During the operation, syringes black threads or particles always flow into the eye directly at the beginning [foreign body in eye] some of the syringes there are black threads or particles [device use issue] case narrative: case (b)(4) is a serious spontaneous case received from other healthcare professional in germany.This report concerns a patient (no patient identifiers reported) of unknown age and gender who experienced the presence of black threads or particles in some of the biolon prime syringes and during operation, syringes black threads or particles always flow into the eye directly at the beginning during treatment with biolon prime (sodium hyaluronate) 12 mg/ml solution for injection, with an unknown dose and route of administration, for an unspecified indication from an unknown start date to an unknown stop date.Lot number: u14998aa and expiration date: oct-2025.It was reported that some biolon prime syringes contained black threads or particles.During the operation, these consistently flowed directly into the eye at the beginning, with the first input.The doctor had to bring the patient back to the operating room (or) several days after the lens implantation because a thread had been left in the eye, obstructing the patient's field of view, and needed to be removed.The doctors had several times mentioned about particles and threads to the reporter but had been unable to show it or capture any of the particles.On (b)(6) 2024, the reporter attended the operating room and observed that they were able to take a photo and save the syringe.The some of the syringes there are black threads or particles and during operation, syringes black threads or particles always flow into the eye directly at the beginning was medically significant.Manufacturer's preliminary comments: a.~for initial and follow-up reports: preliminary results and conclusions of manufacturer's investigation: investigation was started according to initial information received from complaint reporter (nordic pharma distributer) and logged in as complaint qr #(b)(4) in trackwise.Since the investigation is on-going and elementary data is missing, no conclusion can be established yet.The reporter was contacted several times in order to receive the required information to complete the investigation and to achieve preliminary results.B.~initial actions (corrective and/or preventive) implemented by the manufacturer: elementary data is missing to evaluate the case impact, upon receiving of further information and/or preliminary investigation conclusion initial action will be defined.C.~what further investigations do you intend in view of reaching final conclusions? testing of lot retention samples, batch record review, re-occurrence, trending, etc.Cause investigation and conclusion: results of the assessment: according to 'euflexxa and biolon product family hazard master list' (btg-val-030609) this event, taking into consideration worst case scenario, is classified as s3.Action taken to biolon was unknown.No concomitant medication was reported.At the time of reporting the case outcome was unknown.Overall listedness (core label) is unlisted.Reporter causality: related.Company causality: related.Other case numbers: internal # - others = cn (b)(4).Internal # - others = #(b)(4).This ae occurred in germany (eu) and concerns the medical device biolon prime.Please report to your local health authority if required by local law.No corrective action was done by the manufacturer or requested by regulators.
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