Rotating gantry of particle beam therapy system
First Claim
1. A rotating gantry of a particle beam therapy system, said gantry comprising:
- a gantry barrel;
ring members provided respectively at axial opposite ends of said gantry barrel;
a plurality of rollers rotatably supporting said ring members;
a roller support member for supporting said plurality of rollers;
a brake connected to at least one of said plurality of rollers, said brake releasing a braking force applied to said one roller upon supply of air and applying the braking force to said one roller upon discharge of air;
a solenoid valve for sealing the supplied air in said brake when closed, and discharging the air from said brake when opened; and
a solenoid valve support member mounted to said roller support member and supporting said solenoid valve.
1 Assignment
0 Petitions
Accused Products
Abstract
A rotating gantry includes a link frame for supporting a plurality of rollers which rotatably support the rotating gantry, a brake for releasing a braking force applied to at least one of the rollers upon supply of air and applying the braking force to the one roller upon discharge of air, and a solenoid valve for sealing the supplied air in the brake when closed, and discharging the air from the brake when opened. The solenoid valve is supported by a solenoid valve support member mounted to the link frame such that the solenoid valve is positioned just near the brake. The rotating gantry can be more quickly braked and stopped while maintaining high irradiation accuracy.
213 Citations
12 Claims
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1. A rotating gantry of a particle beam therapy system, said gantry comprising:
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a gantry barrel; ring members provided respectively at axial opposite ends of said gantry barrel; a plurality of rollers rotatably supporting said ring members; a roller support member for supporting said plurality of rollers; a brake connected to at least one of said plurality of rollers, said brake releasing a braking force applied to said one roller upon supply of air and applying the braking force to said one roller upon discharge of air; a solenoid valve for sealing the supplied air in said brake when closed, and discharging the air from said brake when opened; and a solenoid valve support member mounted to said roller support member and supporting said solenoid valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 11, 12)
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9. A rotating gantry of a particle beam therapy system including a treatment cage in which a charged particle beam is irradiated, said gantry comprising:
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a gantry barrel; ring members provided respectively at axial opposite ends of said gantry barrel; a plurality of rollers rotatably supporting said ring members; a roller support member for supporting said plurality of rollers; a brake connected to at least one of said plurality of rollers, said brake releasing a braking force applied to said one roller upon supply of air and applying the braking force to said one roller upon discharge of air; a solenoid valve for sealing the supplied air in said brake when closed, and discharging the air from said brake when opened; and a solenoid valve support member mounted to said roller support member and supporting said solenoid valve.
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10. A rotating gantry of a particle beam therapy system, comprising:
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a gantry barrel; ring members provided at axial opposite ends of said gantry barrel; a plurality of rollers rotatably supporting said ring members; a roller support member for supporting said plurality of rollers; a brake connected to at least one of said plurality of rollers, said brake releasing a braking force applied to said one roller upon supply of air and applying the braking force to said one roller upon discharge of air; and a solenoid valve disposed near said brake, sealing the supplied air in said brake when closed, and discharging the air from said brake when opened.
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Specification