公开(公告)号：US20110230812A1

公开(公告)日：2011-09-22

申请号：US13130116

申请日：2009-11-14

Applicant: Pascal Kopperschmidt ,  Gross Malte ,  Spickermann Reiner

Inventor： Pascal Kopperschmidt ,  Gross Malte ,  Spickermann Reiner

IPC: A61M37/00 ,  A61B5/02

CPC classification number: A61B5/02042 ,  A61M1/3639 ,  A61M1/3653 ,  A61M1/3656 ,  A61M1/3659 ,  A61M1/3661 ,  A61M2205/18 ,  A61M2205/3331

Abstract: A method and 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 is provided. A device for extra-corporeal blood treatment, particularly for hemodialysis, hemofiltration or hemodiafiltration, comprising a device for recognition of paravasal bleeding is also provided. The method and the device are based on the change of arterial pressure in the arterial branch or the venous pressure in the venous branch of the extra-corporeal circuit being registered during the extra-corporeal blood treatment. If paravasal bleeding occurs during the blood treatment, 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 and the device, 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.

Abstract translation: 一种方法和装置，用于在通过管线向血管通路供血时和/或通过管线从血管通路中取出血液，特别是在体外血液处理期间特别是paravasal出血，例如 用于血液透析，提供血液滤过或血液透析滤过。 还提供了一种用于体外血液处理的装置，特别是用于血液透析，血液滤过或血液透析滤过的装置，其包括用于识别旁路出血的装置。 该方法和装置基于在体外血液处理期间记录的动脉分支中的动脉压的变化或在体外循环的静脉分支中的静脉压。 如果在血液治疗期间发生paravasal渗血，则导致血管通路的线上的积极动态压力在体外血液处理期间在静脉插管上升，或者离开血管通路的线路上的吸入压力，例如动脉 套管在体外血液治疗中升高; 也就是说，吸入压力变得更负。 首先压力上升开始适度，然后变得越来越大。 因此，对于该方法和装置来说，与来自与参考值显示较大差异的压力水平的压力变化比从与参考值仅显示微小差异的压力水平的压力变化相比更强烈地考虑。