公开(公告)号：US3970097A

公开(公告)日：1976-07-20

申请号：US611499

申请日：1975-09-08

申请人： Hans Rudolf Voellmy ,  Hermann Gahwiler

发明人： Hans Rudolf Voellmy ,  Hermann Gahwiler

IPC分类号： G01F1/708 ,  G01F1/704 ,  G01F3/00 ,  G01F11/00 ,  G01N33/48 ,  G01N35/08 ,  G01F1/00

CPC分类号： G01F1/704 ,  G01F11/00 ,  Y10T137/0318 ,  Y10T137/85994

摘要： A method of and apparatus for measuring or measuring-out a predetermined volume of a liquid flowing through a conduit or line, comprising a first conduit section containing a measurement path and at one end connected with the outlet conduit of a connection element which interconnects a first inlet conduit and a second inlet conduit. The first conduit section is operatively connected at its other end through the agency of a first valve with the low pressure side of a pump device. The first inlet conduit is continuously connected with a liquid container via a second conduit section which causes a dynamic pressure drop in the flowing liquid. Additionally, the second inlet conduit is continuously connected with a fluid container and the fluid container is connected via a second valve with a compartment, whereas the liquid container is continuously connected with the compartment and the high pressure side of the pump device opens into said compartment.

摘要翻译： 一种用于测量或测量流过管道或管线的液体的预定体积的方法和装置，包括：第一管道段，其包含测量路径，并且一端与连接元件的出口导管连接，所述连接元件将第一 入口管道和第二入口管道。 第一导管部分在其另一端通过具有泵装置的低压侧的第一阀的机构可操作地连接。 第一入口导管经由第二导管段与液体容器连续连接，第二导管段导致流动液体中的动态压降。 此外，第二入口管道与流体容器连续连接，并且流体容器经由第二阀与隔室连接，而液体容器与隔室连续连接，并且泵装置的高压侧通向所述隔室 。

公开(公告)号：US4465476A

公开(公告)日：1984-08-14

申请号：US448705

申请日：1982-12-10

申请人： Hermann Gahwiler

发明人： Hermann Gahwiler

IPC分类号： A61M5/178 ,  A61M5/28 ,  A61M1/00

CPC分类号： A61M5/284

摘要： The injection syringe for injecting two liquids has a cylinder within which there are displaceably arranged in a liquid-tight fashion a piston as well as a separator piston member. The separator piston member divides the internal space of the cylinder into a first front compartment and a second rear compartment and is provided with a spacer rod arranged to be displaced in a liquid-tight fashion within a bore of the piston. Retaining or holder means ensure that the separator piston member maintains a constant spacing from the piston while the first liquid in the first front compartment is being ejected, whereas the separator piston member and the piston are displaceable relative to each other during ejection of the second liquid. The dual-liquid injection syringe is particularly utilized in computerized tomography for injecting a contrast medium and a flushing medium.

摘要翻译： 用于注射两种液体的注射器具有一个气缸，在该气缸中液体密封地排列有活塞以及分离器活塞构件。 分离器活塞构件将气缸的内部空间分成第一前隔室和第二后隔室，并且设置有间隔杆，隔离杆被布置成以液密方式在活塞的孔内移位。 保持或保持装置确保分离器活塞构件在第一前隔室中的第一液体被排出时保持与活塞的恒定间隔，而分离器活塞构件和活塞在喷射第二液体期间可相对于彼此移位 。 双液注射器特别用于计算机断层摄影术中，用于注射造影剂和冲洗介质。

公开(公告)号：US4453934A

公开(公告)日：1984-06-12

申请号：US436307

申请日：1982-10-25

申请人： Hermann Gahwiler ,  Adrian Lorenz

发明人： Hermann Gahwiler ,  Adrian Lorenz

IPC分类号： A61M5/178 ,  A61B6/00 ,  A61M5/19 ,  A61M5/28 ,  A61M5/315 ,  A61M5/00

CPC分类号： A61M5/31596 ,  A61M5/19 ,  A61B6/481 ,  A61M2005/1787 ,  A61M5/286

摘要： An injection syringe is disclosed which comprises a cylinder equipped at one end with an attachment flange and at the other end, near to an outlet or discharge opening thereof, with a catheter connection. A piston member is insertable into the cylinder, and a container or receptacle is located between the piston member and the outlet or discharge opening. The container is provided with reference fracture locations and is freely displaceable within the cylinder in the lengthwise direction thereof. This container is filled with one of two liquids. After the ejection of the other liquid located within the cylinder externally of the container the container splits open and releases the injection the liquid contained therein. The injection syringe can be used, for instance, for the injection of a contrast agent followed by flushing with a physiological saline or salt solution, but also can be used in all other fields of application where it is desired to apply in timewise succession two liquids.

