C-arm X-ray Apparatus with Integrated Laser Positioning Module
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Solution Overview
Problem
Current C-arm X-ray apparatuses lack surgical positioning and navigation functions, making it difficult for surgeons to accurately and efficiently locate lesions during minimally invasive procedures, which increases surgical risks and irradiation exposure.
Innovation Solution
A C-arm X-ray apparatus with a positioning module that includes a first and second planar motion mechanism, stainless steel balls for identification, and a laser tube for precise lesion targeting, allowing for accurate and fast positioning of lesions by superimposing calibration and perspective images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a C-arm X-ray apparatus is used to generate perspective images for observing tissues and organs, then visual information can be obtained to assist surgical positioning, but the apparatus lacks surgical positioning and navigation function itself, requiring additional intermediate processes
Solution Approach 1:
The patent combines the X-ray imaging function with surgical positioning and navigation functions into a single integrated system. The positioning module includes a laser tube that projects calibration patterns visible in both optical and X-ray images, allowing the system to automatically calculate positioning information by superimposing the calibration pattern from the perspective image with the pre-stored calibration image, thereby eliminating the need for separate positioning devices and intermediate processes.
Solution Approach 2:
The C-arm X-ray apparatus is enhanced to perform multiple functions: it generates perspective images for observation, displays calibration patterns for positioning, and automatically calculates surgical positioning information. This multi-functional design allows the single device to replace both traditional X-ray imaging equipment and separate surgical positioning systems.
2Measurement precision
If traditional surgical positioning methods are used without integrated navigation, then existing C-arm X-ray apparatus can be used, but surgical accuracy and efficiency are reduced due to lack of direct positioning capability
Solution Approach 1:
The system uses feedback by capturing the laser calibration pattern in the perspective image, comparing it with the pre-stored calibration image, and automatically calculating the positioning information. This closed-loop feedback mechanism ensures high positioning accuracy while reducing manual measurement errors and improving surgical efficiency.
Solution Approach 2:
The calibration image is pre-stored in the system before surgery begins. During the surgical procedure, the system only needs to capture the laser pattern and compare it with the pre-stored calibration data to quickly obtain positioning information, eliminating the need for time-consuming calibration processes during surgery.
3Object-affected harmful factors
If surgical positioning is performed without integrated navigation function, then simpler equipment can be used, but more irradiation exposure and surgical injuries occur due to reduced positioning accuracy
Solution Approach 1:
The system uses periodic X-ray imaging only when necessary to capture the laser calibration pattern and verify positioning, rather than continuous imaging. This reduces irradiation exposure while maintaining positioning accuracy by relying primarily on optical laser patterns for real-time positioning guidance.
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 accurate and rapid lesion positioning, improving surgical safety, reducing surgical time, and minimizing irradiation exposure by integrating surgical positioning and navigation functions into the C-arm X-ray apparatus.
Implementation Method 1
a laser tube, a driver and four connecting members; wherein the laser tube is circularly disposed between the first articulated bearing and the second articulated bearing
Implementation Method 2
An image output from the image intensifier is transmitted to a television camera in a photoelectric coupling manner to form a video signal
Implementation Method 3
An image output from the image intensifier is transmitted to a television camera in a photoelectric coupling manner
Data Source
AI summary
A C-arm X-ray apparatus with a surgical positioning and linear navigation function is provided. The apparatus includes a C-arm, an image enhancer, an X-ray tube, a support frame, a trolley, a monitor and a central controller. The image enhancer is disposed at one end of the C-arm, and the X-ray tube is disposed at the other end of the C-arm which is mounted on the support frame and capable of rotationally sliding along the support frame, the support frame is mounted on the trolley and capable of sliding horizontally along the trolley, and the monitor and the central controller are electrically connected with the image enhancer and the X-ray tube, where a positioning module is further disposed on the C-arm and cooperates with the image enhancer and the X-ray tube.