公开(公告)号：US6147351A

公开(公告)日：2000-11-14

申请号：US999123

申请日：1997-12-29

Applicant: Matti Huiku

Inventor： Matti Huiku

IPC: G01N21/03 ,  G01N21/35 ,  G01N21/61

CPC classification number: G01N21/0303 ,  G01N21/3518 ,  G01N21/61

Abstract: A sensor device and a method for non-dispersive analysis of gas mixtures for determining the concentration of one gas component contained therein, whose absorbency may be influenced as a result of collision broadening by other components contained in a gas mixture (GC). The device includes: a measuring chamber (5), containing the gas mixture; a radiation source (4), emitting radiation (15) through the chamber; detector (10, 14, 16) for receiving radiation passed through the chamber; optical bandpass filters (9a-c) positioned between the detectors and the radiation source, the detectors being coupled with measuring ducts (1-3) or measuring cycles. An optical gas filter (11), contains said gas component or a mixture thereof and is located between the detector and the radiation source. From the first measuring duct is obtained a first signal (S1) and from the second measuring duct is obtained a second signal (S2) relating to radiation also passed through the optical gas filter. Prior to analyses, the amount of a gas component in the gas filter is set at its pressure and/or absorption length or alternatively the effective amount of gas component in its gas mixture either at its fixed concentration and/or at the pressure and/or absorption length (L2) of the mixture to have such a value that: the second signal (S2) and the first signal (S1) are linearly independent of each other and that the second signal and the first signal have a mutual relationship, wherein the variable quantities include at least a collision broadening and a gas component concentration and wherein the coefficients are experimentally determined prior to analyses for accurately determining the effect of a collision broadening.

Abstract translation: 用于确定其中所含的一种气体组分的浓度的气体混合物的传感器装置和方法，其吸收性可能受到气体混合物（GC）中包含的其它组分的碰撞加宽的影响而受到影响。 该装置包括：容纳气体混合物的测量室（5）; 辐射源（4），通过所述腔室发射辐射（15）; 检测器（10,14,16），用于接收通过所述腔室的辐射; 位于检测器和辐射源之间的光学带通滤波器（9a-c），检测器与测量导管（1-3）或测量周期耦合。 光学气体过滤器（11）包含所述气体成分或其混合物，并位于检测器和辐射源之间。 从第一测量管道获得第一信号（S1），并且从第二测量管道获得与通过光学气体过滤器的辐射有关的第二信号（S2）。 在分析之前，将气体过滤器中的气体组分的量设定在其压力和/或吸收长度，或者以其固定浓度和/或在压力下设置在其气体混合物中的气体组分的有效量和/或 所述混合物的吸收长度（L2）具有这样的值：所述第二信号（S2）和所述第一信号（S1）彼此线性相关，并且所述第二信号和所述第一信号具有相互关系，其中， 可变量包括至少碰撞增宽和气体组分浓度，并且其中系数在分析之前被实验确定以准确地确定碰撞扩大的影响。

公开(公告)号：US6142148A

公开(公告)日：2000-11-07

申请号：US180834

申请日：1998-11-16

Applicant: Kurt Weckstrom ,  Antti Kleemola

Inventor： Kurt Weckstrom ,  Antti Kleemola

IPC: A61B5/08 ,  A61B5/087 ,  G01F1/34 ,  G01F1/40 ,  A61M16/00

CPC classification number: G01F1/40 ,  A61B5/087

Abstract: Measuring transducer and system for the measurement of gas flow, especially for the measurement of the pressure and/or flow of a patient's respiratory gas. The surface of the flow channel (1) wall (2) and/or a restricting element (3) in the flow channel which is directly exposed to the gas flow to be measured is provided with a material retaining water inside it.

Abstract translation: PCT No.PCT / FI98 / 00230 Sec。 371日期：1998年11月16日 102（e）1998年11月16日PCT PCT 1998年3月13日PCT公布。 公开号WO98 / 41148 PCT 日期1998年9月24日测量用于测量气体流量的换能器和系统，特别是用于测量患者呼吸气体的压力和/或流量。 直接暴露于待测气流的流路中的流路（1）壁（2）和/或限流元件（3）的表面设有保持水内的材料。

