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    • 3. 发明申请
    • Processes For Mixing Fibrinogen and Thrombin Under Conditions That Minimize
Fibrin Formation While Preserving Fibrin-forming Ability, Compositions Produced
by These Processes, and the Use Thereof
    • 在保持纤维蛋白形成能力的同时使纤维蛋白形成最小化的条件下混合纤维蛋白原和凝血酶的过程,由这些方法产生的组合物及其用途
    • US20160106883A1
    • 2016-04-21
    • US14884333
    • 2015-10-15
    • STB, Ltd.
    • Martin MacPheeJerry KanellosBelinda WilmerDawson BeallShirley Miekka
    • A61L26/00
    • A61L26/0047A61L15/32A61L15/38A61L15/42A61L26/0042A61L2300/418A61L2400/04
    • Fibrin Sealant products are used for topical hemostasis and tissue adherence. They are composed of two main reagents, fibrinogen and thrombin. When mixed in solution fibrinogen is converted to fibrin upon the addition of activated thrombin. Therefore typically these two components are stored separately in a lyophilized or liquid state, and mixed, upon or immediately before, application to a patient. While effective, these products require significant preparation that must take place immediately before application, thus delaying treatment and limiting the use of these haemostatic products to the treatment of mild forms of low pressure and low volume bleeding. Attempts to eliminate this delay and expand the usefulness and effectiveness of these products have resulted in products produced by processes that require the separation of these components and their deposition in distinct layers within the product. The processes described herein permit the mixing of fibrinogen and thrombin during product manufacture, without excessive fibrin formation. The resulting ‘pre-mixed’ fibrin sealant material can then be stored in either a frozen or dried state, or suspended in a non-aqueous environment. Activation of the material to form therapeutic fibrin sealant is accomplished by permitting the product to thaw (if frozen) or by the addition of water or other aqueous fluid, including blood, or other bodily fluids, if dried or suspended in a non-aqueous environment. The resulting material can be used to make a product in which a pre-mixed form of activatable fibrin sealant is a desired component.
    • 纤维蛋白密封剂产品用于局部止血和组织粘连。 它们由两种主要试剂,纤维蛋白原和凝血酶组成。 当溶液混合时,加入活化凝血酶后,纤维蛋白原转化为纤维蛋白。 因此,通常这两种组分分开储存在冻干或液体状态,并在施用于患者之后或之前混合。 这些产品虽然有效,但需要在施用之前立即进行重大的准备,从而延缓治疗并限制使用这些止血产品来治疗轻度形式的低压和低体积出血。 消除这种延迟并扩大这些产品的有用性和有效性的尝试导致了由需要分离这些组分的工艺产生的产品及其在产品内的不同层中的沉积。 本文所述的方法允许在产品制造期间混合纤维蛋白原和凝血酶,而不会形成过多的纤维蛋白。 所得到的“预混合”纤维蛋白密封剂材料然后可以以冷冻或干燥状态储存,或悬浮在非水性环境中。 用于形成治疗性纤维蛋白密封剂的材料的活化通过允许产品解冻(如果冷冻)或通过加入包含血液或其它体液的水或其它含水流体(如果干燥或悬浮在非水环境中) 。 所得材料可用于制备其中预混合形式的可活化纤维蛋白密封剂是所需组分的产品。