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CYBERONICS, INC. BIPOL LEAD MODEL 300 Back to Search Results
Model Number 300-20
Event Date 12/12/2014
Event Type  Malfunction  
Event Description

It was reported that during generator replacement surgery on (b)(6) 2014 due to end of service, the vns patient¿s replacement generator was tested with the existing lead and system diagnostics results revealed high impedance. The lead pin was confirmed to be fully inserted into the generator header. Pre-operative diagnostics could not be performed due to the end of service condition. The patient¿s lead was also replaced during the procedure. The explanted devices have been returned to the manufacturer where analysis is currently underway.

Event Description

Analysis of the returned devices was completed. Analysis of the explanted and opened/unused generators concluded that no abnormal performance or any other type of adverse condition was found. The devices performed according to functional specifications. Analysis of the returned lead confirmed discontinuity of negative quadfilar coil in the electrode region. Scanning electron microscopy images of the negative coil show that pitting or electro-etching conditions have occurred at the break location. Due to pitting, mechanical distortion (smoothed surfaces) and/or surface contamination the fracture mechanism cannot be ascertained. The lead assembly has dried remnants of what appear to have once been body fluids inside the inner and the outer silicone tubing. No obvious point of entrance was noted other than the identified tubing openings and the cut ends of the returned lead portions.

Manufacturer Narrative

Device failure is suspected, but did not cause or contribute to a death or serious injury.

Manufacturer Narrative

Device failure occurred, but did not cause or contribute to death or serious injury.

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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 Key4404879
Report Number1644487-2015-03585
Device Sequence Number1
Product CodeLYJ
Report Source Manufacturer
Source Type Health Professional,Company Representative
Type of Report Initial,Followup
Report Date 12/12/2014
1 Device Was Involved in the Event
0 PatientS WERE Involved in the Event:
Date FDA Received01/09/2015
Is This An Adverse Event Report? No
Is This A Product Problem Report? Yes
Device Operator LAY USER/PATIENT
Device EXPIRATION Date09/30/2002
Device MODEL Number300-20
Device LOT Number813
Was Device Available For Evaluation? Device Returned To Manufacturer
Date Returned to Manufacturer12/19/2014
Is The Reporter A Health Professional? Yes
Event Location Other
Date Manufacturer Received01/12/2015
Was Device Evaluated By Manufacturer? Yes
Date Device Manufactured09/19/2000
Is The Device Single Use? Yes
Is this a Reprocessed and Reused Single-Use Device? No
Type of Device Usage Initial