公开(公告)号：US20050019167A1

公开(公告)日：2005-01-27

申请号：US10344384

申请日：2002-04-26

申请人： Peter Nusser ,  Johannes Muller ,  Frank Deus ,  Peter Gottel ,  Jan Hoffmann ,  Kurt Graichen ,  Andreas Arndt ,  Tobias Merkel

发明人： Peter Nusser ,  Johannes Muller ,  Frank Deus ,  Peter Gottel ,  Jan Hoffmann ,  Kurt Graichen ,  Andreas Arndt ,  Tobias Merkel

IPC分类号： A61M1/10 ,  F04D3/00 ,  F04D13/06 ,  F04D15/00 ,  F04B49/00 ,  F04B1/00

CPC分类号： F04D13/0606 ,  A61M1/1005 ,  A61M1/1086 ,  A61M1/122 ,  F04D3/00 ,  F04D15/0066

摘要： Method for controlling an assist pump for fluid delivery systems with pulsatile pressure. If for example a heart assist pump is driven with a constant number of revolutions, it is achieved, that the blood is also delivered through the assist pump, even when the heart chamber is in the decontraction phase. With the present method it is achieved, that an assist pump only acts supportingly in the pressure phase of the main pump, in such a way, that the pressure difference between the input side and the output side of the assist pump is continuously determined and the number of revolutions of the assist pump is controlled in such a way, that the determined pressure difference does not fall below a predetermined value and the rate of flow does not sink below zero.

摘要翻译： 用于控制具有脉动压力的流体输送系统的辅助泵的方法。 例如，如果以恒定的转数来驱动心脏辅助泵，则即使当心室处于去吸收阶段时，也可以通过辅助泵输送血液。 利用本方法，可以实现辅助泵仅在主泵的压力相位中支撑地作用，从而连续地确定辅助泵的输入侧和输出侧之间的压力差，并且 以这样的方式控制辅助泵的转数，使得所确定的压力差不低于预定值，并且流量不下降到零以下。

公开(公告)号：US07150711B2

公开(公告)日：2006-12-19

申请号：US10344384

申请日：2002-04-26

申请人： Peter Nüsser ,  Johannes Müller ,  Frank Deus ,  Peter Göttel ,  Jan Hoffmann ,  Kurt Graichen ,  Andreas Arndt ,  Tobias Merkel

发明人： Peter Nüsser ,  Johannes Müller ,  Frank Deus ,  Peter Göttel ,  Jan Hoffmann ,  Kurt Graichen ,  Andreas Arndt ,  Tobias Merkel

IPC分类号： A61M1/12 ,  F04B17/03 ,  F04B49/08

CPC分类号： F04D13/0606 ,  A61M1/1005 ,  A61M1/1086 ,  A61M1/122 ,  F04D3/00 ,  F04D15/0066

摘要： Method for controlling an assist pump for fluid delivery systems with pulsatile pressure. If for example a heart assist pump is driven with a constant number of revolutions, it is achieved, that the blood is also delivered through the assist pump, even when the heart chamber is in the decontraction phase. With the present method it is achieved, that an assist pump only acts supportingly in the pressure phase of the main pump, in such a way, that the pressure difference between the input side and the output side of the assist pump is continuously determined and the number of revolutions of the assist pump is controlled in such a way, that the determined pressure difference does not fall below a predetermined value and the rate of flow does not sink below zero.

摘要翻译： 用于控制具有脉动压力的流体输送系统的辅助泵的方法。 例如，如果以恒定的转数来驱动心脏辅助泵，则即使当心室处于去吸收阶段时，也可以通过辅助泵输送血液。 利用本方法，可以实现辅助泵仅在主泵的压力相位中支撑地作用，从而连续地确定辅助泵的输入侧和输出侧之间的压力差，并且 以这样的方式控制辅助泵的转数，使得所确定的压力差不低于预定值，并且流量不下降到零以下。

公开(公告)号：US07229474B2

公开(公告)日：2007-06-12

申请号：US10297143

申请日：2002-04-29

申请人： Jan Hoffmann ,  Andreas Arndt ,  Tobias Merkel

发明人： Jan Hoffmann ,  Andreas Arndt ,  Tobias Merkel

IPC分类号： A61M1/12

CPC分类号： F04D29/041 ,  F04D3/00 ,  F04D13/0606 ,  F04D29/048 ,  F16C32/0457 ,  F16C32/047 ,  F16C32/0478 ,  F16C2316/18 ,  F16C2360/44 ,  H02K5/128 ,  H02K7/09 ,  H02K7/14

摘要： Since disruptive forces can be continuously exerted upon a rotor during a pulsatile flow through a pump with a magnetically mounted rotor (permanent magnets and addition control current coils), it is necessary to adjust position i.e. modify axial rotor position very quickly. The control current should only result in small amounts of losses. According to the invention, the current is pulse-width modulated by the control current coils by means of a set value predetermined by a controller which is arranged downstream from a position sensing system. If the set value is high, it is switched to a higher voltage level and the real value of the position sensing system is stored for a defined period of time, respectively beginning with the switching flank of the control current, and the position sensing system is disconnected during said period of time.

摘要翻译： 由于在通过具有磁性安装的转子（永磁体和附加控制电流线圈）的泵的脉动流动期间，破坏力可以连续施加在转子上，因此需要非常快速地调节位置，即修改轴向转子位置。 控制电流只能造成少量损失。 根据本发明，电流由控制电流线圈通过由位于位置感测系统的下游的控制器预定的设定值进行脉冲宽度调制。 如果设定值为高电平，则切换到较高的电压电平，位置检测系统的实际值分别以控制电流的切换侧面开始存储一段规定的时间段，位置检测系统为 在这段时间内断电。