Gasless calibration in metabolic gas analyzers
    2.
    发明授权
    Gasless calibration in metabolic gas analyzers 有权
    代谢气体分析仪中无气体校准

    公开(公告)号:US07805975B2

    公开(公告)日:2010-10-05

    申请号:US11899335

    申请日:2007-09-05

    IPC分类号: G01N33/00

    摘要: A method of calibrating a metabolic analyzer incorporating an oxygen analyzer and a NDIR carbon dioxide analyzer in the field that does not require the use of gas cylinders containing gases of known concentration is described. In calibrating the CO2 detector, at the time of factory setup, the detector output for a gas of a known concentration is measured and stored in the memory of the metabolic analyzer's microprocessor, as is the detector output voltage when the IR source is dimmed by a known percentage. Subsequently, in the field, CO2 levels in ambient air and cell pressure are measured at two different flow rates through the sample chamber and the IR source is again dimmed by the same percentage as had been used at the time of factory setup. Based upon the resulting readings, both the zeroing and span adjustment factors can be computed.

    摘要翻译: 描述了一种校准含有氧分析仪和NDIR二氧化碳分析仪的代谢分析仪的方法,该方法不需要使用含有已知浓度气体的气瓶。 在校准CO2检测器时,在出厂设置时,测量已知浓度的气体的检测器输出,并将其存储在代谢分析仪微处理器的存储器中,如同红外源被灰色调制的检测器输出电压一样 已知百分比。 随后,在现场,通过样品室以两种不同的流速测量环境空气中的二氧化碳含量和电池压力,红外光源再次以与出厂设置时相同的百分比进行调光。 根据得到的读数,可以计算归零和量程调整因子。

    Pulmonary diagnostic system
    3.
    发明授权
    Pulmonary diagnostic system 失效
    肺诊断系统

    公开(公告)号:US4796639A

    公开(公告)日:1989-01-10

    申请号:US117482

    申请日:1987-11-05

    IPC分类号: G06F19/00 G06F15/42

    摘要: A pulmonary diagnostic apparatus includes a personal computer including a memory for storing expected values, each representing a predicted normal level for a pulmonary function. A parameter limit file stores abnormality limits, each related to one of the expected values. A configuration file contains a plurality of degree of severity labels and numerical breakpoints between severity degrees. Finally, a statement data file contains a plurality of textual statements concerning lung functions and diseases or conditions. The three files are operatively associated with the computer. Lung function measuring equipment also is connected to the computer, whereby measured values are compared with the expected values. Based on the comparison, the computer generates an output identifying certain measured values as abnormal, and the degree of abnormality. Also, appropriate statements from the statement data file are generated as output, based upon the comparison. By selectively editing the parameter limit, configuration and statement files, the operator can cause the computer to generate an output corresponding to the operator's preferred analytical approach and syntax.

    摘要翻译: 肺部诊断装置包括个人计算机,其包括存储预期值的存储器,每个表示肺功能的预测正常水平。 参数限制文件存储每个与预期值之一相关的异常限制。 一个配置文件包含多个严重级别的严重度级别和严重程度之间的数字断点。 最后,声明数据文件包含多个关于肺功能和疾病或病症的文本语句。 这三个文件与计算机可操作地相关联。 肺功能测量设备也连接到计算机,从而将测量值与预期值进行比较。 根据比较,计算机生成识别某些测量值为异常的输出和异常程度。 此外,基于比较,将生成来自语句数据文件的适当语句作为输出。 通过选择性地编辑参数限制,配置和语句文件,操作员可以使计算机生成与操作员的首选分析方法和语法相对应的输出。

    Boxless measurement of thoracic gas volume
    4.
    发明授权
    Boxless measurement of thoracic gas volume 失效
    无胸腔测量胸腔积气量

    公开(公告)号:US5857459A

    公开(公告)日:1999-01-12

    申请号:US800655

    申请日:1997-02-04

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

    CPC分类号: A61B5/091 A61B5/0809

    摘要: A portable apparatus for measuring the thoracic lung volume of a patient without enclosing the patient in a sealed chamber, comprising first and second impedance belts, a flow meter, shutter and a microprocessor-based controller. The flow meter includes pressure transducers for measuring the change in volume and pressure as the patient respires therethrough. The change in thoracic cage volume of the patient's lungs is directly correlated with the change of impedance in the belts. The thoracic lung volume is then determined from a measured barometric pressure, the measured change in pressure and the measured volume change in the thoracic cage volume utilizing a correction factor to determine the thoracic cage volume.

