Abstract：Clinical blood test is the most common and basic test project in the laboratory. Whole blood cell analysis has a very
important influence on the clinician’s judgment of the disease. To provide a reference for the maintenance of similar equipment, two
cases of maintenance failures in the Hessian-Meikang XN-2000 blood analyzer with a white blood cell (WBC) count of 0 and RBC
sheath fluid suction abnormalities were analyzed. The fault that WBC count is 0 was caused by the fault of DCSV37 at the rear end of
the flow pool, and the fault was solved after replacing the electromagnetic valve. Meanwhile, the abnormal suction of the red blood
cell sheath flow was caused by the blockage of the front limit tube of the diaphragm pump, and the fault was removed after cleaning
the foreign matter inside the restrictor. For this kind of fault, the maintenance personnel must be familiar with the water and gas road
map of the machine and fully understand the working principle of the machine, so that the fault can be quickly checked against the
water and gas road map when the fault occurs, and the maintenance efficiency can be improved logically. At the same time, it also
provides solutions for other faults.
曲超. 希森美康XN-2000全自动模块式血液体液分析仪工作原理及故障维修[J]. 中国医疗设备, 2020, 35(1): 174-177.
QU Chao. Working Principle and Fault Maintenance of Sysmex XN-2000 Automatic
Modular Blood and Body Fluid Analyzer. China Medical Devices, 2020, 35(1): 174-177.
