MAUDE Adverse Event Report: RICHARD WOLF GMBH S-LINE; WORKING ELEMENT PASSIVE BIPO

Model Number 8680.224

Device Problem Unintended Electrical Shock (4018)

Patient Problem Electric Shock (2554)

Event Date 05/05/2021

Event Type  malfunction  

Manufacturer Narrative

(b)(4).Rw (b)(4) is in the process of investigating this complaint; the instrument is currently being evaluated.A follow up report will be submitted with the investigation results.

Event Description

The user described the incident as follows: "patient received electric shocks during surgery, surgery had to be stopped." richard wolf (b)(4) complaint reference (b)(4).

Manufacturer Narrative

Follow-up report #1 is to provide fda with results of the device investigation/evaluation and missing information, new information, or/and changed information.New information: the following fields have new information: b4, b5, g2, g6, h2, h6, h10.Changed information: the following field has changed information: h3.The 8680224 working element passive bipo 0/12/30° comes from the batch 1376398 and was delivered to the customer on (b)(6) 2018.The working element, type 8680224 was inspected according to the inspection instructions in the responsible technical department vkwi.No functional defect was found.We attribute the cause to a user error.The period (b)(6) 2018 to (b)(6) 2021 was subjected to a closer examination of the complaints database.During this period, (b)(4) working elements passiv bipo 0/12/30°, type 8680224 were sold.During the period under review, there were no similar cases, there are no similar incidents.A product, manufacturing or batch defect is therefore not identifiable.In our risk analysis b6, rev.04 (reusable optical working inserts), manufacturing-related, handling-related and design-related hazards with regard to a functional impairment as well as risks due to an unusable product were considered with the corresponding extent of damage and the assumed probability of occurrence and assessed with an acceptable risk.A detailed risk analysis was carried out during the development of the product.In the risk assessment b6, rev.04, the extent of damage and with the assumed probability of occurrence was considered and assessed with an acceptable risk.According to risk assessment b6, rev.04: hazard (3): electromagnetic energy functions/components (1): distal end causes (3): handling-related damage (3): reversible damage, additional intervention if necessary the ga-d342 / en / 2017-03 v13.0 / pk 17-8816 instruction manual contains the following applicable warnings for these faults: 7 application 7.2.2.1 bipolar application warning! risk of electric shock! do not connect the hf bipolar connection cable (14) to the monopolar socket of the hfchirurgie unit.Hf bipolar connection cable (14) is only suitable for the bipolar socket of the hf surgical unit.7.2.4 hf application warning! risk of injury if hf instrument is not in the surgeon's field of view! unintentional tissue damage as well as damage to the distal end of the endoscope and to the instrument parts is possible.Use hf instruments within the given specifications (voltage strength, operating mode).Only activate hf instruments when the hf current-carrying part appears fully in the field of view of the endoscope and the intended area of application is contacted.Incorrect selection of the hf output power! injuries to the patient and damage to the product are possible.The power setting must be made according to the experience / training of the surgeon with reference to the applicable indication.Caution! hf voltage / power too high! risk of injury due to damage to the insulation of the electrodes! damage to the insulation can lead to leakage currents.Thermal damage to the patient / user is possible.Replace electrode.Caution! danger of hf flashovers! insufficient distance between high-frequency current-carrying parts and other conductive parts as well as the high heat generation can lead to unintentional tissue damage and damage to the ceramics on the shaft and endoscope.Activate high-frequency current-carrying parts of hf instruments only in the extended state.In the event of hf flashovers, replace the electrode immediately, check the endoscope for damage and, if necessary, send it in for repair to prevent consequential damage.8 inspection 8.2 functional check check compatibility of individual components.Check ease of assembly and locking mechanism of individual products.Replace products if the connection - does not hold despite locking - does not lock or locks with difficulty.Check the fit of the electrode: insert the working element into the resectoscope shaft (chapter 7.1.10) and pull the electrode back completely using the working element.In this end position, the clip of the electrode must be approx.1 mm behind the edge of the shaft.This is the only way to ensure proper ablation of the tissue.- check the function of the hf bipolar connection cable in connection with the s(a)line resectoscope and the hf surgical unit.- check the irrigation and suction function.- check the entire system for leaks and continuity.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) submitting report on behalf of rwgmbh report on behalf of rwgmbh.

Event Description

The purpose of this report is to report the device evaluation/investigation results.Please see manufacturers narrative.

• Brand Name: S-LINE
• Type of Device: WORKING ELEMENT PASSIVE BIPO
• Manufacturer (Section D): RICHARD WOLF GMBH; pforzheimer strasse 32; knittlingen, 75438 ; GM 75438
• MDR Report Key: 11957808
• MDR Text Key: 254891170
• Report Number: 9611102-2021-00022
• Device Sequence Number: 1
• Product Code: FDC
• UDI-Device Identifier: 04055207042946
• UDI-Public: 04055207042946
• Combination Product (y/n): N
• PMA/PMN Number: K993103
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: foreign,health professional,o
• Type of Report: Initial,Followup
• Report Date: 07/29/2021

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
• Device Operator: Health Professional
• Device Model Number: 8680.224
• Device Catalogue Number: 8680.224
• Device Lot Number: 1376398
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 05/27/2021
• Initial Date Manufacturer Received: 05/27/2021
• Initial Date FDA Received: 06/08/2021
• Supplement Dates Manufacturer Received: 05/27/2021
• Supplement Dates FDA Received: 07/30/2021
• Is This a Reprocessed and Reused Single-Use Device?: No
• Patient Sequence Number: 1
• Patient Outcome(s): Other