SHANGHAI SONGS LABORATORY TECHNOLOGY DEVELOPMENT CO.; LTD.
发明人:
WANG, XIANGYU
申请号：
CNCN2010/078984
公开号：
WO2012/040964A1
申请日:
2010.11.23
申请国别(地区):
WO
年份:
2012
代理人:
摘要：
A radiotherapy device, a radiation device and a collimation device are provided by the invention. The collimation device includes an axial hollow collimation body, which has at least a group of collimation pores center lines of each group of collimation pores are focused on a common focus, and distribution rules of each group of collimation pores are matched with the distribution rule of a radiation source. The device also includes a switching body, which is rotatablely set in the axial hollow collimation body, and the switching body is used to permit or block that radiation rays to pass through the collimation pores. The invention can improve control precision of the collimation device, and reduce axial size of the collimation device, thereby reducing weight of the collimation device, saving material, making processing and manufacture simple. The collimation body and the switching body are rotated simultaneously to implement that the switching body permits or blocks the radiation rays to pass through the collimation pores, and thereby the conversing speed of the radiotherapy device from a treated state to a non-treated state is improved.Linvention porte sur un dispositif de radiothérapie, un dispositif de rayonnement et un dispositif de collimation. Le dispositif de collimation comprend un corps de collimation creux axial, qui a au moins un groupe de pores de collimation les lignes centrales de chaque groupe de pores de collimation sont focalisées sur un foyer commun, et les règles de répartition de chaque groupe de pores de collimation correspondent à la règle de répartition dune source de rayonnement. Le dispositif comprend également un corps de commutation, qui est placé de manière rotative dans le corps de collimation creux axial, et le corps de commutation est utilisé pour permettre ou empêcher les rayonnements de passer à travers les pores de collimation. Linvention permet daméliorer la précision de commande du dispositif de collimation et de réduire la dime
