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OwnerVelayudhan Sahadevaninventor
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S-band, C-band or X-band microwave powered linear accelerators capable of delivering therapeutic photon and electron beams are mounted to a gantry with extensions to hold multiple accelerators and are combined with a kV CT for 3-D conformal—IMRT and IGRT to treat a patient by SSD or SAD methods and in a full circle. The invention's tertiary collimator system consists of semi-automated reusable custom field shaping with tungsten powder or melted Cerrobend blocks. The beam's intensity modulation is by means of simultaneous but independently operating multiple accelerators. This system's multiple accelerators enable to avoid interrupted subfractionated radiation therapy to each treatment fields. Hence its effective dose rate at the tumor site is high. The improved radiobiology reduces the total radiation dose to treat a tumor, reducing the incidence of developing second primary tumors is also minimized.
A dynamic radiation therapy field shaping system with multiple radiation sources arranged in a circle and combined with a computerized tomotherapy device for image guided all field simultaneous conformal radiation therapy by means of 2, 3, 4 or more radiation sources and beam shaping blocks made in conformity with the shape of the tumor and said conformal blocks are made with the aid of a plurality of block making assembly, one for each of the radiation sources and said radiating beam is shaped in conformity with the shape of the tumor as it is seen per each beam's eye view to treat a tumor through 2, 3, 4 or more fields simultaneously and said conformal dynamic filed shaping is with the aid of simulating conformal light beam seen as coming from each of the radiation sources and passing through Styrofoam that is cut in conformity with the shape of the tumor in a patient who is treated and placed underneath the radiation source to aid to make the said dynamic conformal block and comprising:
An image guided and intensity modulated all field simultaneous radiation therapy system combined with a kilovoltage computerized tomography system and 2, 3, 4 or more radiation sources arranged in a circle and with a plurality of dynamic block making assembly, one for each of the radiation sources and said radiating beam is shaped in conformity with the shape of the tumor as it is seen per each beam's eye view to treat a tumor through 2, 3, 4 or more fields simultaneously and said system for each radiation source's beam shaping block making consists of reservoirs filled with block making material comprising tungsten powder or melted Cerrobend and Styrofoam cuts to aid to make the blocks and said block making system is placed on a tray directly below the radiation sources and the space formed in between the Styrofoam cuts is automatically filled in and emptied from said block making materials and its such repeated use and said radiating beam's intensity is modulated with thin layers of stacked tungsten or lead blades.
Dependencies are inferred from the claim text.