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1. 发明授权

US06828894B1 Isolation transformer arrangement 失效
标题翻译：隔离变压器布置
公开(公告)号：US06828894B1
公开(公告)日：2004-12-07
申请号：US10070680
申请日：2002-03-07
申请人： Harald Sorger , Thomas Ohlsson
发明人： Harald Sorger , Thomas Ohlsson
IPC分类号： H01F500
CPC分类号： H01F27/2823 , H01F27/2804 , H01F29/02 , H01F2019/085
摘要： An isolation transformer arrangement has an isolation transformer having magnetically coupled primary and secondary windings, one of which is formed of at least one planar conductive run formed on an associated face of an insulating substrate of a printed circuit board and the other is formed of a number of turns of an insulated wire conductor. The printed circuit board also has one or more discreet electric components arranged in two electrically separate circuits each circuit connectable to a respective one of the primary and the secondary windings of the isolation transformer. The insulation of the wire conductor winding provides a desired level of electrical isolation between the circuits necessary for use in medical equipment.
摘要翻译：隔离变压器布置具有隔离变压器，其具有磁耦合的初级和次级绕组，其中之一由形成在印刷电路板的绝缘基板的相关表面上的至少一个平面导电行程形成，另一个形成为数字绝缘电线导体的匝数。印刷电路板还具有布置在两个电分离电路中的一个或多个离散电气部件，每个电路可连接到隔离变压器的主绕组和次级绕组中的相应一个。电线导体绕组的绝缘在医疗设备所需的电路之间提供所需的电气隔离水平。

2. 发明授权

US5873646A Lighting arrangement at a refrigerator or freezer cabinet 失效
标题翻译：照明安排在冰箱或冷柜
公开(公告)号：US5873646A
公开(公告)日：1999-02-23
申请号：US822594
申请日：1997-03-20
申请人： Adam Fjaestad , Thomas Ohlsson
发明人： Adam Fjaestad , Thomas Ohlsson
IPC分类号： F21V33/00 , F21V7/00 , F25D27/00
CPC分类号： F25D27/00 , F21V7/005 , F25D2400/04
摘要： A lamp (34) for a refrigerator or freezer cabinet is located forwardly and above a horizontal edge (38) of an access opening (16) to a storage space (12) for goods in the cabinet. The lamp (34) illuminates the space (12) through the access opening by means of a reflector (36). The reflector (36) includes a cylindrical part (52) having a semi-elliptical cross-sectional shape. A concave side of the cylindrical part (52) faces the access opening (16). The lamp has a filament (42) which shines in the shape of a line (44) running parallel to the edge (38) and through one (42) of the focal points of the ellipse. The other focal point (58) of the ellipse is located quite close to and outside the edge (38), so that the light from the filament (42) first is reflected by the cylindrical part (52) of the reflector (36) and then passes through the other focal point (58) on its way into the space (12).
摘要翻译：用于冰箱或冷冻柜的灯（34）位于进入开口（16）的水平边缘（38）的上方，位于柜体内的商品的存放空间（12）的上方。灯（34）通过反射器（36）通过进入开口照射空间（12）。反射器（36）包括具有半椭圆形横截面形状的圆柱形部分（52）。圆筒部（52）的凹面朝向进入口（16）。该灯具有沿着平行于边缘（38）延伸的线（44）的形状并穿过椭圆的焦点的一个（42）的细丝（42）。椭圆的另一个焦点（58）非常接近边缘（38）并且位于边缘（38）外侧，使得来自灯丝（42）的光首先被反射器（36）的圆柱形部分（52）反射，并且然后在其进入空间（12）的途中穿过另一个焦点（58）。