公开(公告)号：US6138672A

公开(公告)日：2000-10-31

申请号：US63598

申请日：1998-04-21

Applicant: Jukka Kankkunen

Inventor： Jukka Kankkunen

IPC: A61M16/14 ,  A61M16/18 ,  A61M15/00

CPC classification number: A61M16/183

Abstract: An arrangement in an anesthesia vaporizer comprising a liquid container including a vapor generator; a filling device; and conduits for supplying anesthetic from a transport and storage container to the liquid container and/or for removing anesthetic from the liquid container, and for conveying an amount of replenishment gas corresponding to the amount of anesthetic liquid from the liquid container to the transport and storage container upon filling the container and/or inversely upon emptying. For improved operating safety, the filling device is provided with a closing means, adapted to close a filling conduit which opens to the inside of the liquid container and a replenishment gas conduit between the liquid container and the transport and storage container through an overpressure generated in the transport and storage container, and thus prevent anesthetic liquid from flowing to the liquid container.

Abstract translation: 一种麻醉蒸发器中的布置，包括：包括蒸汽发生器的液体容器; 灌装装置; 以及用于从运输和储存容器向液体容器供应麻醉剂和/或从液体容器中除去麻醉剂的管道，以及将与液体容器中的麻醉液量相对应的补充气体的量输送到运输和储存 容器在填充容器和/或倒空时相反。 为了提高操作安全性，填充装置设置有关闭装置，其适于封闭通向液体容器内部的填充导管，以及在液体容器和运输和储存容器之间的补充气体导管，其中产生的过压 运输和储存容器，从而防止麻醉液体流入液体容器。

公开(公告)号：US6128963A

公开(公告)日：2000-10-10

申请号：US85822

申请日：1998-05-28

Applicant: Leif Bromster

Inventor： Leif Bromster

IPC: G01F1/36 ,  G01F1/37

CPC classification number: G01F1/36

Abstract: A flow sensing device for measuring the rate of a gas flow. The flow sensing device includes a flow restrictor having at least one air flow annulus extending between the first and second end of the flow restrictor. Gas entering the flow sensing device at the inlet passes through the airflow annulus and exits the flow sensing device at the outlet. The flow restrictor causes a pressure drop between the inlet and outlet while promoting laminar flow therethrough. By measuring the pressure difference between the inlet and the outlet, the flow rate of the gas can be determined.

Abstract translation: 一种用于测量气流速率的流量检测装置。 流量检测装置包括限流器，其具有在限流器的第一和第二端之间延伸的至少一个空气流环。 在入口处进入流量检测装置的气体通过气流环，并在出口处离开流量检测装置。 限流器引起入口和出口之间的压降，同时促进层流。 通过测量入口和出口之间的压力差，可以确定气体的流量。

公开(公告)号：US06041247A

公开(公告)日：2000-03-21

申请号：US208171

申请日：1998-12-09

Applicant: Kurt P. Weckstrom ,  Kimmo J. Ristolainen

Inventor： Kurt P. Weckstrom ,  Kimmo J. Ristolainen

IPC: A61B5/00

CPC classification number: A61B5/6826 ,  A61B5/6838

Abstract: An optical sensor for non-invasively measuring the content or composition of one or more chemical components within especially a living tissue of a body portion. Radiation sources (38), emit measuring radiation with at least two wavelengths to a portion (6) of the body of a patient. A detector (37) receives the measuring radiation having passed through said body portion of a patient and converts same to electric form. At least one radiation transfer section is located between either the radiation sources or respectively the detectors and the external surface (50) of the body portion of a patient. The radiation transfer section includes measuring-radiation transmitting ends. An outer end (16, 26) facing the external body surface (50) has a surface area which is generally larger than the surface area of an inner end (13a; 19a) facing any given radiation sources or respectively detectors. A measuring-radiation diffusely reflecting surface (14, 17) is positioned between the ends. The sensor may comprise a pulse oximeter sensor.

Abstract translation: 一种用于非侵入性地测量身体部分的特别是生物体组织内的一种或多种化学成分的含量或组成的光学传感器。 辐射源（38）将具有至少两个波长的测量辐射发射到患者身体的部分（6）。 检测器（37）接收通过患者身体部分的测量辐射并将其转换成电形式。 至少一个辐射传递部分位于辐射源或者分别是检测器和患者身体部分的外表面（50）之间。 辐射传递部分包括测量辐射发射端。 面向外体表面（50）的外端（16,26）具有通常大于面向任何给定辐射源或分别地检测器的内端（13a; 19a）的表面积的表面积。 测量辐射漫反射表面（14,17）位于两端之间。 传感器可以包括脉搏血氧计传感器。

