Radiographic Imaging Apparatus Joystick Control Under Sterilization Cover
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Solution Overview
Problem
The existing radiographic imaging apparatuses face difficulties in performing precise selection, playback, and frame feeding operations of moving images due to the complexity of operating the tiltable lever, especially when sterilization covers obstruct access, leading to unintended frame feeds during procedures like intravascular treatments.
Innovation Solution
Incorporating a joystick mechanism with a tiltable lever and a rotation input portion that allows for precise tilting and rotating operations, enabling easy selection, playback, and frame feeding of moving images, even when the operation unit is covered by a sterilization cover, through a multifunctional device with joystick, rotary encoder, and push switch functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a tiltable lever is used for selection and playback operations, then the operation unit can be covered with a sterilization cover, but the operator cannot finely operate the lever due to the cover and may unintentionally perform multiple frame feeds
Solution Approach 1:
The operation unit is divided into two independent control mechanisms: a tiltable lever for selection and playback operations, and a rotation input portion for frame feeding operations. This segmentation allows each component to have dedicated functionality, preventing unintended operations while maintaining precision under the sterilization cover constraint
Solution Approach 2:
The rotation input portion acts as an intermediary control mechanism between the operator and the frame feeding function. By requiring deliberate rotation of this separate component, the system ensures that frame feeding operations are intentional and precise, preventing accidental multiple frame feeds when the lever is covered
2Measurement precision
If the lever is tilted finely for frame feeding operations, then precise frame feeding can be achieved, but the operation becomes complex and error-prone when covered with a sterilization cover
Solution Approach 1:
The control function is segmented into two distinct inputs: the tiltable lever handles selection and playback, while the rotation input portion handles frame feeding. This separation simplifies each individual operation and reduces overall complexity by assigning specific functions to specific components, making it easier to operate precisely under the sterilization cover
Solution Approach 2:
Different parts of the operation unit have different operational characteristics optimized for their specific functions. The rotation input portion is specifically designed with rotational movement properties suited for precise frame feeding, while the lever is optimized for selection and playback operations, allowing each component to operate at its optimal precision level
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 effortless selection, playback, and frame feeding operations of moving images, preventing unintended frame feeds and ensuring smooth medical procedures by allowing operators to perform operations blindly, maintaining precision and ease of use.
Implementation Method 1
an imaging system configured to perform continuous imaging at a predetermined frame rate by detecting radiation by a radiation detection unit, the radiation being emitted from a radiation irradiation unit and passed through a subject
Data Source
AI summary
Provided is a radiographic imaging apparatus capable of easily and properly performing a selection operation or a playback operation of the moving image and a frame feeding operation of the moving image. An operation unit is provided with a tiltable lever and a rotation input portion provided at an upper end of the lever. The image processing unit performs a selection operation or a playback operation of the moving image to be displayed on the display unit according to a tilting operation of the lever, and performs a frame feeding operation of the moving image to be displayed on the display unit according to a rotating operation of the rotation input portion.