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CYBERONICS, INC. LEAD MODEL 302 Back to Search Results
Model Number 302-20
Event Date 02/01/2014
Event Type  Malfunction  
Event Description

It was reported that x-rays were performed because the patient's device was not working. X-rays were sent to manufacturer for review. Review of the x-rays did not identify any obvious discontinuities with the vns system; however, the presence of a microfracture could not be ruled out. Further follow-up with the physician identified that high impedance (dc dc code - 7) was observed. It was reported that the patient had complained of discomfort and burning at the back of the throat. It was reported that device frequency was reduced from 25hz to 20hz for the discomfort. The patient reported that the discomfort and burning began approximately two months prior and occurs with device stimulation. The patient mentioned that the pain and burning worsens when moving the head from side to side. The patient denied and trauma that may have caused or contributed to the high impedance. The physician reported that the device was programmed off and the patient would be referred for surgical consult. No surgical intervention has been performed to date.

Event Description

An implant card was received indicating that the patient underwent generator and lead replacement due to lead discontinuity and battery depletion. It was reported that the explanted devices were sent to pathology and disposed of. No product analysis can be performed.

Manufacturer Narrative

Device manufacturing records were reviewed. Review of manufacturing records of the lead confirmed all quality tests were passed prior to distribution. Device failure is suspected, but did not cause or contribute to a death or serious injury.

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Brand NameLEAD MODEL 302
Type of DeviceLEAD
Manufacturer (Section D)
100 cyberonics blvd
houston TX 77058 770
Manufacturer (Section G)
100 cyberonics blvd
suite 600
houston TX 77058
Manufacturer Contact
njemile crawley
100 cyberonics blvd
suite 600
houston , TX 77058
MDR Report Key3782517
Report Number1644487-2014-01151
Device Sequence Number1
Product CodeMUZ
Report Source Manufacturer
Source Type Health Professional,Company Representative
Reporter Occupation
Type of Report Initial,Followup
Report Date 04/02/2014
1 Device Was Involved in the Event
1 Patient Was Involved in the Event
Date FDA Received04/30/2014
Is This An Adverse Event Report? Yes
Is This A Product Problem Report? Yes
Device Operator LAY USER/PATIENT
Device EXPIRATION Date01/31/2009
Device MODEL Number302-20
Device LOT Number1527
Was Device Available For Evaluation? No
Is The Reporter A Health Professional? Yes
Event Location Other
Date Manufacturer Received06/09/2014
Was Device Evaluated By Manufacturer? Device Not Returned To Manufacturer
Date Device Manufactured01/10/2006
Is The Device Single Use? Yes
Is this a Reprocessed and Reused Single-Use Device? No
Type of Device Usage Initial

Date Received: 04/30/2014 Patient Sequence Number: 1