公开(公告)号：US06616896B2

公开(公告)日：2003-09-09

申请号：US09840931

申请日：2001-04-24

Applicant: Lawrence L. Labuda ,  Perry R. Blazewicz ,  Leslie E. Mace ,  Jerry R. Apperson ,  Walter A. Cooke

Inventor： Lawrence L. Labuda ,  Perry R. Blazewicz ,  Leslie E. Mace ,  Jerry R. Apperson ,  Walter A. Cooke

IPC: G01N2164

CPC classification number: A61B5/097 ,  A61B5/0833 ,  A61B2562/02 ,  G01N21/6428 ,  Y10T436/207497 ,  Y10T436/209163

Abstract: Apparatus or systems which employ luminescence quenching to produce a signal indicative of oxygen concentration. Components of such systems include: an airway adapter, sampling cell, or the like, having a sensor which is excited into luminescence with the luminescence decaying in a manner reflecting the concentration of oxygen in gases flowing through the airway adapter or other flow device; a transducer which has a light source for exciting a luminescable composition in the sensor into luminescence and a light sensitive detector for converting energy emitted from the luminescing composition as that composition is quenched into an electrical signal indicative of oxygen concentration in the gases being monitored; and subsystems for maintaining the sensor temperature constant and for processing the signal generated by the light sensitive detector. Sensors for systems of the character just described, methods of fabricating those sensors, and methods for installing the sensors in the flow device are also described.

Abstract translation: 采用发光淬灭以产生指示氧浓度的信号的装置或系统。 这种系统的组件包括：气道适配器，采样单元等，其具有被激发成发光的传感器，其中发光以反映流过气道适配器或其它流动装置的气体中的氧浓度的方式衰减; 传感器，其具有用于将传感器中的可发光组合物激发成发光的光源和用于将该发光组合物发射的能量转换成指示所监视气体中的氧浓度的电信号的光敏检测器; 以及用于保持传感器温度恒定并用于处理由光敏检测器产生的信号的子系统。 还描述了刚刚描述的角色系统的传感器，制造这些传感器的方法，以及用于在流动装置中安装传感器的方法。

公开(公告)号：US5153436A

公开(公告)日：1992-10-06

申请号：US686139

申请日：1991-04-16

Applicant: Jerry R. Apperson ,  Daniel W. Knodle ,  Lawrence L. Labuda ,  James T. Russell ,  Gary M. Bang

Inventor： Jerry R. Apperson ,  Daniel W. Knodle ,  Lawrence L. Labuda ,  James T. Russell ,  Gary M. Bang

IPC: G01J3/10 ,  G01J3/36 ,  G01N21/35

CPC classification number: G01N21/3504 ,  G01J3/10 ,  G01J3/36

Abstract: A detector unit which is capable of outputting electrical signals proportional in magnitude to the intensity of that energy in a beam thereof which lies in two different wavelength bands. A beam splitter directs energy in those bands from the entire compass of the beam to a data detector and a reference detector, and bandpass filters and optical traps in front of those detectors ensure that only energy in the selected bands and from the beam reach them. The detectors are mounted in precisely aligned relationship with each other and the beam splitter on, and are electrically isolated from, a monolithic, conductive, isothermal support which allows them to be maintained at the same, selected temperature by a system including data and reference detector heaters and a temperature responsive controller.

Abstract translation: 检测器单元，其能够输出与在其两个不同波长带中的波束中的该能量强度成正比的电信号。 分束器将这些频带中的能量从光束的整个罗盘引导到数据检测器和参考检测器，并且这些检测器前面的带通滤波器和光阱陷阱确保只有所选波段和波束中的能量到达它们。 检测器以彼此精确对准的关系安装，分束器与整体式导电等温支架电隔离，允许它们通过包括数据和参考检测器的系统保持在相同的选定温度 加热器和温度响应控制器。

公开(公告)号：US5146092A

公开(公告)日：1992-09-08

申请号：US687012

申请日：1991-04-16

Applicant: Jerry R. Apperson ,  Daniel W. Knodle ,  Lawrence L. Labuda ,  James T. Russell ,  Gary M. Bang

Inventor： Jerry R. Apperson ,  Daniel W. Knodle ,  Lawrence L. Labuda ,  James T. Russell ,  Gary M. Bang

IPC: G01J3/10 ,  G01J3/36 ,  G01N21/35

CPC classification number: G01N21/3504 ,  G01J3/10 ,  G01J3/36

Abstract: A transducer for nondispersive infrared gas analysis has heaters for the data and reference detectors to maintain the detectors at a selected temperature. A heater is also provided to heat the casing of an airway adapter associated with the transducer to a temperature high enough to keep condensation from forming. The detector unit is surrounded and electrostatically shielded by a boxlike component with barndoor extensions which are closed to shield the installed detector unit at that end of the shield through which the detector unit is installed. The detector unit, electrostatic shield, and a circuit board which carries power supply and preamplifier circuits are installed in the transducer housing which has separate end closures sealed thereto with a through fastener and internal guides for locating the shielded detector unit in the housing.

