X-ray or gamma ray systems or devices – Beam control – Collimator
Reexamination Certificate
2003-11-20
2008-10-21
Kiknadze, Irakli (Department: 2882)
X-ray or gamma ray systems or devices
Beam control
Collimator
C378S148000, C378S150000
Reexamination Certificate
active
07440550
ABSTRACT:
A collimator is to be provided which permits the reduction of size without using any special material and without sacrificing an aperture. To this end, the collimator comprises: a pair of first plate members each having X-ray absorbability, movable in a direction parallel to a surface thereof, and defining an X-ray passing aperture by a spacing between respective mutually opposed end faces; and a pair of second plate members each having X-ray absorbability, the second block members, in order to block other X-rays than the X-ray passing through the aperture, being connected at respective one ends by hinges to end portions of the pair of first plate members opposite to the mutually opposed end faces of the first plate members and being supported at respective opposite ends so as to be movable obliquely with respect to the moving direction of the first plate members with movement of the first plate members.
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Xiaodong Xu et al.; Patent Application “Collimator, X-Ray Irradiator, And X-Ray Apparatus” filed Nov. 4, 2004; U.S. Appl. No. 10/982,114;17 pgs.
Armstrong Teasdale LLP
GE Medical Systems Global Technology Company LLC
Kiknadze Irakli
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