X-ray or gamma ray systems or devices – Beam control – Collimator
Reexamination Certificate
2007-07-10
2007-07-10
Glick, Edward J. (Department: 2882)
X-ray or gamma ray systems or devices
Beam control
Collimator
C378S065000, C378S147000, C378S150000
Reexamination Certificate
active
11034885
ABSTRACT:
A radiotherapy apparatus comprising a radiation source configured to radiate a radiation ray, a multi leaf collimator, including a plurality of leaves, configured to limit a radiation range of the radiation ray and a drive unit configured to move at least one of the leaves with an ultrasonic wave.
REFERENCES:
patent: 6918698 (2005-07-01), Nordmeyer et al.
patent: 6920203 (2005-07-01), Short et al.
patent: 2002-253686 (2002-09-01), None
Glick Edward J.
Kabushiki Kaisha Toshiba
Kao Chih-Cheng Glen
Toshiba Medical Systems Corporation
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