专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2014176515A X-ray ct apparatus 有权
标题翻译： X射线CT装置
公开(公告)号：JP2014176515A
公开(公告)日：2014-09-25
申请号：JP2013052560
申请日：2013-03-14
申请人： Toshiba Corp , 株式会社東芝 , Toshiba Medical Systems Corp , 東芝メディカルシステムズ株式会社
发明人： SHIBATA MARIKO , AOKI KUNIO , NANBU KYOJIRO , SAKURAI YASUO , HASHIMOTO KEISUKE , TATSUZAKI HISASHI
IPC分类号： A61B6/03 , A61B6/06
摘要： PROBLEM TO BE SOLVED: To provide an X-ray CT apparatus capable of reducing radiation dose for an analyte and an operator by displaying an image showing a puncture needle on the analyte and a peripheral tissue around the needle.SOLUTION: The X-ray CT apparatus includes a projection unit, a data processing unit, a display control unit, a first area setting unit, a second area setting unit and a system control unit. The projection unit irradiates an analyte with X-rays and detects X-rays passing through the analyte. The data processing unit receives an output of the projection unit and generates image data showing a three-dimensional area. The display control unit causes a display unit to display an image based on the image data. The first area setting unit sets a first area which is an area including a preset puncture route. The second area setting unit sets a second area which is an area including the tip of a puncture needle on the basis of the image data during puncturing. The system control unit controls the projection unit to decrease the intensity of X-rays radiated to at least an area in the first area excluding the second area.
摘要翻译：要解决的问题：提供能够通过在分析物上显示穿刺针的图像和针周围的周围组织来提供能够减少分析物和操作者的辐射剂量的X射线CT装置。解决方案：X射线CT 装置包括投影单元，数据处理单元，显示控制单元，第一区域设置单元，第二区域设置单元和系统控制单元。投影单元用X射线照射分析物并检测通过分析物的X射线。数据处理单元接收投影单元的输出并生成显示三维区域的图像数据。显示控制单元使显示单元基于图像数据显示图像。第一区域设置单元设置作为包括预设穿刺路线的区域的第一区域。第二区域设定单元根据穿刺时的图像数据，设定作为穿刺针的前端的区域的第二区域。系统控制单元控制投影单元以降低辐射到除了第二区域之外的第一区域中的至少一个区域的X射线的强度。

