MAUDE Adverse Event Report: Christoph Miethke GmbH & Co KG PROGAV 2.0 WITH SHUNTASSISTANT 2.0 25; HYDROCEPHALUS MANAGEMENT

Model Number	FX643T
Medical Device Problem Codes	Infusion or Flow Problem (2964); Physical Resistance/Sticking (4012)
Health Effect - Clinical Code	Hydrocephalus (3272)
Date of Event	08/07/2026
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 all components are permeable.Computer controlled test: to investigate the claim of over-drainage, the opening pressure is measured using a miethke computer controlled testing apparatus which simulates a cerebrospinal fluid flow.The valves are tested in both the horizontal as well as the vertical positions.The results show that the progav 2.0 operates within the accepted tolerance in the horizontal position.The shuntassistant 2.0 does not operate within the specified tolerances in the vertical position.An accelerated outflow of shuntassistant 2.0 was determined.Adjustment test: the progav 2.0 was tested and is not adjustable.Braking force and brake function test: the brake functionality test has shown that the brake function operates as expected.However, the braking force cannot be measured due to the non-adjustability of the valve.Internal inspection: after dismantling of the valves, deposits were found.Results: the investigation showed accelerated outflow of the shuntassisstant 2.0, as well as an inability to adjust the progav 2.0.The visible deposits inside the valves led to the aforementioned functional impairments.Organic matter in the cerebrospinal fluid can influence the function temporarily and are known side effects in hydrocephalus therapy.A defect at the time of release can be excluded.The shunt system 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 progav 2.0 shuntsystem (#fx643t) was implanted on (b)(6) 2021.According to the complainant, the shunt system caused an overdrainage and had adjustment difficulties.The patient underwent a revision procedure on (b)(6) 2026.

• Brand Name: PROGAV 2.0 WITH SHUNTASSISTANT 2.0 25
• 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: 50751988
• Report Number: 3004721439-2026-00263
• Device Sequence Number: 9414751
• Product Code: JXG
• UDI-Device Identifier: 04041906502010
• UDI-Public: (01)04041906502010(17)240822(10)20043454
• Combination Product (Y/N): N
• Initial Reporter Country: GM
• PMA/510(K) Number: K190174
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2021
• Device Explanted Year: 2026
• 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): 09/14/2026

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: 08/22/2024
• Device Model Number: FX643T
• Device Catalogue Number: FX643T
• Device Lot Number: 20043454
• Was Device Available for Evaluation?: Yes
• Date Returned to Manufacturer: 08/21/2026
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 08/21/2026
• Initial Report FDA Received Date: 09/14/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 08/23/2019
• 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: 5 YR
• Patient Sex: Unknown
• Patient Weight: 44 LB