公开(公告)号：US4861154A

公开(公告)日：1989-08-29

申请号：US893758

申请日：1986-08-06

申请人： Gary W. Sherwin ,  Albert L. Schmidt ,  Lewis F. Hanes

发明人： Gary W. Sherwin ,  Albert L. Schmidt ,  Lewis F. Hanes

IPC分类号： A61B3/02 ,  A61B3/06 ,  A61B3/10 ,  A61B5/0476 ,  A61B5/0484 ,  A61B5/0496

CPC分类号： A61B3/0325 ,  A61B3/02 ,  A61B5/0484 ,  A61B5/0496

摘要： An automated visual testing system is disclosed which presents an alternating steady state visual stimulus to a patient through an optical system that modifies the stimulus image. As the image changes, the patient produces evoked potentials that change. The evoked potentials are detected by a product detector which produces the amplitude of the evoked potentials. The amplitude is monitored through an analog to digital converter by a supervisor computer. The supervisor computer produces patient response curves from which it diagnoses visual system malfunction and/or prescribes correction. A control processor controls a stimulus generator to produce the image and an optical system, that includes polarizers, an astigmatism test slit or a cylindrical lense, a zoom lense system and a variable focal length test lense, transmits the image to the patient. The steady state visual potential stimulus generator is a device by which a rapidly complementing or flashing pattern can be presented to the patient. The generator allows the contrast of the image to be varied without varying luminance and allows operation in a true bicolor and multicolor mode. The product detector detects the level of the steady state evoked potential signals even in the presence of substantial background noise and extraneous electroencephalographic signals. These detectors can be used to monitor the evoked potential produced by visual, all or somatic steady state stimuli. The components described above can be used to produce a system that can determine to which of several different displays an observer is paying attention by providing images that blink at different frequencies and product detectors for each of the stimulus frequencies. The product detector producing the highest output indicates the display upon which the observer is focused.

摘要翻译： 公开了一种自动视觉测试系统，其通过修改刺激图像的光学系统向患者呈现交替的稳态视觉刺激。 随着图像的变化，患者产生变化的诱发电位。 诱发电位由产生检测器的产生检测电位的振幅。 通过管理计算机通过模数转换器监测振幅。 主管计算机产生患者反应曲线，从中诊断视觉系统故障和/或规定矫正。 控制处理器控制刺激发生器以产生图像，并且包括偏振器，散光测试狭缝或圆柱形透镜，变焦镜系统和可变焦距测试透镜的光学系统将图像传输到患者。 稳态视觉刺激发生器是通过该装置可以向病人呈现快速补充或闪烁的模式。 发生器允许图像的对比度变化而不改变亮度，并允许以真正的双色和多色模式进行操作。 即使在存在大量背景噪声和外部脑电信号的情况下，产品检测器也能检测稳态诱发电位信号的电平。 这些检测器可用于监测由视觉，全身或体细胞稳态刺激产生的诱发电位。 上述组件可以用于产生一种系统，该系统可以通过提供在不同频率闪烁的图像和针对每个刺激频率的产品检测器来确定观察者注意的几个不同显示中的哪一个。 产生最高输出的产品检测器指示观察者聚焦的显示。

