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    • 5. 发明授权
    • Lysing reagent system for isolation, identification and/or analysis of
leukocytes from whole blood samples
    • 用于从全血样品中分离,鉴定和/或分析白细胞的裂解试剂系统
    • US5155044A
    • 1992-10-13
    • US808041
    • 1991-12-12
    • Stephen L. LedisHarold R. CrewsTimothy J. FischerTed Sena
    • Stephen L. LedisHarold R. CrewsTimothy J. FischerTed Sena
    • G01N33/50G01N33/569
    • G01N33/5094G01N33/56972Y10T436/101666Y10T436/107497Y10T436/108331
    • A method and reagent system are disclosed for the rapid isolation, identification and/or analysis of leukocytes from a whole blood sample. The method and reagent system of this invention has application to any environment in which the study and/or analysis of the leukocyte fraction of whole blood requires their isolation in their native or near native state. One of the environments in which this invention can be used to advantage is in the performance of white cell differentiation on automated instrumentation designed for that purpose. In one of the preferred embodiments of this invention, the lytic reagent can contain a mixture of both formic and acetic acid, with the formic acid comprising the major component thereof and the acetic acid being present in only minor quantities, (if at all). This reagent system is used to selectively effect stromatolysis of red blood cells and create subtle modifications to the leukocyte population to enable their automated differentiation into five (5) sub-populations. The advantage and uniqueness of this reagent system is the surprising speed at which it is able to effect the foregoing objectives (generally less than 10 seconds at room temperature) and the ability to further differentiate the leukocyte population (notably, the granulocyte population). Following stromatolysis, a quenching agent is added to retard the reactivity of the lytic reagent system and, thus, inhibit any further dramatic changes to the leukocyte population. The treatment of the whole blood sample in the foregoing manner is further unique in that the leukocyte fraction of the sample has retained its characteristic immunochemical response.
    • 公开了用于从全血样品快速分离,鉴定和/或分析白细胞的方法和试剂系统。 本发明的方法和试剂系统适用于其中全血白细胞分数的研究和/或分析需要在其天然或接近天然状态下分离的任何环境。 本发明可用于有利的环境之一是在为此设计的自动化仪器上实现白细胞分化。 在本发明的一个优选实施方案中,溶解剂可以含有甲酸和乙酸的混合物,其中甲酸包含其主要组分,乙酸仅以少量存在(如果有的话)。 该试剂系统用于选择性地影响红细胞的间质分解,并对白细胞群体产生微妙的修饰,使其能够自动分化为五(5)个亚种群。 该试剂系统的优点和独特之处在于其能够达到上述目的(通常在室温下通常小于10秒)以及进一步区分白细胞群体(特别是粒细胞群体)的能力的惊人速度。 在层间裂解后,加入淬灭剂以延缓溶解试剂体系的反应性,从而抑制白细胞群体的任何进一步的剧烈变化。 以上述方式对全血样品的处理是进一步的独特之处在于,样品的白细胞部分保持了其特有的免疫化学应答。
    • 6. 发明授权
    • Multi-purpose blood diluent and lysing agent for differential
determination of lymphoid-myeloid population of leukocytes
    • 多用途血液稀释液和裂解剂用于差异测定白细胞淋巴样骨髓细胞群体
    • US4346018A
    • 1982-08-24
    • US159782
    • 1980-06-16
    • James H. CarterStephen L. LedisHarold R. Crews
    • James H. CarterStephen L. LedisHarold R. Crews
    • G01N33/48G01N15/12G01N33/49G01N33/50G01N33/72
    • G01N33/721G01N33/5094G01N2015/0069Y10T436/107497
    • An isotonic multipurpose blood diluent, and a method for use of this diluent with a weak lysing reagent system which is especially suitable for routine enumeration of traditional hemogram values, and also the determination of lymphoid-myeloid populations of leukocytes, particularly in automatic particle counting systems.This blood diluent is capable of affording accurate, reproducible test results. It is an osmotically balanced aqueous solution of preselected pH containing Procaine hydrochloride for maintaining erythrocyte morphology during operation, N-(2-acetamido)iminodiacetic acid (ADA) as a blood cell stabilizing agent, and bacteriostatic agents including sodium 1-hydroxypyridine-2-thione, dimethylolurea and chlorhexidene diacetate which, together with the ADA, allow preferential determination of myeloid-lymphoid leukocytes, and other hematological values.The lysing agent is a mixture of an aqueous solution of at least one quaternary ammonium salt having surface active properties, and an alkali metal cyanide.