Abstract translation: 用于非分散红外气体分析的传感器具有用于数据和参考检测器的加热器，以将检测器保持在选定的温度。 还提供加热器以将与换能器相关联的气道适配器的壳体加热到足够高的温度以保持冷凝不会形成。 检测器单元被带有门室延伸部的盒状部件包围并静电屏蔽，该门壳延伸部被封闭以将安装的检测器单元屏蔽在安装有检测器单元的屏蔽端。 携带电源和前置放大器电路的检测器单元，静电屏蔽和电路板安装在换能器壳体中，该壳体具有通过紧固件和内部引导件将密封在其上的单独的封闭件固定在壳体中。

公开(公告)号：US4914720A

公开(公告)日：1990-04-03

申请号：US275014

申请日：1988-11-21

Applicant: Daniel W. Knodle ,  Leslie E. Mace ,  Lawrence L. Labuda

Inventor： Daniel W. Knodle ,  Leslie E. Mace ,  Lawrence L. Labuda

IPC: A61B5/083 ,  A61B5/097

CPC classification number: A61B5/0836 ,  A61B5/097

Abstract: Gas analyzers of the non-dispersive infrared radiation type which are designed to measure the concentration of one gas in a mixture of gases containing that gas. An infrared radiation emitter is employed to emit energy at a frequency of 40-100 Hz with a system which includes a source driver and a timer; and a detector is used to intercept the attenuated beam after it has passed through the mixture being analyzed and output a signal indicative of the concentration of the selected gas. Also, a second detector is preferably provided so that a ratioed, error eliminating output signal can be supplied to the failsafe, signal processing circuitry of the analyzer. The detectors are electrically biased by way of flyback transformer based circuitry to improve the signal-to-noise ratio, and the signal processing circuitry can be adjusted to compensate for drift. The detectors are mounted on a thermally conductive substrate along with appropriate filters, a filter frame, and a cover. The signal processing circuitry and an analog-to-digital convertor supply information to a microcomputer which: turns the infrared radiation emitter on and off and controls a heater which keeps the infrared radiation detectors at a constant, precise temperature. The microcomputer also supplies temperature, barometric pressure, and other compensation factors. Typically, a disposable airway adapter with an elongated, flanged casing will be included in the gas analyzer to confine the gases being analyzed to a path having a transverse dimension of precise and specific length and to provide an optical path across that stream of gases between the infrared radiation emitter and the infrared radiation detectors. The emitter and detectors are incorporated in a transducer head which has a U-shaped recess and can be detachably fixed to the airway adapter with a detent arrangement.This application is a continuation of application Ser. No. 146,284 filed Jan. 20, 1988 (now abandoned). U.S. application Ser. No. 146,284 is a division of application Ser. No. 024,770 filed Mar. 11, 1987 (now U.S. Pat. No. 4,859,858). Application Ser. No. 024,770 is a continuation-in-part of application Ser. No. 938,030 filed Dec. 4, 1986, by Daniel W. Knodle et al. and entitled GAS ANALYZERS (now abandoned).

公开(公告)号：US4558708A

公开(公告)日：1985-12-17

申请号：US664152

申请日：1984-10-24

Applicant: Lawrence L. Labuda ,  Daniel W. Knodle

Inventor： Lawrence L. Labuda ,  Daniel W. Knodle

IPC: A61M16/08 ,  A61B5/00

CPC classification number: A61M16/08 ,  A61M16/085 ,  A61M2205/7536

Abstract: A patient's airway adapter is fitted into a patient's airway, which is a combined breathing air supply and exhaust gas fluid flow passageway. The housing of this patient's airway adapter connects directly to a standard tapered tracheostomy or endotracheal tube connection or standard tapered portions of other fittings, and in turn provides a standard tapered connection to a patient's airway. The main air and gas stream, respectively, going to and from a patient, continues to flow directly through the patient's airway adapter. Samples of the patient's gas are withdrawn through a smaller diameter sampling exhaust port in the housing. The sampled patient's gas, immediately upon leaving the main air and gas stream, passes from the interior of a hollow cylindrical hydrophobic liquid baffle, through the baffle, and then into the sampling cannula enroute to a monitor. This hydrophobic baffle is held in a sealed position within the surrounding housing. Any mucus, sputum, and/or condensed water is kept from entering the smaller diameter sampling exhaust port, and therefore from entering the sampling cannula, as it collects on the inside of a cylindrical hydrophobic liquid baffle. The hydrophobic baffle material is a hydrophobic, hollow cylindrical baffle, having an unobstructed internal diameter in all embodiments.

Abstract translation: 将患者的气道适配器安装到患者的气道中，该气道是组合的呼吸空气供应和排气流体流动通道。 该患者气道适配器的外壳直接连接到标准锥形气管切开或气管插管连接或其他配件的标准锥形部分，从而提供与患者气道的标准锥形连接。 分别来往和来自病人的主要空气和气体流继续直接通过患者的气道适配器流动。 患者气体的样品通过外壳中较小直径的取样排气口排出。 取样的患者气体，在离开主要空气和气体流时立即从中空圆柱形疏水性液体挡板的内部通过挡板，然后进入采样套管进入监视器。 该疏水挡板保持在周围壳体内的密封位置。 任何粘液，痰液和/或冷凝水都不会进入较小直径的采样排气口，因此当其收集在圆柱形疏水性液体挡板的内部时，进入取样插管。 疏水挡板材料是疏水的中空圆柱形挡板，在所有实施例中都具有无阻碍的内径。