X-ray Diagnostic Apparatus Collision Avoidance
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Solution Overview
Problem
Existing X-ray diagnostic apparatuses face challenges in preventing collisions with devices projecting from the subject during auto-positioning, leading to increased labor and time in manual positioning, which is not limited to medical image diagnostic systems but also affects standalone X-ray diagnostic apparatuses.
Innovation Solution
The implementation of a system that includes a first interference determination area set based on the image of a device projecting from the subject, with the holding device controlling the movement of the imaging unit to restrict it within this area, preventing collisions and optimizing positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If auto-positioning is performed without reference to the device projecting from the subject, then positioning speed is improved, but collision with the device occurs
Solution Approach 1:
The system performs preliminary detection of the device projecting from the subject before auto-positioning begins. The first interference determination area is pre-calculated based on the device position obtained from X-ray images, allowing the holding device to adjust its movement path in advance to avoid collision while maintaining efficient auto-positioning.
Solution Approach 2:
The system continuously monitors the position of the device projecting from the subject using X-ray imaging during the positioning process. This feedback mechanism allows real-time adjustment of the holding device's movement to prevent collision, enabling the system to maintain high positioning speed while ensuring safety through dynamic position verification.
2Object-affected harmful factors
If manual positioning is performed with attention to the device position, then collision prevention is improved, but labor and time increase
Solution Approach 1:
The system performs automatic detection and calculation of the interference determination area without requiring manual intervention. The processing circuitry automatically obtains device position from X-ray images, calculates the first interference determination area, and controls the holding device's movement, eliminating the need for manual positioning while preventing collision.
Solution Approach 2:
The system replaces manual mechanical positioning with an automated control system that uses X-ray imaging and computer-based calculations to determine safe movement paths. The processing circuitry substitutes human operators in monitoring device position and controlling the holding device, reducing both labor and positioning time while maintaining collision prevention.
3Measurement precision
If the first interference determination area is set based on X-ray images, then collision detection accuracy is improved, but system complexity increases
Solution Approach 1:
The system uses the existing X-ray imaging function for dual purposes: both for medical imaging and for detecting the position of the device projecting from the subject. The same X-ray generator and detector used for medical procedures are utilized to obtain device position information, eliminating the need for separate detection hardware and reducing system complexity.
Solution Approach 2:
The system creates a virtual representation of the device position and interference area through image processing of X-ray images. Instead of physical sensors, the processing circuitry generates a digital model of the first interference determination area based on the captured X-ray images, allowing accurate collision detection without additional physical 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 solution effectively prevents collisions with projecting devices, reduces labor and time in positioning, and ensures safety and efficiency in medical procedures by setting optimal interference determination areas without additional sensors or jigs.
Implementation Method 1
The X-ray generator radiates X-rays to the subject
Data Source
AI summary
According to one embodiment, an X-ray diagnostic apparatus includes a couch, an imaging unit, and processing circuitry. The couch includes a couch top on which a subject lies. The imaging unit includes an X-ray generator, an X-ray detector, and a holding device. The holding device movably holds the X-ray generator and the X-ray detector. The processing circuitry generates an X-ray image of the subject, based on an output of the X-ray detector, sets a first interference determination area including a device projecting from the subject, based on an image of the device included in the X-ray image, and controls the holding device such that movement of the imaging unit is restricted in the first interference determination area.