公开(公告)号：US6029076A

公开(公告)日：2000-02-22

申请号：US433398

申请日：1995-05-08

Applicant: Richard G. Fiddian-Greene ,  Bo Holte ,  Joel C. Kent

Inventor： Richard G. Fiddian-Greene ,  Bo Holte ,  Joel C. Kent

IPC: A61B5/00 ,  A61B5/03

CPC classification number: A61B5/036 ,  A61B5/14539 ,  A61B5/14542 ,  A61B5/1459 ,  A61B5/1473 ,  A61B5/1495 ,  A61B5/4255 ,  A61B5/6853 ,  A61M2025/1061

Abstract: The method is accomplished by introducing the catheter (20) into the organ such that the sampling chamber (40) is disposed at a portion of the wall of the organ. The sampling chamber (40) is left in position at the wall of the organ for a time sufficient to allow the fluid or gas of interest to diffuse into the sampling chamber (40). The concentration of the liquid fluid or gaseous fluid of interest is analyzed. The pH of the wall of the organ may be calculated based on the concentration of the fluid or gas property of interest.

Abstract translation: PCT No.PCT / US94 / 02953 Sec。 371日期1995年5月8日 102（e）日期1995年5月8日PCT 1994年3月18日PCT公布。 第WO94 / 21163号公报 日期1994年9月29日该方法通过将导管（20）引入器官来完成，使得取样室（40）设置在器官壁的一部分。 采样室（40）被置于器官壁处的时间足以允许感兴趣的流体或气体扩散到取样室（40）中。 分析目标液体流体或气体流体的浓度。 器官壁的pH可以根据感兴趣的流体或气体性质的浓度来计算。

公开(公告)号：US5873361A

公开(公告)日：1999-02-23

申请号：US559474

申请日：1995-11-15

Applicant: Matti Hakala

Inventor： Matti Hakala

IPC: A61M16/00 ,  A61M16/08 ,  A61M16/10

CPC classification number: A61M16/08 ,  A61M16/085 ,  A61M16/0051 ,  A61M2016/1025 ,  A61M2016/103 ,  A61M2016/1035 ,  A61M2230/432 ,  A61M2230/435

Abstract: A method of preventing the formation of dangerous underpressure in a respiratory system,, which comprises a respirator (1) connected to the patient, and a sampling device (11) and a gas analyzer (3) connected thereto, in which method inspired and expired air is aspirated at a predetermined pressure for sampling through the sampling line (7). When an excess underpressure is formed in the gas analyzing unit, the aspiration of the pump (2) is prevented in the respiratory tube (15).

Abstract translation: 一种防止在呼吸系统中形成危险负压的方法，其包括连接到患者的呼吸器（1）和与之相连的取样装置（11）和气体分析器（3），其中启发和过期 在预定的压力下抽吸空气，以通过采样管线（7）进行取样。 当在气体分析单元中形成过量的负压时，在呼吸管（15）中防止泵（2）的抽吸。

公开(公告)号：US5747820A

公开(公告)日：1998-05-05

申请号：US499177

申请日：1995-07-07

Applicant: Kai Karlsson ,  Timo Merilainen ,  Kurt Weckstrom ,  Seppo Poikolainen

Inventor： Kai Karlsson ,  Timo Merilainen ,  Kurt Weckstrom ,  Seppo Poikolainen

IPC: G01J3/10

CPC classification number: G01J3/108

Abstract: The invention relates to an infrared radiation source for a gas analyzer and a method for generating infrared radiation. The infrared radiation source comprises a body (6), thermal insulation material (5) adapted inside the body (6), a radiant element (1) fitted inside the insulation material (5), elements (2, 3) for feeding electric energy to said radiant element (1), and a channel (7) formed in said body (6) and said thermal insulation material (5) in order to pass the radiation generated by said radiant element (1) to the gas under measurement. According to the invention, at least the thermal insulation material (5) adapted in close proximity to the radiant element (1) has a low thermal conductivity and the emissivity of the radiant surface (11) adapted in close proximity to the radiant element (1) is greater than 0.5 at the operating temperature of the source.

