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。

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。

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。

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）。

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。

公开(公告)号：US06823208B2

公开(公告)日：2004-11-23

申请号：US09843987

申请日：2001-04-27

申请人： Thomas Ohlsson

发明人： Thomas Ohlsson

IPC分类号： A61B50402

CPC分类号： A61B5/04288

摘要： An interface unit for an electrophysiology measurement system has a number of externally accessible electrical connectors, each connector for releasably mating with one of a number of wires from a combination of catheter-mounted sensors. A fixed configuration connector is provided in a fixed coupling to the connectors and is couplable to an electrophysiology monitoring system. The unit further has a signal generator, such as a suitably programmed EEPROM in combination with appropriate electrical circuitry mounted on an internally located printed circuit board, which generates an output signal containing information particular to and originating from the unit for use by the electrophysiology monitoring system.

摘要翻译： 用于电生理测量系统的接口单元具有多个外部可访问的电连接器，每个连接器用于与导管安装的传感器的组合可释放地与多根电线之一配合。 固定配置连接器设置在与连接器的固定耦合中，并且可耦合到电生理学监测系统。 该单元还具有信号发生器，例如适当编程的EEPROM与安装在内部定位的印刷电路板上的适当的电路组合，其产生包含特定于和来自该单元的信息的输出信号，以供电生理学监测系统使用 。

公开(公告)号：US5564428A

公开(公告)日：1996-10-15

申请号：US271714

申请日：1994-07-07

申请人： Leif Soernmo ,  Thomas Ohlsson ,  Roozbeh Atarius

发明人： Leif Soernmo ,  Thomas Ohlsson ,  Roozbeh Atarius

IPC分类号： A61B5/0452 ,  G06F17/00 ,  A61B5/0428

CPC分类号： A61B5/0428 ,  A61B5/04017 ,  A61B5/7203 ,  A61B5/7246

摘要： In a method for enhancing the signal-to-noise ratio of ECG signals, A/D-converted signals from a number of cardiac cycles are time-synchronized to form a signal ensemble, and the correlation between the signals in the ensemble is determined in time intervals, comprising at least two samples, during at least a part of the cardiac cycles. A device for enhancing the signal-to-noise ratio of ECG signals, includes circuitry for recording, A/D-converting and other processing of the ECG signals. A synchronization unit is arranged to time-synchronize the signals from a plurality of cardiac cycles to form a signal ensemble, and a calculator unit controlled by a window unit determines the correlation between the signals in the ensemble in time intervals, comprising at least two samples, during at least a part of the cardiac cycles.

摘要翻译： 在用于增强ECG信号的信噪比的方法中，来自多个心动周期的A / D转换信号被时间同步以形成信号集合，并且确定集合中的信号之间的相关性 在至少一部分心动周期中包括至少两个样本的时间间隔。 用于增强ECG信号的信噪比的装置包括用于记录，A / D转换和ECG信号的其它处理的电路。 同步单元被布置为对来自多个心动周期的信号进行时间同步以形成信号集合，并且由窗口单元控制的计算器单元以时间间隔确定集合中的信号之间的相关性，包括至少两个采样 ，在心脏周期的至少一部分。

公开(公告)号：US5532951A

公开(公告)日：1996-07-02

申请号：US266233

申请日：1994-06-27

申请人： Thomas Ohlsson ,  Peter Karlsson

发明人： Thomas Ohlsson ,  Peter Karlsson

IPC分类号： A61B5/0452 ,  A61B5/0428 ,  G06F17/10 ,  A61B5/0402

CPC分类号： A61B5/0428

摘要： A device for eliminating ringing in filtered ECG signals includes an analog-to-digital for converting the ECG input signals into a series of digital values, and a filter unit connected to the output of the analog-to digital converter. The filter unit includes a recursive IIR-filter and a subsequent allpass filter with a phase shift which is equal to twice the phase shift of the IIR filter. The allpass filtering is performed time-reversed with respect to the IIR filtering. In a method for producing an allpass filter, for use in the above device, having a phase shift which is equal to twice the phase shift of an IIR filter, the IIR filter having zero points situated on the unity circle in the Z-plane, the zero points of the IIR filter are replaced by new zero points obtained by reflecting the poles of the filter in the unity circle in the Z-plane.

