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    • 1. 发明授权
    • Branching unit and arrangement for delivering a respiratory gas of a subject
    • 用于传送受试者呼吸气体的分支单元和布置
    • US08353295B2
    • 2013-01-15
    • US12490427
    • 2009-06-24
    • Heikki Haveri
    • Heikki Haveri
    • A61B5/08
    • A61M16/08A61M16/0833A61M16/085
    • A branching unit for delivering a respiratory gas of a subject is disclosed herein. The branching unit includes a first limb for delivering an expiratory gas during an expiratory phase and a second limb for delivering an inspiratory gas during an inspiratory phase. The branching unit also includes a third limb for delivering both the expiratory gas and the inspiratory gas and a common branching point for the first limb, the second limb and the third limb. The first limb, the second limb and the third limb include a volume for the respiratory gas and which volume includes both an active volume with the gas exchanging between the inspiratory phase and the expiratory phase and a dead volume for the respiratory gas with insufficient gas exchange from the inspiratory phase to the expiratory phase and the dead volume being less than 1 ml.
    • 本文公开了用于输送对象的呼吸气体的分支单元。 分支单元包括用于在呼气阶段期间递送呼气气体的第一分支和用于在吸气阶段期间递送吸气气体的第二分支。 分支单元还包括用于输送呼气气体和吸气气体的第三分支和用于第一分支,第二分支和第三分支的公共分支点。 第一肢,第二肢和第三肢包括呼吸气体的体积,并且该体积包括在吸气阶段和呼气阶段之间的气体交换的活动体积和气体交换不足的呼吸气体的死体积 从吸气阶段到呼气阶段,死体积小于1ml。
    • 2. 发明申请
    • MEASURING GAS COMPONENTS TOGETHER WITH A PARAMAGNETIC GAS
    • 测量气体成分与参比气体
    • US20070227230A1
    • 2007-10-04
    • US11690539
    • 2007-03-23
    • Heikki HaveriKurt Weckstrom
    • Heikki HaveriKurt Weckstrom
    • G01N29/02
    • G01N27/74G01N2291/02863G01N2291/02872
    • The invention concerns a gas analyzer, which comprises: an electromagnet that has an air gap; a power source for supplying cyclically variable electrical current/voltage to said electromagnet; a sample gas conduit and a reference gas conduit opening into said air gap; an exit conduit communicating with said air gap for removing the intermixed sample and reference gases; pressure detecting microphone or microphones connected to said sample gas conduit and to said reference gas conduit for sensing gas pressures at a first acoustic measuring frequency in the respective conduits for giving at least one acoustic pressure signal component; and electronics connected to said microphone(s) to receive said acoustic pressure signal component or components to form at least a first intermediate output signal describing content of a paramagnetic gas component in the sample gas.
    • 本发明涉及一种气体分析仪,其包括:具有气隙的电磁体; 用于向所述电磁体提供循环可变电流/电压的电源; 样品气体管道和通向所述气隙的参考气体管道; 与所述空气间隙连通的出口导管,用于去除混合的样品和参考气体; 连接到所述样品气体导管和所述参考气体导管的压力检测麦克风或麦克风,用于感测各管道中的第一声学测量频率的气体压力,用于给出至少一个声压信号分量; 以及连接到所述麦克风以接收所述声压信号分量的电子器件,以形成至少描述样气中顺磁性气体成分含量的第一中间输出信号。
    • 3. 发明授权
    • Vibrating element liquid discharging apparatus having gas pressure sensing
    • 具有气体压力感测的振动元件排液装置
    • US06978779B2
    • 2005-12-27
    • US10126224
    • 2002-04-19
    • Heikki Haveri
    • Heikki Haveri
    • A61M15/00A61M16/08A61M16/16A61M11/00B05B17/06
    • A61M16/08A61M15/0085A61M16/147A61M16/16
    • A nebulizer determines the pressure and flow direction of the receiving gas for atomized liquid. A member of the apparatus is subjected to pressure exerted by the gas. The member is coupled to a bi-directional mechanical-electrical conversion element, such as a piezoelectric element, to form a pressure transducer. The member exerts a mechanical loading on the element responsive to the gas pressure to which it is subjected. In one embodiment, the element mechanically vibrates responsive to alternating electrical energization to discharge the liquid into the gas. The electrical admittance of the element is alterable by the mechanical loading applied to the element by the member. The difference between admittances measured in the loaded condition of the element and in an unloaded condition at the selected energization frequency is an indication of the pressure of the gas. By observing whether the magnitude of the admittance in the loaded state is greater or less than that in the unloaded state, the flow direction of the gas may also be determined. Or the flow direction may be determined by observing the changes in admittance as the frequency of the electrical energization is varied. In another embodiment, the piezoelectric element is not energized. The electrical output of the element, when subjected to a mechanical loading from the gas pressure, is used to detect gas pressures and/or as an indication of the gas pressure.
