MAUDE Adverse Event Report: CHRISTOPH MIETHKE GMBH & CO KG SHUNTASSISTANT 20; HYDROCEPHALUS MANAGEMENT

Model Number	FV251T
Medical Device Problem Code	Infusion or Flow Problem (2964)
Health Effect - Clinical Code	Hydrocephalus (3272)
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that a shunt assistant (part # fv251t) was implanted during a procedure performed on an unknown date.According to the complainant, the shunt system was believed to be operated in underdrainage.The patient underwent a revision procedure performed on an unknown date.The complaint device was returned to the manufacturer for evaluation.No patient complications were reported as a result of the revision procedure.Age: (b)(6).Height: 150 centimeters (cm).Weight: (b)(6).Gender: male.Same event as medwatch mdr id 3004721439-2022-00110.
Additional Manufacturer Narrative
Investigation: visual inspection: no significant deformations or damage of the valve were detected during the visual inspection.Permeability test: a permeability test has shown that the valve is permeable.Computer controlled test: to investigate the claim of under-drainage, the opening pressure is measured using a miethke computer controlled testing apparatus which simulates a cerebrospinal fluid flow.The results show that the valve operate within the accepted tolerance in the vertical position.Internal inspection: after dismantling of the valve, deposits were found in shunt assistant.Results: based on our investigation, we can determine deposits in the shunt assistant.The deposits do not affect the technical properties at the time of the investigation.How the mentioned functional impairment occurred is not clear to us at the time of the investigation.As described in scientific literature, the problem encountered is one of the known, inevitable risks of hc-therapy by shunt implants.We can exclude a defect at the time of release.The valve met all specifications of the final inspection when released from (b)(4) kg.No further regulatory actions are required from our point of view.

• Brand Name: SHUNTASSISTANT 20
• Common Device Name: HYDROCEPHALUS MANAGEMENT
• Manufacturer (Section D): CHRISTOPH MIETHKE GMBH & CO KG; ulanenweg 2; potsdam, 14469 ; GM 14469
• Manufacturer (Section G): CHRISTOPH MIETHKE GMBH & CO KG; ulanenweg 2; potsdam, 14469 ; GM 14469
• Manufacturer Contact: joerg knebel ; ulanenweg 2; potsdam, 14469 ; GM 14469
• MDR Report Key: 14141224
• Report Number: 3004721439-2022-00111
• Device Sequence Number: 14526505
• Product Code: JXG
• UDI-Device Identifier: 04041906113209
• UDI-Public: 4041906113209
• Combination Product (Y/N): N
• Initial Reporter Country: GM
• PMA/510(K) Number: K110206
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: User Facility,Company Representative
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial
• Report Date (Section B): 04/19/2022

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: 06/30/2020
• Device Model Number: FV251T
• Device Catalogue Number: FV251T
• Device Lot Number: 20027530
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 03/24/2022
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 03/24/2022
• Initial Report FDA Received Date: 04/19/2022
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 08/14/2015
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Required Intervention
• Patient Age: 12 YR
• Patient Sex: Male
• Patient Weight: 45 KG