3. 发明授权

US5479933A Method and apparatus for processing ECG signals 失效
标题翻译：用于处理ECG信号的方法和装置
公开(公告)号：US5479933A
公开(公告)日：1996-01-02
申请号：US264719
申请日：1994-06-23
申请人： Roozbeh Atarius , Thomas Ohlsson , Leif Soernmo
发明人： Roozbeh Atarius , Thomas Ohlsson , Leif Soernmo
IPC分类号： A61B5/0472 , A61B5/0452 , G06F17/00
CPC分类号： A61B5/04525
摘要： In a method and apparatus for processing ECG signals for the purpose of detecting low-amplitude signal structures hidden in noise in the ECG signal, the ECG signals, number of cardiac cycles are analog-to-digital converted, and QRS complexes in the converted signals are detected. The signals from at least two cardiac cycles are cross-correlated, and the correlation between these signals in time intervals which comprise at least the time intervals of the two samples is determined. An output quantity representing the degree of correlation is thus obtained, the magnitude of this quantity designating the amplitude of the signal structure in question. This magnitude can then be analyzed to determine if, and where in the signal, the signal structure arises.
摘要翻译：在用于检测ECG信号中噪声隐藏的低幅度信号结构的ECG信号处理的方法和装置中，ECG信号，心跳周期数被模数转换，并且QRS在转换信号中复合被检测到。来自至少两个心动周期的信号是交叉相关的，并且确定包括两个样本的至少时间间隔的时间间隔中的这些信号之间的相关性。因此，获得表示相关程度的输出量，该量的大小指示所讨论的信号结构的振幅。然后可以分析该幅度以确定是否在信号中以及何处出现信号结构。

4. 发明授权

US06488530B2 Interface unit for an electrophysiological monitoring system 有权
标题翻译：电生理监测系统接口单元
公开(公告)号：US06488530B2
公开(公告)日：2002-12-03
申请号：US09801545
申请日：2001-03-07
申请人： Thomas Ohlsson
发明人： Thomas Ohlsson
IPC分类号： H01R300
CPC分类号： A61B5/04286
摘要： An interface unit for establishing an electrical coupling of a number of sensor wires from a combination of catheters with a number of electrical signal channels of a electrophysiological monitoring system has a number of electrical contacts for coupling individual wires with individual channels. Each contact is releasably engageable with an individual wire. A number of overlays which are removably locatable at the outer surface and are attached to the housing of the unit by binding rings. Each overlay carries on a face thereof a visible indication of a different one of a number of stored wire/contact configurations. The configurations are organized such that contacts for receiving wires from a same catheter are grouped together and the indication is formed as visibly differentiated regions, each de-marking a different grouping.
摘要翻译：用于建立来自导管的组合的许多传感器导线与电生理监测系统的多个电信号通道的电耦合的接口单元具有多个用于将单个线与各个通道连接的电触点。每个触点都可以与单根导线可释放地接合。多个覆盖层可拆卸地定位在外表面并且通过绑定环附接到单元的壳体。每个覆盖层在其表面上承载多个存储的线/接触配置中的不同的一个的可见指示。配置被组织使得用于接收来自相同导管的导线的接触件被分组在一起，并且该指示形成为可视差分区域，每个区域对不同的分组进行标记。

5. 发明授权

US5068658A Method and apparatus for analog-to-digital conversion 失效
标题翻译：用于模数转换的方法和装置
公开(公告)号：US5068658A
公开(公告)日：1991-11-26
申请号：US662445
申请日：1991-02-28
申请人： Thomas Ohlsson , Bo Hjorth
发明人： Thomas Ohlsson , Bo Hjorth
IPC分类号： A61B5/0428 , A61B5/0476 , H03H17/00 , H03M1/10 , H03M1/12 , H03M1/18 , H03M1/20
CPC分类号： H03M1/1019 , H03M1/12
摘要： A method for analog-to-digital conversion of a chronologically changing, analog input signal includes the steps of forming an edited signal from an input signal by subjecting the input signal to a first transfer function and amplifying the result by a defined gain factor, sampling the input signal and the edited signal and subjecting the sampled signals to analog-to-digital conversion to obtain first and second digital data respectively corresponding to the edited signal and the input signal. The number of bits in each of the first and second digital data determines the dynamic range of the analog-to-digital conversion. The first digital data, corresponding to the input signal, are multiplied by a defined factor equal to the defined gain factor. If a transgression of the dynamic range in the analog-to-digital conversion has not occurred, the final analog-to-digital conversion result is calculated making use of the second digital data corresponding to the edited signal. If the dynamic range has been transgressed, the digital data corresponding to the edited signal are not used to determine the final conversion result. An apparatus for practicing the method is also disclosed.
摘要翻译：一种用于按时间顺序变化的模拟输入信号的模数转换的方法包括以下步骤：通过对输入信号进行第一传递函数并且将结果放大一定的增益因子，从输入信号形成经编辑的信号，采样输入信号和编辑信号，对采样信号进行模数转换，以获得分别对应于编辑信号和输入信号的第一和第二数字数据。第一和第二数字数据中的每一个中的位数确定模数转换的动态范围。对应于输入信号的第一数字数据乘以与定义的增益因子相等的限定因子。如果没有发生模数转换中的动态范围的违规，则使用与编辑信号相对应的第二数字数据来计算最终的模数转换结果。如果动态范围已经过渡，则与编辑信号相对应的数字数据不用于确定最终的转换结果。还公开了一种用于实施该方法的装置。

