公开(公告)号：US20240298401A1

公开(公告)日：2024-09-05

申请号：US18650039

申请日：2024-04-29

Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.

Inventor： Guoping ZHU ,  Jinglin WU ,  Tieshan ZHANG ,  Siming CHEN ,  Xu CHU

IPC: H05G1/52 ,  H01J35/14 ,  H05G1/58

CPC classification number: H05G1/52 ,  H01J35/147 ,  H05G1/58

Abstract: A method may include obtaining a feedback or a reference value of a tube voltage applied to a radiation source of a radiation device for generating radiation rays. The method may also include determining, based on the feedback or the reference value of the tube voltage, a specific value of a focusing parameter associated with a focusing device of the radiation device. The method may further include causing the focusing device to shape a focus of the radiation rays according to the determined value of the focusing parameter. The focus of the radiation rays may satisfy an operational constraint under the specific value of the focusing parameter.

公开(公告)号：US12070347B2

公开(公告)日：2024-08-27

申请号：US18228236

申请日：2023-07-31

Applicant: Varian Medical Systems, Inc.

Inventor： Arundhuti Ganguly ,  Gary F. Mrshup ,  Michelle Richmond ,  Billy Dan Jones

IPC: A61B6/00 ,  G21K1/10 ,  H05G1/58 ,  H05G1/60 ,  A61B6/04 ,  A61B6/50 ,  G01N23/00 ,  G01N23/04 ,  H01J35/04

CPC classification number: A61B6/484 ,  A61B6/482 ,  G21K1/10 ,  H05G1/58 ,  H05G1/60 ,  A61B6/04 ,  A61B6/50 ,  A61B6/54 ,  G01N23/00 ,  G01N23/04 ,  H01J35/045

Abstract: A system can have an x-ray source that generates a series of individual x-ray pulses for multi-energy imaging. A first x-ray pulse can have a first energy level and a subsequent second x-ray pulse in the series can have a second energy level different from the first energy level. An x-ray imager can receive the x-rays from the x-ray source and can detect the received x-rays for image generation. A generator interface box (GIB) controls the x-ray source to provide the series of individual x-ray pulses and synchronizes detection by the x-ray imager with generation of the individual x-ray pulses. The GIB can control x-ray pulse generation and synchronization to optimize image generation while minimizing unnecessary x-ray irradiation.

公开(公告)号：US12023520B2

公开(公告)日：2024-07-02

申请号：US18143619

申请日：2023-05-05

Applicant: SIEMENS HEALTHINEERS INTERNATIONAL AG

Inventor： Reto Filiberti

IPC: A61N5/10 ,  A61B6/46 ,  H01H9/16 ,  H01H13/02 ,  H01H13/70 ,  H05G1/56 ,  H05G1/58 ,  A61B6/04 ,  A61B17/00 ,  H03K17/18 ,  H03K17/955 ,  H03K17/96

CPC classification number: A61N5/1048 ,  A61B6/461 ,  A61B6/467 ,  H01H9/161 ,  H01H13/023 ,  H01H13/70 ,  H05G1/56 ,  H05G1/58 ,  A61B6/0487 ,  A61B2017/00017 ,  A61B2017/00199 ,  A61N2005/1074 ,  H01H2013/026 ,  H01H2239/006 ,  H01H2239/064 ,  H01H2300/014 ,  H01H2300/038 ,  H01H2300/04 ,  H03K17/18 ,  H03K17/955 ,  H03K17/96 ,  H03K17/962

Abstract: A radiation therapy system includes an X-ray imaging system that is configured with a combined and simplified filter and collimator positioning mechanism. In addition, an X-ray imager of the RT system is only positioned at a few discrete locations within a plane that is a fixed distance from the imaging X-ray source when generating X-ray images. As a result, for each of these discrete imaging positions, the simplified filter and collimator positioning mechanism positions a specific collimator-filter combination in a specific location between the X-ray source and the imager.

公开(公告)号：US20230372737A1

公开(公告)日：2023-11-23

申请号：US18227992

申请日：2023-07-31

Applicant: Varian Medical Systems, Inc.

