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    VERFAHREN UND VORRICHTUNG ZUR ERKENNUNG EINER PARAVASALEN BLUTUNG
    8.
    发明公开
    VERFAHREN UND VORRICHTUNG ZUR ERKENNUNG EINER PARAVASALEN BLUTUNG 有权
    方法和设备检测循环血管周围

    公开(公告)号：EP2349394A1

    公开(公告)日：2011-08-03

    申请号：EP09765018.8

    申请日：2009-11-14

    申请人： Fresenius Medical Care Deutschland GmbH

    发明人： KOPPERSCHMIDT, Pascal ,  GROSS, Malte ,  SPICKERMANN, Reiner

    IPC分类号： A61M1/36

    CPC分类号： A61B5/02042 ,  A61M1/3639 ,  A61M1/3653 ,  A61M1/3656 ,  A61M1/3659 ,  A61M1/3661 ,  A61M2205/18 ,  A61M2205/3331

    摘要： The invention relates to a method and to a device for recognition of paravasal bleeding upon a supplying of blood to a vascular access via a line and/or upon the removal of blood from a vascular access via a line, particularly paravasal bleeding during extra-corporeal blood treatment, such as for hemodialysis, hemofiltration or hemodiafiltration. The invention furthermore relates to a device for extra-corporeal blood treatment, particularly for hemodialysis, hemofiltration or hemodiafiltration, comprising a device for recognition of paravasal bleeding. The method according to the invention and the device according to the invention are based on the change of arterial pressure in the arterial branch (5) or the venous pressure in the venous branch (7) of the extra-corporeal circuit (I) being registered during the extra-corporeal blood treatment. If paravasal bleeding occurs during the blood treatment, it is shown that the positive dynamic pressure on the line leading to the vascular access rises on the venous cannula during the extra-corporeal blood treatment, or the suction pressure on the line leaving the vascular access, such as the arterial cannula during extra-corporeal blood treatment, rises; that is, the suction pressure becomes more negative. The pressure rise begins moderately at first and then becomes increasingly greater. Decisive for the method according to the invention and the device according to the invention, therefore, is that pressure changes that come from a pressure level exhibiting a large difference from the reference value find stronger consideration than those that come from a pressure level that exhibits only a minor difference from the reference value.