摘要翻译： 公开了一种注射器，其包括在一端装有附接凸缘并且在另一端靠近其出口或排出开口的气缸，其具有导管连接。 活塞构件可插入气缸中，容器或容器位于活塞构件和出口或排出口之间。 该容器具有参考断裂位置，并且可在气缸内沿其长度方向自由移动。 该容器充满两种液体之一。 在位于容器外部的气缸中的另一液体喷出之后，容器分开并释放其中容纳的液体的注入。 注射注射器可以用于例如注射造影剂，然后用生理盐水或盐溶液冲洗，但也可以用于所有其它应用领域，期望按时间顺序连续施用两种液体 。

公开(公告)号：US4004576A

公开(公告)日：1977-01-25

申请号：US571976

申请日：1975-04-28

申请人： Hermann Gahwiler ,  Hansjorg Schlaepfer

发明人： Hermann Gahwiler ,  Hansjorg Schlaepfer

IPC分类号： A61B5/02 ,  A61B5/028

CPC分类号： A61B5/029 ,  A61B5/028

摘要： A direct indicator device for determining the cardiac output according to the thermodilution method embodying two temperature sensors connected to the blood circulation for respectively determining the inlet- and dilution temperatures. A clock generator and a scaler connected at the output of the clock generator are provided, the scaler forming a control signal. A respective one of the sensors is connected in circuit with inputs of an associated temperature-pulse frequency converter, the outputs of which are connected with a respective input of a multiplexer. A control input of the multiplexer connected with the output of the scaler serves for the alternate switching-through of a signal from one input and from the other input of the multiplexer to the output thereof in time-dependent function of the control signal. A gate circuit has one input connected with the output of the multiplexer, another input connected with the output of the clock generator and a further input connected with the output of the scaler. The gate circuit has an output at which there appears the clock rate of the clock generator as a function of time on the one hand of the control signal and on the other hand of the signal at the output of the multiplexer, the output of the gate circuit being connected with the input of a counter. The output of the counter is connected with the input of an intermediate storage, and a control input of the counter and a control input of the intermediate storage are connected at the output of the scaler for the summation of the clock repetition rate delivered to the counter and for the storage thereof as a function of time of the control signal. A digital computer has connected therewith a digital indicator device, the computer having inputs connected respectively with the output of the intermediate storage, the output of the clock generator and the output of the scaler.

摘要翻译： 一种直接指示装置，用于根据体现连接到血液循环的两个温度传感器的热稀释方法来确定心输出量，以分别确定入口和稀释温度。 提供连接在时钟发生器的输出端的时钟发生器和定标器，缩放器形成控制信号。 相应的一个传感器与电路中的相关联的温度 - 脉冲频率转换器的输入相连，其输出端与多路复用器的相应输入端相连。 与定标器的输出连接的多路复用器的控制输入用于在控制信号的时间相关函数中将来自多路复用器的一个输入和另一个输入的信号的交替切换到其输出。 门电路具有与多路复用器的输出连接的一个输入端，与时钟发生器的输出端连接的另一个输入端以及与该定标器的输出端连接的另一输入端。 门电路具有一个输出，在该输出处，存在时钟发生器的时钟速率作为控制信号一方面的时间的函数，另一方面，在多路复用器的输出处出现信号的输出 电路与计数器的输入端连接。 计数器的输出与中间存储器的输入端连接，计数器的控制输入端和中间存储器的控制输入端连接在定标器的输出端，用于求和传递给计数器的时钟重复率 并且作为控制信号的时间的函数的存储。 数字计算机连接有数字指示器装置，该计算机具有分别与中间存储器的输出，时钟发生器的输出和定标器的输出相连接的输入。