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    • 83. 发明授权
    • Apparatus for determining brain atrophy, method of determining brain atrophy and program for determining brain atrophy
    • 用于确定脑萎缩的装置,确定脑萎缩的方法和用于确定脑萎缩的程序
    • US08112144B2
    • 2012-02-07
    • US12295261
    • 2007-03-29
    • Seiji YamamotoBaigalmaa TsagaanKeiichi Abe
    • Seiji YamamotoBaigalmaa TsagaanKeiichi Abe
    • A61B5/05
    • A61B5/055A61B5/1075G06T7/62G06T2207/10088G06T2207/30016
    • Since cerebral atrophy does not occur only in a specific cross-section and reaches the brain in its entirety or arises prominently in a specific lobe (for example temporal lobe), for the assessment of cerebral atrophy, not only atrophy assessment for the frontal lobe but also an assessment also including atrophy of the temporal lobe, the parietal lobe and the occipital lobe is more desirable. The intracranial volume, the volume of the grey matter and the volume of the white matter are respectively extracted, computed and converted into numbers by image processing from a plurality of MRI slice images and the like. Ratios of these values from the conversions into numbers are taken to calculate the ratio of the grey matter and the ratio of the white matter with respect to the entire brain. Through comparison of a multitude of measurement data obtained by this automated computation, and a case, an objective cerebral atrophy assessment is carried out.
    • 由于脑萎缩不仅在特定的横截面上发生并且完全达到脑,或者在特定的叶(例如颞叶)中突出地出现,以评估脑萎缩,不仅对额叶的萎缩评估,而且 还有一个评估,也包括颞叶萎缩,顶叶和枕叶是更可取的。 通过从多个MRI切片图像等的图像处理,分别提取,计算并计算出颅内体积,灰质体积和白质的体积。 将这些值从转换到数字的比例用于计算灰质与白质相对于整个脑的比例。 通过比较通过这种自动计算获得的大量测量数据和病例,进行目标性脑萎缩评估。
    • 84. 发明申请
    • OPERATION SUPPORTING DEVICE, METHOD, AND PROGRAM
    • 操作支持的设备,方法和程序
    • US20120010498A1
    • 2012-01-12
    • US13076062
    • 2011-03-30
    • Seiji YamamotoSusummu TerakawaToshihisa TakaiKatsuhiro SatoKeiichi AbeBaigalmaa Tsagaan
    • Seiji YamamotoSusummu TerakawaToshihisa TakaiKatsuhiro SatoKeiichi AbeBaigalmaa Tsagaan
    • A61B8/00A61B6/00A61B5/055
    • A61B8/08A61B8/0816A61B8/4416
    • Surgical operation supporting apparatus and method is disclosed in which based on a high-definition tomographic images of an operation site produced before surgery, a three-dimensional model of the operation site is generated, and a surface of the operation site is optically measured during the surgical operation, and further, first position information that represents a three-dimensional position of each of points on the surface is acquired. An unexposed portion of the operation site is measured with ultrasonic waves during the surgical operation, and second position information that represents a three-dimensional position of each of points in the unexposed portion is acquired. Based on the first position information and the second position information, displacement and distortion at a portion whose three-dimensional position is not known in the three-dimensional model is estimated to obtain an estimated result. The three-dimensional model is re-corrected by use of a finite element method and the estimated result.