2. 发明专利

JP2008245284A Parameter adjusting method and apparatus for x-ray plane detector, and x-ray diagnosis device 有权
标题翻译： X射线平板检测器的参数调整方法和装置以及X射线诊断装置
公开(公告)号：JP2008245284A
公开(公告)日：2008-10-09
申请号：JP2008076711
申请日：2008-03-24
申请人： Toshiba Corp , 株式会社東芝
发明人： AOKI KUNIO , TAKAHASHI AKIHITO
IPC分类号： H04N5/32 , A61B6/00 , G03B42/02 , H04N5/335 , H04N5/365 , H04N5/367
摘要： PROBLEM TO BE SOLVED: To recognize a defect point in an X-ray image and to automatically obtain position information of the defect point.
SOLUTION: When adjusting operation parameters including capacitance values of integration amplifiers amplifying charges read from an X-ray plane detector and gains of amplifiers amplifying output of the integration amplifiers, a pixel value which is output from the X-ray plane detector under exposure with X-rays, is compared with a reference level range of expected values. On the basis of a result of the comparison, the operation parameters are automatically determined within the reference level range of expected values and after the determination of the operation parameters, an offset correction coefficient for correcting an offset component of the X-ray plane detector is automatically set. After the offset correction coefficient is completely set, a gain correction coefficient is automatically set so as to provide the pixel value to be output from the X-ray plane detector. After the gain correction coefficient is completely set, X-ray images output from the X-ray plane detector under exposure with X-rays are collected to apply offset correction processing and gain correction processing thereto, a defect point is recognized in these corrected X-ray images, and position information of the defect point is automatically obtained.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：识别X射线图像中的缺陷点并自动获取缺陷点的位置信息。
解决方案：调整运算参数，包括放大从X射线平面检测器读取的电荷的积分放大器的电容值和积分放大器放大器的放大倍数，从X射线平面检测器输出的像素值用X射线照射，与预期值的参考水平范围进行比较。基于比较的结果，在期望值的参考水平范围内自动确定操作参数，并且在确定操作参数之后，用于校正X射线平面检测器的偏移分量的偏移校正系数为自动设置在偏移校正系数完全设定之后，自动设定增益校正系数，以提供要从X射线平面检测器输出的像素值。在增益校正系数完全设定之后，收集由X射线曝光的X射线平面检测器输出的X射线图像，对其进行偏移校正处理和增益校正处理，在这些校正的X射线自动获得缺陷点的位置信息。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2008220965A Parameter fitting method and apparatus of x-ray planar detector and apparatus, x-ray diagnostic apparatus 有权
标题翻译： X射线平面检测器和装置的X射线诊断装置的参数配准方法和装置
公开(公告)号：JP2008220965A
公开(公告)日：2008-09-25
申请号：JP2008076712
申请日：2008-03-24
申请人： Toshiba Corp , 株式会社東芝
发明人： AOKI KUNIO , TAKAHASHI AKIHITO
IPC分类号： A61B6/00 , G01T1/20 , G01T1/24 , H04N5/32 , H04N5/335 , H04N5/367 , H04N5/374
摘要： PROBLEM TO BE SOLVED: To provide apparatus which assesses the life of an X-ray planar detector automatically from the temporal transition of temporal transition data of information of the fitting time of an action parameter and such an action parameter.
SOLUTION: When adjusting each capacity value of each integral amplifier to amplify each electrical charge which is retrieved from an X-ray planar detector and action parameter which has the gain of each amplifier to amplify output power of each integral amplifier, a pixel value which is outputted from the X-ray planar detector when an X ray is exposed and the reference level range of expected value are compared, the action parameter is determined automatically within the reference level range of the expected value from this comparison result, this determined action parameter and information of the fitting time of such an action parameter are accumulated as temporal transition data, and the life of the X-ray planar detector is assessed automatically from the temporal transition of this temporal transition data.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供从动作参数的拟合时间的信息的时间转换数据的时间转换和这种动作参数自动地评估X射线平面检测器的寿命的装置。解决方案：当调整每个积分放大器的每个容量值以放大从X射线平面检测器检索的每个电荷和具有每个放大器的增益放大每个积分放大器的输出功率的动作参数时，像素当X射线暴露时从X射线平面检测器输出的值和期望值的参考电平范围进行比较时，在该比较结果的期望值的参考电平范围内自动确定动作参数，动作参数和这种动作参数的拟合时间的信息作为时间转移数据被累积，并且从该时间转换数据的时间转换自动地评估X射线平面检测器的寿命。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2003322682A X-ray detector 审中-公开
标题翻译： X射线探测器
公开(公告)号：JP2003322682A
公开(公告)日：2003-11-14
申请号：JP2002131842
申请日：2002-05-07
申请人： Toshiba Corp , 株式会社東芝
发明人： AOKI KUNIO
IPC分类号： G01T1/24 , G01T1/20 , H01L27/14
摘要： PROBLEM TO BE SOLVED: To provide an X-ray detector capable of responding even if an image reading cycle, etc., changes arbitrarily by changing an offset image according to the image reading cycle, etc.
SOLUTION: When acquiring a diagnostic image, the electric charges accumulated in a pixel capacity of each pixel 134 are read at a prescribed reading cycle under the control of a reading control part 17. The electric charges thus read are amplified by a prescribed gain at an integral amplifier 135, and outputted to a signal processing part 18 as a diagnostic image. A factor calculation part 180 calculates correction factors (a) and (b) based on a difference dt between a reading cycle for an offset image which is acquired in advance and the reading cycle when acquiring the diagnostic image, and a difference dg between a gain for the offset image which is acquired in advance and the gain when acquiring the diagnostic image. The factor (a) is integrated into the offset image while the factor (b) is added to the offset image. The offset image after addition is subtracted from the diagnostic image for offset correction.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供即使图像读取周期等根据图像读取周期等改变偏移图像而任意改变的能够进行响应的X射线检测器。解决方案：当获取诊断图像，在读取控制部分17的控制下，以规定的读取周期读取以每个像素134的像素容量累积的电荷。这样读取的电荷在积分放大器135处被放大规定的增益并作为诊断图像输出到信号处理部18。因子计算部分180基于在获取诊断图像时预先获取的偏移图像的读取周期与读取周期之间的差值dt以及增益之间的差值dg来计算校正因子（a）和（b）对于预先获取的偏移图像和获取诊断图像时的增益。因子（a）被整合到偏移图像中，而因子（b）被添加到偏移图像。补偿后的偏移图像从用于偏移校正的诊断图像中减去。版权所有（C）2004，JPO

