X-ray Fluoroscopic Imaging Arm Interference Avoidance
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Solution Overview
Problem
Conventional X-ray fluoroscopic imaging apparatuses face interference issues between arms, limiting simultaneous imaging from certain directions, which increases the number of contrast agent administrations and extends imaging time.
Innovation Solution
The apparatus incorporates a base moving mechanism and controller to reposition and adjust the second arm to avoid interference with the first arm, allowing simultaneous imaging from directions where interference occurs, by moving the base unit and changing the angle of the second arm to predetermined positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If two arms are used for simultaneous imaging from different directions, then imaging efficiency is improved, but arm interference occurs at certain positions (Cranial and Caudal)
Solution Approach 1:
The patent makes the base of the second arm movable instead of fixed, allowing dynamic repositioning to avoid interference with the first arm. The base moving mechanism enables the second arm to be relocated along the patient table's long axis, transforming a static interference problem into a dynamic solution where arms can be positioned optimally for each imaging direction.
Solution Approach 2:
The patent adds a new degree of freedom by moving the second arm's base along the long axis direction of the patient table. This dimensional change allows the second arm to be positioned in regions where the first arm does not interfere, enabling simultaneous imaging from Cranial and Caudal directions that were previously inaccessible with fixed base configurations.
2Ease of operation
If imaging is performed separately at Cranial and Caudal positions using one arm, then arm interference is avoided, but the number of contrast agent administrations increases and imaging time extends
Solution Approach 1:
By making the second arm's base movable, the system can dynamically reposition the second arm to non-interfering locations for Cranial and Caudal imaging. This enables both arms to operate simultaneously without collision, reducing the number of sequential imaging steps and thereby decreasing total imaging time and contrast agent administrations.
3Adaptability or versatility
If the base of the second arm is made movable to avoid interference, then simultaneous imaging from all directions becomes possible, but device complexity increases
Solution Approach 1:
The base moving mechanism serves multiple functions: it enables the second arm to avoid interference with the first arm, allows positioning for all eight imaging directions including Cranial and Caudal, and maintains operational flexibility. This multi-functionality justifies the added complexity by providing comprehensive imaging capability.
Solution Approach 2:
The controller automatically manages the base movement and arm positioning based on the desired imaging direction, eliminating the need for manual repositioning by operators. The system self-adjusts to optimal configurations, reducing operational complexity despite the added mechanical 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
This configuration reduces the number of contrast agent administrations and shortens imaging time by enabling simultaneous imaging from directions where arms previously interfered, while maintaining image quality and user usability.
Implementation Method 1
a first arm (1) configured to support a first X-ray source (11); a second arm (2) including a second arm part (2a) and a base unit (2b), the second arm part (2a) being held by a base (8) configured to support a second X-ray source (20)
Data Source
AI summary
This X-ray fluoroscopic imaging apparatus includes a first arm, a second arm, and a controller. The controller is configured to move a second base to move the second arm to a position where the second arm does not interfere with the first arm when the first arm and the second arm interfere with each other and change the angle of the second arm so that the angle of the second arm becomes a predetermined imaging angle to arrange the first arm and the second arm at positions where the first arm and the second arm do not interfere with each other to perform imaging.