Shanghai United Imaging Healthcare Co., Ltd.

Xiao Fang

Jian Zhang

Jian Ming Liu

Hui Yin

Hui Zhou

Xiaolong Liu

Dun Li

Xu Chao

Mingchun Zhai

Guangzhong Bao

Cheng Ni

Yuelin Shao

Kun Yang

Jian Liu

The present disclosure relates to a collimator. The collimator may include a motor, a transmission unit having a first end and a second end, and a leaf unit having a leaf. The first end of the transmission unit may be connected to the motor and the second end of the transmission unit may be connected to the leaf. The present disclosure also relates to a collimator system. The collimator system may include a leaf module having a leaf, a driving module having a motor configured to drive the leaf, and a processing module to generate a movement profile of the leaf. The movement profile of the leaf may include a first speed during a first stage, a second speed of the leaf during a second stage, and a third speed of the leaf during a third stage.

Multi-leaf collimator and driving system

A radiation emission device is provided. The radiation emission device may include a cathode configured to emit an electron beam and an anode configured to rotate on a shaft. The anode may be situated to receive the electron beam from the cathode. The radiation emission device may further include a rotor configured to drive the anode to rotate. The rotor may be mechanically connected to the shaft. The radiation emission device may further include a sleeve configured to support the shaft via at least one bearing. The cathode, the anode, and the rotor may be enclosed in an enclosure that is connected to the sleeve. At least a portion of the sleeve may reside outside the enclosure.

Radiation emission device

The present disclosure relates to a radiation system. The system may include a treatment assembly, an imaging assembly, a first gantry, and a second gantry. The treatment assembly may include a first radiation source configured to deliver a treatment beam and have a treatment region. The first gantry may be configured to support the first radiation source. The imaging assembly may include a second radiation source and a radiation detector. The second radiation source may be configured to deliver an imaging beam and the radiation detector may be configured to detect at least a portion of the imaging beam. The imaging assembly may have an imaging region. The second gantry may be configured to support the second radiation source and the radiation detector, wherein the second radiation source is located within the second gantry. The treatment region and the imaging region at least partially overlap.

Systems and methods for CT imaging in image-guided radiotherapy

The present disclosure relates a multi-leaf collimator. The multi-leaf collimator may include a plurality of leaf modules. Each leaf module of the plurality of leaf modules may include a leaf configured to shield a portion of beams emitted by a radiation source. The leaf may be movable along a guide rail of the multi-leaf collimator. Each leaf module may also include a drive mechanism including a first drive component and a second drive component. The first drive component and the second drive component may be both connected to the leaf. The first drive component and the second drive component may jointly actuate the leaf to move along the guide rail.

Multi-leaf collimator

A system and method for image-guided radiotherapy are provided. The system may include a treatment assembly and an imaging assembly. The treatment assembly may include a first radiation source configured to deliver a treatment beam. The treatment assembly may have a treatment region relating to an object. The imaging assembly may include a second radiation source and a radiation detector. The second radiation source may be configured to deliver an imaging beam, and the radiation detector may be configured to detect at least a portion of the imaging beam. The imaging assembly may have an imaging region relating to the object. The first radiation source may be rotatable in a first plane, and the second radiation source may be rotatable in a second plane different from the first plane, such that the treatment region and the imaging region at least partially overlap.

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Shanghai, China

Xiao Fang