MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION GUIDEZILLA? II; CATHETER, PERCUTANEOUS

Model Number	H74939335150610
Medical Device Problem Codes	Failure to Advance (2524); Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	08/13/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
E1: initial reporter facility name: (b)(6) e1: initial reporter address 1:(b)(6) e1: initial reporter phone: (b)(6).Device evaluated by manufacturer: the device was returned for analysis.Visual inspection revealed that there was a collar and shaft separation.
Event or Problem Description
Reportable based on the device analysis completed on 23oct2025.It was reported that the device was unable to cross the lesion.The 97% stenosed lesion was located in the moderately tortuosity and moderately calcified left anterior descending artery.A 6f guidezilla ii was selected for use.During the procedure, it was noted that the device was unable to cross the lesion.The procedure was completed with another of the same device.There were no patient complications and the patient was stable post procedure.However, the device analysis revealed that the collar and shaft separation occurred.

• Brand Name: GUIDEZILLA? II
• Common Device Name: CATHETER, PERCUTANEOUS
• Manufacturer (Section D): BOSTON SCIENTIFIC CORPORATION; 300 boston scientific way; marlborough MA 01752
• Manufacturer (Section G): BOSTON SCIENTIFIC CORPORATION; two scimed place; maple grove MN 55311
• Manufacturer Contact: mark mischke ; 4100 hamline ave n; arden hills, MN 55112 ; 7634941632
• MDR Report Key: 23575944
• Report Number: 2124215-2025-82081
• Device Sequence Number: 9505145
• Product Code: DQY
• UDI-Device Identifier: 08714729939467
• UDI-Public: (01)08714729939467(17)270107(10)35569963
• Combination Product (Y/N): N
• Initial Reporter Country: CH
• PMA/510(K) Number: K163314
• 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
• Report Date (Section B): 11/17/2025

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 Model Number: H74939335150610
• Device Catalogue Number: H74939335150610
• Device Lot Number: 0035569963
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 10/08/2025
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 10/23/2025
• Initial Report FDA Received Date: 11/17/2025
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 01/07/2025
• 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
• Patient Age: 77 YR
• Patient Sex: Male
• Patient Weight: 72 KG