MAUDE Adverse Event Report: MEDOS INTERNATIONAL SARL EU ENT4.5MMD 22MML WNO DSTL TP; INTRACRANIAL NEUROVASCULAR STENT

Catalog Number ENC452200

Device Problem Failure to Advance (2524)

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

Event Date 03/29/2024

Event Type  malfunction  

Manufacturer Narrative

Manufacturer¿s ref.No: (b)(4).Information regarding patient identifier, date of birth, age, weight, race, and ethnicity were not provided.Section e.1: the initial reporter phone: (b)(6).The initial reporter email address was not available / reported.Section h.3: the device is available to be returned for evaluation and testing.However, it has not been received to date as indicated as ¿other¿ in this section as the reason for non-evaluation.If the device returns, a device investigation will be performed.Lake region medical performed a review of the device history records relative to the manufacturing, inspection, and packaging of the lot 8546194.The history record indicates this product was final inspection tested at lake region medical and was determined to be acceptable.This report is being submitted pursuant to the provisions of 21 cfr, part 803.This report may be based on information which has not been investigated or verified prior to the required reporting date.This report does not reflect a conclusion by cerenovus, or its employees that the report constitutes an admission that the product, cerenovus, or its employees caused or contributed to the potential event described in this report.If information is obtained that was not available for the initial report, a follow-up report will be filed as appropriate.Missing information from this report is identified as blank; this information was not provided in the reported event or available at the time of report submission.The manufacturer will submit a supplemental report if new facts arise which materially alter information submitted in a previous mdr report.Additional information will be submitted within 30 days of receipt.

Event Description

The healthcare professional reported that during a stent-assisted endovascular embolization procedure targeting an aneurysm on the m2 segment of the middle cerebral artery (mca), the 4.5mm x 22mm no distal tip enterprise vascular reconstruction device ((b)(6) / (b)(6)) was in place and its release was being initiated.The stent was observed impeded in the concomitant microcatheter (unspecified brand) and could not be released.The physician removed the microcatheter and the stent from the patient, replaced both devices to complete the procedure.The patient was reported to be in good condition, no report of any negative patient impact.On 08-apr-2024, additional information was received.Per the information, it was confirmed that the procedure was a stent-assisted endovascular embolization of an aneurysm on the m2 segment of the middle cerebral artery (mca).Adequate continuous flush was maintained through the microcatheter.The replacement stent was another 4.5mm x 22mm no distal tip enterprise vascular reconstruction device ((b)(6)).The replacement stent was another competitor brand.The information confirmed there was no negative patient impact and no delay in the procedure as a result of the reported issue.

Manufacturer Narrative

Manufacturer¿s ref.No: (b)(4).The purpose of this mdr submission is to report that the product analysis lab received the complaint device on 07-may-2024.A supplemental 3500a report will be submitted once the product investigation has been completed.The manufacturer will submit a supplemental report if new facts arise which materially alter information submitted in a previous mdr report.Additional information will be submitted within 30 days of receipt.

Manufacturer Narrative

Manufacturer¿s ref.No: (b)(4).The purpose of this mdr submission is to report the investigational finding of the returned device.The complaint product was returned and received for evaluation and analysis.The investigation is documented below.Investigation summary: a non-sterile 4.5mm x 22mm no distal tip enterprise vascular reconstruction device was received contained in the decontamination pouch.Visual inspection was performed.It was noted that only the delivery wire was returned for evaluation and it was observed to be in good condition.The issue regarding a stent being impeded in microcatheter tip cannot be evaluated through functional testing.The stent must be inside the introducer tube to perform the functional analysis.Additionally, the returned component did not present damages that suggest that it was forcibly advanced.With the limited information available, a conclusive cause cannot be determined; however, it is possible that clinical and procedural factors, including device manipulation and operator's technique, may have contributed to the reported failure.At this time, there is no evidence to support that the issue reported in the complaint is a result of a defect inherently related to the device.The stent and introducer components might have gotten lost sometime during the post-operative handling of the device.If additional information or components are received at a later time, this investigation will be reassessed accordingly.The stent detachment was not originally reported in the complaint and is not considered related to the encountered issue.Lake region medical performed a review of the device history records relative to the manufacturing, inspection, and packaging of the lot 8546194.The history record indicates this product was final inspection tested at lake region medical and was determined to be acceptable.As part of the cerenovus quality process, all devices are manufactured, inspected, and released to approved specifications.It should be noted that product failure could be caused by multiple factors.The instructions for use (ifu) do contain the following recommendations: if resistance is met during manipulation, determine the cause of resistance before proceeding.Do not apply undue force if resistance is encountered at any point during stent manipulation.Withdraw the unit and advance a new one.Based on the manufacturing documentation review, there is no indication that the event is related to the device manufacturing process.As part of the post market surveillance program, information from this complaint is trended for statistical signals and corrective / preventive action may be triggered at a later time.Since there was no evidence to suggest the event was related to a manufacturing or design issue, no corrective actions will be taken at this time.The manufacturer will submit a supplemental report if new facts arise which materially alter information submitted in a previous mdr report.Additional information will be submitted within 30 days of receipt.

• Brand Name: EU ENT4.5MMD 22MML WNO DSTL TP
• Type of Device: INTRACRANIAL NEUROVASCULAR STENT
• Manufacturer (Section D): MEDOS INTERNATIONAL SARL; chemin-blanc 38; le locle neuchatel CH-24 00; SZ CH-2400
• Manufacturer (Section G): CERENOVUS, INC.; 325 paramount dr; raynham MA 02767
• Manufacturer Contact: kate karberg ; 31 technology dr; irvine, CA 92618 ; 303552-689
• MDR Report Key: 19093962
• MDR Text Key: 340686521
• Report Number: 3008114965-2024-00369
• Device Sequence Number: 1
• Product Code: NJE
• Combination Product (y/n): N
• Reporter Country Code: CH
• PMA/PMN Number: H60001
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Foreign,Health Professional,Company Representative
• Reporter Occupation: Physician
• Type of Report: Initial,Followup,Followup
• Report Date: 05/13/2024

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 Catalogue Number: ENC452200
• Device Lot Number: 8546194
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Is the Reporter a Health Professional?: Yes
• Initial Date Manufacturer Received: 03/29/2024
• Initial Date FDA Received: 04/11/2024
• Supplement Dates Manufacturer Received: 05/07/2024; 05/13/2024
• Supplement Dates FDA Received: 05/07/2024; 05/13/2024
• Was Device Evaluated by Manufacturer?: Yes
• Date Device Manufactured: 08/14/2023
• 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
• Treatment: MICROCATHETER (UNSPECIFIED BRAND)
• Patient Sex: Male