Ophthalmic Imaging Control for Automatic Eye Centering
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Solution Overview
Problem
Existing medical observation systems require complicated manual adjustments to maintain the center position of a subject eye in the display during eye surgery due to pressure changes or patient movement, which can be inconvenient for surgeons.
Innovation Solution
A medical control device that includes determination circuitry to identify the presence of surgical tools in the image, and a state controller to automatically adjust the imaging field of view based on the absence of these tools, maintaining the eye's position in the display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the doctor manually adjusts the imaging field of view to maintain the center position of the subject eye in the display, then the eye position can be maintained, but the operation becomes complicated and inconvenient
Solution Approach 1:
The system automatically detects the subject eye position and adjusts the imaging field of view without requiring manual intervention from the doctor. The control device monitors the captured images and autonomously modifies display parameters to keep the eye centered, making the system self-regulating and eliminating complicated manual operations.
Solution Approach 2:
The system continuously captures images of the subject eye, analyzes the eye position in each frame, and uses this feedback information to automatically adjust the imaging field of view. This closed-loop control ensures the eye remains centered in the display while eliminating the need for manual adjustment operations.
2Reliability
If the doctor operates the medical observation system to change the imaging field of view, then the eye position can be maintained, but the work becomes complicated
Solution Approach 1:
The control device autonomously performs the function of maintaining eye position by detecting eye movement and automatically adjusting the imaging field of view parameters. This eliminates the need for the doctor to perform complex operational adjustments while ensuring reliable eye position stability throughout the procedure.
Solution Approach 2:
The system replaces manual mechanical adjustment operations with automated image processing and electronic control. The control device uses image analysis algorithms to detect eye position changes and electronically adjusts the imaging field of view, substituting complex manual mechanical operations with automated computational control.
3Ease of operation
If automatic adjustment is implemented, then the operation becomes simpler, but the system complexity increases
Solution Approach 1:
The control device integrates multiple functions into a single system: it captures images, analyzes eye position, determines whether adjustment is needed, and automatically modifies the imaging field of view. This multi-functional integration simplifies the user experience while consolidating system complexity into a unified control architecture rather than adding separate complex components.
Solution Approach 2:
The system merges the image capture function, eye position detection function, and imaging field of view control function into an integrated automated system. By combining these functions that were previously separate manual operations into a single automated workflow, the system improves ease of operation while managing complexity through functional integration.
Data Source
AI summary
A medical control device includes: determination circuitry configured to determine whether or not a specific surgical tool is included in a captured image based on an image signal generated by an imaging device configured to capture an image of a subject eye; image generation circuitry configured to generate an image for display based on the image signal; and a state controller configured to control, in a case where the determination circuitry determines that the specific surgical tool is not included in the captured image, operation of the image generation circuitry or an imaging field of view by the imaging device so as to maintain a state of the subject eye in the image for display.