|
A user facility reported that a dialyzer blood leak occurred three minutes after the initiation of the patient¿s hemodialysis (hd) treatment.The blood leak was noted as being an internal blood leak.The leak was visually observed inside the dialyzer.The machine, a fresenius 2008t machine, did not alarm with a blood leak alarm.Blood leak test strips were used and tested positive for the presence of blood.There was no defect or damage noted on the dialyzer.The patient¿s estimated blood loss (ebl) was approximately 100-300 ml.There was no patient injury or medical intervention required as a result of this event.The patient¿s treatment was completed successfully.
|
|
An engineering and risk-based evaluation of the event was performed.The primary risk control measures in the machine are minor and major blood leak alarms.The minor blood leak and major blood leak alarms trigger an audible and visual alarm, and the major blood leak alarm also triggers a stop to the blood pump and a clamp applied to the venous return line, which stops blood circuit flow and ultrafiltration.A secondary risk control is the alarms test, included in the 2008t machine operational manual as a pre-treatment machine setup test to be conducted by the user prior to patient treatment.The instructions provide multiple methods to perform the self-test, which confirms functionality of multiple alarms, relevant for this investigation, it specifically includes a verification that the blood leak alarm sensor is operating.In addition, the device history record (dhr) was reviewed and specific tests during test & calibration, final test, the alarm override function was operating correctly and the self-test check was operating correctly.The design controls, design verification, and individual machine testing conducted by both fresenius and the clinic show no evidence that the machine failed to perform as intended.Based on the engineering and risk-based evaluation of the events reported within the complaint(s), it has been concluded no device malfunction, nonconformance, or systemic quality issue was identified.The 2008t machine/system was concluded to be performing as designed with respect to blood leaks into the dialysate not triggering the blood leak alarms, major or minor.
|
|
A user facility reported that a dialyzer blood leak occurred three minutes after the initiation of the patient¿s hemodialysis (hd) treatment.The blood leak was noted as being an internal blood leak.The leak was visually observed inside the dialyzer.The machine, a fresenius 2008t machine, did not alarm with a blood leak alarm.Blood leak test strips were used and tested positive for the presence of blood.There was no defect or damage noted on the dialyzer.The patient¿s estimated blood loss (ebl) was approximately 100-300 ml.There was no patient injury or medical intervention required as a result of this event.The patient¿s treatment was completed successfully.
|