MAUDE Adverse Event Report: MEDOS INTERNATIONAL SARL CERENOVUS ENTERPRISE; INTRACRANIAL NEUROVASCULAR STENT

Catalog Number	ENCR403900
Medical Device Problem Code	Failure to Advance (2524)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	07/14/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
Manufacturer ref#: (b)(4).Information regarding patient weight, height, medical history, race, and ethnicity was not reported.Section h3 - the device is available to be returned for evaluation and testing.However, it has not been received to date.If the device returns, a device investigation will be performed.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 company is seeking this information through the event investigation.This report is being submitted pursuant to the provisions of 21 cfr, part 803 (and/or part 4, as applicable).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.
Event or Problem Description
A health care professional reported that during an angioplasty, an enterprise2 4mmx39mm no tip vascular reconstruction device (encr403900, 8697553) was impeded in the proximal end of a prowler select plus 150/5cm microcatheter (606s255x , 31527346) and could not advance any more.The doctor removed the stent and microcatheter from the patient and switched to new devices to complete the procedure.The surgery was prolonged by about 10 minutes.There was no patient injury reported.
Additional Manufacturer Narrative
Manufacturer ref# (b)(4).Section b5: additional event information was received indicating that the stent body of the case was not available for return, only delivery system will be returned for analysis.A supplemental report will be submitted if new facts arise which materially alter information submitted in a previous mdr report.
Additional Manufacturer Narrative
Manufacturer ref#: (b)(4).Complaint conclusion: a health care professional reported that during an angioplasty, an enterprise 2 4mmx39mm no tip vascular reconstruction device (encr403900, 8697553) was impeded in the proximal end of a prowler select plus 150/5cm microcatheter (606s255x , 31527346) and could not advance any more.The doctor removed the stent and microcatheter from the patient and switched to new devices to complete the procedure.The surgery was prolonged by about 10 minutes.There was no patient injury reported.No additional information is available.The device was returned to j&j medtech for further evaluation.A non-sterile enterprise2 4mmx39mm no tip vascular reconstruction device was received contained in the decontamination pouch.Upon receiving the device, visual inspection was performed, and as reported in the additional information, the stent component was not attached to the delivery system and it was not returned for evaluation.Multiple kinks were found on the distal end of the delivery wire.The kinked non-concentric loops of the delivery wire were also found slightly stretched under magnification.A device history record (dhr) was performed and it indicated this product was final inspection tested at lake region medical and was determined to be acceptable.Although the detached condition of the stent prevented proper functional testing for the impeded condition reported, the complaint is confirmed based on the damage of the delivery wire.It is suggested that excessive force could had been inadvertently applied during the attempts to advance the stent through the damaged concomitant microcatheter, resulting in the kinked condition of the delivery wire.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 detachment was not originally reported, and the exact time of occurrence cannot be determined; therefore, this is not considered related to the issue reported.As part of the j&j medtech quality process, all devices are manufactured, inspected, and released to approved specifications.Since there was no evidence to suggest the event was related to a manufacturing or design issue, no capa activity is required.It should be noted that product failure could be caused by multiple factors.The instructions for use (ifu) do contain the following recommendations: ¿ do not partially deploy the stent from the introducer.¿ do not apply undue force if resistance is encountered at any point during stent manipulation.Withdraw the unit and advance a new one.¿ confirm the tip of the delivery wire is entirely within the introducer.As part of the post market surveillance program, information from this complaint is trended to identify statistical signals for consideration of further correction action.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.A supplemental report will be submitted if new facts arise which materially alter information submitted in a previous mdr report.

• Brand Name: CERENOVUS ENTERPRISE
• Common Device Name: 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: henry boden ; 31 technology dr; irvine, CA 92618 ; 9497882078
• MDR Report Key: 22509636
• Report Number: 3008114965-2025-00730
• Device Sequence Number: 9264953
• Product Code: NJE
• UDI-Device Identifier: 10886704075400
• UDI-Public: (01)10886704075400(17)260928(10)8697553
• Combination Product (Y/N): N
• Initial Reporter Country: CH
• PMA/510(K) Number: H60001
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Foreign,Health Professional,Company Representative
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup,Followup
• Report Date (Section B): 08/13/2025

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
• Operator of Device: Health Professional
• Device Expiration Date: 09/28/2026
• Device Catalogue Number: ENCR403900
• Device Lot Number: 8697553
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 07/14/2025
• Supplement Date Received by Manufacturer: 07/23/2025; 07/29/2025
• Initial Report FDA Received Date: 07/15/2025
• Supplement Report FDA Received Date: 07/23/2025; 08/13/2025
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 10/25/2023
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Concomitant Medical Products and Therapy/Usage Dates: PROWLER SELECT PLUS 150/5CM.
• Patient Sex: Unknown