利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

5 条记录 (耗时 0.009 秒)

    METHOD AND DEVICE FOR DETERMINING TARGET POSITION OF SINGLE-SLOT COLLIMATING PLATE, AND COLLIMATOR ASSEMBLY
    3.
    发明公开
    METHOD AND DEVICE FOR DETERMINING TARGET POSITION OF SINGLE-SLOT COLLIMATING PLATE, AND COLLIMATOR ASSEMBLY 审中-公开

    公开(公告)号：EP4147641A1

    公开(公告)日：2023-03-15

    申请号：EP20911981.7

    申请日：2020-06-10

    申请人： Siemens Shanghai Medical Equipment Ltd.

    发明人： CHEN, Wenhao ,  LI, Taotao ,  TENG, Changqing ,  ZHENG, Jingming ,  TIAN, Yi

    IPC分类号： A61B6/00

    摘要： A method (100) and device (800) for determining a target position of a single-slot collimating plate (23), and a collimator assembly (20, 30). The method (100) comprises: acquiring a first measurement signal, acquired on the basis of the first instance of air scanning, when the single-slot collimating plate (23) moves a predetermined distance from a starting position to a first position in a first direction of the Z axis (101); acquiring a second measurement signal, acquired on the basis of the second instance of air scanning, when the single-slot collimating plate (23) moves a predetermined distance from the starting position to a second position in the direction opposite to the first direction (102); on the basis of the first measurement signal and the second measurement signal, determining a composite measurement signal and a composite air calibration signal (103); calibrating the composite measurement signal by using the composite air calibration signal (104); and on the basis of the calibrated composite measurement signal, determining the target position of the single-slot collimating plate (23) (105). The target position of the single-slot collimating plate (23) can be determined by means of two instances of air scanning. The method is simple and convenient.