MAUDE Adverse Event Report: MICROVENTION, INC. SOFIA FLOW PLUS 6F; CATHETER, THROMBUS RETRIEVER

Model Number	DA6131ST
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Code	Intracranial Hemorrhage (1891)
Date of Event	11/22/2024
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
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.This study is ongoing and device/procedure relatedness determinations can be re-adjudicated by independent reviewers/physicians.The study device and study procedure relatedness can change as a result of these reviews.Microvention is submitting this report to comply with fda reporting regulations under 21 cfr parts 4 and 803.This report is based upon information obtained by microvention, which the company may not have been able to fully investigate or verify prior to the date the report was required by the fda.Microvention has made reasonable efforts to obtain more complete information and has provided as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, microvention, or its employees that the device, microvention, or its employees caused or contributed to the event described in the report.This statement should be included with any information or report disclosed to the public under the freedom of information act.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.A good faith effort will be made to obtain the applicable information relevant to the report.
Event or Problem Description
As reported through the sofast/restore clinical study: new imaging evidence of subarachnoid hemorrhage.The routine post-thrombectomy noncontrast head ct revealed trace subarachnoid hemorrhage that was unchanged on subsequent head cts and required no further intervention.Index procedure was performed the day prior.There was no hemorrhagic transformation.No diagnostics procedures were performed following the event.The event was neurological and asymptomatic.Severity was mild.The event was resolved without sequelae six days later.Event was adjudicated as possibly related to the sofia device, study disease, and concurrent condition/treatment.The event was adjudicated as definitely related to the mechanical thrombectomy procedure.

• Brand Name: SOFIA FLOW PLUS 6F
• Common Device Name: CATHETER, THROMBUS RETRIEVER
• 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: 22116154
• Report Number: 2032493-2025-90195
• Device Sequence Number: 4172103
• Product Code: NRY
• UDI-Device Identifier: 00842429108482
• UDI-Public: (01)00842429108482(11)240307(17)270228(10)0000542183
• Combination Product (Y/N): N
• Initial Reporter State: MO
• Initial Reporter Country: US
• PMA/510(K) Number: K150366
• 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): 05/30/2025

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: DA6131ST
• Device Lot Number: 0000542183
• 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: 05/21/2025
• Initial Report FDA Received Date: 05/30/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 03/07/2024
• 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: ERIC, BOBBY.
• Outcome Attributed to Adverse Event: Other
• Patient Age: 70 YR
• Patient Sex: Male
• Patient Ethnicity: Non Hispanic
• Patient Race: White