Movable Radiographic Detector Positioning With Electromagnetic Tags
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Solution Overview
Problem
Existing radiographic imaging devices face challenges in achieving precise alignment and positioning between the head and detector, limiting their application to specific body positions and preventing imaging in varied scenarios.
Innovation Solution
The implementation of a movable detector system with base stations and tags, utilizing signal transmission and reception to calculate relative positions and postures, enabling precise alignment and positioning through a controller-driven support assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed detector system is used, then the structure is simple and stable, but the imaging positions are limited and cannot adapt to varied body positions
Solution Approach 1:
The detector is made movable rather than fixed, allowing it to be positioned at different locations (e.g., under the patient's feet or behind their back) to accommodate various body positions and imaging scenarios, thus resolving the contradiction between adaptability and structural simplicity
Solution Approach 2:
The mechanical positioning system is replaced with an electromagnetic positioning system using base stations and tags. The base station transmits electromagnetic signals to tags on the detector and head, enabling automatic calculation of relative positions and postures without complex mechanical linkages, thus maintaining structural simplicity while achieving high adaptability
2Adaptability or versatility
If the detector is made movable to expand imaging scenarios, then the adaptability improves, but the alignment precision between head and detector becomes difficult to maintain
Solution Approach 1:
Manual or mechanical alignment methods are replaced with electromagnetic field-based positioning. The base station emits electromagnetic signals that are received by tags on both the head and detector, enabling precise calculation of spatial relationships and automatic alignment without relying on mechanical guides or manual adjustment
Solution Approach 2:
The system implements feedback control by continuously calculating the relative position and posture between the head and detector based on electromagnetic signal data. The controller uses this feedback information to guide the movable detector to the correct position, ensuring precise alignment is maintained even as the detector moves to different imaging locations
3Productivity
If traditional positioning methods are used, then the device structure remains simple, but the imaging speed and efficiency are reduced due to manual positioning
Solution Approach 1:
Manual positioning operations are replaced with automated electromagnetic positioning. The base station and tag system automatically calculates positions and guides the detector movement, eliminating time-consuming manual alignment procedures and significantly improving imaging speed and efficiency
Solution Approach 2:
The system performs preliminary positioning calculations and guidance before the actual imaging process. The controller calculates the required detector position and posture in advance based on the selected imaging scenario, and guides the detector to the correct position before radiation exposure begins, thus improving overall imaging efficiency
Data Source
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AI summary
A radiographic imaging device and a positioning method thereof are provided. The radiographic imaging device includes a head, a movable detector, at least one first base station and at least one tag. The first base station is configured to transmit a signal to the tag and receive a signal returned from the tag. In the present disclosure, the movable detector is used, which can be placed without being limited to a specific location. Therefore, the detector can perform the imaging at a plurality of positions, which effectively expands the application scenario of the radiographic imaging device. Furthermore, the base station and the tag are used to position the movable detector, such as to obtain the spatial position or even posture of the detector, which facilitates the radiographic imaging device to complete the position matching of the head and the movable detector (e.g., making the two meet a preset position relationship).