    • 公开了基于手术前产生的手术部位的高分辨率断层图像的外科手术辅助装置和方法,生成操作部位的三维模型,并且在手术部位的表面被光学测量 并且进一步获取表示表面上的每个点的三维位置的第一位置信息。 在外科手术中用超声波测量操作部位的未曝光部分,并且获取表示未曝光部分中的每个点的三维位置的第二位置信息。 基于第一位置信息和第二位置信息,估计在三维模型中三维位置未知的部分的位移和失真,以获得估计结果。 通过使用有限元法和估计结果重新校正三维模型。
    • 85. 发明授权
    • Projection type image display apparatus
    • 投影型图像显示装置
    • US08029168B2
    • 2011-10-04
    • US11896228
    • 2007-08-30
    • Seiji YamamotoTamami KitaniTaichi Yoshimura
    • Seiji YamamotoTamami KitaniTaichi Yoshimura
    • B60Q3/04
    • G03B21/16F21V29/83G03B5/00G03B21/145G03B21/2026H01J61/52
    • A projection type image display apparatus has a light source unit (11) that includes an arc tube (110) enclosed by a reflector (111) for reflecting the light emitted from the arc tube in one direction through its opening (111a). The opening (111a) of the reflector (111) of the light source unit (11) is covered with a transparent member (112). Formed in one side of the reflector (111), adjacent the opening is an air inlet port (113), while the side facing the air inlet port (113) is closed (i.e. has no port). Formed in the remaining two sides of the reflector (111), and adjacent the opening (111a), are air outlet ports (114) one for each side. This arrangement causes the cooling air to be uniformly circulated in the entire reflector (111) of the light source unit (11) without stagnation to regulate the temperature of the arc tube (110) in an easy and costless manner, and enables installation of the light source unit (11) at any angular position, free of angular limitation.
    • 投影型图像显示装置具有光源单元(11),该光源单元包括由反射器(111)包围的电弧管(110),用于通过其开口(111a)沿一个方向反射从电弧管发射的光。 光源单元(11)的反射器(111)的开口(111a)被透明构件(112)覆盖。 在反射器(111)的一侧形成有与开口相邻的空气入口(113),而面向空气入口(113)的一侧是封闭的(即没有端口)。 在反射器(111)的其余两侧形成并与开口(111a)相邻的是空气出口(114),每侧有一个。 这种布置使得冷却空气在光源单元(11)的整个反射器(111)中均匀地循环而没有停滞,以容易且无成本的方式调节电弧管(110)的温度,并且能够安装 光源单元(11)处于任何角度位置,没有角度限制。
    • 86. 发明申请
    • SURGERY ASSISTANCE SYSTEM
    • 手术辅助系统
    • US20110125006A1
    • 2011-05-26
    • US12933232
    • 2009-03-17
    • Seiji YamamotoToshihisa TakaiEtsukazu HayashimotoMasaaki KinparaAkira Miura
    • Seiji YamamotoToshihisa TakaiEtsukazu HayashimotoMasaaki KinparaAkira Miura
    • A61B6/03
    • A61B19/5244A61B1/0057A61B5/06A61B5/064A61B5/103A61B34/20A61B2017/00725A61B2034/107A61B2034/2055G06F19/00
    • Even when the optical axis is offset in a rigid endoscope, the actual optical axis position is measured in advance, and surgery navigation can be performed by using the actual optical axis position.A surgery assistance system comprising 3-dimensional shape measurement means for measuring a 3-dimensional surface shape of a patient; and a rigid endoscope (11) to be inserted into the body of the patient; wherein the rigid endoscope has a position-orientation detection marker (12) measurable by the 3-dimensional shape measurement means; 3-dimensional tomographical data of the patient imaged in advance and a position relationship relating to the actual optical axis position of the rigid endoscope measured in advance are stored in the computation means; 3-dimensional tomographical data and the 3-dimensional surface shape of the patient measured by the 3-dimensional shape measurement means are aligned; the position, orientation, and optical axis of the rigid endoscope are computed on the basis of the position-orientation detection marker measured by the 3-dimensional shape measurement means and the stored actual optical axis position of the rigid endoscope; and the aligned 3-dimensional tomographical data, the optical axis of the rigid endoscope, and the intersection of the optical axis and the tissue wall are displayed.
