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公开(公告)号：EP0126931A3
公开(公告)日：1986-01-08
申请号：EP84104121
申请日：1984-04-12
Inventor： Yelderman, Mark L.
Abstract: Flow, and in particular nonuniform flow, as in a vascular system, is measured by applying a stochastic excitation signal to a system inlet which results in a measurable output signal at a downstream system outlet. Flow rate may be extracted by cross-correlating the excitation signal and the output signal. Calibration may be effected by conservation of mass principles whereby quantity type parameters are related to concentration type parameters. The stochastic signal has the characteristics of white noise, such that simplified spread spectral detection and signal extraction techniques may be employed to recover the desired intelligence.
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公开(公告)号：EP0104772A3
公开(公告)日：1985-10-23
申请号：EP83304940
申请日：1983-08-25
Applicant: NELLCOR INCORPORATED
Inventor： New, William, Jr. , Corenman, James E.
CPC classification number: A61B5/14552 , A61B5/1495 , A61B2562/08 , G01N21/3151 , G01N35/00732
Abstract: A probe apparatus for use with an optical oximeter and oximeter in which a pair of light emitting means preferably diodes (10, 20, 130, 132) emit light of narrow wavebands having known characteristic wavelengths through part of a patient onto a photosensor (30, 38). A coding means comprising resistor (40) of coded known resistance or else an eight bit connector (52') is used to enable the oximeter to calculate the co-efficient of extinction of the wavelengths of the LEDs. The resistor, LEDs and photosensor are mounted on self-attaching hook and eye tape (50) for mounting the probe onto the appendage of the patient. The probe is detachably wired to the oximeter, rendering the probe completely disposable. The oximeter is programmed at the factory to calculate the co-efficients of extinction of any LEDs which may be encountered in a series of disposable probes. From the co-efficients of extinction, the pulse rate and degree of arterial oxygen saturation is computed and displayed by the oximeter.
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公开(公告)号：EP0071980A3
公开(公告)日：1985-08-21
申请号：EP82107058
申请日：1982-08-04
Applicant: SUMITOMO ELECTRIC INDUSTRIES LIMITED
Inventor： Shiga, Tetsuya , Okawa, Shinichi , Yoshida, Kenichi , Hiramoto, Junichi
CPC classification number: A61B5/14542 , A61B5/0245 , A61B5/0408 , A61B5/0816 , A61B5/1477 , A61B5/1491
Abstract: A sensor for use in detecting cardiopulmonary functions employs a skin-heating conductive surface for use in achieving vasodilitation for the measurement of PO 2 and PCO 2 . The same surface is employed as an electrode for a heartbeat and/or respiration rate measuring device.
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公开(公告)号：EP0106472A3
公开(公告)日：1985-06-12
申请号：EP83305030
申请日：1983-08-31
Applicant: PICKER INTERNATIONAL LIMITED
Inventor： Young, Ian Robert
CPC classification number: G01N24/08 , G01F1/716 , G01R33/563
Abstract: A method and apparatus for determining the rate and direction of flow of a liquid in a selected region of a body by NMR techniques. NMR is excited preferentially in a slice (43) of the body which includes the region and then a magnetic field (- Gz') having a gradient in a direction parallel to the flow of the liquid is applied, this field being effective to cause a phase difference between the resonance for the liquid which is flowing, or has flowed, in the region and the resonance for the rest of the slice. The free induction decay signal is measured, and the phase difference between the signal from the liquid, and the signal from the rest of the slice is related to the rate of flow of the liquid through the region.
Abstract translation: 用于通过NMR技术确定身体的选定区域中的液体流量和方向的方法和设备。 NMR在包括该区域的物体的切片（43）中优先被激发，然后施加在与液体流动方向平行的方向上具有梯度的磁场（-Gz'），该区域有效地引起 在区域中流动或流动的液体的共振与片层其余部分的共振之间的相位差。 测量自由感应衰减信号，来自液体的信号与来自切片其余部分的信号之间的相位差与流过该区域的液体流速有关。
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公开(公告)号：EP0109826A3
公开(公告)日：1985-05-15
申请号：EP83307000
申请日：1983-11-16
Applicant: MEDASID LTD.
Inventor： Scott, David R. , Stockham, Leo W.
IPC: A61B05/02
CPC classification number: A61B5/02416 , A61B5/1135 , A61B7/04
Abstract: A system for deriving medical information by measuring changes (10) in physical size, shape location, weight, etc., of the body or body organs comprises an electro-optical sensor (11) which is either implanted or attached to the body to detect such changes and generate electrical signals (12) responsive thereto, means (13) for conditioning the sensor output signals (12) and means (18) for processing the conditioned signals (16). Provision is made, if required, to correlate the processed signals with external data (17). The medical information (25) is useful in diagnostic, therapeutic or preventive medical procedures.