    • 雾化器确定雾化液体的接收气体的压力和流动方向。 装置的构件受到气体施加的压力。 该构件耦合到诸如压电元件的双向机械 - 电转换元件,以形成压力换能器。 该构件响应于其所经受的气体压力而对元件施加机械载荷。 在一个实施例中,元件响应于交替的电通电而机械地振动以将液体排放到气体中。 元件的电导纳可以由构件施加到元件上的机械载荷来改变。 在元件的加载状态下和在所选择的通电频率下的无负载状态下测量的导纳之间的差异表示气体的压力。 通过观察负载状态下的导纳的大小是否大于或小于无负载状态的导纳的大小,也可以确定气体的流动方向。 或者可以通过观察导通的变化来确定电流方向,因为电激励的频率是变化的。 在另一个实施例中,压电元件不通电。 当从气体压力受到机械负载时,元件的电输出用于检测气体压力和/或作为气体压力的指示。
    • 5. 发明申请
    • SENSOR
    • 传感器
    • US20110046500A1
    • 2011-02-24
    • US12711741
    • 2010-02-24
    • Heikki Haveri
    • Heikki Haveri
    • A61B5/087
    • A61B5/0878A61B5/097A61B5/4818
    • A sensor for measuring a respiration is disclosed herein. The sensor includes at least one housing (7) having a first cavity (12) with a first port (11) allowing a respiration gas flow, and a second cavity (22) with a second port (21) also allowing a respiration gas flow. The sensor also includes at least one breathing detector (51) for acquiring a signal indicative of the respiration gas flowing through the first cavity and the second cavity. The at least one housing is equipped with at least one additional port (31) for removing the respiration gas flow coming from the first cavity and the second cavity, which additional port being separate from the first port and the second port.
    • 本文公开了一种用于测量呼吸的传感器。 传感器包括至少一个具有第一空腔(12)的壳体(7),第一空腔(12)具有允许呼吸气体流动的第一端口(11),以及具有第二端口(21)的第二空腔(22),其还允许呼吸气体流 。 传感器还包括至少一个呼吸检测器(51),用于获取指示流过第一腔和第二腔的呼吸气体的信号。 所述至少一个壳体配备有至少一个附加端口(31),用于去除来自第一腔体和第二腔室的呼吸气体流,该附加端口与第一端口和第二端口分离。
    • 6. 发明授权
    • Measuring gas components together with a paramagnetic gas
    • 测量气体组分和顺磁性气体
    • US07752886B2
    • 2010-07-13
    • US11690539
    • 2007-03-23
    • Heikki HaveriKurt Weckström
    • Heikki HaveriKurt Weckström
    • G01N29/02
    • G01N27/74G01N2291/02863G01N2291/02872
    • The invention concerns a gas analyzer, which comprises: an electromagnet that has an air gap; a power source for supplying cyclically variable electrical current/voltage to said electromagnet; a sample gas conduit and a reference gas conduit opening into said air gap; an exit conduit communicating with said air gap for removing the intermixed sample and reference gases; pressure detecting microphone or microphones connected to said sample gas conduit and to said reference gas conduit for sensing gas pressures at a first acoustic measuring frequency in the respective conduits giving at least one acoustic pressure signal component; and electronics connected to said microphone(s) to receive said acoustic pressure signal component or components to form at least a first intermediate output signal describing content of a paramagnetic gas component in the sample gas.
