公开(公告)号：US5540233A

公开(公告)日：1996-07-30

申请号：US327990

申请日：1994-10-24

申请人： Anders Larsson ,  Rolf Castor ,  Stefan Brauer ,  Sven G. Olsson

发明人： Anders Larsson ,  Rolf Castor ,  Stefan Brauer ,  Sven G. Olsson

IPC分类号： A61M16/00 ,  A61B5/08 ,  A61B5/091

CPC分类号： A61B5/091 ,  A61B5/0813

摘要： In a method and a ventilator device for measuring the functional residual capacity, FRC, of lungs, a trace gas is mixed with a breathing gas in a gas mixer and the mixture os fed into the lungs via an inspiratory tube. When a predetermined concentration of trace gas is achieved in the lungs, the supply of trace gas is stopped, and a washout phase starts. During the washout phase, the concentration of trace gas in expired gas and the flow of expired gas are measured. The measurement values are sent to an analyzer which calculates the volume of trace gas in the lungs. Functional residual capacity can then be determined from the calculated volume of trace gas. The trace gas is preferably SF.sub.6.

摘要翻译： 在用于测量肺的功能残留容量（FRC）的方法和呼吸机装置中，将痕量气体与气体混合器中的呼吸气体混合，并且混合物通过吸气管进入肺部。 当在肺中达到预定浓度的痕量气体时，停止供给痕量气体，并且开始冲洗阶段。 在冲洗阶段，测量过期气体中痕量气体的浓度和呼出气体的流量。 测量值被发送到计算肺中痕量气体的分析仪。 然后可以从计算的痕量气体量确定功能剩余容量。 痕量气体优选为SF 6。

公开(公告)号：US5387979A

公开(公告)日：1995-02-07

申请号：US108799

申请日：1993-08-19

申请人： Stefan Brauer ,  Rolf Castor ,  Anders Linge ,  Sven-Gunnar Olson

发明人： Stefan Brauer ,  Rolf Castor ,  Anders Linge ,  Sven-Gunnar Olson

IPC分类号： G01J3/42 ,  G01N21/27 ,  G01N21/31 ,  G01N21/59 ,  G01J3/427 ,  G01N21/35

CPC分类号： G01N21/314

摘要： In a spectrophotometer for measuring the concentration of a specific substance, a pulsating (modulated) source of radiation gives rise to an alternating current component, a direct current component and a dark signal component in a measurement signal. The response time for changes in the concentration of the specific substance is reduced while the measurement signal's signal-to-noise ratio is simultaneously improved when the pulsation frequency is from 50 to 1000 Hz, and the direct current component in the measurement signal is filtered out for normalization by a reference signal in a signal analyzer so the concentration of the specific substance can be calculated.

摘要翻译： 在用于测量特定物质的浓度的分光光度计中，脉动（调制）辐射源在测量信号中产生交流分量，直流分量和暗信号分量。 当脉动频率为50至1000Hz时，同时改善测量信号的信噪比，测量信号中的直流分量被滤除，特定物质浓度变化的响应时间减少，同时改善测量信号的信噪比 用于通过信号分析仪中的参考信号进行归一化，因此可以计算特定物质的浓度。

公开(公告)号：US06450968B1

公开(公告)日：2002-09-17

申请号：US09654480

申请日：2000-09-01

申请人： Lars Wallen ,  Rolf Castor

发明人： Lars Wallen ,  Rolf Castor

IPC分类号： A61B500

CPC分类号： A61B5/087 ,  G01N29/024 ,  G01N29/38 ,  G01N2291/0215 ,  G01N2291/02466 ,  G01N2291/02809 ,  G01N2291/02881

摘要： In a method for determining the gas content, e.g. of oxygen in breathing gas in a breathing apparatus, and a breathing apparatus operating according to the method, the gas content is determined from the speed of sound in the breathing gas. In order to resolve the problems caused by temperature variations in gas samples, determination of the speed of sound is synchronized with one or more specific times in a respiratory cycle. Determination can then be made when conditions are most stable.

摘要翻译： 在用于确定气体含量的方法中，例如， 在呼吸器中呼吸气体中的氧气和根据该方法操作的呼吸器，气体含量由呼吸气体中的声速确定。 为了解决气体样品温度变化引起的问题，声音速度的确定与呼吸周期中的一个或多个特定时间同步。 然后可以在条件最稳定时进行测定。

公开(公告)号：US06745771B2

公开(公告)日：2004-06-08

申请号：US10013246

申请日：2001-12-10

申请人： Rolf Castor ,  Petter Videbrink

发明人： Rolf Castor ,  Petter Videbrink

IPC分类号： A62B2302

CPC分类号： A61M16/104 ,  A61M16/009 ,  A61M16/0093 ,  A61M16/1065 ,  A61M16/107 ,  A61M16/109 ,  A61M16/18 ,  A61M2016/0036 ,  A61M2016/1035

摘要： An anesthetic filter arrangement has a filter housing with openings disposed to delimit a gas flow path inside the housing for gas passing to and from a patient, and having disposed within the gas flow path a filter element formed of an adsorption material for the alternate adsorption and desorption of gaseous anesthetic from and into gas passing along the gas flow path respectively from and to the patient. An energy source is provided to supply thermal and/or vibrational energy at the filter element to vary retention of the gaseous anesthetic by the filter element.