Inventor： Ross HANNIBAL ,  Wade CURTISS

IPC: A61N5/10 ,  A61B6/00 ,  H01H13/70 ,  H01H9/16 ,  H05G1/56 ,  H05G1/58 ,  H01H13/02 ,  H03K17/18 ,  A61B17/00 ,  A61B6/04 ,  H03K17/96 ,  H03K17/955

CPC classification number: A61N5/1048 ,  A61B6/461 ,  H01H13/70 ,  H01H9/161 ,  H05G1/56 ,  H05G1/58 ,  H01H13/023 ,  A61B6/467 ,  H01H2239/064 ,  H01H2300/014 ,  H03K17/18 ,  A61B2017/00017 ,  H01H2300/04 ,  A61B6/0487 ,  H03K17/96 ,  H01H2013/026 ,  H01H2239/006 ,  H01H2300/038 ,  H03K17/962 ,  A61N2005/1074 ,  H03K17/955 ,  A61B2017/00199

Abstract: A motion-enable device includes a mechanical switch and a capacitive sensor with a sensing region that is located adjacent to the mechanical switch. The mechanical switch enables a first signal when closed or actuated that indicates that the mechanical switch is in an active state. The capacitive sensor enables a second signal when a conductive object is disposed in the sensing region, where the second signal indicates that the capacitive sensor is in an active state. Enablement of operation of an apparatus depends on receipt of both the first signal and the second signal. The mechanical switch and the capacitive sensor act as the two separate switches required by functional safety requirements for a motion enable device. Because the sensing region of the capacitive sensor is adjacent to the mechanical switch, the first and second signals are generated when an operator actuates the mechanical switch with a single digit.

公开(公告)号：US20230371914A1

公开(公告)日：2023-11-23

申请号：US18228236

申请日：2023-07-31

Applicant: Varian Medical Systems, Inc.

Inventor： Arundhuti GANGULY ,  Gary F. VIRSHUP ,  Michelle RICHMOND ,  Billy Dan JONES

IPC: A61B6/00 ,  H05G1/58 ,  G21K1/10 ,  H05G1/60

CPC classification number: A61B6/484 ,  H05G1/58 ,  A61B6/482 ,  G21K1/10 ,  H05G1/60 ,  H01J35/045

Abstract: A system can have an x-ray source that generates a series of individual x-ray pulses for multi-energy imaging. A first x-ray pulse can have a first energy level and a subsequent second x-ray pulse in the series can have a second energy level different from the first energy level. An x-ray imager can receive the x-rays from the x-ray source and can detect the received x-rays for image generation. A generator interface box (GIB) controls the x-ray source to provide the series of individual x-ray pulses and synchronizes detection by the x-ray imager with generation of the individual x-ray pulses. The GIB can control x-ray pulse generation and synchronization to optimize image generation while minimizing unnecessary x-ray irradiation.

公开(公告)号：US20220217831A1

公开(公告)日：2022-07-07

申请号：US17610831

申请日：2020-05-06

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： HEINER DAERR ,  BERND RUDI DAVID

IPC: H05G1/58 ,  H01J35/14

Abstract: An imaging system (202) includes an X-ray radiation source (210) configured to emit radiation that traverses an examination region. The imaging system further includes a controller (220). The controller is configured to control an X-ray tube peak voltage of the X-ray radiation source to switch between at least two different X-ray tube peak voltages during a kVp switched spectral scan. The controller is further configured to control a grid voltage of the X-ray radiation source to follow the X-ray tube peak voltage during the spectral scan. The controller adjusts the grid voltage based on a predetermined mapping between a currently applied X-ray tube peak voltage and a corresponding grid voltage for a given focal spot size, thereby maintaining the given focal spot size throughout the spectral scan.

公开(公告)号：US20220184420A1

公开(公告)日：2022-06-16

申请号：US17685411

申请日：2022-03-03

Applicant: Varian Medical Systems, Inc.

