MAUDE Adverse Event Report: CHRISTOPH MIETHKE GMBH & CO KG DUALSWITCH-VALVE 10/30; HYDROCEPHALUS MANAGEMENT

Model Number	FV100T
Medical Device Problem Code	Insufficient Device Problem Information (3190)
Health Effect - Clinical Code	Hydrocephalus (3272)
Date of Event	01/11/2024
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Visual inspection: during the investigation, no significant deformations or damage of the valve were determined.Permeability test: a permeability test has shown that the valve is permeable.Bloody liquid was flushed out computer controlled test: the results show that the valve operates within the accepted tolerances in the vertikal position.Adjustment test: the prosa was tested and is adjustable to all specified pressures.Braking force and brake function test: the brake functionality test has shown that the brake function is fully operational and the braking force is within the given tolerances.Internal inspection: after dismantling of the valve, deposits were found inside.To make the deposits in the valve more visible, they were colored using a staining solution.Result: in advance, we would like to point out that the product sent in was not inserted in liquid at the time of delivery.Dried deposits can influence the function of the products, which can affect the results.Despite this, we have examined the valve.Based on the results of our investigation, we were able to detect deposits on the valve, which did not affect the technical properties at the time of the investigation.At the time of the investigation, we could not determine how the aforementioned clicking noises came about.Proteins in the cerebrospinal fluid can influence the function temporarily and are known side effects in hydrocephalus therapy.We can exclude a defect at the time of release.The valve met all specifications of the final inspection when released from christoph miethke gmbh & co.Kg.No further regulatory actions are required from our point of view.
Event or Problem Description
It was reported that a prosa (#fv100t) was implanted during a procedure performed in 2019.According to the complainant, the valve showed a malfunction and the patient described clicking that he could trigger by moving his neck.The patient underwent a revision procedure performed on (b)(6) 2024.The complainant device has returned to the manufacturer for evaluation.No patient complications were reported as a result of the revision procedure.Age: 36 years; weight: 100 kgs; height: 185 cm; gender: unknown; same event as # 3004721439-2024-00011.

• Brand Name: DUALSWITCH-VALVE 10/30
• 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: 18630721
• Report Number: 3004721439-2024-00012
• Device Sequence Number: 7731648
• Product Code: JXG
• UDI-Device Identifier: 04041906133023
• UDI-Public: 4041906133023
• Combination Product (Y/N): N
• Initial Reporter Country: GM
• PMA/510(K) Number: K110206
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2019
• Device Explanted Year: 2024
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Foreign,User Facility,Company Representative
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial
• Report Date (Section B): 02/02/2024

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
• Device Expiration Date: 07/02/2019
• Device Model Number: FV100T
• Device Catalogue Number: FV100T
• Device Lot Number: 20023579
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 01/15/2024
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 01/15/2024
• Initial Report FDA Received Date: 02/02/2024
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 01/08/2019
• 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: 36 YR
• Patient Sex: Unknown
• Patient Weight: 100 KG