6. 发明授权

US4023565A Circuit arrangement for the processing of physiological measuring signals 失效
标题翻译：用于处理生理测量信号的电路布置
公开(公告)号：US4023565A
公开(公告)日：1977-05-17
申请号：US588467
申请日：1975-06-19
申请人： Thomas Ohlsson
发明人： Thomas Ohlsson
IPC分类号： A61B5/0428 , A61B5/04 , G06G7/14 , H03F3/68
CPC分类号： A61B5/7203 , A61B5/04 , A61B5/04004 , G06G7/14 , H03F3/68
摘要： A circuit arrangement for the processing of physiological measuring signals, in which there is provided a plurality of input amplifiers each having a positive and a negative input, whose output signals control a signal reproducing arrangement, and which are each connected to a collector electrode. Connected to the positive inputs of the input amplifier are the collector electrodes for the signals, and that resistors are located between the negative inputs and the outputs of the input amplifiers, the negative inputs being connected across resistors with a common potential junction, and that the two inputs of a differential amplifier are connected to the outputs of respectively two input amplifiers, the output signal of the differential amplifier controlling the signal reproducing arrangement, and in which the common potential junction is connected to the collector electrode.
摘要翻译：一种用于处理生理测量信号的电路装置，其中设置有多个输入放大器，每个输入放大器具有正输入和负输入，其输出信号控制信号再现装置，并且各自连接到集电极。连接到输入放大器的正输入端是用于信号的集电极，电阻位于输入放大器的负输入和输出之间，负输入端连接在具有公共电位结的电阻上，差分放大器的两个输入分别连接到两个输入放大器的输出，差分放大器的输出信号控制信号再现装置，并且其中公共电位结连接到集电极。

7. 发明授权

US5921939A Device for monitoring measurement electrodes to detect the presence of faults in electrode, leads and in the connection of the electrodes to a patient 失效
标题翻译：用于监测测量电极以检测电极，引线中的故障以及电极与患者的连接的装置
公开(公告)号：US5921939A
公开(公告)日：1999-07-13
申请号：US24973
申请日：1998-02-06
申请人： Peter Danielsson , Thomas Ohlsson
发明人： Peter Danielsson , Thomas Ohlsson
IPC分类号： A61B5/0408 , A61B5/0424 , A61B5/053 , A61B5/0428
CPC分类号： A61B5/0424 , A61B5/0531 , A61B5/0535
摘要： In a device for monitoring measurement electrodes, attached to a patient in order to pick up physiological measurement signals, and a neutral electrode and associated leads at the same time as physiological measurement signals are picked up, each measurement electrode is connected to an input terminal on its associated measurement amplifier. A test signal generator is arranged to generate a pure AC signal, without any direct current component, across the neutral electrode attached to a patient during the pickup of measurement signals.
摘要翻译：在用于监测测量电极的装置中，为了拾取生理测量信号而连接到患者，以及在拾取生理测量信号的同时中性电极和相关联的引线，每个测量电极连接到输入端上其相关的测量放大器。测试信号发生器被布置成在拾取测量信号期间跨越附接到患者的中性线产生没有任何直流分量的纯AC信号。

