MAUDE Adverse Event Report: BIOTRONIK AG, BUELACH, SWITZERLAND PK PAPYRUS US 3.0/26; COVERED CORONARY STENT

Model Number	434899
Medical Device Problem Code	Device Dislodged or Dislocated (2923)
Health Effect - Clinical Code	Insufficient Information (4580)
Date of Event	10/19/2021
Type of Reportable Event	Malfunction
Event or Problem Description
A pk papyrus covered stent system was selected for treatment of a type iii perforation, which occurred during orbital atherectomy in the cx.The device could not be advanced through left main into the cx.The stent dislodged.Two other pk papyrus were implanted.
Additional Manufacturer Narrative
The returned instrument was subjected to a detailed technical analysis and the corresponding product release documentation was reviewed to establish whether a deviation from the manufacturing process could be the cause for the reported event.The technical investigation revealed that the balloon is well folded and shows no signs of inflation.The proximal balloon shoulder is slightly compressed/opened.Microscopic inspection revealed stent imprints on the exposed balloon surface, indicating that the stent was initially crimped on the balloon.The stent was not returned for analysis.Review of the product release documentation confirmed that the instrument was manufactured according to specifications and passed all in-process and final inspections.As a part of final inspection every stent system undergoes visual inspection to ensure correct embedding and homogeneous crimping of the stent.Further, the stent outer diameter is verified to 100 percent.Based on the conducted investigations of the device being subject to this complaint, no material or manufacturing related root cause was determined.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 3.0/26
• 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: 12787407
• Report Number: 1028232-2021-06079
• Device Sequence Number: 17142018
• Product Code: NIV
• UDI-Device Identifier: 07640130447271
• UDI-Public: 07640130447271
• Combination Product (Y/N): N
• Initial Reporter Country: US
• PMA/510(K) Number: H170004
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Reporter Type: Manufacturer
• Report Source: User Facility,Company Representative
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 10/20/2021

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: 01/31/2023
• Device Model Number: 434899
• Device Catalogue Number: SEE MODEL NO.
• Device Lot Number: 01216037
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 11/08/2021
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 10/20/2021
• Supplement Date Received by Manufacturer: 12/09/2021
• Initial Report FDA Received Date: 11/10/2021
• Supplement Report FDA Received Date: 12/14/2021
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 02/25/2021
• 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 Sex: Female