公开(公告)号：US5243517A

公开(公告)日：1993-09-07

申请号：US228136

申请日：1988-08-03

申请人： Albert L. Schmidt ,  Ellen K. McKinley ,  Gary W. Sherwin ,  Lewis F. Hanes

发明人： Albert L. Schmidt ,  Ellen K. McKinley ,  Gary W. Sherwin ,  Lewis F. Hanes

IPC分类号： A61B5/0484 ,  G06F17/00

CPC分类号： A61B5/0484

摘要： The present invention uses a personal computer 180 with an A/D converter 184 and a hard disk drive 182 to record the electroencephalographic (EEG) activity of a subject 192 during a commercial and to record event related potentials (ERP) during commercial evaluation sequences subsequent to the commercial. The EEG is analyzed by a signal processing computer 205 for alpha and beta frequency amplitude content to determine attention cognition of the commercial. Different commercials for the same product are compared using overall attention and cognition ratings. The ERP is analyzed to determine the amplitude and latency of the ERPs potentials produced by stimulus events in the evaluation sequences. The ERPs are filtered and the peak amplitudes and latency measured. The amplitude and/or latency determines the understanding of the commercial, the value of the product, the intent to buy the product and the memory of the product. By computing overall results for each commercial different commercials can be compared. The effectiveness the commercial can be compared to a reference product and a well known local price providing additional information concerning the product to the advertiser.

摘要翻译： 本发明使用具有A / D转换器184和硬盘驱动器182的个人计算机180来在商业广告期间记录对象192的脑电图（EEG）活动，并在随后的商业评估序列期间记录事件相关电位（ERP） 到商业。 EEG由信号处理计算机205分析用于α和β频率振幅内容以确定商业的注意认知。 使用整体关注度和认知评级来比较同一产品的不同广告。 分析ERP以确定评估序列中刺激事件产生的ERPs潜能的幅度和潜伏期。 滤除ERP并测量峰值振幅和延迟。 幅度和/或等待时间决定了对商品的了解，产品的价值，购买产品的意图以及产品的记忆。 通过计算每个商业广告的整体结果可以比较。 商业可以与参考产品和众所周知的当地价格进行比较的有效性，向广告商提供有关产品的附加信息。

公开(公告)号：US4953968A

公开(公告)日：1990-09-04

申请号：US327046

申请日：1989-03-22

申请人： Gary W. Sherwin ,  Lewis F. Hanes ,  Albert L. Schmidt

发明人： Gary W. Sherwin ,  Lewis F. Hanes ,  Albert L. Schmidt

IPC分类号： A61B3/02 ,  A61B5/0484 ,  A61B5/0496

CPC分类号： A61B3/0325 ,  A61B3/02 ,  A61B5/0484 ,  A61B5/0496

摘要： An automated visual testing system is disclosed which presents an alternating steady state visual stimulus to a patient through an optical system that modifies the stimulus image. As the image changes, the patient produces evoked potentials that change. The evoked potentials are detected by a product detector which produces the amplitude of the evoked potentials. The amplitude is monitored through an analog to digital converter by a supervisor computer. The supervisor computer produces patient response curves from which it diagnoses visual system malfunction and/or prescribes correction. A control processor controls a stimulus generator to produce the image and an optical system, that includes polarizers, an astigmatism test slit or a cylindrical lens, a zoom lens system and a variable focal length test lens, transmits the image to the patient. The steady state visual potential stimulus generator is a device by which a rapidly complementing or flashing pattern can be presented to the patient. The generator allows the contrast of the image to be varied without varying luminance and allows operation in a true bicolor and multicolor mode. The product detector detects the level of the steady state evoked potential signals even in the presence of substantial background noise and extraneous electroencephalographic signals. These detectors can be used to monitor the evoked potential produced by visual, all or somatic steady state stimuli.

摘要翻译： 公开了一种自动视觉测试系统，其通过修改刺激图像的光学系统向患者呈现交替的稳态视觉刺激。 随着图像的变化，患者产生变化的诱发电位。 诱发电位由产生检测器的产生检测电位的振幅。 通过管理计算机通过模数转换器监测振幅。 主管计算机产生患者反应曲线，从中诊断视觉系统故障和/或规定矫正。 控制处理器控制刺激发生器以产生图像，并且包括偏振器，散光测试狭缝或柱面透镜，变焦透镜系统和可变焦距测试透镜的光学系统将图像发送到患者。 稳态视觉刺激发生器是通过该装置可以向病人呈现快速补充或闪烁的模式。 发生器允许图像的对比度变化而不改变亮度，并允许以真正的双色和多色模式进行操作。 即使在存在大量背景噪声和外部脑电信号的情况下，产品检测器也能检测稳态诱发电位信号的电平。 这些检测器可用于监测由视觉，全身或体细胞稳态刺激产生的诱发电位。

