US 2017/0001041 A1Published application

Particle beam therapy system

AssigneeHitachi, Ltd.

InventorsTsutomu YAMASHITA, Tatsuya FUJISAWA, Takenori NISHIMURA

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Abstract

A particle therapy system has an irradiation system attached to a rotary drum of a gantry. A radiation treatment cage disposed in the rotary drum includes a movable floor including a horizontal floor portion. The movable floor includes a number of footboards connected bendably and X-ray transmission plates. The movable floor has a slide member at each end thereof, and the slide member is movably attached to a guide rail that is provided for each of opposite side surfaces of the irradiation system. X-ray sources are disposed outside the rotary drum apart from each other in a circumferential direction of the rotary drum and attached to the outer surface of the rotary drum. The irradiation system includes X-ray detection systems opposite to the X-ray sources.

Claims14

Dependent claims

A particle therapy system comprising:

a gantry;
an irradiation system which is attached to the gantry and to which an ion beam is incident;
a treatment cage installed in the gantry, having an orbit including an arc-like portion and a horizontal portion communicating with the arc-like portion, and including a surrounding member formed by a plurality of connected footboard members and capable of moving along the orbit;
an X-ray source disposed outside the surrounding member and attached to the gantry;
and
an X-ray detection system disposed inside the surrounding member, attached to the irradiation system, and detecting an X-ray from the X-ray source, wherein the surrounding member includes an X-ray transmission member disposed between the adjacent footboard members, connected to the each of the adjacent footboard members, disposed between the X-ray source and the X-ray detection system, and transmitting an X-ray emitted from the X-ray source.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/196,140Filed 29 Jun 2016
Priority: JP 2015-13140730 Jun 2015
Published: 5 Jan 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

A61N 5/1081
Beam delivery systems: rotating beam systems with a specific mechanical construction, e.g. gantries
A61N 5/1049
Monitoring, verifying, controlling systems and methods: for verifying the position of the patient with respect to the radiation beam
A61N 2005/1061
For verifying the position of the patient with respect to the radiation beam: using an x-ray imaging system having a separate imaging source
A61N 2005/1087
Characterised by the type of particles applied to the patient: ions; Protons