MAUDE Adverse Event Report: BIOTRONIK AG, BUELACH, SWITZERLAND PK PAPYRUS US 3.5/26; COVERED CORONARY STENT

Model Number	434900
Medical Device Problem Code	Device Dislodged or Dislocated (2923)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	02/24/2021
Type of Reportable Event	Malfunction
Event or Problem Description
The patient developed a vessel perforation and a pk papyrus covered coronary stent system was chosen for the treatment.It was not possible to deliver the stent to the mid lad and was thus removed.During withdrawal the stent dislodged inside the prox.Lad and it was decided to insert different balloon catheters (size 2.0 and 3.0) to implant the dislodged stent in place.
Additional Manufacturer Narrative
The complaint instrument was not returned for analysis.Therefore, no technical investigation on the subject could be performed.The production documentation was reviewed to establish whether a deviation from the manufacturing process could be the cause for the reported event.Review of the production documentation for the product detailed above verified that the instrument was manufactured according to specifications and fulfilled all the requirements of in-process and final inspection.During final inspection, every stent system undergoes visual inspection to ensure correct stent embedding and homogeneous crimping of the stent.Further, the stent outer diameter is verified to 100 percent and the stent retention force of a defined amount of samples is tested from every lot.Based on the conducted investigations of the device being subject to this complaint, no material or manufacturing related root cause was determined.

• Brand Name: PK PAPYRUS US 3.5/26
• Common Device Name: COVERED CORONARY STENT
• Manufacturer (Section D): BIOTRONIK AG, BUELACH, SWITZERLAND; ackerstrasse 6; buelach CH-81 80; CH CH-8180
• MDR Report Key: 11700591
• Report Number: 1028232-2021-01967
• Device Sequence Number: 3534883
• Product Code: NIV
• UDI-Device Identifier: 07640130447288
• UDI-Public: 07640130447288
• Combination Product (Y/N): N
• Initial Reporter Country: US
• PMA/510(K) Number: H170004
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2021
• Reporter Type: Manufacturer
• Report Source: company representative,user f
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 04/16/2021

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: 02/28/2021
• Device Model Number: 434900
• Device Catalogue Number: SEE MODEL NO.
• Device Lot Number: 02196003
• Was Device Available for Evaluation?: No
• Initial Date Received by Manufacturer: 04/16/2021
• Supplement Date Received by Manufacturer: 06/11/2021
• Initial Report FDA Received Date: 04/21/2021
• Supplement Report FDA Received Date: 06/11/2021
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Patient Age: 85 YR