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公开(公告)号：EP4368980A1
公开(公告)日：2024-05-15
申请号：EP22836962.5
申请日：2022-07-06
Applicant: Nuctech Company Limited , Tsinghua University
Inventor： ZHANG, Li , CHEN, Zhiqiang , HUANG, Qingping , DING, Hui , ZHOU, Yong , JIN, Xin , YAO, Liming
CPC classification number: G01V5/00 , G01N23/046 , G01N23/10 , G01N23/04
Abstract: Provided are an inspection system and an inspection method, the inspection system includes: a carrying device (300); at least one ray source (100) each includes a separate housing (110) to define a vacuum space and target spots enclosed within the housing (110), and a detector assembly (200). The at least one ray source (100) is rotatable between a plurality of scanning positions around a rotation axis relative to the carrying device (300). The at least one ray source (100) and the detector assembly (200) may be lifted or lowered along the rotation axis relative to the carrying device (300). When the at least one ray source (100) is located at one of scanning positions relative to the carrying device (300), the at least one ray source (100) and the detector assembly (200) are lifted or lowered along the rotation axis relative to the carrying device (300) and the at least one ray source (100) emits X-rays. After the at least one ray source (100) and the detector assembly (200) are lifted or lowered a predetermined distance relative to the carrying device (300), the at least one ray source (100) rotates around the rotation axis relative to the carrying device (300) to another one of scanning positions.
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公开(公告)号：EP4368979A1
公开(公告)日：2024-05-15
申请号：EP22837013.6
申请日：2022-07-07
Applicant: Tsinghua University , Nuctech Company Limited
Inventor： CHEN, Zhiqiang , ZHANG, Li , HUANG, Qingping , ZHOU, Yong , ZHAO, Zhenhua , DING, Hui , JIN, Xin , JI, Chao
IPC: G01N23/046 , A61B6/03 , G01V5/00
Abstract: A ray scanning device, comprising a conveying device (1) for transporting a tested object (6) through a scanning area of the ray scanning device; a ray source (3) comprising a plurality of ray source modules (31, 32, 33, 34), each of the ray source modules (31, 32, 33, 34) comprising at least one ray source point; observing from the conveying direction of the tested object (6), the plurality of ray source modules (31, 32, 33, 34) being arranged around the scanning area in a non-closed structure having an opening on one side of the scanning area; and a detector (4) for detecting rays transmitted through the tested object (6) during scanning and comprising a plurality of detector groups (41, 42, 43, 44), the end portions of the plurality of detector groups (41, 42, 43, 44) being connected to each other and arranged around the scanning area in a non-closed structure having an opening on one side of the scanning area; the opening of the non-closed structure of the ray source (3) being arranged opposite to the opening of the non-closed structure of the detector (4). The plurality of detector groups (41, 42, 43, 44) of the detector (4) are fixed in a same plane perpendicular to the conveying direction of the tested object (6), and the plurality of ray source modules (31, 32, 33, 34) of the ray source (3) are arranged in a plurality of different planes perpendicular to the conveying direction of the tested object (6)
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公开(公告)号：EP4234966A1
公开(公告)日：2023-08-30
申请号：EP21881839.1
申请日：2021-09-27
Applicant: NUCTECH COMPANY LIMITED , Tsinghua University
Inventor： ZHANG, Li , CHEN, Zhiqiang , HONG, Mingzhi , HUANG, Qingping , WANG, Zinan , LIANG, Jinning , HOU, Hongbin
IPC: F16C35/02
Abstract: Disclosed is a support frame (1) of a CT imaging system, including: a connection flat plate portion (10); a support body portion (20) disposed on the connection flat plate portion (10); an X-ray source installation reference portion (30) disposed on the connection flat plate portion (10); an electrical installation portion (40); a cooling component installation portion (50); and a through hole (60), wherein the through hole is surrounded by the support body portion (20), the X-ray source installation reference portion (30), the electrical installation portion (40) and the cooling component installation portion (50), and the through hole penetrates the connection body portion (10). The connection flat plate portion (10), the support body portion (20), the X-ray source installation reference portion (30), the electrical installation portion (40) and the cooling component installation portion (50) are integrally formed.
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公开(公告)号：EP4201334A1
公开(公告)日：2023-06-28
申请号：EP22216583.9
申请日：2022-12-23
Applicant: Nuctech Company Limited , Tsinghua University
Inventor： ZHANG, Li , CHEN, Zhiqiang , SUN, Yunda , LI, Xinbin , ZHAO, Zhenhua , ZHAO, Tiao , JIN, Xin
IPC: A61B6/00 , G01N23/046 , G01N23/10 , G01T7/00
Abstract: Provided is a calibration assembly, including: a base; and a plurality of calibration wires dispersedly connected to the base, wherein an absorption capacity of the calibration wire for X-rays is greater than an absorption capacity of the base for X-rays Through a specific structure design of a plurality of calibration wires in the calibration assembly in the present disclosure, the calibration wires are dispersedly connected to the base, and taking advantage of the characteristics that the absorption capacity of the calibration wire for X-rays is greater than the absorption capacity of the base for X-rays, the above-mentioned calibration wires are applied to the calibration phantom, and the calibration phantom is scanned in the scanning system. By continuously adjusting the geometric parameter values in the imaging method, the optimal geometric parameter values that are closest to the real scanning system structure may be obtained, thereby improving the imaging effect of the scanning system.
