公开(公告)号：US20080000478A1

公开(公告)日：2008-01-03

申请号：US11754541

申请日：2007-05-29

申请人： Hans Matthiessen ,  Dieter Weismann ,  Marcus Eger

发明人： Hans Matthiessen ,  Dieter Weismann ,  Marcus Eger

IPC分类号： A61M16/00

CPC分类号： A61M16/203 ,  A61B5/085 ,  A61B5/087 ,  A61M16/0069 ,  A61M16/026 ,  A61M16/06 ,  A61M2016/0027 ,  A61M2016/0033

摘要： A device for supplying a patient with breathing gas, in which an initially high initial pressure paw(t=0) applied from the outside is automatically lowered by means of a control circuit to a lower inspiratory pressure paw(t) as soon as a pulmonary internal pressure plung(t) threatens to exceed a predetermined pulmonary target pressure plung,soll. Overinflation of the lungs due to the respiration is thus ruled out according to the present invention. The device permits, moreover, rapid filling of the lungs with breathing gas and makes thus possible a comparatively long phase of expiration. A process is also provided for regulating a respirator and for respirating a patient.

摘要翻译： 用于向患者提供呼吸气体的装置，其中从外部施加的初始高初始压力p（aw = 0）通过控制电路自动降低到较低的吸气压力p 一旦肺内压肺（t）威胁超过预定的肺部目标压力肺，就可以使肺（t） 。 因此根据本发明排除了由呼吸引起的肺的过度充气。 此外，该装置还允许用呼吸气体快速填充肺，并且因此可能达到相对较长的呼气阶段。 还提供了一种用于调节呼吸器和呼吸患者的过程。

公开(公告)号：US07288943B2

公开(公告)日：2007-10-30

申请号：US11419318

申请日：2006-05-19

申请人： Hans Matthiessen ,  Dieter Weismann ,  Jianhua Li ,  Yvo Gärber

发明人： Hans Matthiessen ,  Dieter Weismann ,  Jianhua Li ,  Yvo Gärber

IPC分类号： G01R27/04 ,  G01R27/08 ,  A61B5/04 ,  A61B5/05

CPC分类号： A61B5/0536

摘要： An electroimpedance tomograph is provided with a plurality of electrodes (1), which can be placed on the body of a patient and are connected to a control and evaluating unit (20) via a selector switch (60). The control and evaluating unit (20) cooperates with the selector switch (60) such that two electrodes each are supplied with alternating current from an AC power source (22). The detected analog voltage signals of the other electrodes are sent into the control and evaluating unit (20) via a measuring amplifier (62) and AD converter (64) and are processed there in order to reconstruct the impedance distribution of the body in the plane of the electrodes therefrom. A symmetrical AC power source (22) is used to reduce common-mode signals. To make it possible to suppress errors due to common-mode signals, provisions are made for the control and evaluating unit (20) to be set up for making available an additional common-mode signal at an output during an adjusting mode of operation and to send it to the body via common-mode signal electrodes (4, 90) that can be placed on the body. The control and evaluating unit (20) is prepared, furthermore, to adjust the measuring amplifier (62) according to value and phase for each electrode pair connected by the selector switch (60) such that the common-mode signal at the output of the measuring amplifier (62) is minimized, and the adjusted parameters are stored for each electrode pair.

摘要翻译： 电阻断层摄影机设置有多个电极（1），其可以放置在患者的身体上，并且经由选择器开关（60）连接到控制和评估单元（20）。 控制和评估单元（20）与选择器开关（60）配合，使得两个电极各自由AC电源（22）提供交流电。 检测出的其他电极的模拟电压信号通过测量放大器（62）和AD转换器（64）发送到控制和评估单元（20），并在那里进行处理，以便重建在平面内的主体的阻抗分布 的电极。 使用对称的交流电源（22）来减少共模信号。 为了能够抑制由于共模信号引起的误差，为了使控制和评估单元（20）被设置成在调节操作模式期间在输出端提供额外的共模信号，并且 通过可以放置在身体上的共模信号电极（4,90）将其发送到身体。 此外，准备控制和评估单元（20）根据由选择器开关（60）连接的每个电极对的值和相位来调节测量放大器（62），使得在输出端的共模信号 测量放大器（62）被最小化，并且为每个电极对存储调整的参数。

公开(公告)号：US20070007973A1

公开(公告)日：2007-01-11

申请号：US11419318

申请日：2006-05-19

申请人： Hans MATTHIESSEN ,  Dieter WEISMANN ,  Jianhua LI ,  Yvo Garber

发明人： Hans MATTHIESSEN ,  Dieter WEISMANN ,  Jianhua LI ,  Yvo Garber

IPC分类号： G01R27/08

CPC分类号： A61B5/0536

摘要： An electroimpedance tomograph is provided with a plurality of electrodes (1), which can be placed on the body of a patient and are connected to a control and evaluating unit (20) via a selector switch (60). The control and evaluating unit (20) cooperates with the selector switch (60) such that two electrodes each are supplied with alternating current from an AC power source (22). The detected analog voltage signals of the other electrodes are sent into the control and evaluating unit (20) via a measuring amplifier (62) and AD converter (64) and are processed there in order to reconstruct the impedance distribution of the body in the plane of the electrodes therefrom. A symmetrical AC power source (22) is used to reduce common-mode signals. To make it possible to suppress errors due to common-mode signals, provisions are made for the control and evaluating unit (20) to be set up for making available an additional common-mode signal at an output during an adjusting mode of operation and to send it to the body via common-mode signal electrodes (4, 90) that can be placed on the body. The control and evaluating unit (20) is prepared, furthermore, to adjust the measuring amplifier (62) according to value and phase for each electrode pair connected by the selector switch (60) such that the common-mode signal at the output of the measuring amplifier (62) is minimized, and the adjusted parameters are stored for each electrode pair.

