Movable Floor X-ray Transmittance for Particle Beam Therapy
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Solution Overview
Problem
Current particle beam therapy apparatuses face complexity and prolonged treatment times due to the arrangement and retraction of X-ray imaging devices, which complicates the acquisition of high-quality X-ray images necessary for accurate lesion positioning.
Innovation Solution
A particle beam therapy apparatus with a movable floor system and X-ray imaging devices positioned in a non-collision area, using X-ray transmittable materials and a removable first floor member to simplify the setup and reduce the need for device retraction, allowing for high-quality X-ray imaging without hindering the particle beam irradiator's displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If X-ray imaging devices are arranged in the treatment space with arms, then X-ray images can be acquired, but the apparatus becomes complicated and treatment time is prolonged due to arrangement and retraction operations
Solution Approach 1:
The movable floor is divided into multiple floor members (first floor member and second floor member) that can be independently positioned and configured. This segmentation allows the floor structure itself to serve multiple functions including X-ray transmission without requiring separate imaging device arms
Solution Approach 2:
The movable floor structure is designed to serve multiple functions: it provides patient support, enables technician access, and facilitates X-ray transmission. By making the floor itself X-ray transmittable through the removable first floor member, the system eliminates the need for separate X-ray imaging device arms
2Measurement precision
If arms with X-ray imaging devices are used, then X-ray images can be acquired, but treatment time is prolonged by arrangement and retraction time
Solution Approach 1:
The first floor member is pre-configured to be removable from the movable floor structure. This preliminary preparation allows for rapid removal and installation without requiring complex assembly operations during treatment, thereby reducing treatment time while maintaining X-ray imaging capability
Solution Approach 2:
The movable floor structure is designed with dynamic characteristics, allowing the first floor member to be quickly removed when X-ray imaging is needed and restored when not needed. This dynamic configuration enables rapid adaptation between different treatment phases without time-consuming repositioning operations
3Measurement precision
If the movable floor is made of X-ray transmittable material, then high-quality X-ray images can be acquired, but the floor structure may compromise strength or stability
Solution Approach 1:
The floor structure is segmented into a first floor member made of X-ray transmittable material and a second floor member that provides structural support. This segmentation allows each component to be optimized for its specific function: the first member for X-ray transmission and the second member for mechanical strength
Solution Approach 2:
The movable floor employs a composite structure combining different materials with complementary properties. The first floor member uses X-ray transmittable materials while the second floor member uses structurally sound materials, creating a composite system that achieves both X-ray imaging capability and structural integrity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration simplifies the apparatus structure, shortens treatment time, and enables the acquisition of high-quality X-ray images for precise lesion positioning without the need for complex electronic position control mechanisms.
Implementation Method 1
an X-ray detector installed at a position where the X-ray detector faces the X-ray generator and detects X-rays transmitted through the first floor member
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
A particle beam therapy device 10 is provided with: a particle beam irradiator 16 for emitting a particle beam B; a movable support body 21 for supporting the particle beam irradiator 16; a plurality of moving boards 37 that are provided on a trajectory of displacement of the particle beam irradiator 16 and are configured so as to form a substantially horizontal envelope surface below a tabletop 18 on which a body to be irradiated 13 is placed, at least one of the moving boards being provided with a first floor member and a second floor member having a greater X-ray transmittance than that of the first floor member; X-ray generators 27a provided to a non-collision area 31 in which the X-ray generators do not collide with the particle beam irradiator 16, the support body 21, or any of the moving boards 37; and X-ray detectors 27b that are installed at positions facing the X-ray generators 27a and that detect X-rays transmitted through the first floor member.