Methods and systems for determining platelet concentration
Disclosed are a method for determining a platelet concentration of a blood sample, a hematology system (100) and a storage medium. The method for determining a platelet concentration in a blood sample includes: forming a first suspension by mixing a first aliquot of the blood sample with a diluent; forming a second suspension by mixing a second aliquot of the blood sample with a lytic agent and a fluorescent dye to lyse red blood cells and stain white blood cells; measuring DC impedance signals of the first suspension passing through an aperture; measuring light scatter signals and fluorescent signals of the second suspension passing through an optical flow cell (20); analyzing DC impedance signals of the first suspension to obtain a first platelet distribution; analyzing light scatter signals and fluorescent signals of the second suspension to differentiate platelets from white blood cells and to obtain a second platelet distribution; and determining platelet data, such as the platelet concentration of the blood sample using the first and second platelet distributions..
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Patent| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Europäisches Patentamt - (2023) vom: 12. Dez. Zur Gesamtaufnahme - year:2023 |
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| Sprache: |
Englisch |
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| Beteiligte Personen: |
QI HUAN [VerfasserIn] |
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| Links: |
Volltext [kostenfrei] |
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| Anmerkungen: |
Source: www.epo.org (no modifications made), First posted: 2023-12-12, Last update posted on www.tib.eu: 2024-01-18, Last updated: 2024-01-26 |
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| Patentnummer: |
US11841358 |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
EPA018857612 |
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| 520 | |a Disclosed are a method for determining a platelet concentration of a blood sample, a hematology system (100) and a storage medium. The method for determining a platelet concentration in a blood sample includes: forming a first suspension by mixing a first aliquot of the blood sample with a diluent; forming a second suspension by mixing a second aliquot of the blood sample with a lytic agent and a fluorescent dye to lyse red blood cells and stain white blood cells; measuring DC impedance signals of the first suspension passing through an aperture; measuring light scatter signals and fluorescent signals of the second suspension passing through an optical flow cell (20); analyzing DC impedance signals of the first suspension to obtain a first platelet distribution; analyzing light scatter signals and fluorescent signals of the second suspension to differentiate platelets from white blood cells and to obtain a second platelet distribution; and determining platelet data, such as the platelet concentration of the blood sample using the first and second platelet distributions. | ||
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| 650 | 4 | |a C12Q: Measuring or testing processes involving enzymes, nucleic acids or microorganisms (immunoassay g01n0033530000); compositions or test papers therefor; processes of preparing such compositions; condition-responsive control in microbiological or enzymological processes | |
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