MAUDE Adverse Event Report: CHRISTOPH MIETHKE GMBH & CO KG PROGAV 2.0 SYS SA2.0 25 & PED.PRECHAMBER; HYDROCEPHALUS MANAGEMENT

Model Number	FX597T
Medical Device Problem Code	Mechanical Problem (1384)
Health Effect - Clinical Code	Hydrocephalus (3272)
Date of Event	07/26/2022
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Investigation: visual inspection: no significant deformations or damage of the valves were detected during the visual inspection.Permeability test: a permeability test has shown that both valves are permeable.Computer controlled test: to investigate the claim of over/under-drainage, the opening pressure is measured using a miethke computer controlled testing apparatus which simulates a cerebrospinal fluid flow.The valves were tested in both the horizontal as well as the vertical position.The results show that the progav 2.0 is operating not within the accepted tolerance in the horizontal position.The shuntassistant 2.0 is operating within the specified tolerances in the vertical position.Adjustment test: the progav 2.0 was tested and could be adjusted in all pressure ranges.Initially, the adjustment was difficult, but after a few attempts it was possible again without any problems.Braking force and brake function test: the brake function operates as expected.However, the breaking force required was not within the specified tolerances.Internal inspection: after opening the valves, deposits could be detected in the progav 2.0 and the shuntassistant 2.0.Results: based on our examination results, we can determine a sluggish adjustability, an increased click force and an accelerated outflow at the time of our examination on the shunt system.The cause of the malfunctions can be identified as the deposits found.Deposits caused by substances naturally present in the body, such as protein, blood or tissue particles, are among the known and unavoidable risks and side effects of hydrocephalus therapy.Even small amounts of protein can compromise the integrity of the valve.We can exclude a defect at the time of release.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 shunt system (part # fx597t) was implanted during a procedure performed on an unknown date.According to the complainant, the shunt system was believed to be have adjustment difficulties.The patient underwent a revision procedure performed on (b)(6) 2022.The complaint device was returned to the manufacturer for evaluation.No patient complications were reported as a result of the revision procedure.

• Brand Name: PROGAV 2.0 SYS SA2.0 25 & PED.PRECHAMBER
• 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: 15306610
• Report Number: 3004721439-2022-00254
• Device Sequence Number: 5374550
• Product Code: JXG
• UDI-Device Identifier: 04041906503543
• UDI-Public: 4041906503543
• 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 Explanted Year: 2022
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: User Facility,Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 08/26/2022

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 Model Number: FX597T
• Device Catalogue Number: FX597T
• Device Lot Number: 20037337
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 07/28/2022
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 07/28/2022
• Initial Report FDA Received Date: 08/26/2022
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 04/05/2018
• 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: 3 YR
• Patient Sex: Unknown