公开(公告)号：US4770180A

公开(公告)日：1988-09-13

申请号：US24203

申请日：1987-03-10

申请人： Albert L. Schmidt ,  Gary W. Sherwin ,  Kenneth K. Blackham ,  John L. Johnson

发明人： Albert L. Schmidt ,  Gary W. Sherwin ,  Kenneth K. Blackham ,  John L. Johnson

IPC分类号： A61B5/0478 ,  A61B5/04

CPC分类号： A61B5/0478

摘要： The present invention includes an adjustable head set held in place on the back of a patient's head when the patient leans back against a chair head rest. The head set includes self-preparing disposable monitors that provide good contact with the patient's head without prior skin preparation. The monitors include a conductive tube containing conductive wires, the tips of which form a planar cushion surface for contacting thr patient's head through a caratinaceous layer of skin. The monitors are held in adjustable holders that allow the contact force to be adjusted. The adjustable holders are mounted in holder slots of head set springs where the slots also allow adjustment of the placement of the monitors. The springs can include hinges for rotatably adjusting placement of the monitors. The disposable monitors are filled with an electrolyte solution using a disposable applicator including a puncturable film, punctured by a monitor when the electrolyte solution is being applied.

摘要翻译： 本发明包括当患者靠在椅子头枕上时靠在患者头部的背部时保持在适当位置的可调节头部组件。 头套包括自制一次性显示器，与患者的头部良好接触，无需事先进行皮肤准备。 监视器包括一个导电管，其中导电管包含导电线，其顶端形成一个平面的缓冲表面，用于使病人的头部穿过皮肤层。 显示器保持在可调节的支架中，允许调节接触力。 可调节的保持器安装在头部固定弹簧的保持器槽中，其中槽还允许调节显示器的位置。 弹簧可以包括用于可旋转地调节显示器的放置的铰链。 一次性显示器使用包括可刺穿膜的一次性敷料填充电解质溶液，当施加电解质溶液时由监护仪刺穿。

公开(公告)号：US4706679A

公开(公告)日：1987-11-17

申请号：US822725

申请日：1986-01-27

申请人： Albert L. Schmidt ,  Gary W. Sherwin ,  Kenneth K. Blackham ,  John L. Johnson

发明人： Albert L. Schmidt ,  Gary W. Sherwin ,  Kenneth K. Blackham ,  John L. Johnson

IPC分类号： A61B5/0408 ,  A61B5/0478 ,  A61B5/04

CPC分类号： A61B5/0478

摘要： The present invention includes an adjustable head set held in place on the back of a patient's head when the patient leans back against a chair head rest. The head set includes self-preparing disposable monitors that provide good contact with the patient's head without prior skin preparation. The monitors include a conductive tube containing conductive wires, the tips of which form a planar cushion surface for contacting the patient's head through a caratinaceous layer of skin. The monitors are held in adjustable holders that allow the contact force to be adjusted. The adjustable holders are mounted in holder slots of head set springs where the slots also allow adjustment of the placement of the monitors. The springs can include hinges for rotatably adjusting placement of the monitors. The disposable monitors are filled with an electrolyte solution using a disposable applicator including a puncturable film, punctured by a monitor when the electrolyte solution is being applied.

摘要翻译： 本发明包括当患者靠在椅子头枕上时靠在患者头部的背部时保持在适当位置的可调节头部组件。 头套包括自制一次性显示器，与患者的头部良好接触，无需事先进行皮肤准备。 监视器包括一个导电管，其中包含导电线，其顶端形成一个平面的缓冲表面，用于使患者的头部通过皮质层的接触层接触。 显示器保持在可调节的支架中，允许调节接触力。 可调节的保持器安装在头部固定弹簧的保持器槽中，其中槽还允许调节显示器的位置。 弹簧可以包括用于可旋转地调节显示器的放置的铰链。 一次性显示器使用包括可刺穿膜的一次性敷料填充电解质溶液，当施加电解质溶液时由监护仪刺穿。