    • 本发明涉及一种气体分析仪,其包括:具有气隙的电磁体; 用于向所述电磁体提供循环可变电流/电压的电源; 样品气体管道和通向所述气隙的参考气体管道; 与所述空气间隙连通的出口导管,用于去除混合的样品和参考气体; 压力检测麦克风或麦克风连接到所述样品气体导管和所述参考气体导管,用于感测在相应导管中的第一声学测量频率的气体压力,给出至少一个声压信号分量; 以及连接到所述麦克风以接收所述声压信号分量的电子器件,以形成至少描述样气中顺磁性气体成分含量的第一中间输出信号。
    • 7. 发明申请
    • Detector mounting in paramagnetic gas analyzers
    • 检测器安装在顺磁性气体分析仪中
    • US20070084265A1
    • 2007-04-19
    • US11548885
    • 2006-10-12
    • Heikki Haveri
    • Heikki Haveri
    • G01N27/74
    • G01N27/74
    • The invention relates to paramagnetic gas analyzer with a housing, comprising: an electromagnet with an air gap; power source for said electromagnet; a sample gas conduit and a reference gas conduit into said air gap; an exit conduit communicating with said air gap for removing the intermixed gases; pressure detecting microphones connected to said sample gas conduit and to said reference gas conduit for sensing the gas pressures; as well as electronics. The pressure detecting microphones comprise two independent microphonic membranes that are parallel to each other, their pressure surfaces being to the same direction, or to the opposite directions. The electrical outputs of the microphones provide signals that are proportional to gas pressures in the sample gas and reference gas conduits, and that are further processed in the electronics to eliminate effects of mechanical shocks or the like.
    • 本发明涉及具有壳体的顺磁性气体分析仪,包括:具有气隙的电磁体; 所述电磁体的电源; 样品气体管道和参考气体管道进入所述气隙; 与所述气隙连通的出口导管,用于去除混合气体; 压力检测麦克风连接到所述样品气体导管和所述参考气体导管,用于感测气体压力; 以及电子产品。 压力检测麦克风包括彼此平行的两个独立的麦克风膜,它们的压力表面是相同的方向或相反的方向。 麦克风的电气输出提供与样品气体和参考气体管道中的气体压力成比例的信号,并且在电子设备中进一步处理以消除机械冲击等的影响。
    • 9. 发明授权
    • Simplified beam splitter for IR gas sensor
    • 用于红外气体传感器的简化光束分离器
    • US08586930B2
    • 2013-11-19
    • US12565099
    • 2009-09-23
    • Heikki HaveriKurt Peter Weckstrom
    • Heikki HaveriKurt Peter Weckstrom
    • G01J5/02
    • G01N21/3504G01J3/427G01N2021/3177
    • A non-dispersive single beam detection assembly in an infrared gas analyzer. The detection assembly comprises radiation source(s) providing infrared radiation, a measuring chamber, and a physical beam splitter for dividing said radiation beam into a reflected beam portion and a transmitted beam portion, or for combining a reflected beam portion and a transmitted beam portion into said radiation beam. A measuring detector receives one beam portions, and a reference detector receives another beam portion. Alternatively a measuring/reference detector receives both beam portions. Said transmitted beam portion has a first spectral intensity peak at shorter wavelengths with a first peak wavelength, and said reflected beam portion has a second spectral intensity peak at longer wavelengths with a second peak wavelength. There is a wavelength gap between said second peak wavelength and said first peak wavelength, which gap corresponds a wavelength shift of an optical interference filter with said second peak wavelength as tilted from its perpendicular position to an angled position. Said wavelength gap is at maximum 10% of the second peak wavelength, and at minimum 0.5% of the second peak wavelength.
    • 红外气体分析仪中的非分散单光束检测组件。 检测组件包括提供红外辐射的辐射源,测量室和物理分束器,用于将所述辐射束分成反射光束部分和透射光束部分,或用于组合反射光束部分和透射光束部分 进入所述辐射束。 测量检测器接收一个光束部分,并且参考检测器接收另一光束部分。 或者,测量/参考检测器接收两个光束部分。 所述透射光束部分具有在具有第一峰值波长的较短波长处的第一光谱强度峰值,并且所述反射光束部分在具有第二峰值波长的较长波长处具有第二光谱强度峰值。 在所述第二峰值波长和所述第一峰值波长之间存在波长间隙,该间隙对应于具有从其垂直位置倾斜到成角度位置的所述第二峰值波长的光学干涉滤光器的波长位移。 所述波长间隙为第二峰值波长的最大值10%,并且为第二峰值波长的最小值的0.5%。