公开(公告)号：US20140114202A1

公开(公告)日：2014-04-24

申请号：US14123849

申请日：2012-05-25

申请人： Marc Hein ,  Greatex Nicholas ,  Roland Graefe ,  Ulrich Steinseifer

发明人： Marc Hein ,  Greatex Nicholas ,  Roland Graefe ,  Ulrich Steinseifer

IPC分类号： A61M1/10 ,  A61B5/00 ,  A61B5/027 ,  A61B5/02 ,  A61B5/0215 ,  A61B5/029

CPC分类号： A61B5/027 ,  A61B5/02028 ,  A61B5/0215 ,  A61B5/029 ,  A61B5/0538 ,  A61B5/4836 ,  A61B5/6848 ,  A61B5/6869 ,  A61B5/7235 ,  A61M1/1008 ,  A61M1/101 ,  A61M1/1086 ,  A61M1/12 ,  A61M1/122 ,  A61M2205/3334 ,  A61M2205/3344 ,  A61M2205/3379

摘要： The invention relates to a blood withdrawal cannula (4) for connecting a pump (2) assisting or replacing activity of the heart to the inner volume of a heart ventricle (1), in particular the left ventricle. At the end thereof that is located in the ventricle the cannula has a pressure sensor (7a, 7b) for measuring the ventricle pressure and/or ventricle pressure differences and at the same end of the cannula has a volume sensor (3a, 3b, 5, 6) for measuring the volume and/or volume changes of the ventricle (1) in at least a partial region of the ventricle. The invention further relates to a measuring device for monitoring the ventricle contractions and/or the function of a pump replacing or assisting activity of the heart. The measuring device can be/is connected to the pressure sensor (7a, 7b) and to the volume sensor of a blood withdrawal cannula according to any one of the preceding claims and is designed to detect pressure changes and volume changes of a ventricle (1) as the heart is beating.

摘要翻译： 本发明涉及一种用于将帮助或替代心脏活动的泵（2）连接到心室（1）的内部容积（尤其是左心室）的抽血套管（4）。 在其位于心室的末端，套管具有用于测量心室压力和/或心室压力差的压力传感器（7a，7b），并且在插管的同一端具有体积传感器（3a，3b，5） ，6），用于测量在心室的至少部分区域中心室（1）的体积和/或体积变化。 本发明还涉及一种用于监测心脏收缩和/或替换或辅助心脏活动的泵的功能的测量装置。 根据前述权利要求中任一项所述的测量装置可以连接到所述压力传感器（7a，7b）和所述血液取出插管的体积传感器，并被设计成检测心室（1）的压力变化和体积变化 ），因为心脏正在跳动。