    • 一种等渗多用途血液稀释剂,以及一种使用该稀释液与弱溶解试剂系统的方法,该方法特别适用于常规计数传统的血红蛋白值,以及白细胞淋巴样骨髓细胞的测定,特别是在自动粒子计数系统 。 该血液稀释剂能够提供准确,可重复的测试结果。 它是含有普鲁卡因盐酸盐的预选pH的渗透平衡水溶液,用于在手术期间保持红细胞形态,作为血细胞稳定剂的N-(2-乙酰氨基)亚氨基二乙酸(ADA))和抑菌剂包括1-羟基吡啶-2- 硫酮,二羟甲基脲和氯己酮二乙酸酯,其与ADA一起允许优先测定骨髓淋巴样白血球和其他血液学值。 裂解剂是具有表面活性的至少一种季铵盐的水溶液和碱金属氰化物的混合物。
    • 7. 发明授权
    • Multi-purpose blood diluent and lysing agent for differential
determination of lymphoid-myeloid population of leukocytes
    • 多用途血液稀释液和裂解剂用于差异测定白细胞淋巴样骨髓细胞群体
    • US4962038A
    • 1990-10-09
    • US735245
    • 1985-05-17
    • James H. CarterStephen L. LedisHarold R. Crews
    • James H. CarterStephen L. LedisHarold R. Crews
    • G01N15/12G01N33/50G01N33/72
    • G01N33/5094G01N15/1209G01N33/721Y10T436/10Y10T436/101666Y10T436/107497Y10T436/108331
    • An isotonic multipurpose blood diluent, and a method for use of this diluent with a weak lysing reagent system which is especially suitable for routine enumeration of traditional hemogram values, and also the determination of lymphoid-myeloid populations of leukocytes, particularly in automatic particle counting systems.This blood diluent is capable of affording accurate, reproducible test results. It is an osmotically balanced aqueous solution of preselected pH containing Procaine hydrochloride for maintaining erythrocyte morphology during operation, N-(2-acetamido)iminodiacetic acid (ADA) as a blood cell stabilizing agent, and bacteriostatic agents including sodium 1-hydroxypyridine-2-thione, and dimethylolurea which, together with the ADA, allow preferential determination of myeloid-lymphoid leukocytes, and other hematological values.The lysing agent is a mixture of an aqueous solution of at least one quaternary ammonium salt having surface active properties, and an alkali metal cyanide.
    • 一种等渗多用途血液稀释剂,以及一种使用该稀释液与弱溶解试剂系统的方法,该方法特别适用于常规计数传统的血红蛋白值,以及白细胞淋巴样骨髓细胞的测定,特别是在自动粒子计数系统 。 该血液稀释剂能够提供准确,可重复的测试结果。 它是含有普鲁卡因盐酸盐的预选pH的渗透平衡水溶液,用于在手术期间保持红细胞形态,作为血细胞稳定剂的N-(2-乙酰氨基)亚氨基二乙酸(ADA))和抑菌剂包括1-羟基吡啶-2- 硫醇和二羟甲基脲,其与ADA一起允许优先测定骨髓淋巴样白血球和其他血液学值。 裂解剂是具有表面活性的至少一种季铵盐的水溶液和碱金属氰化物的混合物。