MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION FILTERWIRE EZ?; TEMPORARY CORONARY SAPHENOUS VEIN BYPASS GRAFT FOR EMBOLIC PROTECTION

Model Number	H749201003000
Medical Device Problem Codes	Difficult to Remove (1528); Material Integrity Problem (2978)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	08/26/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
E1: initial reporter facility name: (b)(6) hospital.Ei: initial reporter phone: (b)(6).
Event or Problem Description
It was reported that device removal difficulty occurred.The target lesion was located in the origin of left internal carotid artery.A 300 cm filterwire was selected for use.The device was prepared to be delivered with a non-bsc guiding catheter and the tip of the device was put into heparin water for retrieval.During the retrieval, a significant resistance was noted preventing the device to be removed.After applying slight force, the system was successfully retrieved however could not be advanced again and it was found that the delivery sheath was damaged and could not be used.The procedure was completed with another of the same device.There were no patient complications as a result of this event.
Event or Problem Description
It was reported that device removal difficulty occurred.The target lesion was located in the origin of left internal carotid artery.A 300 cm filterwire was selected for use.The device was prepared to be delivered with a non-bsc guiding catheter and the tip of the device was put into heparin water for retrieval.During the retrieval, a significant resistance was noted preventing the device to be removed.After applying slight force, the system was successfully retrieved however could not be advanced again and it was found that the delivery sheath was damaged and could not be used.The procedure was completed with another of the same device.There were no patient complications as a result of this event.
Additional Manufacturer Narrative
H6 device codes: corrected.E1: initial reporter facility name: (b)(6).Ei: initial reporter phone: (b)(6).
Additional Manufacturer Narrative
E1: initial reporter facility name: (b)(6).Ei: initial reporter phone: (b)(6).Device evaluated by mfr: the filterwire was returned for analysis.The wire returned inside the delivery sheath and the filter bag came back in deployed state.The retrieval sheath was returned.No damages were observed in the sections returned.Sheathing/unsheathing test was performed, and the filter bag can be retracted/deployed by normal way.
Event or Problem Description
It was reported that device removal difficulty occurred.The target lesion was located in the origin of left internal carotid artery.A 300 cm filterwire was selected for use.The device was prepared to be delivered with a non-bsc guiding catheter and the tip of the device was put into heparin water for retrieval.During the retrieval, a significant resistance was noted preventing the device to be removed.After applying slight force, the system was successfully retrieved however could not be advanced again and it was found that the delivery sheath was damaged and could not be used.The procedure was completed with another of the same device.There were no patient complications as a result of this event.

• Brand Name: FILTERWIRE EZ?
• Common Device Name: TEMPORARY CORONARY SAPHENOUS VEIN BYPASS GRAFT FOR EMBOLIC PROTECTION
• Manufacturer (Section D): BOSTON SCIENTIFIC CORPORATION; 300 boston scientific way; marlborough MA 01752
• Manufacturer (Section G): BOSTON SCIENTIFIC CORPORATION; 2546 calle primera; alajuela ; CS
• Manufacturer Contact: rachel shields ; 4100 hamline ave n; arden hills, MN 55112 ; 6512422111
• MDR Report Key: 23109714
• Report Number: 2124215-2025-66105
• Device Sequence Number: 15973164
• Product Code: NFA
• UDI-Device Identifier: 08714729470861
• UDI-Public: (01)08714729470861(17)260827(10)34726714
• Combination Product (Y/N): N
• Initial Reporter Country: CH
• PMA/510(K) Number: K063313
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Other,Foreign,Health Professional,Company Representative,Distributor
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup,Followup
• Report Date (Section B): 12/08/2025

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: 08/27/2026
• Device Model Number: H749201003000
• Device Catalogue Number: H749201003000
• Device Lot Number: 0034726714
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 08/26/2025
• Supplement Date Received by Manufacturer: 10/20/2025; 11/18/2025
• Initial Report FDA Received Date: 09/22/2025
• Supplement Report FDA Received Date: 11/18/2025; 12/08/2025
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 08/27/2024
• 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
• Patient Age: 66 YR
• Patient Sex: Male
• Patient Weight: 64 KG