    • 即使在刚性内窥镜中的光轴偏移的情况下,也可以预先测定实际的光轴位置,也可以通过实际的光轴位置进行手术导航。 一种手术辅助系统,包括用于测量患者的三维表面形状的三维形状测量装置; 以及插入患者体内的刚性内窥镜(11) 其中所述刚性内窥镜具有可由所述三维形状测量装置测量的位置取向检测标记(12); 预先拍摄的患者的3维断层数据和与预先测量的刚性内窥镜的实际光轴位置有关的位置关系存储在计算装置中; 三维断层数据和由三维形状测量装置测量的患者的三维表面形状对齐; 基于由三维形状测量装置测量的位置取向检测标记和刚性内窥镜的存储的实际光轴位置来计算刚性内窥镜的位置,方位和光轴; 并且显示对准的三维断层数据,刚性内窥镜的光轴以及光轴和组织壁的交点。
    • 87. 发明申请
    • Sensor-equipped rolling bearing apparatus
    • 带传感器的滚动轴承装置
    • US20080008410A1
    • 2008-01-10
    • US11822724
    • 2007-07-09
    • Ken AdachiTetsuya IshikawaSeiji YamamotoChangxin Yu
    • Ken AdachiTetsuya IshikawaSeiji YamamotoChangxin Yu
    • F16C41/04
    • G01P3/446F16C19/386F16C33/583F16C41/007F16C2326/02G01P3/443
    • A sensor-equipped rolling bearing apparatus includes a hub spindle, an outer ring concentrically disposed around an outer periphery of the hub spindle, first and second inner rings fitted on the hub spindle to rotate together with the hub spindle, with ends of their smaller rib portions opposed to each other, two rows of tapered rollers disposed respectively between the outer ring and the first inner ring and between the outer ring and the second inner ring, and a sensor for detecting a rotating state of the hub spindle 11. A cylindrical portion is formed integrally at an end of the smaller rib portion of the first inner ring, and extends toward the end of the smaller rib portion of the second inner ring in an axial direction. A detection portion for enabling the sensor to detect the rotating state is formed on an outer peripheral surface of the cylindrical portion.
    • 具有传感器的滚动轴承装置包括轮毂心轴,围绕轮毂心轴的外圆周同心地设置的外圈,安装在轮毂心轴上的第一和第二内圈,与轮毂心轴一起旋转,其较小肋的端部 彼此相对的部分,分别设置在外圈和第一内圈之间以及外圈和第二内圈之间的两排锥形滚子以及用于检测轮毂心轴11的旋转状态的传感器。 圆筒部一体地形成在第一内圈的较小肋部的端部,并且沿轴向朝向第二内圈的较小肋部的端部延伸。 在圆筒部的外周面形成有使传感器能够检测旋转状态的检测部。
    • 90. 发明申请
    • Throttle valve
    • 节流阀
    • US20060016426A1
    • 2006-01-26
    • US11183736
    • 2005-07-19
    • Seiji YamamotoMineyasu Oana
    • Seiji YamamotoMineyasu Oana
    • F02B31/00F02D9/10
    • F02D9/101F02D9/102Y02T10/146
    • A throttle valve for adjusting an amount of intake air to an internal combustion engine includes throttle shafts disposed in an intake air passage perpendicularly across the longitudinal axis of the air passage, and first and second valve members mounted on the throttle shafts for opening/closing about the throttle shafts independently of each other. By these first and second valve members, there are formed main air passages for causing air to flow in the intake air passage along the longitudinal axis of the intake air passage toward the internal combustion engine and auxiliary intake air passages for causing air to flow in the intake air passage substantially perpendicularly across the longitudinal axis of the air passage.
    • 用于调节内燃机的进气量的节流阀包括设置在进气通道中的节流轴,垂直于空气通道的纵向轴线,以及安装在节流轴上的第一和第二阀构件,用于打开/关闭约 油门轴彼此独立。 通过这些第一和第二阀构件,形成有主空气通道,用于使空气沿着进气通道的纵向轴线朝向内燃机在进气通道中流动,并且辅助进气通道用于使空气在 进气通道基本上垂直于空气通道的纵向轴线。