5. 发明专利

JP2003043151A Radioactive ray detector and radiographic device 有权
标题翻译：放射性检测器和放射性设备
公开(公告)号：JP2003043151A
公开(公告)日：2003-02-13
申请号：JP2001234373
申请日：2001-08-02
申请人： Toshiba Corp , 株式会社東芝
发明人： AOKI KUNIO
IPC分类号： G01T1/24 , A61B6/00 , G01T1/00 , G01T1/175 , H01L27/14 , H04N5/32
摘要： PROBLEM TO BE SOLVED: To apply a prescribed voltage in a short time in an emergency since time is taken until bias voltage reaches a rated value and the bias voltage must be applied on an FPD at a prescribed voltage increase rate. SOLUTION: This radioactive ray detector has a bias power source 9 for controlling the bias voltage applied on a converting membrane 23 for converting a radioactive ray into electric charge so as to gradually reach the rated value on the basis of the prescribed voltage increase rate, and has a voltage holding part 201 so as to restrain a sudden drop in the bias voltage applied on the converting membrane 23 when cutting of power source supply to the bias power source 9. Thus, when the power source supply is restored, voltage can be quickly increased to the prescribed high voltage from a holding voltage.
摘要翻译：要解决的问题：在紧急情况下，在短时间内施加规定的电压，直到偏压达到额定值，并且必须以规定的电压增加率对FPD施加偏置电压。解决方案：该放射线检测器具有用于控制施加在转换膜23上的偏置电压的偏置电源9，用于将放射线转换成电荷，以便基于规定的电压增加率逐渐达到额定值;以及具有电压保持部201，以便在切断向偏置电源9供给电源时抑制施加在转换膜23上的偏置电压的突然下降。因此，当电源恢复时，电压可以快速从保持电压增加到规定的高电压。

6. 发明专利

JP2000254115A RADIATION DETECTOR 失效
公开(公告)号：JP2000254115A
公开(公告)日：2000-09-19
申请号：JP6388899
申请日：1999-03-10
申请人： TOSHIBA CORP
发明人： AOKI KUNIO
IPC分类号： A61B6/00 , G01T1/20 , G01T1/24
摘要： PROBLEM TO BE SOLVED: To provide a radiation detector capable of detecting radiation by a radiation detection part in the state of separating the radiation detection part from a read circuit part by constituting the radiation detection part attachably and detachably to/from the read circuit part. SOLUTION: An X-ray detection part 20 is mounted to the read circuit part 30, a TFT 21 is operated by a gate driver 31 as needed, pixel charges stored in a storage capacitor 24 are cleared and bias power sources 22a and 22b are charged by a charging circuit 32. Thereafter, the X-ray detection part 20 is separated from the read circuit part 30 and X-ray photographing is performed. After the X-ray photographing using the X-ray detection part 20 is ended, the X-ray detection part 20 is mounted to the read circuit part 30, the TFT 21 is operated by the gate driver 31 and radiation information corresponding to the pixel charges stored in the storage capacitor 24 is read to an integration amplifier 33.

7. 发明专利

JPH11347024A RADIOGRAPHIC DIAGNOSTIC DEVICE 失效
公开(公告)号：JPH11347024A
公开(公告)日：1999-12-21
申请号：JP15743398
申请日：1998-06-05
申请人： TOSHIBA CORP
发明人： AOKI KUNIO
IPC分类号： A61B6/00
摘要： PROBLEM TO BE SOLVED: To provide a radiographic diagnostic device for X-ray fluoroscopy by forming a projected image from three-dimensional(3D) image data based on the inspection direction in the movable range of a C-arm and moving the C-arm in the inspection direction where the position of a morbid part to be treated can be grasped easily by an operator referring to the formed projected image. SOLUTION: A projected image forming unit 34 forms a projected image from 3D image data obtained by a 3D image data obtaining unit 33 based on the inspection direction in the movable range of a C arm 24 specified by an inspection direction setting unit 27. When the projected image displayed on a projected image forming monitor 35 is easy for an operator to grasp a lesion to be treated, the inspection direction is specified by the inspection direction setting unit 27, and the C arm 24 is moved based on the specified inspection direction to carry out the X-ray fluoroscopy.

