MAUDE Adverse Event Report: INARI MEDICAL, INC. TRIEVER20 CURVE; PERIPHERAL MECHANICAL THROMBECTOMY WITH ASPIRATION

Model Number	21-201
Medical Device Problem Code	Insufficient Device Problem Information (3190)
Health Effect - Clinical Codes	Arrhythmia (1721); Cardiac Arrest (1762); Hemorrhage/Blood Loss/Bleeding (1888); Cardiac Perforation (2513)
Date of Event	11/27/2023
Type of Reportable Event	Death
Additional Manufacturer Narrative
The inari devices were discarded by the user facility and are not available for evaluation.The device identifiers were provided, and the lot history records were reviewed.There were no discrepancies or unusual findings.There was no report of any device malfunction.Based on the information reviewed, there is no evidence to indicate the presence of a potential quality issue with respect to manufacturing, design, or labeling.The case was reviewed by inari's chief medical officer, who concluded that the patient's death was the result of distal embolism and the patient's perforation was likely the result of inadvertent catheter perforation.Cardiac perforation, arrhythmias, cardiogenic shock, and death are listed in the device labeling as potential complications / adverse events.This report is being filed for the t20 curve.Refer to mfr report # 3020347218-2023-00028 for the report on the ct bold catheter device.Manufacturer reference #: (b)(4).
Event or Problem Description
A 78-year-old female with left lower extremity deep vein thrombosis (dvt) underwent a thrombectomy with the inari clottriever system.The clot age was estimated at 5 days.The procedure was performed under monitored anesthesia with the patient in a prone position.Wire positioning was successfully obtained and the clottriever bold catheter was advanced.Two passes were performed before the heart rate decreased from a baseline of 75 bpm to the 60 range.The patient continued to deteriorate as imaging was attempted.A venogram of the lower left extremity revealed no clot burden indicating a potential embolism.The heart rate further declined (50 bpm range) and the patient was repositioned supine.Cardiopulmonary resuscitation (cpr) was administered and the patient was intubated.The pulmonary angiogram confirmed a pulmonary embolism on the left side and the surgeon converted to use of the flowtriever.Wire positioning was obtained and a triever24 (t24) was inserted but would not advance past the curvature of the left pulmonary artery; a triever20 curve (t20c) was then telescoped through the t24.An aspiration was performed which resulted in an obstruction.The device was removed from the patient and a moderate sized sub-acute clot was flushed.The t20c was reinserted and 2 more aspirations were performed, but yielded no clot; aspiration with the t24 also yielded no clot.Another angiogram revealed perforation of the left pulmonary artery.At this point resuscitation efforts had been conducted for 30 minutes and the cardiac rhythm identified pulseless electrical activity (pea).Resuscitation efforts were discontinued and the patient expired.

• Brand Name: TRIEVER20 CURVE
• Common Device Name: PERIPHERAL MECHANICAL THROMBECTOMY WITH ASPIRATION
• Manufacturer (Section D): INARI MEDICAL, INC.; 6001 oak canyon; suite 100; irvine CA 92618
• Manufacturer (Section G): INARI MEDICAL, INC.; 6001 oak canyon; suite 100; irvine CA 92618
• Manufacturer Contact: keith hebert ; 6001 oak canyon; suite 100; irvine, CA 92618 ; 6513233614
• MDR Report Key: 18400529
• Report Number: 3020347218-2023-00029
• Device Sequence Number: 14143142
• Product Code: QEW
• UDI-Device Identifier: 00850291007215
• UDI-Public: 00850291007215
• Combination Product (Y/N): N
• Initial Reporter State: GA
• Initial Reporter Country: US
• PMA/510(K) Number: K231848
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional,Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 12/27/2023

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: 21-201
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 11/27/2023
• Initial Report FDA Received Date: 12/27/2023
• Was Device Evaluated by Manufacturer? (Y/N): Device Not Returned to Manufacturer
• 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: 8 FR SHEATH.; AMPLATZ SUPER STIFF GUIDEWIRE (1 CM).; CLOTTRIEVER BOLD.; IVUS VOLCANO.; TRIEVER24.
• Outcome Attributed to Adverse Event: Death; Life Threatening; Required Intervention
• Patient Age: 78 YR
• Patient Sex: Female