Lanthanide complex formulations
    2.
    发明授权

    公开(公告)号:US10576169B2

    公开(公告)日:2020-03-03

    申请号:US15531431

    申请日:2015-11-27

    申请人: GE HEALTHCARE AS

    摘要: The present invention relates to a method of removal of metal ion impurities, such as calcium, from lanthanide metal complexes of macrocyclic chelators. The method uses a scavenger resin to remove metal ions, displaced from chelator, by an excess of lanthanide ions. Also provided is a method of preparation of MRI contrast agents, from the purified lanthanide metal complex, by the addition of a defined excess chelator.

    Formulations of Metal Complexes
    6.
    发明申请

    公开(公告)号:US20170258944A1

    公开(公告)日:2017-09-14

    申请号:US15531430

    申请日:2015-11-27

    申请人: GE HEALTHCARE AS

    IPC分类号: A61K49/10

    摘要: The present invention relates to a method of preparation of formulations of gadolinium metal complexes of the macrocyclic chelator DOTA, which further comprise a small excess of free DOTA. The method uses controlled conditions such that excess gadolinium is present as a precipitate of gadolinium oxide, with filtration to remove the excess, prior to the addition of a defined excess of DOTA chelator. Also provided is a method of preparation of MRI contrast agents based on Gd-DOTA.

    CONTRAST AGENTS
    9.
    发明申请
    CONTRAST AGENTS 有权
    对比剂

    公开(公告)号:US20150191422A1

    公开(公告)日:2015-07-09

    申请号:US14568513

    申请日:2014-12-12

    申请人: GE HEALTHCARE AS

    发明人: MIKKEL THANING

    IPC分类号: C07C237/46 A61K49/04

    摘要: The present invention relates to a class of compounds and to diagnostic compositions containing such compounds where the compounds are iodine containing compounds. More specifically the iodine containing compounds are chemical compounds containing two linked iodinated phenyl groups of the general formula R—N(CHO)—X—N(R3)—R wherein X denoted an optionally substituted alkylene group, R3 denotes a hydrogen atom or an acyl function and each R denotes a triiodinated phenyl residue further substituted by hydrophilic moieties.The invention also relates to the use of such diagnostic compositions as contrast agents in diagnostic imaging and in particular in X-ray imaging, and to contrast media containing such compounds.

    摘要翻译: 本发明涉及一类化合物和含有这些化合物的诊断组合物,其中化合物是含碘化合物。 更具体地说,含碘化合物是含有通式R-N(CHO)-X-N(R3)-R的两个连接的碘化苯基的化合物,其中X表示任选取代的亚烷基,R 3表示氢原子或 酰基官能团,每个R表示进一步被亲水部分取代的三碘化苯基残基。 本发明还涉及这种诊断组合物作为造影剂在诊断成像中,特别是在X射线成像中的用途,以及含有这些化合物的造影剂。

    Contrast agents
    10.
    发明授权
    Contrast agents 有权
    对比剂

    公开(公告)号:US08920780B2

    公开(公告)日:2014-12-30

    申请号:US12665792

    申请日:2008-07-04

    申请人: Mikkel Thaning

    发明人: Mikkel Thaning

    IPC分类号: A61K49/00 A61K49/04

    摘要: The present invention relates to a class of compounds and to diagnostic compositions containing such compounds where the compounds are iodine containing compounds. More specifically the iodine containing compounds are chemical compounds containing two linked iodinated phenyl groups of the general formula R—N(CHO)—X—N(R3)—R wherein X denoted an optionally substituted alkylene group, R3 denotes a hydrogen atom or an acyl function and each R denotes a triiodinated phenyl residue further substituted by hydrophilic moieties. The invention also relates to the use of such diagnostic compositions as contrast agents in diagnostic imaging and in particular in X-ray imaging, and to contrast media containing such compounds.

    摘要翻译: 本发明涉及一类化合物和含有这些化合物的诊断组合物,其中化合物是含碘化合物。 更具体地说,含碘化合物是含有通式R-N(CHO)-X-N(R3)-R的两个连接的碘化苯基的化合物,其中X表示任选取代的亚烷基,R 3表示氢原子或 酰基官能团,每个R表示进一步被亲水部分取代的三碘化苯基残基。 本发明还涉及这种诊断组合物作为造影剂在诊断成像中,特别是在X射线成像中的用途,以及含有这些化合物的造影剂。