MAUDE Adverse Event Report: MICROVENTION, INC. AZUR CX 35 DETACHABLE; DEVICE VASCULAR FOR PROMOTING EMBOLIZATION

Model Number	45-752039
Medical Device Problem Codes	Stretched (1601); Premature Separation (4045)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	10/17/2025
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
A search for non-conformances associated with this part/lot number combination did not reveal any production-related issues relevant to the complaint that occurred during manufacturing of the device.The device was implanted in the patient and will not be returned to the manufacturer for evaluation.However, the pusher component of the device was returned to the manufacturer for evaluation.The investigation is ongoing.Upon completion of the investigation, a supplemental mdr will be submitted.The instructions for use (ifu) identifies premature coil detachment as a potential complication associated with the use of the device.
Event or Problem Description
It was reported that during a splenic embolization procedure, two coils became elongated.The physician attempted to retrieve the coils; however, both of them prematurely detached.A wire was used to push the coils backed into the vessel.The procedure was completed successfully.The patient is doing well.This report addresses the first coil.The second coil will be reported in a separate submission that references a different mfr report number.
Additional Manufacturer Narrative
The investigation of the returned coil system found the pusher heater coil kinked the pusher kinked within the outer sleeve at approximately 4cm from the strain relief.The pusher was also returned without the implant attached but no indications of activation using a detachment controller was found on the pusher heater coil.The implant was not returned for evaluation as it was pushed back into the vessel as described in the reported event.The investigation found the pusher¿s monofilament with a tensile break shape at the tip, which is consistent with the device experiencing force that exceeded the strength of the monofilament causing the implant to separate from the pusher.The physical evaluation of the device could not identify the conditions or circumstances that led to the pusher damage, but the damage is consistent with the device experiencing forces exceeding the pusher's yield strength.The catheter used in the procedure was not returned, so the investigation could not determine if it had caused or contributed to the reported complaint.
Event or Problem Description
See h11.

• Brand Name: AZUR CX 35 DETACHABLE
• Common Device Name: DEVICE VASCULAR FOR PROMOTING EMBOLIZATION
• Manufacturer (Section D): MICROVENTION, INC.; 35 enterprise; aliso viejo CA 92656
• Manufacturer Contact: terrence callahan ; 35 enterprise; aliso viejo, CA 92656 ; 7142478000
• MDR Report Key: 23471973
• Report Number: 2032493-2025-90628
• Device Sequence Number: 9510213
• Product Code: KRD
• UDI-Device Identifier: 00812636021102
• UDI-Public: (01)00812636021102(11)250508(17)300430(10)0001083512
• Combination Product (Y/N): N
• Initial Reporter State: WA
• Initial Reporter Country: US
• PMA/510(K) Number: K151358
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Health Professional,User Facility,Company Representative
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 12/03/2025

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?: No
• Operator of Device: Health Professional
• Device Model Number: 45-752039
• Device Lot Number: 0001083512
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 11/04/2025
• Is the Reporter a Health Professional?: Yes
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 10/17/2025
• Supplement Date Received by Manufacturer: 11/17/2025
• Initial Report FDA Received Date: 11/04/2025
• Supplement Report FDA Received Date: 12/03/2025
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 05/08/2025
• 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
• Outcome Attributed to Adverse Event: Required Intervention
• Patient Sex: Unknown