摘要翻译： 麻醉过滤器装置具有过滤器壳体，其具有开口，其设置成限定壳体内的气体流动路径，用于通过和流出患者的气体，并且在气体流动路径内设置由用于替代吸附的吸附材料形成的过滤元件， 气体麻醉剂从气体流路和气体通路分别从患者和患者解吸到气体中。 提供能量源以在过滤器元件处提供热和/或振动能量以改变气体麻醉剂由过滤元件的保留。

公开(公告)号：US5743253A

公开(公告)日：1998-04-28

申请号：US588684

申请日：1996-01-19

申请人： Rolf Castor ,  Goran Cewers ,  Rolf Wernbro ,  Magnus Nord

发明人： Rolf Castor ,  Goran Cewers ,  Rolf Wernbro ,  Magnus Nord

IPC分类号： A61M16/00 ,  G05B23/02 ,  A61M15/00

CPC分类号： A61M16/00 ,  G05B17/02 ,  A61M2016/0039 ,  A61M2016/0042 ,  A61M2205/70 ,  A61M2230/46

摘要： A ventilator system has different sub-systems, such as a connection system, which influence the flow of breathing gas supplied to a patient's respiratory system. The flow pattern of the breathing gas is particularly influenced by the connection system. In order to compensate for this influence to the greatest possible extent in the generation of breathing gas, the connection system's transfer function is determined before the system is connected to the respiratory system. A gas flow with a specific gas flow pattern is generated with high accuracy in a ventilator unit. An ensuing gas flow pattern, only influenced by the connection system, is measured with high accuracy in a measurement unit in the ventilator unit. The transfer function for the connection system can be determined in a control unit from the known, generated gas flow pattern and the measured, ensuing gas flow pattern. The corresponding determination can be made for the respiratory system after a patient has been connected.

摘要翻译： 呼吸机系统具有不同的子系统，例如连接系统，其影响供应给患者呼吸系统的呼吸气体的流动。 呼吸气体的流动模式特别受连接系统的影响。 为了在产生呼吸气体中尽可能地补偿这种影响，在系统连接到呼吸系统之前确定连接系统的传递功能。 在呼吸机单元中以高精度产生具有特定气流模式的气流。 在呼吸机单元中的测量单元中，高精度地测量仅受连接系统影响的气流模式。 连接系统的传递函数可以在控制单元中根据已知的产生的气流模式和所测量的随之而来的气流模式来确定。 患者连接后可以对呼吸系统进行相应的确定。

公开(公告)号：US06955790B2

公开(公告)日：2005-10-18

申请号：US09853470

申请日：2001-05-11

申请人： Rolf Castor ,  Thomas Hammer

发明人： Rolf Castor ,  Thomas Hammer

IPC分类号： B01J8/02 ,  B01J12/00 ,  B01J19/08 ,  C01B21/30 ,  C01B21/32

CPC分类号： C01B21/32 ,  A61M2202/0275 ,  B01J8/02 ,  B01J12/002 ,  B01J19/088 ,  B01J2219/0809 ,  B01J2219/0826 ,  B01J2219/083 ,  B01J2219/0845 ,  B01J2219/0883 ,  C01B21/30

摘要： A method and an apparatus for plasma-chemical production of nitrogen monoxide is used to produce inhalation gas enriched with nitrogen monoxide for medical purposes. The nitrogen-monoxide production is achieved through the use of a dielectric barrier discharge created in a process gas containing nitrogen and oxygen.

摘要翻译： 用于等离子体化学生产一氧化氮的方法和装置用于产生用于医疗目的富含一氧化氮的吸入气体。 通过使用在含有氮和氧的工艺气体中产生的介电阻挡放电来实现一氧化二氮的产生。

公开(公告)号：US6014889A

公开(公告)日：2000-01-18

申请号：US184060

申请日：1998-11-02

申请人： Rolf Castor

发明人： Rolf Castor

IPC分类号： G01N1/00 ,  A61M16/00 ,  G01N27/74 ,  G01N33/00 ,  G01N29/02 ,  G01J1/42

CPC分类号： G01N33/0011 ,  Y10T436/207497

摘要： A gas analyzer has a test chamber for a gas sample, an inlet for the gas sample and a gas sensor sensitive to gas movement, for determining the concentration of a constituent gas in the gas sample. The inlet is adapted to be connected to an inspiration line of a respirator. A shield is arranged so it covers the inlet of the test chamber, causing the gas sample to remain relatively still inside the test chamber during the analysis, regardless of the main flow of the gas to be analyzed. The gas analyzer can accordingly be devised for direct connection to the gas to be analyzed.

