MAUDE Adverse Event Report: RICHARD WOLF GMBH FIBER-URETERORENOSKOP 9,6CH NL 680MM; FIBER-URETERORENOSCOPE 9.6FR WL 680MM FLEXIBLE

Model Number 7325071

Device Problem Optical Problem (3001)

Patient Problem No Clinical Signs, Symptoms or Conditions (4582)

Event Date 10/11/2020

Event Type  malfunction  

Manufacturer Narrative

The present 7325071 fiber-ureterorenoscope 9.6ch nl 680mm with sn (b)(4) has been tested in the responsible department.It was found that the objective lens is dirty.The cause is due to a user error.The 7325071 fiber-ureterorenoscope 9,6ch nl 680mm with sn (b)(4) was booked into stock on 02.07.2020.With the corresponding production order 1447883, a total of (b)(4) units of the 7325071 fiber-ureterorenoscope 9.6ch nl 680mm were manufactured.To the customer on 08.07.20 7325071 fiber-ureterorenoscope 9,6ch nl 680mm with sn (b)(4) was delivered to the customer.The 7325071 fiber-ureterorenoscope 9,6ch nl 680mm is in the sales program of richard wolf since 29.04.2005.The complaint database was checked in the period from 01.01.2017 to 02.11.2020.Of the 7325071 fiber-ureterorenoscope 9,6ch nl 680mm, 384 units were sold during this period.There was no comparable complaint of the 7325071 fiber-ureterorenoscope 9,6ch nl 680mm during the investigation period.The device is worn with use.A long service life of the scope can be attained if the scope is always handled with care and reprocessed according to the instructions in the ifu.In the instructions for use ga-d347the user is instructed to check the device before and after each use and after each reprocessing.The instructions for use contains instructions on how to prepare the devices for safe and effective use.Preparation: check assembly.Carry out a check.Image quality: caution! increased risk potential if the image is blurred! danger of injuring the patient.Stop the intervention for safety reasons if the image is blurred.Check the image quality of the endoscope before use.Lithotripsy application: caution! do not work outside the field of view.Danger of perforating the ureter! always keep the tip of the probe within the field of view to avoid mechanical perforation.8 checks caution! be careful if products are damaged or incomplete! injuries of the patient, user or others are possible.Run through the checks before and after each use.Do not use the products if they are damaged, incomplete or have loose parts.Return damaged products together with any loose parts for repair.Do not attempt to do any repairs yourself.The instructions for use, in addition to instructions to carry out a visual and functional check before and after use, the instructions for use contains specific instructions to check the image quality before use.Check image quality and light output in conjunction with the system components.Check the glass surfaces for any deposits.Deposits on the glass surfaces can cause a spotted or blurred field of view and hence impair light transmission considerably.Wipe the glass surfaces with a swab soaked with alcohol (wooden swab carrier, not metal or plastic), remove hard-to-remove deposits with instrument cleaner.Check the light output without the system components.Adequate instructions regarding cleaning, disinfecting, sterilizing and storing the product is contained in the instructions for use.The surgeon completed the operation successfully using the scope subject to the complaint.According to the filled out questionnaire returned by the customer, there was no patient harm and no significant delay in procedure.Possible hazards were considered in the risk assessment a3-2 with the corresponding extent of damage and probability of occurrence and assessed with an acceptable risk.This assessment is still valid even taking into account the current case.As this was a clear user error, there was no product- or production-related failure, no adverse effects on patients, users, or third parties, there is no systemic issue related to the product or its manufacture and the instructions for use contain adequate warnings and cautions related to the reported issue in this case, no further investigation or action is warranted.From our point of view, this is a user error, as the visual and functional checks were not or only partially carried out.There are no signs of a production or manufacturing defect.Richard wolf gmbh (rwgmbh) considers this matter closed.However, in the event rwgmbh receives any additional information a follow up report will be submitted to fda.Richard wolf medical instruments corporation (rwmic) is submitting this report on behalf of rwgmbh.

Event Description

This fiber ureterorenoscope s/n:(b)(4) was delivered to the customer for a few months, then the customer used it without any problems until the incident on (b)(6) 2020.The doctor had completed the first patient treatment and then started the second treatment of another patient.He could not complete this treatment, but suddenly the display image on the monitor was completely blurred.A second time was necessary to remove the stone.They had a regular appointment for health control between the patient and the health care institution.There was no danger to the patient.

• Brand Name: FIBER-URETERORENOSKOP 9,6CH NL 680MM
• Type of Device: FIBER-URETERORENOSCOPE 9.6FR WL 680MM FLEXIBLE
• Manufacturer (Section D): RICHARD WOLF GMBH; pforzheimer street 32; knittlingen, 75438 ; GM 75438
• Manufacturer (Section G): RICHARD WOLF GMBH; pforzheimer street 32; knittlingen, 75438 ; GM 75438
• Manufacturer Contact: heiko seider-biedermann ; pforzheimer street 32; knittlingen, 75438 ; GM 75438
• MDR Report Key: 10830284
• MDR Text Key: 252819386
• Report Number: 9611102-2020-00025
• Device Sequence Number: 1
• Product Code: FGB
• UDI-Device Identifier: 04055207013694
• UDI-Public: 04055207013694
• Combination Product (y/n): N
• Reporter Country Code: CB
• PMA/PMN Number: K980401
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: foreign,health professional,u
• Reporter Occupation: Biomedical Engineer
• Remedial Action: Replace
• Type of Report: Initial
• Report Date: 11/11/2020

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Model Number: 7325071
• Device Catalogue Number: 7325071
• Was Device Available for Evaluation?: Yes
• Is the Reporter a Health Professional?: Yes
• Initial Date Manufacturer Received: 11/11/2020
• Initial Date FDA Received: 11/12/2020
• Was Device Evaluated by Manufacturer?: No
• Date Device Manufactured: 07/02/2020
• Is the Device Single Use?: No
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Reuse
• Patient Sequence Number: 1