摘要翻译： 电阻断层摄影机设置有多个电极（1），其可以放置在患者的身体上，并且经由选择器开关（60）连接到控制和评估单元（20）。 控制和评估单元（20）与选择器开关（60）配合，使得两个电极各自由AC电源（22）提供交流电。 检测出的其他电极的模拟电压信号通过测量放大器（62）和AD转换器（64）发送到控制和评估单元（20），并在那里进行处理，以便重建在平面内的主体的阻抗分布 的电极。 使用对称的交流电源（22）来减少共模信号。 为了能够抑制由于共模信号引起的误差，为了使控制和评估单元（20）被设置成在调节操作模式期间在输出端提供额外的共模信号，并且 通过可以放置在身体上的共模信号电极（4,90）将其发送到身体。 此外，准备控制和评估单元（20）根据由选择器开关（60）连接的每个电极对的值和相位来调节测量放大器（62），使得在输出端的共模信号 测量放大器（62）被最小化，并且为每个电极对存储调整的参数。

公开(公告)号：US06544191B2

公开(公告)日：2003-04-08

申请号：US09902905

申请日：2001-07-11

申请人： Jochim Koch ,  Dieter Weismann ,  Georg Ankerhold ,  Horst-Dieter Hattendorff

发明人： Jochim Koch ,  Dieter Weismann ,  Georg Ankerhold ,  Horst-Dieter Hattendorff

IPC分类号： A61B508

CPC分类号： A61M16/12 ,  A61B5/0813 ,  A61B5/091 ,  A61K49/0004 ,  A61M2016/0042 ,  A61M2016/102 ,  A61M2230/43

摘要： A process is provided for determining the functional residual capacity (FRC) of the lungs during respiration. An environmentally friendly trace gas is used in a process and system for determining the FRC by using fluoropropanes as a trace gas. Values for the FRC can thus be calculated, resolved for individual breaths, from the expiratory trace gas concentration and the expired breathing gas volume and they can be used for determining the FRC depending on their convergence behavior.

公开(公告)号：US5876352A

公开(公告)日：1999-03-02

申请号：US975334

申请日：1997-11-20

申请人： Dieter Weismann

发明人： Dieter Weismann

IPC分类号： A61B5/085 ,  A61M16/00 ,  A61N5/00

CPC分类号： A61M16/0051 ,  A61B5/085 ,  A61M2016/0021 ,  A61M2016/0027 ,  A61M2016/0036 ,  A61M2230/46

摘要： A process and device for determining mechanical properties of a respiratory system of a patient connected to a respirator, wherein a short-term occlusion of the patient's airways is performed during an inspiration phase and/or an expiration phase. Initiating of the occlusion is at different points in time within the breathing cycle and during a plurality of breaths. The respiratory flow and the inhaled or exhaled volume of the patient is determined at the beginning of this occlusion. The airway pressure is also measured during this occlusion. The change occurring over time in the airway pressure during a measurement time falling within the occlusion time is determined. Also determined is the course over time of the change occurring over time of the muscle pressure of the patient from the measured values. The course over time of the muscle pressure is calculated by integrating this course over time.

摘要翻译： 用于确定连接到呼吸器的患者的呼吸系统的机械特性的方法和装置，其中在吸气阶段和/或呼出阶段期间执行患者气道的短期闭塞。 闭塞的开始是在呼吸周期内和多次呼吸期间的不同时间点。 在该闭塞开始时确定患者的呼吸流量和吸入或呼出体积。 在闭塞期间也测量气道压力。 测定在滞留时间内的测定时间内气道压力随时间发生的变化。 随着时间的变化，患者的肌肉压力随着测量值的变化而发生变化。 通过随时间整合本课程计算肌肉压力的时间过程。

公开(公告)号：US5848591A

公开(公告)日：1998-12-15

申请号：US867608

申请日：1997-06-02

申请人： Dieter Weismann

发明人： Dieter Weismann

IPC分类号： A61M16/00 ,  A61M16/01 ,  A61M16/12 ,  A61M16/18 ,  A61M16/22

CPC分类号： A61M16/12 ,  A61M16/0066 ,  A61M16/18 ,  A61M16/22

摘要： A respirator with a delivery device, which draws in ambient air via an inlet line and pumps it into an outlet line, with a discharge opening, which branches off from the outlet line and via which a partial flow of the gas being delivered, which can be set with a discharge valve, escapes. Oxygen is added with the smallest possible loss of gas and with good constancy of the concentration by: providing the inlet line with a buffer volume, via which the ambient air drawn in can flow; providing a return line which introduces the partial flow into the buffer volume is present between the discharge opening and the buffer volume; and providing the oxygen source connected to the inlet line and/or to the buffer volume.

摘要翻译： 具有输送装置的呼吸器，其通过入口管线吸入环境空气并将其泵送到出口管线中，其具有从出口管线分出的排出开口，并且通过该排放口部分输送的气体的部分流动，其可以 设有排放阀，逃逸。 添加氧气的可能性最小，并且具有良好的浓度恒定性：为入口管线提供缓冲体积，吸入的环境空气可以流过; 提供将排出口和缓冲体积之间的部分流引入缓冲体积的返回线; 并且提供连接到入口管线和/或缓冲体积的氧源。