    摘要翻译: 一种便携式装置,用于测量患者的胸腔肺容积,而不将患者包围在密封室中,包括第一和第二阻抗带,流量计,快门和基于微处理器的控制器。 流量计包括用于测量患者通过其呼吸的体积和压力变化的压力传感器。 患者肺部胸笼体积变化与皮带阻抗变化直接相关。 然后从测量的大气压力,测量的压力变化和胸腔笼体积中测量的体积变化利用校正因子来确定胸腔笼体积来确定胸肺体积。

    Respiratory exchange ratio sensor
    5.
    发明授权
    Respiratory exchange ratio sensor 有权
    呼吸交换比传感器

    公开(公告)号:US07390304B2

    公开(公告)日:2008-06-24

    申请号:US11095271

    申请日:2005-03-31

    摘要: A device for directly measuring a person's respiratory exchange ratio (RER) utilizes a Zn-air battery cell and a constant current load circuit as an O2 pump capable of drawing oxygen from expired air. A thermistor located in the flow path forms a leg of a bridge circuit whose output is proportional to oxygen concentration in the expired air and, therefore, to oxygen uptake. The thermistor flowmeter circuit utilizes the thermal conductivity differences between O2 and CO2 to provide a measure at the relative ratio of the two gases present.

    摘要翻译: 用于直接测量人的呼吸交换比(RER)的装置利用Zn空气电池单元和恒流负载电路作为能够从呼出空气中吸取氧的O 2泵。 位于流动路径中的热敏电阻形成桥接电路的腿,其输出与呼出空气中的氧浓度成比例,因此与氧摄取成比例。 热敏电阻流量计电路利用O 2 2和CO 2 2之间的导热系数差来提供存在的两种气体的相对比率的量度。

    Flow meter system
    6.
    发明授权
    Flow meter system 失效
    流量计系统

    公开(公告)号:US5038773A

    公开(公告)日:1991-08-13

    申请号:US535045

    申请日:1990-06-08

    摘要: A flow meter system having a disposable mouthpiece including symmetrically disposed pitot tubes for measuring the velocity of the respiratory gases flowing through the mouthpiece and an electronic module including sensitive pressure transducers coupled to the mouthpiece and operative over a wide dynamic range provides input signals to a signal processing network for converting the pressure readings to flow information useful in cardiopulmonary performance analyzing equipment.

    摘要翻译: 一种流量计系统,其具有包括对称设置的皮托管的一次性接口管,用于测量流过接口管的呼吸气体的速度,以及包括耦合到接口并且在宽动态范围上操作的灵敏压力传感器的电子模块,提供输入信号到信号 处理网络,用于将压力读数转换为在心肺功能分析设备中有用的流量信息。

    Gasless calibration in metabolic gas analyzers
    7.
    发明申请
    Gasless calibration in metabolic gas analyzers 有权
    代谢气体分析仪中无气体校准

    公开(公告)号:US20090056409A1

    公开(公告)日:2009-03-05

    申请号:US11899335

    申请日:2007-09-05

    IPC分类号: G01N33/00

    摘要: A method of calibrating a metabolic analyzer incorporating an oxygen analyzer and a NDIR carbon dioxide analyzer in the field that does not require the use of gas cylinders containing gases of known concentration is described. In calibrating the CO2 detector, at the time of factory setup, the detector output for a gas of a known concentration is measured and stored in the memory of the metabolic analyzer's microprocessor, as is the detector output voltage when the IR source is dimmed by a known percentage. Subsequently, in the field, CO2 levels in ambient air and cell pressure are measured at two different flow rates through the sample chamber and the IR source is again dimmed by the same percentage as had been used at the time of factory setup. Based upon the resulting readings, both the zeroing and span adjustment factors can be computed.