Abstract translation: 本发明涉及一种用于气体分析仪的红外辐射源和一种产生红外辐射的方法。 所述红外辐射源包括主体（6），适于所述主体（6）内部的绝热材料（5），安装在所述绝缘材料（5）内的辐射元件（1），用于馈送电能的元件（2,3） 到所述辐射元件（1）和形成在所述主体（6）和所述绝热材料（5）中的通道（7），以便将由所述辐射元件（1）产生的辐射传递到被测气体。 根据本发明，至少适于靠近辐射元件（1）的绝热材料（5）具有低热导率，辐射表面（11）的辐射率适合于辐射元件（1）附近 ）在源的工作温度下大于0.5。

公开(公告)号：US5435332A

公开(公告)日：1995-07-25

申请号：US307471

申请日：1994-09-16

Applicant: Erkki Heinonen

Inventor： Erkki Heinonen

IPC: A61M16/10 ,  B01F3/02 ,  F16K11/16 ,  F16K31/53 ,  G05D11/03

CPC classification number: B01F15/00344 ,  A61M16/104 ,  B01F3/028 ,  Y10T137/0329 ,  Y10T137/87692

Abstract: The invention relates to an apparatus for mixing gases with each other, said apparatus comprising at least two channels (1, 2) for flowing a gas therein and regulating elements (10, 11) fitted in these channels for controlling a flow progressing in the channels. One channel includes a restricting element (12) connected in series with regulating element (11) for adjusting a maximum value for a gas flowing there through, said restricting element being linked through the intermediary of a coupling assembly (15) to regulating element (10) in one channel such that the operations of regulating element (10) and restricting element (12) are linked together.The invention relates also to a method for combining gases together at a desired ratio, said gases flowing in at least two different channels (1, 2).

Abstract translation: 本发明涉及一种用于将气体彼此混合的装置，所述装置包括用于使气体流动的至少两个通道（1,2）和装配在这些通道中的调节元件（10,11），用于控制通道中的流动 。 一个通道包括与调节元件（11）串联连接的限制元件（12），用于调节在其中流过的气体的最大值，所述限制元件通过联接组件（15）中间连接到调节元件（10） ），使得调节元件（10）和限制元件（12）的操作连接在一起。 本发明还涉及一种将气体以期望的比例组合在一起的方法，所述气体在至少两个不同的通道（1,2）中流动。

公开(公告)号：US5296811A

公开(公告)日：1994-03-22

申请号：US970805

申请日：1992-11-03

Applicant: Gosta J. Ehnholm ,  Ilmari Kinanen ,  Raimo Sepponen

Inventor： Gosta J. Ehnholm ,  Ilmari Kinanen ,  Raimo Sepponen

IPC: G01R33/28 ,  G01R33/383 ,  G01V3/00

CPC classification number: G01R33/383 ,  G01R33/28

Abstract: The invention relates to a novel magnetic resonance imaging apparatus. The nuclei, protons or the paramagnetic electrons of an imaged object are cyclically polarized during a period of about one second with a permanent magnet which is then quickly shifted away from the imaged object in a permanent magnet carrier tube, so that the field of the permanent magnet would not have an interfering effect on the immediately following signal-collection for MRI-imaging. The permanent magnet can be manipulated or shifted back and forth in the tube either magnetically, pneumatically, hydraulically or mechanically. The apparatus also includes another permanent magnet or a resistive magnet coil couple, which is located in the tube near the opposite end of the tube, and which generates a homogeneous magnetic field within the imaged area. The apparatus includes a gradient coil system for generating a time-dependent magnetic field gradient necessary for imaging, as well as a coil system for producing an electromagnetic radio-frequency excitation signal to be linked with the nuclei or paramagnetic electrons of an imaged object as well as for registering the response of the nuclei or electrons to said signal. A control unit is used to control the above coils and to receive the information therefrom for producing an image or some other representation thereof.

Abstract translation: 本发明涉及一种新型的磁共振成像装置。 成像对象的核，质子或顺磁性电子在大约一秒钟的周期内被周期性地极化，永久磁铁在永磁体载体管中迅速地从成像对象中移开，从而永久磁场 磁体对于立即跟踪的MRI成像信号收集不会产生干扰。 永久磁铁可以在磁力，气动，液压或机械上在管中进行操纵或前后移动。 该装置还包括另一个永磁体或电阻性磁体线圈对，其位于管的相对端附近的管中，并且在成像区域内产生均匀的磁场。 该装置包括用于产生成像所需的时间依赖磁场梯度的梯度线圈系统，以及用于产生要与成像对象的核或顺磁性电子连接的电磁射频激励信号的线圈系统 用于记录核或电子对所述信号的响应。 控制单元用于控制上述线圈并从其接收信息以产生图像或其他一些表示。