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公开(公告)号：EP4160277A1
公开(公告)日：2023-04-05
申请号：EP21814516.7
申请日：2021-05-24
Applicant: Tsinghua University , Nuctech Company Limited
Inventor： CHEN, Zhiqiang , ZHANG, Li , HUANG, Qingping , HONG, Mingzhi , ZHANG, Liguo , LI, Guipei
IPC: G01V5/00 , G01N23/046
Abstract: There is provided a CT scanning apparatus (100), including: a support frame (1); a slip ring (2); a driving mechanism (3) configured to drive the slip ring (2) to rotate with respect to the support frame (1); at least two annular rails (4) mounted on an outer periphery of the slip ring; and at least two groups of support devices (5), each group of support devices (5) includes at least two roller assemblies (51) surrounding the annular rail (4) and configured to support the slip ring (2). Each roller assembly (51) includes a roller (511), the roller (511) is mounted on the support frame (1) and engaged with the annular rail to support the slip ring (2). A roller (511) of at least one roller assembly (51) of the at least two roller assemblies (51) is engaged with the annular rail (4) to prevent a movement of the slip ring (2) in an axial direction. A cantilever structure used to support the slip ring may be omitted by using a plurality of rollers (511) having a small external diameter to support the slip ring (2), and the rollers (511) may be easily replaced when being damaged.
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Patent Agency Ranking
公开(公告)号：EP4159136A1
公开(公告)日：2023-04-05
申请号：EP21814608.2
申请日：2021-05-25
Applicant: Tsinghua University , Nuctech Company Limited
Inventor： ZHANG, Li , CHEN, Zhiqiang , HONG, Mingzhi , WANG, Zinan , HUANG, Qingping , ZHANG, Liguo
Abstract: Provided are a support stand (10) and a CT detection device (100). The support stand (10) is configured to support a rotating frame (30) of the CT detection device (100), and the support stand includes: a main body portion (11) including a bearing mounting hole (12), wherein a slip ring bearing (20) of the CT detection device (100) is arranged in the bearing mounting hole (12), and the rotating frame (30) is rotatably disposed in the slip ring bearing (20); a pedestal (13) located at a bottom portion of the main body portion (11) and configured to support the main body portion (11); and a connecting portion (14), wherein a width of a lower portion of a cross section of the connecting portion is greater than a width of an upper portion of the cross section of the connecting portion, an upper portion of the connecting portion (14) is connected to the main body portion (11), and a lower portion of the connecting portion (14) is connected to the pedestal (13).
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公开(公告)号：EP3901815A1
公开(公告)日：2021-10-27
申请号：EP19898062.5
申请日：2019-09-10
Applicant: Nuctech Company Limited , Tsinghua University
Inventor： ZHANG, Li , SUN, Yunda , ZHAO, Tiao , JIN, Xin , SHEN, Le , CHEN, Zhiqiang
Abstract: This application discloses an image display method, apparatus and device and a computer storage medium. The image display method includes: determining object positions of a target object in multiple first images; processing the multiple first images based on the object positions and a target position and generating multiple second images in one-to-one correspondence with the multiple first images, wherein the target object is positioned at the target position in the second images respectively, and the target position is a same position in the multiple second images; and displaying the multiple second images. According to embodiments of the application, when the images are displayed, the target object can be always displayed at the target position, thereby facilitating the user to view the target object.
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公开(公告)号：EP3130915B1
公开(公告)日：2020-07-22
申请号：EP15871897.3
申请日：2015-12-16
Applicant: Tsinghua University , Nuctech Company Limited
Inventor： ZHANG, Li , WANG, Shuo , SUN, Yunda , HUANG, Qingping
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公开(公告)号：EP2587237B1
公开(公告)日：2019-11-27
申请号：EP10853414.0
申请日：2010-12-24
Applicant: Tsinghua University , Nuctech Company Limited
Inventor： CHEN, Zhiqiang , ZHANG, Li , LIU, Yinong , ZHAO, Ziran , WANG, Hongqiu , YU, Dongmei , GAI, Hongfeng , LI, Mingliang
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公开(公告)号：EP2960686B1
公开(公告)日：2019-05-29
申请号：EP15173496.9
申请日：2015-06-24
Applicant: Tsinghua University , Nuctech Company Limited
Inventor： CHEN, Zhiqiang , ZHANG, Li , JIN, Xin , HUANG, Qingping , SHEN, Le , SUN, Yunda
IPC: G01V5/00
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