公开(公告)号：US4995392A

公开(公告)日：1991-02-26

申请号：US290390

申请日：1988-12-29

申请人： Gary W. Sherwin ,  Edward E. Kovach ,  Albert L. Schmidt

发明人： Gary W. Sherwin ,  Edward E. Kovach ,  Albert L. Schmidt

IPC分类号： A46D3/04 ,  A46B3/22 ,  A61B5/0402 ,  A61B5/0408

CPC分类号： A61B5/04025

摘要： A self-preparing electrode includes a conductive conical disk and a nonconductive plastic abrading brush removably interfitted through an aperture in the disk. The brush extends axially through the disk cavity to an abrading end of the brush disposed beyond the cavity at the large diameter end of the disk. The brush also extends axially through and beyong the aperture of the disk to a fused end of the brush which holds the strands or bristles of the brush together. An apparatus which fabricates the brush and assembles it to an electrode disk uses a pair of pressure roller to feed multiple strands from supply spools mounted in a supply rack, through input and output tubular orifices, to and through the aperture of the disk. A shuttle positions a fusing anvil in contact with the leading ends of the strands extending through the disk aperture for fusing them into a connecting bead. A cutting blade is then employed to sever the strands a short distance from the disk to finish forming the brush and define an abrading end thereon.

公开(公告)号：US4678865A

公开(公告)日：1987-07-07

申请号：US727060

申请日：1985-04-25

申请人： Gary W. Sherwin

发明人： Gary W. Sherwin

IPC分类号： A61B5/0408 ,  A61B5/0428 ,  A61B5/0478 ,  A61B5/0492 ,  H01B11/18

CPC分类号： A61B5/04286 ,  A61B5/0478

摘要： A low noise EEG probe wiring system that substantially eliminates noise picked up by the loop enclosed by the cables of the wiring system, electrostatic and magnetic noise, and noise due to triboelectric effects. The low noise EEG probe wiring system comprises a pair of coaxial cables each including a central connector, a graphite coated insulating layer positioned around the central conductor, a first braid shield positioned around the graphite coated insulating layer and along the length of the coaxial cable, and a first insulator layer positioned around the first braid shield and along the length of the coaxial cables. The coaxial cables are positioned in contact with each other along a first portion of the length of the cables; a second braid shield positioned around the pair of coaxial cables and along the first portion of the length of cables and around each one of the cables along the remaining portion of the length of the cables and being connected to the first braid shield; and a second insulator layer positioned around the second braid shield.

摘要翻译： 低噪声EEG探头接线系统，可以基本上消除由布线系统的电缆包围的环路拾取的噪声，静电和磁性噪声以及由摩擦电影响引起的噪音。 低噪声EEG探针接线系统包括一对同轴电缆，每个同轴电缆包括中心连接器，围绕中心导体定位的石墨涂覆的绝缘层，围绕石墨涂覆的绝缘层定位并沿着同轴电缆的长度的第一编织屏蔽， 以及围绕第一编织屏蔽并且沿着同轴电缆的长度定位的第一绝缘体层。 同轴电缆沿电缆长度的第一部分彼此接触定位; 第二编织屏蔽件围绕所述一对同轴电缆并沿着所述电缆长度的第一部分围绕所述电缆的所述长度的剩余部分围绕所述电缆的每一个并且连接到所述第一编织屏蔽; 以及围绕第二编织屏蔽定位的第二绝缘体层。

公开(公告)号：US4640290A

公开(公告)日：1987-02-03

申请号：US727058

申请日：1985-04-25

申请人： Gary W. Sherwin

发明人： Gary W. Sherwin

IPC分类号： A61B5/0408 ,  A61B5/0478 ,  A61B5/04

CPC分类号： A61B5/0478

摘要： A self-preparing electrode, suitable for EEG mapping, includes a metallic cylinder separated by a dielectric cylinder from a socket for a probe assembly. The probe assembly is preferably a tulip probe removably held by the socket which is connectable to an inner conductor of a coaxial cable. The metallic cylinder includes a cavity into which the tip of the tulip probe is partially depressed when the probe assembly and shell are placed on the skin of a patient. The tip of the tulip probe has multiple points which penetrate the dead skin layer and make electrical contact with the blood-rich skin layer of the patient. The electrode is held in place by straps attached to the shell of the electrode.