8. 发明授权

US5469856A Method and device for filtering out baseline fluctuations from an electrocardiogram 失效
标题翻译：从心电图滤除基线波动的方法和装置
公开(公告)号：US5469856A
公开(公告)日：1995-11-28
申请号：US117069
申请日：1993-12-22
申请人： Lena Lundstrom , Peter Karlsson , Thomas Ohlsson
发明人： Lena Lundstrom , Peter Karlsson , Thomas Ohlsson
IPC分类号： A61B5/0428 , A61B5/04
CPC分类号： A61B5/04017 , A61B5/04004
摘要： Method and device for filtering out baseline fluctuations from an electrocardiogram. It is known to provide a high pass filter for filtering out baseline fluctuations from an electrocardiogram, the lower cut off frequency of a high pass filter is at a value below the frequencies which are characteristic of the heart signals at the lowest possible heart rate. In order to increase the effectiveness of the baseline filtering, it is provided that in a device (4) the current heartbeat rate is determined from the electrocardiogram and, in dependence thereupon, the lower cut off frequency of the filter (2) is altered in such a manner that the lower cut off frequency is increased in the case of an increasing heartbeat rate and is decreased in the case of a decreasing heartbeat rate.
摘要翻译： PCT No.PCT / EP92 / 00473 Sec。 371日期：1993年12月22日 102（e）日期1993年12月22日PCT提交1992年3月4日PCT公布。出版物WO92 / 15242 日期：1992年9月17日。从心电图滤除基线波动的方法和装置。已知提供用于滤除来自心电图的基线波动的高通滤波器，高通滤波器的较低截止频率处于低于以最低可能心率的心脏信号特征的频率的值。为了提高基线滤波的有效性，规定在器件（4）中，根据心电图确定当前的心跳速率，并且依赖于滤波器（2）的较低截止频率被改变在心跳速度增加的情况下，下切断频率增加，并且在心率降低的情况下减小。

9. 发明授权

US5792063A Device for monitoring measurement electrodes, devised for picking up physiological measurement signals, and their leads 失效
标题翻译：用于监测测量电极的装置，用于拾取生理测量信号及其引线
公开(公告)号：US5792063A
公开(公告)日：1998-08-11
申请号：US834664
申请日：1997-04-11
申请人： Peter Danielsson , Thomas Ohlsson
发明人： Peter Danielsson , Thomas Ohlsson
IPC分类号： A61B5/0408 , A61B5/0424 , A61B5/053 , A61B5/04
CPC分类号： A61B5/0424 , A61B5/0531 , A61B5/0535
摘要： In a device for monitoring measurement electrodes, attached to a patient in order to pick up physiological measurement signals, and a neutral electrode and associated leads at the same time as physiological measurement signals are picked up, each measurement electrode is connected to an input terminal on its associated measurement amplifier. A test signal generator is arranged to generate a pure AC signal, without any direct current component, across the neutral electrode attached to a patient during the pickup of measurement signals.
摘要翻译：在用于监测测量电极的装置中，为了拾取生理测量信号而连接到患者，以及在拾取生理测量信号的同时中性电极和相关联的引线，每个测量电极连接到输入端上其相关的测量放大器。测试信号发生器被布置成在拾取测量信号期间跨越附接到患者的中性线产生没有任何直流分量的纯AC信号。

10. 发明授权

US5772603A Device for filtering ECG signals 失效
标题翻译： ECG信号滤波器
公开(公告)号：US5772603A
公开(公告)日：1998-06-30
申请号：US867959
申请日：1997-06-03
申请人： Thomas Ohlsson , Peter Karlsson
发明人： Thomas Ohlsson , Peter Karlsson
IPC分类号： A61B5/0452 , A61B5/0428 , H03H17/00 , H03H17/02 , H03H17/08 , H03H21/00
CPC分类号： A61B5/0428
摘要： A device for filtering ECG signals has an A/D converter and a filter unit connected to the converter's output. The filter unit includes a filter, or a combination of filters with a non-linear phase response such that signals with frequencies in the passband of the filter, or the combination of filters, are delayed more than signals with frequencies in the transition band between the passband and the suppressed frequency band of the filter, or the combination of filters. A method for producing an FIR filter, with a phase response opposite to the phase response of a filter for filtering out DC components, or an IIR filter, suitable for use in the above-described device, is also disclosed in which the impulse response from the filter for filtering out DC components and low-frequency components or the IIR filter is reversed in time and sampled. The sampled values are then used for determining coefficients for the FIR filter.
摘要翻译：用于过滤ECG信号的装置具有连接到转换器输出的A / D转换器和滤波器单元。滤波器单元包括滤波器或具有非线性相位响应的滤波器的组合，使得具有滤波器的通带中的频率的信号或滤波器的组合被延迟多于具有在滤波器的通带和抑制频带，或滤波器的组合。还公开了一种用于产生具有与用于滤除DC分量的滤波器的相位响应相反的相位响应的FIR滤波器的方法或适用于上述装置的IIR滤波器，其中来自用于滤除直流分量和低频分量的滤波器或IIR滤波器在时间上反转并采样。采样值然后用于确定FIR滤波器的系数。

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