MAUDE Adverse Event Report: TERUMO CARDIOVASCULAR SYSTEMS CORPORATION CDI SHUNT SENSOR; MONITOR, BLOOD-GAS, ON-LINE, CARDIOPULMONARY BYPASS

Model Number	CDI510H
Medical Device Problem Code	Fluid/Blood Leak (1250)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	03/02/2026
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
Terumo has not received the device for evaluation; therefore, the investigation has yet to be completed.Terumo plans on submitting a follow-up report when the investigation is complete and when more information becomes available.For this reason, terumo references evaluation conclusion code 11.
Event or Problem Description
The user facility reported to terumo cardiovascular that during cardiopulmonary bypass; after initiating extracorporeal circulation, blood leakage was detected from the shunt sensor.The shunt sensor line was clamped off with forceps, and the procedure was continued without measuring with the shunt sensor.No health consequence or impact to patient.The product was not changed out.The procedure was completed successfully.There was an unknown amount of blood loss.
Additional Manufacturer Narrative
This follow-up report is submitted to fda in accord with applicable regulations ¿ and as indicated by terumo cardiovascular systems in the initial report submitted to the fda on march 27, 2026.Upon further investigation of the reported event, the following information is new and/or changed: d9 (device availability - added date returned to manufacturer), g3 (date received by manufacturer), g6 (indication that this is a follow-up report), h2 (follow-up due to additional information and device evaluation), h3 (device evaluated by manufacturer), h6 (identification of evaluation codes 10, 11, 3331, 4210, 4307).The returned sample was visually inspected upon receipt, during which it was noted that the sparger assembly and white luer cap were not returned with the unit.A white luer cap was added to the sample for testing.The returned sample was then leak tested, as received by connecting with a calibrated manometer, submerged into a water bath, and pressurized up to 1030 mmhg and a leak was noted at approximately 510 mmhg of pressure from the large venting luer.The large venting luer was loosened and re-tightened by hand.The sample was then leak tested a second time and a leak was noted at the intersection of straight and curved weld line.A retention sample from the same lot number was obtained and tested.The retention sample was pressurized with air up to 1030 mmhg, submerged in a water bath, and observed for any leaks.No leaks were noted.All available information has been placed on file in quality management for appropriate tracking, trending, and follow-up.

• Brand Name: CDI SHUNT SENSOR
• Common Device Name: MONITOR, BLOOD-GAS, ON-LINE, CARDIOPULMONARY BYPASS
• Manufacturer (Section D): TERUMO CARDIOVASCULAR SYSTEMS CORPORATION; 125 blue ball road; elkton MD 21921
• Manufacturer (Section G): SAME
• Manufacturer Contact: douglas patton ; 125 blue ball road; elkton, MD 21921 ; 7346634145
• MDR Report Key: 24716330
• Report Number: 1124841-2026-00030
• Device Sequence Number: 5664717
• Product Code: DRY
• UDI-Device Identifier: 00699753160767
• UDI-Public: (01)00699753160767(17)260731(10)5K18E
• Combination Product (Y/N): N
• Initial Reporter Country: JA
• PMA/510(K) Number: K133658
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Other,Foreign,Health Professional,User Facility,Company Representative
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 05/22/2026

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
• Operator of Device: Health Professional
• Device Expiration Date: 07/31/2026
• Device Model Number: CDI510H
• Device Catalogue Number: N/A
• Device Lot Number: 5K18E
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Is the Reporter a Health Professional?: Yes
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 03/03/2026
• Supplement Date Received by Manufacturer: 04/30/2026
• Initial Report FDA Received Date: 03/30/2026
• Supplement Report FDA Received Date: 05/22/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 09/09/2025
• 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
• Patient Sex: Unknown