TERUMO CARDIOVASCULAR SYSTEMS CORPORATION VALVE, O.P.S BULK, N-S; OVERPRESSURE SAFETY VALVE
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Model Number LN130B |
Device Problem
Leak/Splash (1354)
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Patient Problem
Blood Loss (2597)
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Event Date 08/15/2017 |
Event Type
malfunction
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Manufacturer Narrative
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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 (b)(4).
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Event Description
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The user facility reported to terumo cardiovascular that during cardiopulmonary bypass, the ops valve in the vent line was leaking blood when cardioplegia was given via an aortic root cannula with vent line attached.*amount of blood loss is unknown.*product was changed out.*procedure completed successfully.
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Manufacturer Narrative
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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 sep 21, 2017.(b)(4).All available information has been placed on file in quality management for appropriate tracking, trending, and follow-up.
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Manufacturer Narrative
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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 october 12, 2017.(b)(4).Visual inspection was performed on the returned sample, during which no anomalies were noted.Ops valves are subject to a 100% leak test, which includes five different tests the units are run through to ensure there are no leaks and both the umbrellas and duckbills are functioning properly.The returned sample was manually run through each of these tests to determine if the umbrellas were functioning properly; all tests passed.A retention sample from the same lot numbers combination was run through the same tests and confirmed to pass each of the 5 leak tests.Simulation testing of the ops valve in an aortic root vent line found the ops valve to leak if the vent line was not properly clamped during cardioplegia delivery, and there was possible pressure buildup in the heart causing a positive pressure buildup in the vent line.The positive pressure relief valve then opened to release the pressure, and cause the ops valve to leak.All available information has been placed on file in quality management for appropriate tracking, trending, and follow-up.
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