The user facility reported to terumo cardiovascular that prior to cardiopulmonary bypass, during setup, the arm is not stable.End of the arm to which the stabilizer is fixed is not stable and no longer holds the stabilizer.It is unknown if there was a delay in the procedure, if there was blood loss and if there was any effect on the patient or results of the surgery.Due to the unknown information for this event, it is being reported.Terumo continues to attempt to gain more information regarding this event from the user facility.
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The returned sample was visually inspected, during which it was discovered that the expiration date had passed prior to the event date of this complaint.Upon evaluation of the sample, it was confirmed that the collet of the arm would not tighten around a ball attachment of an atlas or titan as it should when the cable wasn't tightened.Once the cable was tightened, as it would be during use, the attachment was completely stable within the arm.As the hercules arm is a reusable device, and the arm allows disposable attachments and stabilizers to be installed and removed to the collet, it is likely that damage occurred to the collet, pushing the prongs out and over time, moving the prongs outward so that they no longer had a tight fit around the ball attachments.All available information has been placed on file in quality management for appropriate tracking, trending, and follow-up.
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