT ELECTROMYOGRAPHY (EMG), OR TO DETECT EMG, IT IS ASSUMED THAT THE FAILURE WAS DEVICE-RELATED AND MAY HAVE GONE UNDETECTED. IN THIS CASE, THERE IS NO INFO TO SUGGEST AN EVENT COULD NOT BE INTERPRETED FALSELY. THEREFORE, WITHOUT INFO TO REASONABLY SUGGEST SERIOUS INJURY, OR THAT MEDICAL INTERVENTION WAS REQUIRED TO PRECLUDE SERIOUS INJURY, WE ARE FILING THIS REPORT AS A PRODUCT PROBLEM. THE PT INTERFACE AND CABLE PROVIDE THE MEANS FOR CARRYING ELECTROMYOGRAPHIC ACTIVITY FROM THE PT'S INNERVATED MUSCLES TO THE CONSOLE, AN INTERFACE FOR CARRYING STIMULATION SIGNALS FROM THE CONSOLE TO THE STIMULATING PROBES/ELECTRODES, AND AN INTERFACE TO THE CONSOLE FROM THE INCREMENTING PROBE. THIS PRODUCT WAS BEING USED FOR TREATMENT, NOT DIAGNOSIS.

Description of Event or Problem · 1

THE MFR HAS REFINED THE CRITERIA FOR MAKING MDR DECISIONS. UPON A RETROSPECTIVE REVIEW, THE FOLLOWING EVENT IS NOW BELIEVED TO BE REPORTABLE. A CUSTOMER REPORTED THAT DURING "A THYROID CASE. A CUSTOMER RETURNED A NIM-PATIENT INTERFACE 2.0 STATING "NOT WORKING." THERE WAS NO SUGGESTION OF PT INJURY OR INVOLVEMENT. TESTING/REPAIR CONFIRMED THE REPORTED EVENT AND FOUND A SHORT CIRCUIT IN THE CABLE AND PCB FAILURE. A SHORT CIRCUIT IN THE PT INTERFACE, WHICH CAN GO UNDETECTED, HAS BEEN KNOWN TO AFFECT THE DELIVERY OF STIMULUS CURRENT AND HAS THE POTENTIAL TO CAUSE OR CONTRIBUTE TO PT INJURY (LOSS OF STIMULATION DURING USE LEADING TO A FALSE NEGATIVE). COMBINED WITH A MAIN PCB FAILURE THIS SUDDEN FAILURE IS NOT CONSISTENTLY ACCOMPANIED BY WARNING/ERROR MESSAGES DURING A PROCEDURE. AT THIS TIME WE ARE UNABLE TO CONFIRM WHETHER THE CUSTOMER RECEIVED ANY ERROR MESSAGES OR ALERTS OF THE FAULT. THIS REPORTED EVENT HAS NO REFERENCE TO AN ALARM OR WARNING, THEREFORE, IT MUST BE ASSUMED THAT AN ALARM OR WARNING WENT UNDETECTED OR DID NOT OCCUR.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
108361 PATIENT INTERFACE 8253200 RESPONSE 3.0 ETN - STIMULATOR, NERVE ETN MEDTRONIC XOMED, INC. 8253200 72910200

Patients

Seq Age Sex Outcome Treatment
1