MAUDE Adverse Event Report: CHRISTOPH MIETHKE GMBH & CO KG PROGAV WITH SHUNTASSISTANT 25; HYDROCEPHALUS MANAGEMENT

Model Number FV414T

Device Problems Mechanical Problem (1384); Infusion or Flow Problem (2964)

Patient Problem Hydrocephalus (3272)

Event Type  Injury  

Manufacturer Narrative

Visual inspection: during the visual inspection a deformation of the outer housing of the progav valve could be determined.The measurement of the plane parallelism could confirm that with a value of -0,072 mm - outside tolerance (0 ± 0.02 mm).Permeability test: a permeability test has shown that all components are 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 valves are tested in both the horizontal as well as the vertical positions.The results show that the progav is operating not within the accepted tolerance in the horizontal position.The shuntassistant is operating within the specified tolerances in the vertical position.An accelerated outflow of progav could be determined.Adjustment test: the progav was tested and is not adjustable.Braking force and brake function test: the brake functionality test has shown that the brake function is operational; 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 in both valves.To make the proteins / deposits in the shunt system more visible, they were colored using a staining solution.Results: based on our investigation results, we can determine an accelerated outflow and adjustment difficulties at the progav.The determined deposits can be named as the cause for the functional deviation.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 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 Description

It was reported that a progav shunt system (#fv414t) was implanted during a procedure performed on unknown.According to the complainant, the shunt showed an under-drainage and adjustment problems.The patient underwent a revision procedure performed on unknown.The complainant device has returned to the manufacturer for evaluation.No patient complications were reported as a result of the revision procedure.Age: 2 years.Weight: 8 kgs.Height: 73 cm.Gender: male.

• Brand Name: PROGAV WITH SHUNTASSISTANT 25
• Type of Device: 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: 18311925
• MDR Text Key: 330292871
• Report Number: 3004721439-2023-00365
• Device Sequence Number: 1
• Product Code: JXG
• UDI-Device Identifier: 04041906132118
• UDI-Public: 4041906132118
• Combination Product (y/n): N
• Reporter Country Code: GM
• PMA/PMN Number: K103003
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Foreign,User Facility,Company Representative
• Reporter Occupation: Other Health Care Professional
• Type of Report: Initial
• Report Date: 12/12/2023

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 Model Number: FV414T
• Device Catalogue Number: FV414T
• Device Lot Number: 20059542
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 11/14/2023
• Is the Reporter a Health Professional?: Yes
• Initial Date Manufacturer Received: 11/14/2023
• Initial Date FDA Received: 12/12/2023
• Was Device Evaluated by Manufacturer?: Yes
• Date Device Manufactured: 05/31/2022
• Is the Device Single Use?: Yes
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Initial
• Patient Sequence Number: 1
• Patient Outcome(s): Required Intervention; Required Intervention
• Patient Age: 24 MO
• Patient Sex: Male
• Patient Weight: 8 KG