摘要翻译： 气体分析仪具有用于气体样品的测试室，用于气体样品的入口和对气体运动敏感的气体传感器，用于确定气体样品中构成气体的浓度。 入口适于连接到呼吸器的吸气管线。 屏蔽被布置成覆盖测试室的入口，使得气体样品在分析过程中保持相对静止在测试室内，而不管待分析的气体的主流。 因此，可以设计气体分析器以直接连接到待分析的气体。

公开(公告)号：US07040183B2

公开(公告)日：2006-05-09

申请号：US10686983

申请日：2003-10-16

申请人： Rolf Castor ,  Magnus Hallbäck

发明人： Rolf Castor ,  Magnus Hallbäck

IPC分类号： G01N1/22 ,  G01N33/497 ,  A61B5/097

CPC分类号： A61B5/097 ,  G01N1/22 ,  G01N2001/2244

摘要： An arrangement for passive gas sampling of a breathing gas in a breathing system allows sampling during both inspiration and expiration. The arrangement has a tube-piece having a first connector for receiving an inspiratory gas flow, a second connector for delivering an expiratory gas flow and a third connector for delivering the inspiratory gas flow and receiving the expiratory gas flow, a first port arranged between the second connector and the third connector and connected to a measurement chamber, a second port arranged between the first connector and the third connector and connected to the measurement chamber and a third port arranged between the first connector and the second connector and connected to the measurement chamber. The tube-piece is formed such that when an inspiratory flow passes through the tube-piece, a flow is established principally between the first port, the measurement chamber and the second port, and that when an expiratory flow passes through the tube-piece a flow is established principally between the third port, the measurement chamber and the first port.

摘要翻译： 在呼吸系统中呼吸气体的被动气体取样的布置允许在吸气和呼气期间进行取样。 该装置具有管件，其具有用于接收吸气气流的第一连接器，用于输送呼气气流的第二连接器和用于输送吸气气流并接收呼气气流的第三连接器，布置在吸入气流之间的第一端口 第二连接器和第三连接器并连接到测量室，第二端口，布置在第一连接器和第三连接器之间并连接到测量室，第三端口布置在第一连接器和第二连接器之间并连接到测量室 。 管件形成为使得当吸气流通过管件时，主要在第一端口，测量室和第二端口之间建立流动，并且当呼气流通过管件a时 流动主要在第三端口，测量室和第一端口之间建立。

公开(公告)号：US5531096A

公开(公告)日：1996-07-02

申请号：US342058

申请日：1994-11-17

申请人： Rolf Castor

发明人： Rolf Castor

IPC分类号： A61M16/00 ,  G01N1/00 ,  G01N1/02 ,  G01N33/00 ,  G01N33/497 ,  G01N30/00 ,  A61B5/08 ,  G01N31/00

CPC分类号： A61M16/00 ,  A61M16/085 ,  G01N33/0011 ,  G01N33/497 ,  A61M2016/102

摘要： A method for gas analysis includes the steps of extracting a gas sample from a gas to be analyzed with respect to one or more of its gas components, measuring the flow of the extracted gas sample, and adding a replacement gas to the gas in the same amount as the extracted sample in order to minimize the impact on the main gas flow of the extraction of the gas sample. The replacement gas can consist of the same gas components constituting the gas sample. A gas analyzer for performing the method is also disclosed.

摘要翻译： 一种气体分析方法包括以下步骤：相对于其一种或多种气体成分从待分析的气体中提取气体样品，测量提取的气体样品的流量，并向其中的气体添加替换气体 作为提取的样品的量，以便最小化对气体样品的提取的主气流的影响。 替代气体可以由构成气体样品的相同气体组分组成。 还公开了用于执行该方法的气体分析器。

公开(公告)号：US4067320A

公开(公告)日：1978-01-10

申请号：US682167

申请日：1976-04-30

申请人： Sven-Gunnar Olsson ,  Rolf Castor ,  Gabriel Tchang

发明人： Sven-Gunnar Olsson ,  Rolf Castor ,  Gabriel Tchang

IPC分类号： A61B5/083 ,  G01N21/27 ,  G01N21/35 ,  G01N21/59 ,  G01N33/497 ,  A61B5/00 ,  G01N31/00

CPC分类号： G01N33/4972 ,  A61B5/0836 ,  G01N21/274

摘要： An arrangement for automatic drift compensation in a gas analyzer in which a source of radiation radiates through the gas to be analyzed, and directs the radiation onto a detector. The latter forms an amplified output signal corresponding to the detector output and corresponding to the gas concentration. A signal storage stores the signal corresponding to the output signal of the detector when the gas to be analyzed has a predetermined concentration. A comparator compares the output signal from the detector with the stored signal. The gas analyzer is used for determining the content of a predetermined gas in a mixture of gases exhaled by a patient. A circuit connected between the detector output and the comparator input delivers to the storage a signal during the inspiration phase of the patient.

摘要翻译： 一种用于气体分析器中的自动漂移补偿的装置，其中辐射源辐射通过待分析的气体，并将辐射引导到检测器上。 后者形成对应于检测器输出并对应于气体浓度的放大输出信号。 当待分析的气体具有预定浓度时，信号存储器存储与检测器的输出信号对应的信号。 比较器将来自检测器的输出信号与存储的信号进行比较。 气体分析仪用于确定由患者呼出的气体混合物中的预定气体的含量。 连接在检测器输出和比较器输入端之间的电路在患者的吸气阶段向存储器传送信号。