MAUDE Adverse Event Report: CHRISTOPH MIETHKE GMBH & CO KG PROGAV SYS PED.W/SA 20 A.PRECHAMBER; HYDROCEPHALUS MANAGEMENT

Model Number	FV441T
Medical Device Problem Code	Infusion or Flow Problem (2964)
Health Effect - Clinical Code	Hydrocephalus (3272)
Date of Event	11/03/2016
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
This complaint was reopened in reference to (b)(4).Manufacturing site evaluation: manufacturing and quality control data the progav® was manufactured by a qualified employee in may 2015.Deviations during assembly did not occur.The valve was sterilized by miethke and released for shipment after final inspection.The progav® has a normal pressure range of 0 to 20 cmh2o.The shunt system was inspected as article fv441t.All parameters have been inspected and approved during the manufacturing process.All parameters have been assessed as meeting specifications.Device examination: the progav® was returned submersed in an unidentified liquid in the provided returnkit.Visual inspection: scratches on the outer housing of the valve were observed through the visual inspection.No significant deformations or damage were detected.The progav® valve housing was subsequently measured and indicated the presence of a deformation.The measured values were slightly out of tolerance.Permeability test: a permeability test has shown that the valve was permeable.Adjustment test: the progav® was tested and was adjustable to all specified pressures.Braking force and brake function test: the brake functionality test has shown that the brake function was fully operational and the braking force was within the given tolerances.Computer controlled test: to investigate over-drainage, the opening pressure was measured using a miethke computer controlled testing apparatus which simulates a cerobrospinal fluid flow.The results showed that the valve operated within the accepted tolerance in the horizontal position.Result: first, a visual inspection of the progav® was performed.No significant deformations or damage to the valve were detected during the visual inspection, but a slight deformation was detected through a measurement of the plane parallelity.Next, the permeability, adjustability, as well as the brake functionally and brake force, of the valve were tested.The valve operates as expected and met all specifications.Finally, the valve was dismantled.A build-up of a substance (likely protein) was observed inside the valve.Based on the investigation, the claim of over-drainage was not able to be substantiated.At the time of the investigation, the opening pressure of the valve was within the specified tolerances.However, it is possible that the deposits observed inside the valve could have led to the reported event.Deposits caused by natural substances in the cerebrospinal fluid, such as protein, blood or tissue particles, are among the known and unavoidable risks and side effects of hydrocephalus therapy.Manufacturing defects at the time of release have been excluded.The valve met all specifications of the final inspection when released from christoph miethke gmbh & co.Kg.No further regulatory actions are required.
Event or Problem Description
It was reported miethke that a progav sys ped.W/sa 20 a.Prechamber (part # fv441t) was implanted during a procedure performed on an unknown date.According to the complainant, the valve was believed to be operating in over-drainage.The patient underwent a revision procedure on (b)(6) 2016.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 SYS PED.W/SA 20 A.PRECHAMBER
• Common Device Name: HYDROCEPHALUS MANAGEMENT
• Manufacturer (Section D): CHRISTOPH MIETHKE GMBH & CO KG; ulanenweg 2; potsdam, 14469 ; GM 14469
• MDR Report Key: 12490047
• Report Number: 3004721439-2021-00658
• Device Sequence Number: 11611076
• Product Code: JXG
• UDI-Device Identifier: 04041906132545
• UDI-Public: 4041906132545
• Combination Product (Y/N): N
• Initial Reporter Country: GM
• PMA/510(K) Number: K103003
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Explanted Year: 2016
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: company representative,foreig
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 09/17/2021

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: FV441T
• Device Catalogue Number: FV441T
• Device Lot Number: 20023176
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 11/10/2016
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 11/11/2016
• Initial Report FDA Received Date: 09/17/2021
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Required Intervention
• Patient Age: 2 YR