公开(公告)号：US06645158B2

公开(公告)日：2003-11-11

申请号：US10128105

申请日：2002-04-23

申请人： James R. Mault

发明人： James R. Mault

IPC分类号： A61B508

CPC分类号： A61B5/0833

摘要： An indirect calorimeter for measuring the metabolic activity of a subject includes a respiratory connector operative to be supported in contact with the subject so as to pass inhaled and exhaled gases therethrough as the subject breathes, and a flow tube forming a flow pathway for passing inhaled and exhaled gases therethrough, wherein one end of the flow tube is operatively connected to the respiratory connector and the other end of the flow tube is open, and a wall of the flow tube includes an opening. The indirect calorimeter also includes a flow meter adapted to generate a signal as a function of the instantaneous volume of inhaled and exhaled gases in the flow pathway that is in fluid communication with the flow pathway via the opening in the flow tube, and an oxygen sensor operative to generate a signal as a function of the instantaneous fraction of oxygen in the inhaled and exhaled gases in the flow pathway that is in fluid communication with the flow pathway via the opening in the flow tube. The indirect calorimeter further includes a processor for receiving the signals from the flow sensor and the oxygen sensor and using the signals to determine the oxygen consumption of the subject over a period of time.

公开(公告)号：US06629933B1

公开(公告)日：2003-10-07

申请号：US09959424

申请日：2002-01-28

申请人： Bernd Lindner

发明人： Bernd Lindner

IPC分类号： A61B508

CPC分类号： A61B5/0833 ,  A61B5/0836 ,  G01N33/497

摘要： The invention relates to an inexpensive method in which the partial pressure of a gas component in the air exhaled by a patient is determined per breath.

摘要翻译： 本发明涉及一种廉价的方法，其中每个呼吸确定由患者呼出的空气中的气体成分的分压。

公开(公告)号：US06626846B2

公开(公告)日：2003-09-30

申请号：US09964579

申请日：2001-09-28

申请人： David William Spencer

发明人： David William Spencer

IPC分类号： A61B508

CPC分类号： A61B5/091

摘要： In a meter for assessing ventilatory capacity, a piston is free of any sliding contact with the body of the meter except over a region which extends axially not less than about 25% of the piston's diameter. In this way, tilting of the piston is avoided. Sliding contact is further reduced by the piston or wall having contact ribs extending axially.

摘要翻译： 在用于评估换气能力的仪表中，活塞不会与仪表主体滑动接触，除了沿轴向延伸不小于活塞直径的约25％的区域外。 以这种方式，避免了活塞的倾斜。 通过具有轴向延伸的接触肋的活塞或壁进一步减小滑动接触。

公开(公告)号：US06572561B2

公开(公告)日：2003-06-03

申请号：US10096202

申请日：2002-03-12

申请人： James R. Mault

发明人： James R. Mault

IPC分类号： A61B508

CPC分类号： A61B5/029 ,  A61B5/083 ,  A61B5/0833 ,  A61B5/0836 ,  A61B5/087

摘要： An indirect calorimeter operative to measure the respiratory oxygen consumption per unit time of a subject includes a respiratory connector operative to be supported in contact with a subject, so as to pass respiratory gases as the subject breathes into the respiratory connector, and a bi-directional flow meter having an ultrasonic flow transducer that bi-directionally transmits and receives ultrasonic signals to the transducer to generate a signal as a function of the volume of gases passing through the flow meter. The indirect calorimeter also includes a gas concentration sensor operative to generate a signal as a function of an instantaneous carbon dioxide content of gases passing by the gas concentration sensor. The indirect calorimeter further includes a computing device operative to receive signals from the flow meter and the gas concentration sensor, and conduits interconnecting the respiratory connector, the flow meter and the gas concentration sensor, so that the subject's inhalations and exhalations pass through the flow meter and the subject's exhalations pass over the gas concentration sensor and the computer is operative to receive the signals from the gas concentration sensor and the flow meter to calculate the subject's oxygen consumption.

公开(公告)号：US06554776B1

公开(公告)日：2003-04-29

申请号：US09989998

申请日：2001-11-21

申请人： Michael G. Snow ,  Bernhard H. Kaeferlein ,  Jeffrey G. Thieret

发明人： Michael G. Snow ,  Bernhard H. Kaeferlein ,  Jeffrey G. Thieret

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。

公开(公告)号：US06544192B2

公开(公告)日：2003-04-08

申请号：US09961618

申请日：2001-09-24

申请人： Eric W. Starr ,  Michael T. Kane ,  Eugene N. Scarberry

发明人： Eric W. Starr ,  Michael T. Kane ,  Eugene N. Scarberry

IPC分类号： A61B508

CPC分类号： A61B5/087 ,  A61G11/00 ,  A61M16/024 ,  A61M16/06 ,  A61M16/0666 ,  A61M16/085 ,  A61M16/0858 ,  A61M16/101 ,  A61M16/1055 ,  A61M16/106 ,  A61M2016/0039 ,  A61M2230/432

摘要： A patient monitoring apparatus for quantatively measuring a physiological characteristic of a patient. A first patient interface communicates with an airway of a patient such that substantially all gas inhaled and exhaled by the patient passes through the first patient interface. One or more vent elements associated with the first patient interface communicate the first patient interface with an ambient atmosphere so that a pressure differential is created between the pressure in the first patient interface and the pressure of the ambient atmosphere. A sensor communicates with the first patient interface and measures a fluid characteristic resulting from this pressure differential and outputs a first signal indicative of that characteristic. The output from the sensor is used alone, or in combination with the output from other sensors that detect other physiological characteristics, to provide a variety of information about the patient.

