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US Patent 11511130 Systems and methods for adjusting multi-leaf collimator

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Is a
Patent
Patent

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
11511130
Date of Patent
November 29, 2022
Patent Application Number
16848857
Date Filed
April 15, 2020
Patent Citations
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US Patent 11331517 Multi-leaf collimator and radiation therapy device
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US Patent 10987523 Platform for intensity modulated radiation therapy
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US Patent 11000706 Radiation therapy systems and methods
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US Patent 10398911 Method and apparatus for using a multi-layer multi-leaf collimation system
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US Patent 10420958 Apparatus and method for employing a multi-leaf collimator while administering a radiation dose
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US Patent 10434334 Methods and systems for irradiation based on a fluence map
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US Patent 10441814 Method and apparatus to employ a multi-layer multi-leaf collimator when administering a radiation therapy treatment
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US Patent 10500417 Compensating for leakage radiation in MLC modulated treatment
...
Patent Primary Examiner
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Allen C. Ho
CPC Code
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A61N 5/103
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A61N 5/1031
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A61N 5/1036
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A61N 5/1042
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A61N 5/1043
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A61N 5/1044
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A61N 5/1045
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A61N 5/1047
...

The disclosure provides systems and methods for adjusting a multi-leaf collimator (MLC). The MLC includes a plurality of cross-layer leaf pairs, each cross-layer leaf pair of the plurality of cross-layer leaf pairs includes a first leaf located in a first layer of leaves and a second leaf opposingly located in a second layer of leaves. For at least one cross-layer leaf pair, an effective cross-layer leaf gap to be formed between the first leaf and the second leaf may be determined; at least one of the first leaf or the second leaf may be caused to move to form the effective cross-layer leaf gap; and an in-layer leaf gap may be caused, based on the effective cross-layer leaf gap, to be formed between the first leaf and an opposing first leaf in the first layer. A size of the in-layer leaf gap may be no less than a threshold.

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