Abstract translation: 通过测量身体或身体器官的物理尺寸，形状位置，重量等的变化（10）来导出医学信息的系统包括电光传感器（11），其被植入或附接到身体以检测 这样的变化并响应于此产生电信号（12），用于调节传感器输出信号（12）的装置（13）和用于处理调节信号（16）的装置（18）。 如果需要，将处理后的信号与外部数据进行关联（17）。 医疗信息（25）可用于诊断，治疗或预防医疗程序。
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Patent Agency Ranking
公开(公告)号：EP0074055A3
公开(公告)日：1984-09-12
申请号：EP82107979
申请日：1982-08-31
Applicant: HONEYWELL INC.
Inventor： Aagard, Roger L.
CPC classification number: G01L9/0077 , A61B5/02154
Abstract: A fiber optic pressure sensor apparatus, in particular an intravascular catheter tip fiber optic pressure sensor is disclosed, wherein a lens element (11) at the end of the fiber optic (13) collimates the light emanating from the fiber and directs the light in a column towards a closely spaced reflecting diaphragm (14). The diaphragm is pressure responsive and modulates the focal length of the lens- diaphragm-mirror combination (Figure 1).
Abstract translation: 公开了一种光纤压力传感器装置，特别是血管内导管末端光纤压力传感器，其中在光纤（13）的端部处的透镜元件（11）准直从光纤发出的光并将光引导到光纤 列朝向紧密间隔的反射隔膜（14）。 隔膜是压力响应的，并调节透镜 - 光圈镜组合的焦距。
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公开(公告)号：EP0083969A3
公开(公告)日：1984-08-08
申请号：EP83300047
申请日：1983-01-05
Applicant: CRITIKON, INC.
Inventor： Parker, Dawood
CPC classification number: A61B5/14542 , A61B5/1473 , G01N33/4925
Abstract: Thin film polarographic gas sensors are described wherein the electrodes are deposited on a flexible substrate. A bilumen monopolar catheter-type sensor has a thin cathode layer (8) deposited on the wall of one lumen (4), the distal end of which is sealed by a polyurethane plug (10) such that only the outer edge surface of the cathode layer (8) is in contact with a dip-coated permeable membrane (14). The cathode layer (8) extends to the proximal end of the catheter (2) where electrical contact is made with a conductor wire (16) through electrically-conductive epoxy resin (18). When the sensor is employed umbilically or intravascularly, the second lumen (6) may be employed to withdraw samples from the patient or supply fluids thereto. The cathode layer (8) may be deposited on the catheter material in long lengths, which are then subsequently cut to the appropriate length for individual catheter-type sensors.
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公开(公告)号：EP0085577A3
公开(公告)日：1984-05-23
申请号：EP83300528
申请日：1983-02-02
Applicant: KABUSHIKI KAISHA DAINI SEIKOSHA
Inventor： Tabata, Junichi
CPC classification number: A61B5/0245
Abstract: A heart-beat rate indicator comprises a detection electrode (1) receiving an electrocardiac potential signal, circuitry (2, 3,4,5, 6) receiving the electrocardiac potential signal and determining therefrom a heart-beat rate and a switching element (7), for example a P-channel MOSFET, one side of which is connected to the detection electrode and an input of the circuitry and the other side of which is connected to ground potential. A switching circuit, for example, comprising a mechanical switch and a flip-flop circuit controls the conductive state of the switching element.
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公开(公告)号：EP0070674A3
公开(公告)日：1984-04-25
申请号：EP82303665
申请日：1982-07-13
Applicant: CRITIKON, INC.
Inventor： Lentz, David John , Houghton, Richard Burdette
CPC classification number: H01R29/00 , A61B5/028 , A61B2017/00482
Abstract: A thermodilution catheter assembly for use in determining cardiac output includes a special connector for joining the catheter to the output computer. Catheter size indicator links housed in the connector automatically communicate the size of the catheter to the computer when the connection is made. As an optional feature, the connector additionally includes means to automatically energize the computer when the connection is made.
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公开(公告)号：EP0094749A3
公开(公告)日：1984-04-11
申请号：EP83302276
申请日：1983-04-21
Applicant: AMERICAN HOME PRODUCTS CORPORATION
Inventor： Hon, Edward Harry Gee
CPC classification number: A61B5/1464 , A61B5/035 , A61B5/14542
Abstract: The monitoring of capillary blood flow in a woman's cervical wall and vaginal wall is provided so that the capillary blood flow patterns therein may be compared in order to evaluate various physiological conditions of the woman. Systems and devices for carrying out these evaluations, as well as for observing such capillary blood flow patterns separately, are provided.
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