Method for producing a stable polymerized hemoglobin blood-substitute
    3.
    发明授权
    Method for producing a stable polymerized hemoglobin blood-substitute 失效
    生产稳定聚合血红蛋白血液替代品的方法

    公开(公告)号:US5955581A

    公开(公告)日:1999-09-21

    申请号:US484775

    申请日:1995-06-07

    摘要: A method for producing a stable polymerized hemoglobin blood-substitute from blood. The method of this invention includes mixing blood with an anticoagulant to form a blood solution, washing the red blood cells in the blood solution and then separating the washed red blood cells from the white blood cells. This method also includes disrupting the red blood cells to release hemoglobin and form a hemoglobin solution, which is then treated by high performance liquid chromatography to form a hemoglobin eluate. The hemoglobin eluate is then deoxygenated, contacted with a first sulfhydryl compound to form an oxidation-stabilized deoxygenated hemoglobin solution, and mixed with a cross-linking agent to form a polymerization reaction mixture, which is then polymerized. The polymerized hemoglobin solution is then diafiltered with a physiologic solution and with a sulfhydryl compound, whereby the polymerized hemoglobin solution is made physiologically acceptable, and whereby the sulfhydryl compound scavenges oxygen, to form a stable polymerized hemoglobin blood-substitute.

    摘要翻译: 从血液制备稳定的聚合血红蛋白血液代用品的方法。 本发明的方法包括将血液与抗凝血剂混合以形成血液溶液,洗涤血液中的红细胞,然后从白细胞中分离洗涤的红细胞。 该方法还包括破坏红细胞以释放血红蛋白并形成血红蛋白溶液,然后通过高效液相色谱法处理以形成血红蛋白洗脱液。 然后将血红蛋白洗脱液脱氧,与第一巯基化合物接触以形成氧化稳定的脱氧血红蛋白溶液,并与交联剂混合以形成聚合反应混合物,然后将其聚合。 然后将聚合的血红蛋白溶液用生理溶液和巯基化合物进行渗滤,由此将聚合的血红蛋白溶液制成生理学上可接受的,由此巯基化合物清除氧气,形成稳定的聚合血红蛋白血液替代品。

    Method for producing a purified hemoglobin product
    4.
    发明授权
    Method for producing a purified hemoglobin product 失效
    纯化血红蛋白产品的制造方法

    公开(公告)号:US6150507A

    公开(公告)日:2000-11-21

    申请号:US113953

    申请日:1998-07-10

    摘要: A method for producing a purified hemoglobin product includes loading a hemoglobin solution onto an anion exchange chromatography column. At least one tris(hydroxymethyl) aminomethane acetate buffer solution is injected into the column. The buffer solution has a pH lower than that of the column, whereby a purified hemoglobin product elutes from the column. In one embodiment, the hemoglobin solution initially can be equilibrated at a pH of greater than about 8.7. In another embodiment, contaminants can be removed by equilibrating the column with at least about eleven column void volumes of buffer solution at an intermediate pH of between about 8.2 and about 8.6, to thereby form a stepped pH gradient. In still another embodiment, all buffer solutions employed are tris(hydroxymethyl) aminomethane acetate.

    摘要翻译: 制备纯化血红蛋白产品的方法包括将血红蛋白溶液加载到阴离子交换色谱柱上。 将至少一种三(羟甲基)氨基甲酸乙酯缓冲溶液注入柱中。 缓冲溶液的pH值低于色谱柱,纯化的血红蛋白产物从柱中洗脱出来。 在一个实施方案中,血红蛋白溶液最初可以在大于约8.7的pH下平衡。 在另一个实施方案中,可以通过在约8.2至约8.6之间的中间pH下用至少约十一个柱空隙体积的缓冲溶液平衡柱来除去污染物,从而形成阶梯式pH梯度。 在另一个实施方案中,所用的所有缓冲溶液是三(羟甲基)氨基甲烷乙酸酯。

    Ultra pure hemoglobin solutions and blood substitutes
    5.
    发明授权
    Ultra pure hemoglobin solutions and blood substitutes 失效
    超纯血红蛋白溶液和血液代用品

    公开(公告)号:US5905141A

    公开(公告)日:1999-05-18

    申请号:US838514

    申请日:1997-04-08

    摘要: A blood substitute and plasma expander comprising a cross-linked, substantially endotoxin-free hemoglobin solution and process for preparing same. The process comprises fractionating whole blood, separating out a stromal-free, sterile hemoglobin solution, chromatographically separating endotoxins from said hemoglobin solution and crosslinking the resulting endotoxin-free hemoglobin solution.

    摘要翻译: 一种血液替代物和等离子体膨胀器,其包含交联的,基本上不含内毒素的血红蛋白溶液及其制备方法。 该方法包括分离全血,分离出无基质的无菌血红蛋白溶液,将内毒素与所述血红蛋白溶液进行色谱分离,并交联得到的无内毒素的血红蛋白溶液。

    Ultra pure hemoglobin solutions and blood-substitutes
    8.
    发明授权
    Ultra pure hemoglobin solutions and blood-substitutes 失效
    超纯血红蛋白溶液和血液代用品

    公开(公告)号:US5296465A

    公开(公告)日:1994-03-22

    申请号:US820153

    申请日:1992-01-13

    摘要: A blood substitute and plasma expander comprising a cross-linked, substantially endotoxin-free hemoglobin solution and process for preparing same. The process comprises fractionating whole blood, separating out a stromal-free, sterile hemoglobin solution, chromatographically separating endotoxins from said hemoglobin solution and crosslinking the resulting endotoxin-free hemoglobin solution.

    摘要翻译: 一种血液替代物和等离子体膨胀器,其包含交联的,基本上不含内毒素的血红蛋白溶液及其制备方法。 该方法包括分离全血,分离出无基质的无菌血红蛋白溶液,将内毒素与所述血红蛋白溶液进行色谱分离,并交联得到的无内毒素的血红蛋白溶液。

    Increasing function of organs having reduced red blood cell flow
    9.
    发明授权
    Increasing function of organs having reduced red blood cell flow 失效
    增加红细胞流量减少的器官功能

    公开(公告)号:US06541449B1

    公开(公告)日:2003-04-01

    申请号:US09749504

    申请日:2000-12-26

    IPC分类号: A61K3714

    摘要: The present invention relates to a method of therapeutically, or prophylactically, treating a vertebrate to increase tissue oxygenation, or maintain issue oxygenation, in tissue of a vertebrate wherein the tissue has a reduced red blood cell flow, and wherein the vertebrate has a normovolemic blood volume and at least a normal systemic vascular resistance. The method comprises introducing into the circulatory system of the vertebrate at least one dose of hemoglobin.

    摘要翻译: 本发明涉及一种在脊椎动物组织中治疗或预防性地治疗脊椎动物以增加组织氧合或维持问题氧合的方法,其中所述组织具有减少的红细胞流,并且其中所述脊椎动物具有正常血容量的血液 体积和至少一个正常的全身血管阻力。 该方法包括向脊椎动物的循环系统中引入至少一种剂量的血红蛋白。