MAUDE Adverse Event Report: MICROVENTION, INC. HYDROFRAME-10-AV; DEVICE, NEUROVASCULAR EMBOLIZATION

Model Number	7110-0515-A2
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Codes	Obstruction/Occlusion (2422); Thrombosis/Thrombus (4440)
Date of Event	04/29/2026
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported through a car registry study that an m1-m2 artery occlusion occurred.Another coil was placed into the right mca m2 aneurysm.Prior to deploying, a right internal carotid artery arteriogram was performed, which demonstrated occlusion of the stented right m1-m2 branch.At this point, the coil was explanted.The patient was administered a 90 mcg/kg bolus of integrilin.An attempt was made to re-access the stent using a microcatheter and microwire, but this was unsuccessful.A repeat right internal carotid artery arteriogram, was performed 7-8 minutes after integrilin bolus, demonstrated reperfusion of the stented right m1-m2 branch, and this was confirmed on multiple views.Subsequent angiographic runs showed significant contrast stasis of the aneurysms without parent vessel occlusion.The microcatheters were removed.Final angiographic runs of the right internal carotid artery again demonstrated significant contrast stasis of the right m1 and m2 aneurysms.The catheter was removed.An angioseal closure device was used for groin closure without any complications.The procedure was completed.The outcome was resolved.Additional information confirmed that a competitor¿s stent was used in this case.The official cause of the thrombus could not be determined; it is not known if the thrombus is attributable to the implant coil or the competitor¿s stent.
Additional Manufacturer Narrative
Investigation findings: the physical device was not available for evaluation to investigate if a condition existed that would have contributed to the reported event.Supplemental imaging was also unavailable for review; without imaging, the investigation cannot verify the event occurred as described, nor could the investigation further examine the cause of the reported event.This information may be updated if additional information is provided at a later date.Batch review: 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.Complaint system review: there are no similar complaints based on the complaint category regarding this batch number from the last two years recorded in the complaint system at the time of this investigation.Based on a review of the device¿s risk documentation, the reported event did not indicate there were the presence of any potential or new manufacturing, design, quality, or other systemic issues, or non-conformances.The complaint code is monitored through the trending process; corrective action is determined, as needed, through this process.Investigations of historic complaint files with similar complaint category coding are recorded in the complaint handling system; without the ability to perform an analysis of the device, this investigation cannot identify with certainty any potential root causes.Ifu review (additional information can be found in the ifu): potential complications potential complications include, but are not limited to: hematoma at the site of entry, vessel perforation, aneurysm rupture, parent artery occlusion, incomplete aneurysm filling, emboli, hemorrhage, ischemia, vasospasm, coil migration or misplacement, premature or difficult coil detachment, clot formation, revascularization, post-embolization syndrome, and neurological deficits including stroke and possibly death.Cases of chemical aseptic meningitis, edema, hydrocephalus and/or headaches have been associated with the use of embolization coils in the treatment of large and giant aneurysms.The physician should be aware of these complications and instruct patients when indicated.Appropriate patient management should be considered.Warnings and precautions the hes is intended for single use only.Do not resterilize and/or reuse the device.After use, dispose in accordance with hospital, administrative and/or local government policy.Do not use if the packaging is breached or damaged.If a coil must be retrieved from the vasculature after detachment, do not attempt to withdraw the coil with a retrieval device, such as a snare, into the delivery catheter.This could damage the coil and result in device separation.Remove the coil, microcatheter, and any retrieval device from the vasculature simultaneously.Detachment of the hes coil 33.When the v grip® detachment controller is properly connected to the v trak® delivery pusher, a single audible tone will sound and the light will turn green to signal that it is ready to detach the coil.If the detachment button is not pushed within 30 seconds, the solid green light will slowly flash green.Both flashing green and solid green lights indicate that the device is ready to detach.If the green light does not appear, check to ensure that the connection has been made.If the connection is correct and no green light appears, replace the v grip® detachment controller.35.Push the detachment button.When the button is pushed, an audible tone will sound and the light will flash green.36.At the end of the detachment cycle, three audible tones will sound and the light will flash yellow three times.This indicates that the detachment cycle is complete.If the coil does not detach during the detachment cycle, leave the v grip® detachment controller attached to the v trak® delivery pusher and attempt another detachment cycle when the light turns green.37.The light will turn red after the number of detachment cycles specified on the v grip® labeling.Do not use the v grip® detachment controller if the light is red.Discard the v grip® detachment controller and replace it with a new one when the light is red.38.Verify detachment of the coil by first loosening the rhv valve, then pulling back slowly on the delivery system and verifying that there is no coil movement.If the implant did not detach, do not attempt to detach it more than two additional times.If it does not detach after the third attempt, remove the delivery system.

• Brand Name: HYDROFRAME-10-AV
• Common Device Name: DEVICE, NEUROVASCULAR 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: 25250300
• Report Number: 2032493-2026-00329
• Device Sequence Number: 10500647
• Product Code: KRD
• UDI-Device Identifier: 00816777023681
• UDI-Public: (01)00816777023681(11)250604(17)300531(10)0001117218
• Combination Product (Y/N): N
• Initial Reporter State: OH
• Initial Reporter Country: US
• PMA/510(K) Number: K132952
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Study,Health Professional,User Facility,Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 05/21/2026

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: 7110-0515-A2
• Device Lot Number: 0001117218
• Was Device Available for Evaluation?: No
• 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: 04/30/2026
• Initial Report FDA Received Date: 05/21/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 06/04/2025
• 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
• Concomitant Medical Products and Therapy/Usage Dates: HYDROCOIL LOT#0001438912; HYDROCOIL LOT #0001259118; HYDROCOIL LOT#0001105244
• Outcome Attributed to Adverse Event: Required Intervention
• Patient Age: 66 YR
• Patient Sex: Female
• Patient Weight: 75 KG
• Patient Ethnicity: Non Hispanic
• Patient Race: White