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1. 发明授权

US5103825A Doppler transducer probe with direction indicator 失效
标题翻译：多普勒探头带方向指示器
公开(公告)号：US5103825A
公开(公告)日：1992-04-14
申请号：US664693
申请日：1991-03-05
申请人： D. Eugene Hokanson , Roger C. Nelson
发明人： D. Eugene Hokanson , Roger C. Nelson
IPC分类号： A61B8/06 , G01S7/52 , G01S7/521 , G01S15/50
CPC分类号： G01S7/52079 , A61B8/06 , G01S15/50 , G01S7/52076
摘要： Current-responsive light-emitting diodes of different colors are provided adjacent to the tip of the hand-held transducer probe of a medical Doppler device. Mechanism is provided to actuate the diodes of one color when the direction of internal body matter detected by the Doppler device is toward the probe and to actuate lights of a different color when the direction of detected internal body matter is away from the probe. In addition, power supply to the diodes is controlled so that increasing brightness indicates increasing velocity of the detected internal body matter.
摘要翻译：设置与医疗多普勒装置的手持式换能器探头的尖端相邻的不同颜色的电流响应型发光二极管。当检测到的内部物体的方向远离探头时，当由多普勒装置检测到的内部物体的方向朝向探头并且致动不同颜色的光时，提供机构来致动一种颜色的二极管。此外，控制对二极管的电源，使得增加的亮度表示检测到的内部物质的速度增加。

2. 发明授权

US4532933A Focusing mechanism for an ultrasound device 失效
标题翻译：超声波装置的聚焦机构
公开(公告)号：US4532933A
公开(公告)日：1985-08-06
申请号：US487934
申请日：1983-04-25
申请人： D. Eugene Hokanson
发明人： D. Eugene Hokanson
IPC分类号： A61B8/06 , G10K11/30 , A61B10/00
CPC分类号： G10K11/30 , A61B8/06
摘要： Side-by-side transmitting and receiving transducers of a medical Doppler ultrasound device are covered by a converging lens of synthetic rubber material through which the speed of ultrasound waves is slower than the speed of the waves in soft body tissue. The lens has a planar inner face butted against the planar transmitting and receiving faces of the transducers and a convexly curved outer face including two portions each extending over both transducers, one of such portions being smaller and more sharply curved than the other. The composite lens focuses the transmitted ultrasound waves in two zones overlapping in range so that the same transducer arrangement can be used in obtaining velocity information from deep or shallow blood vessels.
摘要翻译：医用多普勒超声装置的并列发送和接收换能器由合成橡胶材料的会聚透镜覆盖，超声波的速度比软体组织中的波速慢。透镜具有与传感器的平面发射和接收面相对的平面内表面，以及包括两个部分的凸起弯曲外表面，每个部分均在两个换能器上延伸，这些部分中的一个比另一个更小并且更尖锐地弯曲。复合透镜将发射的超声波聚焦在两个范围内重叠的区域，使得相同的换能器布置可用于从深或浅的血管获得速度信息。

3. 发明授权

US4739772A Brain wave monitoring mechanism and method 失效
标题翻译：脑波监测机制及方法
公开(公告)号：US4739772A
公开(公告)日：1988-04-26
申请号：US462732
申请日：1983-02-01
申请人： D. Eugene Hokanson , William M. Blackshear, Jr.
发明人： D. Eugene Hokanson , William M. Blackshear, Jr.
IPC分类号： A61B5/0476 , A61B5/04
CPC分类号： A61B5/0476
摘要： During a surgical operation, a conventional electroencephalograph provides several analog electrical signals of the brain waves of the patient, each signal indicating voltage fluctuations detected at a different area of the patient's scalp. The analog signals are converted to digital form for input to a multipurpose computer. The computer is programmed to produce respective reference traces on a video monitor indicating the voltage fluctuations detected during a preceding reference period. While the reference traces continue to be displayed, more current traces are produced on the video monitor in juxtaposed relationship to the reference traces. The current traces indicate the voltage fluctuations detected during the period immediately preceding their display. The current traces are replaced periodically with new current traces indicating more recent information. Any significant change in the patient's brain waves is detected by comparing the current traces with the reference traces. At predetermined times, the most recent current traces are recorded by encoding the corresponding digital signals on a disk. Later, the traces can be reproduced on the video monitor for postoperative evaluation.
摘要翻译：在外科手术中，传统的脑电图提供了患者脑波的几个模拟电信号，每个信号指示在患者头皮的不同区域检测到的电压波动。模拟信号转换为数字形式，以输入到多用途计算机。计算机被编程为在视频监视器上产生指示在前一参考周期期间检测到的电压波动的相应参考迹线。当参考轨迹继续显示时，视频监视器上将产生与参考轨迹并置关系的更多当前轨迹。电流迹线表示在其显示之前的一段时间内检测到的电压波动。周期性地更新当前迹线，显示更新的信息的新的当前迹线。通过将电流迹线与参考轨迹进行比较来检测患者脑电波的任何重大变化。在预定时间，通过在磁盘上对相应的数字信号进行编码来记录最新的电流迹线。后来可以在视频监控器上再现痕迹，进行术后评估。

4. 发明授权

US4556067A Bandwidth indicator for Doppler blood flowmeters 失效
标题翻译：多普勒血流量计带宽指标
公开(公告)号：US4556067A
公开(公告)日：1985-12-03
申请号：US569681
申请日：1984-01-10
申请人： D. Eugene Hokanson , Dennis C. Arneson
发明人： D. Eugene Hokanson , Dennis C. Arneson
IPC分类号： G01S15/58 , G01S15/89 , A61B10/00
CPC分类号： G01S15/8979 , G01S15/582
摘要： The analog broadband output signal of a medical Doppler device is sampled at a constant rate to convert the signal to digital form. The sample values are stored consecutively in a random access memory component. Such values are recalled from such component at a readout rate different from the sampling rate so as to create a frequency-shifted intermediate broadband signal corresponding to the Doppler output signal. Such intermediate signal is filtered and the power of the filtered intermediate signal is continuously compared to the power of the unfiltered intermediate signal. The readout rate from the memory component is adjusted to maintain approximately the same proportionate relationship of the power of the filtered intermediate signal to the power of the unfiltered intermediate signal. The continuously adjusted readout rate from the memory component indicates a "band edge" frequency above or below which a preselected proportion of the total power of the Doppler signal resides.
摘要翻译：以恒定速率对医用多普勒装置的模拟宽带输出信号进行采样，以将信号转换为数字形式。样本值连续存储在随机存取存储器组件中。这样的值以与采样率不同的读出速率从这样的组件调用，以便产生对应于多普勒输出信号的频移中间宽带信号。对这样的中间信号进行滤波，并且将滤波后的中间信号的功率与未滤波的中间信号的功率连续地进行比较。调整来自存储器组件的读出速率，以保持滤波后的中间信号的功率与未滤波的中间信号的功率大致相同的成比例的关系。来自存储器组件的连续调整的读出速率指示高于或低于多普勒信号的总功率的预选比例的“频带边缘”频率。

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