MAUDE Adverse Event Report: B. BRAUN MEDICAL INC. HEMODIALYSIS BLOODLINES; SET, TUBING, BLOOD, WITH AND WITHOUT ANTI-REGURGITATION VALVE

Catalog Number	B3-4630M4705
Medical Device Problem Code	Air/Gas in Device (4062)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	02/04/2026
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
This report has been identified as b.Braun medical internal report number (b)(4).The investigation is ongoing at this time.A follow up will be submitted when the investigation results become available.
Event or Problem Description
As reported by the user facility: micro air bubbles were present in arterial side of line.No patient injury reported.
Additional Manufacturer Narrative
This report has been identified as b.Braun medical internal report number (b)(4).A review of the discrepancy management system (dsms) database was performed for the reported lot number, and no abnormalities or non-conformances were noted during the in process or final product inspection.One (1) contaminated sample was submitted to the manufacturer for evaluation.Based on the condition of the contaminated sample, no testing could be performed.Although the samples could not be properly tested, based on the complaint description, the reported event is similar to a known issue of air in line during use.The reported issue is due to a defect related to a tubing material change previously implemented.The change in tubing resin can lead to bubbles adhering to the inside of the arterial bloodline, in the segment between the patient connector and the blood pump.These bubbles are not being drawn into the bloodline from the external environment, but rather are the result of degassing of blood on the arterial side of the blood pump due to the high negative pressure within the tubing.With the previous tubing resin, these bubbles remained in the blood and were compressed or dissolved via the positive pressure applied post blood pump.With the new resin, these small bubbles adhere to the inside of the bloodline and may gather together to form larger bubbles.Further investigation of the issue is ongoing, and an action plan will be developed upon completion of the investigation.Urgent medical device correction 2521402-2/17/26-003-c [fda res # 98552] was issued to inform users of the issue and provide information to reduce the risk.We will maintain this report for further references and continue to monitor other reports for similar occurrences.If any additional pertinent information becomes available, a follow up will be submitted.

• Brand Name: HEMODIALYSIS BLOODLINES
• Common Device Name: SET, TUBING, BLOOD, WITH AND WITHOUT ANTI-REGURGITATION VALVE
• Manufacturer (Section D): B. BRAUN MEDICAL INC.; 824 12th avenue; bethlehem PA 18018
• Manufacturer (Section G): B. BRAUN MEDICAL INC.; 824 12th avenue; bethlehem PA 18018
• Manufacturer Contact: elena reifenstein ; 901 marcon blvd; allentown, PA 18109 ; 4847197287
• MDR Report Key: 24400666
• Report Number: 2521402-2026-00166
• Device Sequence Number: 9748254
• Product Code: FJK
• UDI-Device Identifier: 04046955348824
• UDI-Public: (01)04046955348824(17)280607(10)A2500243
• Combination Product (Y/N): N
• Initial Reporter State: OH
• Initial Reporter Country: US
• PMA/510(K) Number: K080807
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Health Professional,User Facility
• Initial Reporter Occupation: Other Health Care Professional
• Remedial Action: Recall
• Type of Report: Initial,Followup
• Report Date (Section B): 04/09/2026

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
• Device Catalogue Number: B3-4630M4705
• Device Lot Number: A2500243
• 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: 02/05/2026
• Supplement Date Received by Manufacturer: Not provided
• Initial Report FDA Received Date: 02/20/2026
• Supplement Report FDA Received Date: 04/09/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• 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
• If action reported to FDA under 21 USC 360i(g), list FDA-assigned Recall Number or include a statement: FDA RES # 98552
• Patient Sequence Number: 1
• Patient Age: 11 MO
• Patient Sex: Male