8. 发明专利

JPH08280657A X-RAY DIAGNOSTIC APPARATUS 失效
公开(公告)号：JPH08280657A
公开(公告)日：1996-10-29
申请号：JP9263895
申请日：1995-04-18
申请人： TOSHIBA CORP
发明人： ASAHINA HIROSHI , AOKI KUNIO , KANEBAKO TOYOMITSU , NAKATANI TOSHIKUNI , NAKAYAMA HIROSHI , OZAWA MASAHIRO , MATSUMOTO KUNITOSHI
IPC分类号： A61B6/00 , A61B6/03
摘要： PURPOSE: To provide an X-ray diagnostic apparatus wherein angiocirculation can be easily grasped and burden of an operator performing manipulation is reduced. CONSTITUTION: An X-ray diagnostic apparatus is constituted of an X-ray fluoroscope 1 for collecting a through-view image of a subject to be examined by means of an X-ray transillumination, a TV monitor 14 for displaying the through-view image collected by means of the X-ray fluoroscope 1, an X-ray CT device 2 for collecting a three dimensional image of a patient 4, a digital image processing device 13 for forming a projected image by projecting the three dimensional image collected by means of the X-ray CT device 2 from a specified direction, and a TV monitor 15 for reference for displaying the projected image formed by means of the digital image processing device 13. The X-ray through-view image and the projected image of the three dimensional image of the patient 4 can be displayed thereby.

9. 发明专利

JPH0879628A X-RAY DIAGNOSTIC DEVICE 失效
公开(公告)号：JPH0879628A
公开(公告)日：1996-03-22
申请号：JP21104894
申请日：1994-09-05
申请人： TOSHIBA CORP
发明人： ASAHINA HIROSHI , AOKI KUNIO , KANEBAKO TOYOMITSU , NAKATANI TOSHIKUNI , NAKAYAMA HIROSHI , OZAWA MASAHIRO , MATSUMOTO KUNITOSHI
IPC分类号： A61B6/00 , H04N5/325
摘要： PURPOSE: To reduce artifacts by obtaining subtraction pictures only by a contrast medium for respective photographing angles and reconstituting three- dimensional data of a contrast medium part. CONSTITUTION: An X-ray projection picture signal is stored in a first picture memory 7 with the photographing angle as an address before the contrast medium is injected, and it is stored in a second picture memory 9 with the photographing angle as the address after the contrast medium is injected. X-ray projection picture data which are read out of the first picture memory 7 and the second picture memory 8 are transmittted to a subtraction processing means 9, and two pieces of X-ray projection picture data with the same photographing angle before and after the contrast medium is injected are subtracted. Thus, subtraction picture data of 72 frames different in the photographing angles are generated. A three-dimensional constitution means 10 gives an appropriate convolution filter to subtraction picture data of 72 frames, inversely projects them and reconstructs three-dimensional data of the contrast medium part.

10. 发明专利

JPH0765146A ULTRASONIC DIAGNOSTIC SYSTEM 失效
公开(公告)号：JPH0765146A
公开(公告)日：1995-03-10
申请号：JP20971893
申请日：1993-08-24
申请人： TOSHIBA CORP
发明人： AOKI KUNIO
IPC分类号： A61B8/14 , G06T1/00 , G06T15/08
摘要： PURPOSE:To provide the ultrasonic diagnostic system which can represent even a small lesion part and also represent even fine size variation of the lesion part in three dimensions and is suitable for early-stage detection and development observation. CONSTITUTION:This system is provided with an image data acquisition means (ultrasonic probe 10, electronic switch circuit 12, transmission and reception parts 13 and 14, controller 15, and three-dimensional image composition part 6) which obtains data of a 1st three-dimensional image of a diagnostic part of a patient P by scanning the diagnostic part in three dimensions with an ultrasonic wave beam, a difference detecting means (database part 17, image deviation correction part 18, and inter-pixel subtraction part 19) which detects differences in shape between the 1st three-dimensional image and a 2nd three- dimensional image obtained as to the past identical diagnosed part of the same sample, and a display means (display part 20) which displays an image based upon shape difference information.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式