MAUDE Adverse Event Report: MEDTRONIC NEUROSURGERY STRATA II VALVE, SMALL; SHUNT, CENTRAL NERVOUS SYSTEM AND COMPONENTS

Model Number	42856
Medical Device Problem Codes	Device Operates Differently Than Expected (2913); Mechanics Altered (2984)
Health Effect - Clinical Code	No Known Impact Or Consequence To Patient (2692)
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
If information is provided in the future, a supplemental report will be issued.
Event or Problem Description
It was reported that the device was explanted on (b)(6) 2018.There was no known impact or consequence to the patient.
Additional Manufacturer Narrative
The returned valve was patent.The valve met the requirements for siphon, and leak testing.However, the valve did not meet the requirements for reflux, pressure-flow, and pre-implantation testing.There was proteinaceous debris noted within the interior and exterior of the valve.Debris within the valve may hold pressure-flow controlling mechanisms open affecting the flow of fluid through the valve and resulting in fluid reflux.The instructions for use (ifu) that accompany the device caution that ¿shunt obstruction may occur in any of the components of the shunt system.The system may become occluded internally due to tissue fragments, blood clots, tumor cell aggregates, bacterial colonization, or other debris.¿ all valves are 100% tested at the time of manufacture.If information is provided in the future, a supplemental report will be issued.
Event or Problem Description
Additional information received reported the device was not functioning properly.
Additional Manufacturer Narrative
All performance levels could be set with a single attempt, and the valve did not spontaneously change levels during the course of analysis.Therefore the conditions of this complaint could not be verified by laboratory personnel.If information is provided in the future, a supplemental report will be issued.
Event or Problem Description
Additional information received reported it was thought that the valve setting was changing on its own.

• Brand Name: STRATA II VALVE, SMALL
• Common Device Name: SHUNT, CENTRAL NERVOUS SYSTEM AND COMPONENTS
• Manufacturer (Section D): MEDTRONIC NEUROSURGERY; 125 cremona drive; goleta CA 93117
• MDR Report Key: 7385806
• Report Number: 2021898-2018-00174
• Device Sequence Number: 1470764
• Product Code: JXG
• UDI-Device Identifier: 00613994804631
• UDI-Public: 00613994804631
• Combination Product (Y/N): N
• Initial Reporter State: MA
• Initial Reporter Country: US
• PMA/510(K) Number: K042465
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2017
• Device Explanted Year: 2018
• Reporter Type: Manufacturer
• Report Source: health professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup,Followup
• Report Date (Section B): 05/09/2018

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Expiration Date: 12/31/2019
• Device Model Number: 42856
• Device Catalogue Number: 42856
• Device Lot Number: E26247
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 04/12/2018
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 03/03/2018
• Supplement Date Received by Manufacturer: 05/01/2018; 05/01/2018
• Initial Report FDA Received Date: 03/30/2018
• Supplement Report FDA Received Date: 05/09/2018; 05/09/2018
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Hospitalization; Required Intervention
• Patient Age: 5 MO