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1. 发明授权

US5361755A Method and apparatus for medical monitoring 失效
标题翻译：医疗监护方法和装置
公开(公告)号：US5361755A
公开(公告)日：1994-11-08
申请号：US12328
申请日：1993-02-02
申请人： Martin Schraag , Andreas Boos
发明人： Martin Schraag , Andreas Boos
IPC分类号： A61B5/00 , A61B5/03 , A61B5/0432 , G06F19/00
CPC分类号： A61B5/0432 , A61B5/0011 , A61B5/4362 , G06F19/3406 , G06F19/3418 , G06F19/363 , G06F19/322
摘要： A medical monitor, such as a fetal monitor, is provided with a code reader, e.g. a bar code reader. A manual contains clear text instructions as well as predefined codes in their correct sequential form. The instructions help the unskilled user to operate the monitor, and the actual monitor functions are triggered by scanning the codes, instead of pushing buttons, turning knobs etc. A questionnaire may also be provided to enter answers to anamnesis data. These answers, together with vital signs data, may be transmitted via telephone lines to a hospital, which makes the medical monitor ideally suited for home monitoring applications.
摘要翻译：诸如胎儿监视器的医疗监视器被提供有代码阅读器，例如，一个条码阅读器。手册包含明文指令以及其正确顺序格式的预定义代码。这些说明帮助不熟练的用户操作显示器，并且通过扫描代码来触发实际的监视功能，而不是按下按钮，转动旋钮等。还可以提供问卷以输入回忆数据。这些答案以及生命体征数据可以通过电话线传送到医院，这使得医疗监视器理想地适用于家庭监视应用。

2. 发明授权

US5309918A Transducer for converting floating ground potential signals to non-floating signals and method of use 失效
标题翻译：用于将浮地电位信号转换为非浮动信号的传感器及其使用方法
公开(公告)号：US5309918A
公开(公告)日：1994-05-10
申请号：US10498
申请日：1993-01-28
申请人： Martin Schraag
发明人： Martin Schraag
IPC分类号： A61B5/024 , A61B5/0428 , A61B5/0444
CPC分类号： A61B5/4362 , A61B5/02411 , A61B5/04282 , A61B5/0444 , Y10S128/908
摘要： A transducer for medical monitoring comprises a box (73) which contains a floating section, a non-floating section and a transformer or optical coupler for converting a floating signal into a non-floating signal. The box (73) provides a non-floating signal to an associated monitor. The common-mode rejection ratio is drastically improved, so that electrode gel between the reference electrode and the patient, and possibly even the reference electrode itself, may be omitted.
摘要翻译：用于医疗监测的换能器包括：盒（73），其包含浮动部分，非浮动部分和用于将浮动信号转换为非浮动信号的变压器或光耦合器。盒（73）向相关联的监视器提供非浮动信号。共模抑制比大大提高，因此可以省略参考电极和患者之间的电极凝胶，甚至可能省略参考电极本身的电极凝胶。

3. 发明授权

US5170791A Method and apparatus for calculating the fetal heart rate 失效
标题翻译：用于计算胎儿心率的方法和装置
公开(公告)号：US5170791A
公开(公告)日：1992-12-15
申请号：US676886
申请日：1991-03-28
申请人： Andreas Boos , Martin Schraag
发明人： Andreas Boos , Martin Schraag
IPC分类号： A61B8/02 , G01S15/58 , G06F17/00
CPC分类号： G01S15/582 , A61B8/02 , A61B8/0866
摘要： Determining the fetal heart rate comprises irradiating an ultrasound beam in the direction of the fetal heart. The moving parts of the fetal heart cause a Doppler shift which is used to determine the fetal heart rate via an autocorrelation function. Moving parts of the fetal heart with different velocities and Doppler shifts originating from other physiological sources generate secondary maxima in the autocorrelation function, so that an accurate heart rate determination becomes nearly impossible. This problem is overcome by parallel processing of the demodulated ultrasound signal in various pass-bands, for which purpose the signal is fed to filters (28, 30) of different frequency characteristics. The output of the pass band with the better result is used for fetal heart rate circulation.
摘要翻译：确定胎儿心率包括在胎儿心脏的方向照射超声波束。胎心的运动部分引起多普勒频移，用于通过自相关函数确定胎心率。以不同速度运动的心脏心脏部分和源自其他生理源的多普勒频移在自相关函数中产生二次最大值，从而几乎不可能进行准确的心率测定。通过在各种通带中解调的超声信号的并行处理来克服这个问题，为此，信号被馈送到具有不同频率特性的滤波器（28,30）。胎儿心率循环使用带通效果较好的输出。

4. 发明授权

US4984576A Circuitry for heartbeat 失效
标题翻译：心跳电路
公开(公告)号：US4984576A
公开(公告)日：1991-01-15
申请号：US431723
申请日：1989-11-02
申请人： Andreas Schulenberg , Martin Schraag
发明人： Andreas Schulenberg , Martin Schraag
IPC分类号： A61B8/00 , A61B8/02 , G01S7/52 , G01S15/50 , G01S15/66
CPC分类号： A61B8/02 , A61B8/0866 , G01S15/50 , G01S15/66 , G01S7/52026
摘要： A circuit for heartbeat detection derives the heartbeat frquency from ultrasonic signals reflected from the heart and frequency-shifted due to the Doppler effect. The circuit allows for the automatic determination of the distance between the heart and an ultrasonic transducer located on the body of the patient, so that the evaluation of the reflected ultrasonic signals can be limited to a small body range and spurious signals from other ranges can be suppressed. The circuit comprises at least two channels which are enabled by a transmitting/receiving control circuit during receiving intervals for receiving and further processing the reflected ultrasonic signals. The receiving intervals of the different channels are time shifted toward one another so that the respectively received ultrasonic signals originate from different depth ranges within the body. A comparison circuit compares the strengths of the signals corresponding to the heartbeat during each heartbeat period in the individual channels, and thus derives a gradient which indicates the direction in which the receiving intervals or transmit windows are to be shifted during the subsequent heartbeat period in order to localize the heart.
摘要翻译：用于心跳检测的电路从心脏反射的超声波信号中导出心跳频率，并且由于多普勒效应而导致频移。该电路允许自动确定心脏和位于患者体内的超声换能器之间的距离，使得反射的超声波信号的评估可以被限制在较小的身体范围，并且来自其它范围的杂散信号可以是被压制该电路包括至少两个通道，其在接收间隔期间由发送/接收控制电路启用，用于接收和进一步处理反射的超声波信号。不同通道的接收间隔朝向彼此时间偏移，使得分别接收的超声信号源自身体内的不同深度范围。比较电路比较在每个心跳周期期间对应于心跳的信号的强度，并且因此导出一个梯度，其指示接收间隔或发射窗口在随后的心跳周期期间按顺序移位的方向本地化心脏。

5. 发明授权

US4966152A Transducer 失效
公开(公告)号：US4966152A
公开(公告)日：1990-10-30
申请号：US221807
申请日：1988-07-20
申请人： Achim Gang , Martin Schraag , Gunter Blendinger
发明人： Achim Gang , Martin Schraag , Gunter Blendinger
IPC分类号： A61B5/03 , A61B8/02 , G01N29/24
CPC分类号： A61B5/6831 , A61B5/4362 , A61B8/02 , A61B8/0866
摘要： A transducer for extra-uterine monitoring of fetal heart rate and labor activity comprises a casing the lower portion of which carries ultrasound crystals. Additional crystals are carried by a movable base plate which is connected with tension-measuring means.

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