Investigation summary: a 20019e7d product was not available for investigation; however the customer confirmed that the complaint sample was from lot 21075725.
From the information provided by the customer it appears that backflow of blood occurred from the patient, and leakage was observed from the smartsite.
As part of the feedback the customer provided a video of the affected smartsites; analysis of the video confirmed the customer's experience as leakage was observed from the piston of the smartsite.
Further information provided by the customer also indicates that the smartsite was oval in shape.
The details of this feedback were forwarded to the manufacturing site for investigation.
A review of the production records for lot 21075725 did not identify any in-process testing failures or quality deviations which may have resulted in a report of this nature.
Please note, the root cause of the oval shape is exposure of the smartsite to an external heat source that brings the component temperature above 60°c.
The piston head of the smartsite is oval shaped therefore when the round fla component is placed over it, the piston opening is squeezed shut in order to create a seal.
Under excessive heat conditions, the fla material can soften, and as the piston pushes back on the inside, it can reshape the fla to conform to the original oval shape of the piston head.
Previous investigations have not found a potential root cause for this level of excess heat as a result of any stage of the manufacturing or sterilization processes at the manufacturing site.
A review of the customer feedback database indicates that there is no increased trend for oval smartsite valves.
It is possible that there is a local environmental factor that has caused the product to reach the elevated temperature required to cause this issue (e.
G.
During storage or transit).
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