Anesthetic filter arrangement with variable retention of gas by the filter
    1.
    发明授权
    Anesthetic filter arrangement with variable retention of gas by the filter 失效
    麻醉过滤器布置,可通过过滤器保留气体

    公开(公告)号:US06745771B2

    公开(公告)日:2004-06-08

    申请号:US10013246

    申请日:2001-12-10

    Abstract: 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.

    Abstract translation: 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。

    Method and apparatus for maintaining a defined respiratory gas flow
pattern to a subject by identifying a transfer function of the
connection system
    2.
    发明授权
    Method and apparatus for maintaining a defined respiratory gas flow pattern to a subject by identifying a transfer function of the connection system 失效
    通过识别连接系统的传递函数来将定义的呼吸气体流动模式维持到对象的方法和装置

    公开(公告)号:US5743253A

    公开(公告)日:1998-04-28

    申请号:US588684

    申请日:1996-01-19

    Abstract: 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.

    Abstract translation: 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。

    Gas dosing device
    3.
    发明授权

    公开(公告)号:US07032592B2

    公开(公告)日:2006-04-25

    申请号:US10457606

    申请日:2003-06-09

    CPC classification number: A61M16/1045 A61M16/12

    Abstract: A device for the dosing of a dry additive gas into a breathing gas in a ventilator system, the ventilator system including a tubing system connectable by at a distal end to a patient, and has a dosing tube connectable to the tubing system for dosing to the distal end of the tubing system. The dosing tube is composed of a tube section having a moisture permeable contact surface, adapted to interact with moisture from exhaled breathing gas, so the dry additive gas is humidified before dosing to the distal end of the tubing system.

    Anesthetic administration apparatus which delivers anesthetic in
microdroplets
    5.
    发明授权
    Anesthetic administration apparatus which delivers anesthetic in microdroplets 失效
    以微滴方式输送麻醉剂的麻醉管理装置

    公开(公告)号:US5771882A

    公开(公告)日:1998-06-30

    申请号:US711654

    申请日:1996-09-09

    Abstract: An anesthetic apparatus has a dosing unit for an anesthetic agent, the dosing unit having a number of containers, each holding a liquid anesthetic agent. The containers are connected by liquid lines to a valve unit, capable of selectively connecting one container at a time to a micropump which dispenses anesthetic in the form of liquid droplets directly to a connection piece in the anesthetic apparatus, to which a patient can be connected. A control unit controls the micropump and the valve unit and regulates both the selection and dispensing of liquid anesthetic.

    Abstract translation: 麻醉装置具有用于麻醉剂的给药单元,所述给药单元具有多个容器,每个容器均容纳液体麻醉剂。 容器通过液体管线连接到阀单元,能够一次选择性地将一个容器连接到微型泵,将微滴形式的麻醉剂直接分配到麻醉设备中的连接件上,患者可以连接到该连接件 。 控制单元控制微泵和阀单元并调节液体麻醉剂的选择和分配。

    Method for determining the concentration of a specific gas and an
analyzer
    6.
    发明授权
    Method for determining the concentration of a specific gas and an analyzer 失效
    确定特定气体和分析仪浓度的方法

    公开(公告)号:US5739910A

    公开(公告)日:1998-04-14

    申请号:US756690

    申请日:1996-11-26

    Applicant: Rolf Castor

    Inventor: Rolf Castor

    CPC classification number: G01N21/211 G01N2021/8585

    Abstract: A method and an analyzer for determining the concentration of and/or identifying a specific gas are described. The analyzer has a test chamber through which a gas sample is carried. The gas sample then passes across a first substrate on which a first coating and a second coating are arranged. The second coating is made of a substance which selectively absorbs a specific gas, or a specific group of gases. A light source directs a light beam with a pre-defined polarization at the substrate and coatings. Polarization of the ensuring reflected light beam changes due to reflection in and interaction with the coatings. This change is determined by a calculation unit by determining the reflected light beam's polarization in a photodetector. Adsorption causes polarization changes which are only related to the concentration of the specific gas which can accordingly be identified.

    Abstract translation: 描述了用于确定特定气体的浓度和/或识别特定气体的方法和分析器。 分析仪具有测试室,通过该测试室携带气体样品。 气体样品然后穿过其上布置有第一涂层和第二涂层的第一基板。 第二涂层由选择性吸收特定气体或特定气体组的物质制成。 光源在衬底和涂层处引导具有预定义偏振的光束。 确保反射光束的偏振由于在涂层中的反射和与涂层的相互作用而改变。 该变化由计算单元通过确定光电检测器中的反射光束的偏振来确定。 吸附会导致极化变化,这些变化仅与特定气体的浓度有关,因此可以相应地识别。

    Method for determining the functional residual capacity of lungs and a
ventilator for practicing said method
    7.
    发明授权
    Method for determining the functional residual capacity of lungs and a ventilator for practicing said method 失效
    用于确定肺的功能残余容量的方法和用于实施所述方法的呼吸机

    公开(公告)号:US5540233A

    公开(公告)日:1996-07-30

    申请号:US327990

    申请日:1994-10-24

    CPC classification number: A61B5/091 A61B5/0813

    Abstract: 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.

    Abstract translation: 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。

    Method for determining gas content in a breathing apparatus, and a breathing apparatus operating according to the method
    8.
    发明授权
    Method for determining gas content in a breathing apparatus, and a breathing apparatus operating according to the method 失效
    用于确定呼吸装置中的气体含量的方法和根据该方法操作的呼吸装置

    公开(公告)号:US06450968B1

    公开(公告)日:2002-09-17

    申请号:US09654480

    申请日:2000-09-01

    Abstract: 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.

    Abstract translation: 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。

    Gas analyzer
    10.
    发明授权
    Gas analyzer 失效
    气体分析仪

    公开(公告)号:US6014889A

    公开(公告)日:2000-01-18

    申请号:US184060

    申请日:1998-11-02

    Applicant: Rolf Castor

    Inventor: Rolf Castor

    CPC classification number: G01N33/0011 Y10T436/207497

    Abstract: 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.

    Abstract translation: 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。

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