摘要翻译： 适用于脑电图的自制电极包括一个金属圆柱体，由介质圆柱体与探头组件的插座隔开。 探针组件优选地是可移除地由插座固定的郁金香探针，其可连接到同轴电缆的内部导体。 当探针组件和壳体放置在患者的皮肤上时，金属圆柱体包括腔体，其中郁金香探针的尖端部分地被压入其中。 郁金香探针的尖端具有穿透死皮层的多个点，并与患者的血液丰富的皮肤层电接触。 电极通过连接到电极壳的带固定在适当的位置。

公开(公告)号：US4709702A

公开(公告)日：1987-12-01

申请号：US727031

申请日：1985-04-25

申请人： Gary W. Sherwin

发明人： Gary W. Sherwin

IPC分类号： A61B5/0408 ,  A61B5/0478 ,  A61B5/04

CPC分类号： A61B5/0478

摘要： An electroencephalographic (EEG) cap for a human head for use in an evoked potential autorefractometry system which includes an adjustable headband having relatively rigid straps crossing over EEG measurement regions. Inserted through the straps are self-preparing electrodes which are connected to shielded cables. The self-preparing electrodes penetrate a dead skin layer without causing bleeding during positioning of the cap and do not require a previously prepared electrode positioning site. An electrolyte solution can be applied to the electrodes and the regions for measurement after the cap is in position by an electrolyte solution pump system. The entire cap can be shielded by a metal shield dome and held in place by a chin strap.

摘要翻译： 用于人体头部的脑电图（EEG）帽，用于诱发电位自动折射测量系统，其包括具有穿过EEG测量区域的相对刚性带的可调节头带。 通过带子插入是与屏蔽电缆连接的自制电极。 自制电极穿透死皮层而不会在盖定位期间引起渗血，并且不需要预先准备好的电极定位位置。 电解质溶液可以通过电解质溶液泵系统在盖子就位之后施加到电极和测量区域。 整个盖子可以被金属屏蔽罩屏蔽，并通过下巴带固定到位。

公开(公告)号：US4679002A

公开(公告)日：1987-07-07

申请号：US727056

申请日：1985-04-25

申请人： Gary W. Sherwin ,  John M. Zomp

发明人： Gary W. Sherwin ,  John M. Zomp

IPC分类号： H03H11/12 ,  A61B5/0476 ,  H03F3/195 ,  H03F3/45 ,  H03H11/04 ,  H03F1/00 ,  A61B5/04

CPC分类号： H03F3/195 ,  H03F3/45475 ,  H03F3/45991 ,  H03F2203/45552 ,  H03F2203/45568

摘要： A low noise, high gain differential amplifier suitable for EEG amplification is constructed in a shielded metal enclosure, preferably on a ground plane circuit board. The amplifier is battery powered to eliminate all possibility of noise from the power system. The amplifier utilizes a pair of operational amplifiers to provide high input impedance for each of two input signals. A differential amplifier generates an internal signal which is filtered and amplified by a pair of bandpass amplifiers and overlapping low pass and high pass amplifiers.

摘要翻译： 适用于EEG放大的低噪声，高增益差分放大器构造在屏蔽金属外壳中，最好在接地平面电路板上。 放大器是电池供电的，以消除电力系统的所有可能的噪音。 放大器利用一对运算放大器为两个输入信号中的每一个提供高输入阻抗。 差分放大器产生一个内部信号，由一对带通放大器和重叠的低通和高通放大器进行滤波和放大。