Inventor： Ross HANNIBAL ,  Wade CURTISS

IPC: A61N5/10 ,  H01H13/02 ,  H01H9/16 ,  H01H13/70 ,  A61B6/00 ,  H05G1/58 ,  H05G1/56

Abstract: A motion-enable device includes a mechanical switch and a capacitive sensor with a sensing region that is located adjacent to the mechanical switch. The mechanical switch enables a first signal when closed or actuated that indicates that the mechanical switch is in an active state. The capacitive sensor enables a second signal when a conductive object is disposed in the sensing region, where the second signal indicates that the capacitive sensor is in an active state. Enablement of operation of an apparatus depends on receipt of both the first signal and the second signal. The mechanical switch and the capacitive sensor act as the two separate switches required by functional safety requirements for a motion enable device. Because the sensing region of the capacitive sensor is adjacent to the mechanical switch, the first and second signals are generated when an operator actuates the mechanical switch with a single digit.

公开(公告)号：US20210227675A1

公开(公告)日：2021-07-22

申请号：US16095874

申请日：2016-04-27

Applicant: SHIMADZU CORPORATION

Inventor： MAKOTO MURAKAMI

IPC: H05G1/10 ,  H05G1/32 ,  H05G1/46 ,  H05G1/58

Abstract: An X-ray apparatus is provided with a control circuit. When a duration monitored by a timer in which the device is not operated exceeds a predetermined set time, and a duration monitored by a timer in which a connected state is detected by a transformer exceeds a predetermined set time, the control circuit performs control while disconnecting the connection between a storage cell and a high voltage generation circuit, and performs control while starting the charging of the storage cell via a power socket which is an external power source. This makes it possible, merely by connecting the apparatus main body to the power socket which is an external power source, to disconnect the connection between the storage cell and the high voltage generation circuit and starts the charging of the storage cell on the basis of the results obtained by the timer. As a result, it is possible to automatically charge the storage cell by connecting to the power socket which is an external power source without relying on the actuation and the stoppage of the apparatus.

公开(公告)号：US10548208B2

公开(公告)日：2020-01-28

申请号：US15523598

申请日：2014-10-30

Applicant: Shimadzu Corporation

Inventor： Takuya Yuasa ,  Norimasa Hishida ,  Makoto Katoh

IPC: H05G1/58 ,  H05G1/56

Abstract: An X-ray device may comprise a timer for monitoring a nonoperation time, such as a time from a previous signal input to a control circuit to the next input signal. When the timer detects that the nonoperation time has exceeded a preset time, the control circuit controls the contactors and so as to turn off the contactors. The standby power of the X-ray device when the frequency of use during the nonoperation time is low can be reduced. Further, when the next signal is input to the control circuit, the control circuit controls the contactors so as to close the contactors, thereby restoring power supply. Therefore, when the next signal is input to the control circuit, the X-ray device is turned to a usable state.

公开(公告)号：US20190116654A1

公开(公告)日：2019-04-18

申请号：US16086440

申请日：2017-03-21

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： LESTER DONALD MILLER ,  NIRMAL SONI ,  ROLF KARL OTTO BEHLING ,  ROLAND PROKSA ,  DIONYS VAN DE VEN

IPC: H05G1/32 ,  H05G1/58 ,  H01J35/04 ,  H01J35/06 ,  H01J35/10

Abstract: The present invention relates to an apparatus for generating X-rays. It is described to produce (210) with a power supply (40) at least two voltages between at least one cathode (20) and an anode (30), wherein the at least two voltages comprises a first voltage and a second voltage. The at least one cathode is positioned relative to the anode. Electrons are emitted (220) from the at least one cathode. Electrons emitted from the at least one cathode are interacted (230) with the anode with energies corresponding to the at least two voltages. X-rays are generated (230) from the anode, wherein the electrons interact with the anode to generate the X-rays. First X-rays are generated when the power supply produces the first voltage and second X-rays are generated when the power supply produces the second voltage. The power supply is controlled (250), such that a ratio between the first X-rays and the second X-rays is controllable.