Multileaf collimator and radiation treatment device
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United States of America Patent
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Oct 29, 2019
Grant Date -
Jan 25, 2018
app pub date -
Jan 29, 2015
filing date -
Jan 29, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
This multileaf collimator is provided with multiple leaves which limit the area irradiated by a radiation beam and which are arranged in the thickness direction. Each of the leaves is provided with a protruded portion which is formed protruding towards a first surface of the leaf, a depressed portion which is formed in the second surface of the leaf and into which the protruded portion formed on another leaf is inserted, a first curved surface which is formed between the first surface of the leaf and the lateral surface of the protruded portion, and a second curved surface which is formed between the second surface of the leaf and the lateral surface of the depressed portion.
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