MAUDE Adverse Event Report: MEDTRONIC HEART VALVES DIVISION MOSAIC MITRAL BIOPROSTHETIC HEART VALVE; HEART-VALVE, NON-ALLOGRAFT TISSUE

Model Number	310C29
Medical Device Problem Code	Break (1069)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	11/24/2025
Type of Reportable Event	Malfunction
Event or Problem Description
Medtronic received information that prior to implant of this 29mm mitral bioprosthetic valve, it was reported that the cinch suture had broke during handle turning and cinching the device.It was further noted that a new 29mm valve was used and ultimately implanted.No patient involvement was reported.
Additional Manufacturer Narrative
Medtronic submits this report to comply with fda regulations 21 cfr parts 4 and 803.Medtronic has made reasonable efforts to provide 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, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.Medtronic will submit a supplemental report if additional relevant information becomes known.
Additional Manufacturer Narrative
Product analysis: upon receipt at medtronic's quality laboratory, visual examination revealed that the valve holder was received loosely attached to the valve.One of the stent posts was detached from the holder.The valve holder appeared intact, with no evidence of damage.A model 7639 valve handle was rotated clockwise into the threaded opening of the holder; no anomalies were noted.The valve holder was removed from the valve for further observations.The rotor was removed from the holder for further observation.The sutures around the rotor were curled, suggestive of a suture wound during the cinching of the valve.One suture tip appears to be cut.Two suture tips appear to be broken.Necking or reduction in diameter is noted adjacent to the break.The broken surface of these suture tips is consistent with historical events that indicate the valve holder was over-ratcheted.D9: updated h3: device evaluated? updated h6: updated the codes medtronic submits this report to comply with fda regulations 21 cfr parts 4 and 803.Medtronic has made reasonable efforts to provide 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, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.Medtronic will submit a supplemental report if additional relevant information becomes known.

• Brand Name: MOSAIC MITRAL BIOPROSTHETIC HEART VALVE
• Common Device Name: HEART-VALVE, NON-ALLOGRAFT TISSUE
• Manufacturer (Section D): MEDTRONIC HEART VALVES DIVISION; 1851 e deere ave; santa ana CA 92705
• Manufacturer (Section G): MEDTRONIC HEART VALVES DIVISION; 1851 e deere ave; santa ana CA 92705
• Manufacturer Contact: alison sweeney ; parkmore business park west; galway ; EI ; 091708096
• MDR Report Key: 23685787
• Report Number: 2025587-2025-05991
• Device Sequence Number: 9984420
• Product Code: LWR
• UDI-Device Identifier: 00643169594852
• UDI-Public: (01)00643169594852(17)290324
• Combination Product (Y/N): N
• Initial Reporter State: KY
• Initial Reporter Country: US
• PMA/510(K) Number: P990064
• 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,Followup
• Report Date (Section B): 02/04/2026

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: 310C29
• Device Catalogue Number: 310C29
• 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: 11/24/2025
• Supplement Date Received by Manufacturer: 01/14/2026
• Initial Report FDA Received Date: 12/01/2025
• Supplement Report FDA Received Date: 02/04/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 03/25/2024
• 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 Sex: Unknown