MAUDE Adverse Event Report: ON-X LIFE TECHNOLOGIES, INC. ON-X PROSTHETIC AORTIC VALVE WITH CONFORM-X SEWING RING AND EXTENDED HOLDER; HEART-VALVE, MECHANICAL

Model Number	ONXACE-21
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Code	Insufficient Information (4580)
Date of Event	05/14/2025
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
This investigation is currently ongoing.Any additional information will be provided in the follow-up report.This report is being submitted as required by federal regulations and does not constitute an admission that the device caused or contributed to the reported event.Furthermore, this report reflects the event as alleged by the complainant and does not imply that the information reported to artivion- formerly cryolife/jotec is accurate or has been confirmed by artivion.
Event or Problem Description
According to the initial report, an implant registration card (irc) for an aortic on-x was received for a patient with an existing aortic on-x implant, indicating the original implant was explanted.
Additional Manufacturer Narrative
The manufacturing records for onxace-21 sn (b)(6) were reviewed and it was confirmed that all records were controlled, available for review, and met all specifications per the device master record.All lots passed functional testing and met release specifications.During the investigation no non-conformances or deviations were noted.On (b)(6) 2024, an onxace-21 sn (b)(6) was used in a case for a 30-year-old male in the aortic position.A second aortic on-x was reported to device tracking on (b)(6) 2025 as implanted in the same position, same patient: (b)(6) 2025 onxace-21 sn (b)(6) (211 days post-implant).Multiple attempts to receive additional information received no response.Review of manufacturing records show no processing issues with the original valve.The valve was not returned to the manufacturer for examination.We have no information about the explanted on-x valve other than the tracking notice and assume the valve was discarded on site.Consequently, we do not have enough information to know what, if any, contribution the valve had to the decision to replace it.The instructions for use for the on-x valve lists the possibility of explantation as a consequence of a complication of prosthetic heart valve replacement [ifu].But in this instance, we do not have any information to help us identify that complication.This report is being submitted as required by federal regulations and does not constitute an admission that the device caused or contributed to the reported event.Furthermore, this report reflects the event as alleged by the complainant and does not imply that the information reported to artivion- formerly cryolife/jotec is accurate or has been confirmed by artivion.

• Brand Name: ON-X PROSTHETIC AORTIC VALVE WITH CONFORM-X SEWING RING AND EXTENDED HOLDER
• Common Device Name: HEART-VALVE, MECHANICAL
• Manufacturer (Section D): ON-X LIFE TECHNOLOGIES, INC.; 1300 e. anderson ln., bldg. b; austin TX 78752
• Manufacturer (Section G): ON-X LIFE TECHNOLOGIES, INC.; 1300 e. anderson ln., bldg. b; austin TX 78752
• Manufacturer Contact: rochelle maney ; 1655 roberts blvd. nw; kennesaw, GA 30144 ; 7704193355
• MDR Report Key: 23057203
• Report Number: 1649833-2025-00034
• Device Sequence Number: 9225191
• Product Code: LWQ
• UDI-Device Identifier: 00851788001457
• UDI-Public: 00851788001457
• Combination Product (Y/N): N
• Initial Reporter State: MA
• Initial Reporter Country: US
• PMA/510(K) Number: P000037
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2024
• Device Explanted Year: 2025
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Other,User Facility
• Initial Reporter Occupation: Other
• Type of Report: Initial,Followup
• Report Date (Section B): 11/11/2025

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
• Device Model Number: ONXACE-21
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 08/18/2025
• Supplement Date Received by Manufacturer: Not provided
• Initial Report FDA Received Date: 09/15/2025
• Supplement Report FDA Received Date: 11/11/2025
• Was Device Evaluated by Manufacturer? (Y/N): Device Not Returned to Manufacturer
• Date Device Manufactured: 08/07/2024
• 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
• Outcome Attributed to Adverse Event: Other
• Patient Age: 31 YR
• Patient Sex: Male