摘要翻译： 用于消除经滤波的ECG信号中的振铃的装置包括用于将ECG输入信号转换成一系列数字值的模拟数字信号，以及连接到模数转换器的输出的滤波器单元。 滤波器单元包括递归IIR滤波器和具有等于IIR滤波器的相移的两倍的相移的后续全通滤波器。 全通滤波相对于IIR滤波进行时间反转。 在用于制造全通滤波器的方法中，为了在上述装置中使用具有等于IIR滤波器的相移的两倍的相移的IIR滤波器，具有位于Z平面中的单位圆上的零点， IIR滤波器的零点由通过将滤波器的极点反映在Z平面中的单位圆中获得的新的零点代替。

公开(公告)号：US5509248A

公开(公告)日：1996-04-23

申请号：US311917

申请日：1994-09-26

申请人： Fredrik Dellby ,  Thomas Ohlsson

发明人： Fredrik Dellby ,  Thomas Ohlsson

IPC分类号： F16L59/06 ,  F16L59/04 ,  F25D23/06 ,  B65G53/28

CPC分类号： F16L59/04 ,  F25D23/062 ,  F25D2201/122 ,  F25D2201/14 ,  Y10S220/09

摘要： A boxlike body (10) with a rear wall (12) and four side walls (14) is brought into a fixture (34) with the free edges (22) of the side walls pointing downwards. The walls of the body are filled with insulating powder by blowing the powder into the rear wall (12) by gaseous medium of a first pressure. The powder is then packed by gaseous medium of a second pressure, which is higher than the first pressure, being let into the rear wall. During the filling and packing the media is let out via a filter element (24) arranged at the free edges (22) of the side walls. After the filling and packing the media is evacuated from the walls through the filter element (24). The body can then be used as a so-called vacuum insulation in a refrigerator or freezer.

摘要翻译： 具有后壁（12）和四个侧壁（14）的盒状体（10）被带入固定装置（34）中，侧壁的自由边缘（22）向下指向。 通过第一压力的气体介质将粉末吹入后壁（12），体内的墙壁填充绝缘粉末。 然后将粉末通过比第一压力高的第二压力的气体介质包装进入后壁。 在填充和包装期间，通过设置在侧壁的自由边缘（22）处的过滤元件（24）将介质排出。 在填充和包装之后，介质通过过滤元件（24）从壁排出。 然后可以将身体用作冰箱或冷柜中的所谓真空绝热。

公开(公告)号：US5433208A

公开(公告)日：1995-07-18

申请号：US117067

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 ,  H03H17/00 ,  H03H17/02 ,  H03H17/06 ,  A61N5/04

CPC分类号： H03H17/02 ,  A61B5/04017

摘要： Apparatus for filtering out baseline fluctuations from physiological measurement signals. The apparatus comprises a first nonrecursive low-pass filter with a downstream stage for the reduction of the sampling rate, a second nonrecursive filter connected thereto, a subsequent interpolation stage to increase the sampling rate and a subtraction stage, in which the baseline fluctuations retained by the low-pass filtering are subtracted from the measurement signals affected by baseline fluctuations. To reduce the number of computing operations to be performed in the course of the sampling filtering, the first low-pass filter comprises a recursive filter. a1

摘要翻译： PCT No.PCT / EP92 / 00474 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。 WO92 / 15243 PCT出版物 日期1992年9月17日。从生理测量信号滤除基线波动的装置。 该装置包括具有用于降低采样率的下游级的第一非递归低通滤波器，连接到其上的第二非递归滤波器，用于增加采样率的后续内插级和减法级，其中由 从受基线波动影响的测量信号中减去低通滤波。 为了减少在采样过滤过程中要执行的计算操作的数量，第一低通滤波器包括递归滤波器。