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

Model Number	44-101
Medical Device Problem Code	Detachment of Device or Device Component (2907)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	04/08/2025
Type of Reportable Event	Malfunction
Event or Problem Description
On (b)(6) 2025, a 65-year-old female patient underwent deep vein thrombosis (dvt) thrombectomy using inari devices.The patient's clot age was estimated at 30 days.During the thrombectomy, while recapturing the coring element of the revcore thrombectomy catheter (revcore), the outer sheath continued forward and pushed the radiopaque tip off the end of the device.The revcore catheter was removed from the patient while the radiopaque tip remained on the guidewire.Another catheter was opened and advanced over the wire.The catheter pushed the radiopaque tip into the protrieve sheath.The radiopaque tip was externalized from the valve of the protrieve sheath.The case was completed and approximately 100% of the patient's clot was removed.
Additional Manufacturer Narrative
The device has been returned to the manufacturer for evaluation.Upon completion of the investigation, a follow-up report will be submitted.Manufacturer reference: (b)(4).
Additional Manufacturer Narrative
The revcore thrombectomy catheter (revcore) was returned to the manufacturer and evaluated.Visual inspection confirmed the radiopaque tip had separated from the catheter and no other signs of damage or defects were observed.The inner diameter of the tip, as well as the inner catheter shaft the tip was adhered to, were observed under magnification.Cured adhesive was revealed on both mating surfaces.As there was appropriate adhesive observed in the correct locations on the device, the tip of the revcore most likely separated due to the device being caught in torturous patient anatomy.The device identifiers were provided, and the lot history records were reviewed.There were no discrepancies or unusual findings.The device labeling includes the following warning statements: "avoid using excessive force to advance or retract against resistance.If excessive resistance is encountered, retract, and collapse the coring element into the outer catheter and remove the device.Excessive force against resistance may result in damage to the device or vessel." manufacturer reference #:(b)(6).

• Brand Name: REVCORE THROMBECTOMY CATHETER
• 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: mazi kiani ; 6001 oak canyon; suite 100; irvine, CA 92618 ; 6513233614
• MDR Report Key: 21979608
• Report Number: 3020347218-2025-00029
• Device Sequence Number: 15673555
• Product Code: QEW
• UDI-Device Identifier: 00850291007383
• UDI-Public: (01)00850291007383(17)250809(10)23080025
• Combination Product (Y/N): N
• Initial Reporter State: IN
• Initial Reporter Country: US
• PMA/510(K) Number: K223609
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Health Professional,Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 06/16/2025

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: 08/09/2025
• Device Model Number: 44-101
• Device Lot Number: 23080025
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 04/21/2025
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 04/08/2025
• Supplement Date Received by Manufacturer: 06/09/2025
• Initial Report FDA Received Date: 05/07/2025
• Supplement Report FDA Received Date: 06/16/2025
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 08/09/2023
• 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: FLOWSAVER; PROTRIEVE SHEATH
• Patient Age: 65 YR
• Patient Sex: Female
• Patient Weight: 55 KG