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    • 35. 发明授权
    • Disposable array-type micro injection needle head and prefilled syringe
    • US10058691B2
    • 2018-08-28
    • US14352987
    • 2012-08-07
    • Ruifeng YueYan Wang
    • Ruifeng YueYan Wang
    • A61M5/00A61M37/00A61M5/28A61M5/32
    • A61M37/0015A61M5/283A61M5/3298A61M2037/0023A61M2037/003A61M2037/0061F04C2270/0421
    • The invention discloses a disposable array-type micro injection needle head which comprises a lower needle seat which is configured as a cylindrical column opening at one end and having a top cap at the other end and which is configured to be connected with an injection reservoir; an upper needle seat which is located above the top cap of the lower needle seat with a cavity formed between the upper needle seat and the top cap; a through-hole formed in the top cap which is configured for communicating the cylindrical column with the cavity, wherein a pipetting needle is mounted in the through-hole which has one end communicated with the cavity and the other end located in the cylindrical column and which is configured for extracting injection from the injection reservoir into the cavity; and at least two needle tubes mounted in the upper needle seat, each of which has one end comprising a needle tip for puncturing and for injecting the injection and the other end for mounting on the upper needle seat and for communicating with the cavity. The needle head can be used directly on existing insulin pen, or the cylindrical column can be provided inside it with an injection reservoir to form a disposable prefilled syringe. By using a plurality of thin, short needle tubes for injecting simultaneously, vertical hypodermic injection of medicines such as insulin can be preformed rapidly, leakproof, painlessly, safely and conveniently at various sites of a human body, without needing to pinch skin, while a potential trouble that the medicines be injected into muscles can be avoided. Patient adherence to the treatment regimen and the treatment effect are improved.
    • 37. 发明申请
    • STIMULI RESPONSIVE COMPOSITIONS FOR IRON CHELATION
    • 用于钢铁焊接的刺激性反应组合物
    • US20160184344A1
    • 2016-06-30
    • US14876740
    • 2015-10-06
    • May Pang XiongZhi LiuYan Wang
    • May Pang XiongZhi LiuYan Wang
    • A61K31/785C08F220/28C08F230/04
    • A61K31/785A61K47/58A61K47/61A61K47/6903C08B37/0012C08B37/0015C08F2220/282C08L5/16
    • The present technology provides new compositions comprising at least one cross-linked co-polymer. In some embodiments, the polyacrylamide co-polymer comprises water soluble subunits, cross-linking subunits, and iron chelating subunits. In other embodiments, the co-polymer comprises water soluble units, cross-linking subunits, and substituted subunits, which can be conjugated with iron-chelating agents. When these new particles are exposed to certain environments, such the presence of strong acids or oxidation agents, these particles are capable of breaking up so that the iron chelating agents can chelate iron or other metals from their environments. Methods to prepare these new compositions are also provided. These compositions or compositions comprising nanogels of the present technology may be used to treat metal overload conditions such as iron overload resulting from chronic transfusions.
    • 本技术提供了包含至少一种交联共聚物的新组合物。 在一些实施方案中,聚丙烯酰胺共聚物包含水溶性亚基,交联亚基和铁螯合亚基。 在其它实施方案中,共聚物包含可与铁螯合剂缀合的水溶性单元,交联亚单元和取代亚单元。 当这些新的颗粒暴露于某些环境,如强酸或氧化剂的存在时,这些颗粒能够分解,使得铁螯合剂可以从其环境中螯合铁或其它金属。 还提供了制备这些新组合物的方法。 包含本技术的纳米凝胶的这些组合物或组合物可用于治疗由慢性输血引起的金属过载状况,例如铁超载。