MAUDE Adverse Event Report: BIOTRONIK AG, BUELACH, SWITZERLAND PK PAPYRUS US 2.5/15; COVERED CORONARY STENT

Model Number	434887
Medical Device Problem Code	Material Split, Cut or Torn (4008)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	04/15/2025
Type of Reportable Event	Malfunction
Event or Problem Description
During treatment of the mid lad with a balloon, a type iii perforation had occurred.After placing the 1st pk papyrus covered stent, it was attempted to implant a 2nd pk papyrus stent, but the device was unable to cross the lesion, and the covering of papyrus stent was stripped in the entrance to 6f guideliner.The 2nd pk papyrus stent was never deployed in patient.Then, a balloon was used to treat the perforation.The perforation was successfully sealed.
Additional Manufacturer Narrative
The affected pk papyrus stent system was not returned to biotronik and could therefore not be subjected to a technical investigation.Images of the case such as angiographies could also not be obtained.The provided clinical information (pk papyrus device registration form, the pre-op-report, the cathlab report and the progress notes) was reviewed to establish whether a device deficiency contributed to this event.Review of the production documentation confirmed that the device was manufactured according to specifications and fulfilled all the requirements of in-process and final inspection.Based on the provided documentation and the conducted review, no manufacturing related root cause could be identified.The treating physician rated the outcome as both, not device-related and not procedure related complication.The ifu clearly advices not to re-insert the stent system as the stent and/or the delivery system may have been damaged during the initial attempt to cross the lesion or during withdrawal.Pk papyrus is indicated for the treatment of acute perforations of native coronary arteries and coronary bypass grafts in vessels 2.5 to 5.0 mm in diameter.As such, this device is typically used in emergent response to a life-threatening adverse procedural event unrelated to use of the pk papyrus.

• Brand Name: PK PAPYRUS US 2.5/15
• Common Device Name: COVERED CORONARY STENT
• Manufacturer (Section D): BIOTRONIK AG, BUELACH, SWITZERLAND; ackerstrasse 6; buelach CH-81 80; CH CH-8180
• Manufacturer Contact: 6024 jean road; lake oswego, OR 97035 ; 8772459800
• MDR Report Key: 21937893
• Report Number: 1028232-2025-02120
• Device Sequence Number: 5192607
• Product Code: NIV
• UDI-Device Identifier: 07640130447158
• UDI-Public: (01)07640130447158(17)2604
• Combination Product (Y/N): N
• Initial Reporter State: NY
• Initial Reporter Country: US
• PMA/510(K) Number: H170004
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2025
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 05/21/2025

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
• Device Expiration Date: 04/08/2026
• Device Model Number: 434887
• Device Catalogue Number: 434887
• Device Lot Number: 03242932
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 04/16/2025
• Supplement Date Received by Manufacturer: 05/21/2025
• Initial Report FDA Received Date: 04/30/2025
• Supplement Report FDA Received Date: 05/21/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 04/09/2024
• 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: Hospitalization
• Patient Age: 63 YR
• Patient Sex: Female