    摘要翻译: 描述了一种校准含有氧分析仪和NDIR二氧化碳分析仪的代谢分析仪的方法,该方法不需要使用含有已知浓度气体的气瓶。 在校准CO2检测器时,在出厂设置时,测量已知浓度的气体的检测器输出,并将其存储在代谢分析仪微处理器的存储器中,如同红外源被灰色调制的检测器输出电压一样 已知百分比。 随后,在现场,通过样品室以两种不同的流速测量环境空气中的二氧化碳含量和电池压力,红外光源再次以与出厂设置时相同的百分比进行调光。 根据得到的读数,可以计算归零和量程调整因子。

    Tile type fencing insert
    8.
    发明授权
    Tile type fencing insert 失效
    瓷砖型围栏插入物

    公开(公告)号:US06669175B2

    公开(公告)日:2003-12-30

    申请号:US10117410

    申请日:2002-04-05

    IPC分类号: F16B100

    CPC分类号: E04H17/066

    摘要: A rectangular sheet of flexible and resilient material such as plastic with notches at the midpoint of its sides. The size of the sheet and notches allow the insert to be placed into and located by a cell of a chain link fence. Notches fit around the wire crossovers of the chain link fence and locate the insert at the mid-plane of the fence. The corners of the insert extend into adjoining cells. Adjoining inserts overlap to provide complete visual privacy. The tile-like nature of the inserts allows great flexibility in arrangements and colors to provide visual privacy, decoration, words, logos, or signage.

    摘要翻译: 一种矩形的柔性和弹性材料,例如塑料,其侧面中点处有凹口。 片材和凹口的尺寸允许将插入物放置在链节栅栏的单元中并由其定位。 槽口围绕链节栅栏的电线交叉,并将插入物放置在围栏的中间平面处。 刀片的角部延伸到相邻的单元格中。 相邻插入重叠,以提供完整的视觉隐私。 嵌入式瓷砖的特性允许在布置和颜色上提供极大的灵活性,以提供视觉隐私,装饰,单词,标志或标牌。

    Method for detecting anaerobic threshold and prescribing a training zone to maximize fat utilization or improved cardiovascular fitness
    9.
    发明授权
    Method for detecting anaerobic threshold and prescribing a training zone to maximize fat utilization or improved cardiovascular fitness 有权
    检测厌氧阈值和规定训练区以最大化脂肪利用或改善心血管适应度的方法

    公开(公告)号:US06554776B1

    公开(公告)日:2003-04-29

    申请号:US09989998

    申请日:2001-11-21

    IPC分类号: A61B508

    CPC分类号: A61B5/222 A63B24/0075

    摘要: A method for prescribing an exercise regimen for a particular subject to either maximize cardiovascular performance or to lose weight involves the use of a microprocessor-based cardiopulmonary exercise system to measure oxygen uptake and carbon dioxide production on a breath-by-breath basis. These measured quantities are used to calculate energy expenditure and a subject's respiratory exchange ratio from which a fat metabolization curve can be plotted. By examining the length of a plateau in the curve where the fat substrate utilization is maximized, and noting the average heart rate in this zone, a target heart rate for optimal weight loss is arrived at. If the goal of the exercise is cardiovascular improvement, the anaerobic threshold can readily be determined as the midpoint between maximal fat utilization and the maximum acceleration towards the point where the respiratory exchange ratio becomes equal to 1 or the fat metabolism goes to 0. By noting the average heart rate at the anaerobic threshold, a target heart rate for optimizing cardiovascular fitness may be arrived at.

    摘要翻译: 用于规定特定受试者的运动方案以最大化心血管性能或减肥的方法涉及使用基于微处理器的心肺运动系统来测量吸气和二氧化碳在呼吸基础上的产生。 这些测量量用于计算能量消耗和受试者的呼吸交换比例,从中可以绘制脂肪代谢曲线。 通过检查脂肪底物利用率最大化的曲线中的平台长度,并注意到该区域的平均心率,达到最佳体重减轻的目标心率。 如果运动的目标是心血管改善,则厌氧阈值可以容易地被确定为最大脂肪利用率与呼吸交换比等于1或脂肪代谢变为0的点的最大加速度之间的中点。通过注意 可以达到无氧阈值下的平均心率,用于优化心血管健康的目标心率。