Patent ID: 11874212
Assignee: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G  Y | IPC G

Claim 9:
10. A blood analysis system, comprising:
a sample treatment device comprising at least one mixing chamber, which is configured to mix a first aliquot of a blood sample with a diluent agent to prepare a first test sample, and mix a second aliquot of the blood sample with a lytic reagent to prepare a second test sample;
a sample detection device comprising an electrical impedance detection unit and an optical detection unit, wherein the electrical impedance detection unit comprises an aperture and an electrical impedance detector, and the electrical impedance detector is configured to detect electrical impedance signals of the first test sample passing through the aperture; the optical detection unit comprises an optical flow chamber, a light source and an optical detector, wherein the optical flow chamber is in fluid communication with the mixing chamber, the light source is configured to direct a light beam to the optical flow chamber, and the optical detector is configured to detect at least two types of optical signals of the second test sample passing through the optical flow chamber;
a data analysis module comprising a signal acquisition module, a classification and counting module and an alarm module;
wherein the signal acquisition module is configured to acquire the electrical impedance signals of the first test sample, and acquire the at least two types of optical signals of the second test sample;
the classification and counting module is configured to acquire first volume distribution data of the first test sample based on the electrical impedance signals, generate a scattergram of the second test sample based on the at least two types of optical signals, differentiate a white blood cell region and a non-white blood cell region in the scattergram based on the at least two types of optical signals, and acquire second volume distribution data of the second test sample based on the non-white blood cell region; and
the alarm module is configured to acquire red blood cell detection data of the blood sample, determine whether the blood sample may contain schistocytes based on the first volume distribution data, the second volume distribution data and the red blood cell detection data, and provide an alarm for indicating that the blood sample may contain schistocytes if the blood sample is determined to contain schistocytes.