公开(公告)号：US06544190B1

公开(公告)日：2003-04-08

申请号：US09922375

申请日：2001-08-03

申请人： Matthijs P. Smits ,  Bryan P. Flaherty

发明人： Matthijs P. Smits ,  Bryan P. Flaherty

IPC分类号： A61B508

CPC分类号： A61B5/0836

摘要： A noninvasive apparatus and method for measuring a subject's end tidal carbon monoxide concentration is disclosed, featuring the ability to (i) determine carbon monoxide concentration on a breath-by-breath basis, (ii) determine mean carbon monoxide concentration by averaging local carbon monoxide values, (iii) avoid the premature determination that an end tidal phase is over, and (iv) determine when breath variability or system variability will likely preclude accurate testing. The disclosed device and method allow for more robust determination of end tidal carbon monoxide concentration in subjects with turbulent or irregular breath patterns.

摘要翻译： 公开了一种用于测量受试者末端潮气一氧化碳浓度的非侵入性装置和方法，其特征在于（i）基于呼吸基准确定一氧化碳浓度，（ii）通过平均局部一氧化碳来确定平均一氧化碳浓度 值，（iii）避免过早确定结束潮汐阶段结束，以及（iv）确定何时呼吸变异性或系统变异性可能排除准确测试。 所公开的装置和方法允许在具有湍动或不规则呼吸模式的受试者中更加鲁棒地确定末端潮汐一氧化碳浓度。

公开(公告)号：US06517496B1

公开(公告)日：2003-02-11

申请号：US09674899

申请日：2000-11-07

申请人： James R. Mault

发明人： James R. Mault

IPC分类号： A61B508

CPC分类号： A61B5/083 ,  A61B5/029 ,  A61B5/087 ,  A61B5/1455

摘要： A respiratory gas analyzer for measuring the cardiac output of a subject includes a flow meter and an oxygen sensor interconnected with one another between a mouthpiece and a source of respiratory gases, which may be a controlled source or the atmosphere. An oximeter provides measurements of the oxygen saturation of the subject. A computer connected to receive the signals from the flow meter, oxygen sensor, and oximeter can then calculate the subject's cardiac output.

摘要翻译： 用于测量受试者的心输出量的呼吸气体分析器包括彼此相互连接的流量计和氧气传感器，所述流量计和气体传感器在接口与呼吸气体源之间相互连接，呼吸气体源可以是受控的源或大气。 血氧计提供受试者氧饱和度的测量。 连接到接收来自流量计，氧气传感器和血氧计的信号的计算机然后可以计算受试者的心输出量。

公开(公告)号：US06491642B1

公开(公告)日：2002-12-10

申请号：US09852195

申请日：2001-05-09

申请人： Peter Stasz

发明人： Peter Stasz

IPC分类号： A61B508

CPC分类号： A61B5/0816 ,  A61B7/003 ,  A61B2560/0252 ,  A61B2562/0204

摘要： A combination thermal and vibration sensor for use in sleep monitoring equipment comprises a thin film of a plastic exhibiting both pyroelectric and piezoelectric properties. By providing a layer of foam material totally covering one major surface of the plastic film layer, it is found that the thermal mass of the sensor is changed to the point where the pyroelectric signal can more readily be isolated from the piezoelectric signal using conventional signal processing techniques.

摘要翻译： 用于睡眠监测设备的组合式热和振动传感器包括具有热电和压电特性的塑料薄膜。 通过提供完全覆盖塑料膜层的一个主表面的泡沫材料层，发现传感器的热质量被改变为使用常规信号处理可以更容易地将热释电信号与压电信号隔离的点 技术

公开(公告)号：US06475157B2

公开(公告)日：2002-11-05

申请号：US09768537

申请日：2001-01-24

申请人： Stephen James Wilson

发明人： Stephen James Wilson

IPC分类号： A61B508

CPC分类号： A61B5/0806

摘要： Disclosed is a neck seal for use in a volume displacement plethysmograph for investigating pulmonary function of infants. The neck seal includes particulate material entrapped in a space between two layers of flexible sheets. The two flexible sheets have aligned openings to allow an infant's neck to be located therein. The sheets are sealed together around the openings and along a closed figure extending around the openings, thereby forcing the space closed. The seal becomes rigid when a vacuum is applied to the space.

摘要翻译： 公开了用于体积位移体积描记器中用于调查婴儿肺功能的颈部密封。 颈部密封件包括被夹在两层柔性片之间的空间中的颗粒物质。 两个柔性片具有对准的开口以允许婴儿的颈部位于其中。 这些片材围绕开口密封在一起并沿着围绕开口延伸的封闭图形密封，从而迫使空间被封闭。 当真空施加到空间时，密封件变得刚性。