X-ray Apparatus Sliding Mechanism for Fine Magnification Control
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Solution Overview
Problem
Existing X-ray photographing apparatuses for dental clinics cannot finely adjust magnification power based on the size of the subject or environment, leading to deteriorated image quality and increased load and volume due to heavy rotary arms, limiting them to fixed magnification settings for both CT and panorama imaging.
Innovation Solution
An X-ray photographing apparatus with a rotating portion and actuating portion that includes a rotating unit, link unit, and driving unit, allowing for sliding motion through a simple link structure to adjust magnification power by changing the interval between the sensor and subject, reducing the load on the driving unit and compactly configuring the rotating portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a horizontal moving structure through a ball screw is used to move the rotary arm, then the magnification power can be adjusted, but the load of the motor is increased and the entire weight and volume of the rotary arm is increased
Solution Approach 1:
The patent replaces the traditional ball screw mechanical transmission system with a direct sliding mechanism. The rotary arm slides horizontally along guide rails directly driven by a motor, eliminating the ball screw, connection shafts, and associated mechanical components. This substitution dramatically reduces the weight and volume of the rotary arm assembly while maintaining the ability to adjust magnification power by changing the distance between the X-ray source and sensor.
2Adaptability or versatility
If a ball screw and connection shaft are used to move the rotary arm, then the magnification can be adjusted, but the manufacturing cost is increased
Solution Approach 1:
The patent extracts and removes the complex ball screw mechanism, connection shafts, and associated components from the system. By eliminating these expensive mechanical elements and retaining only the essential sliding function with guide rails and a motor, the manufacturing cost is significantly reduced while the core functionality of magnification adjustment is preserved.
3Device complexity
If only one set magnification power is used for CT and panorama imaging, then the device structure is simple, but the image quality is deteriorated depending on the size of the head of the subject
Solution Approach 1:
The patent implements a dynamic magnification adjustment system where the distance between the X-ray source and sensor can be continuously varied by sliding the rotary arm along guide rails. This dynamic adjustment capability allows the system to optimize magnification power according to the size of the subject's head, improving image quality for both CT and panorama imaging without requiring multiple fixed magnification settings or complex additional components.
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
Enables various and fine adjustments of magnification power for both panorama and CT imaging, improving image quality, reducing the volume of the rotating portion, and lowering manufacturing costs through a simple structure that maintains the distance between the X-ray source and sensor while adjusting the subject-to-sensor distance for optimal magnification.
Implementation Method 1
transmits a predetermined amount of X-ray through a tooth portion, which is a body portion to be photographed, senses an intensity of the transmitted X-ray
Data Source
AI summary
The present invention relates to an X-ray photographing apparatus and method capable of variously and finely adjusting a magnification power by sliding a rotating portion supporting an X-ray source portion and a sensor portion facing each other in a state in which an interval between the X-ray source portion and the sensor portion is maintained to change an interval between the sensor portion and a head of a subject to be examined. The X-ray photographing apparatus includes: a rotating portion including an X-ray source portion and a sensor portion facing each other and provided at a shaft through a moving means so as to be movable in an X-ray irradiation direction; and an actuating portion adjusting a magnification power by changing an interval between the sensor portion and a head of a subject to be examined in a state in which an interval between the X-ray source portion and the sensor portion is maintained.