Ophthalmic Laser Positioning via Multi-Angle Recording
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Solution Overview
Problem
Existing ophthalmological laser therapy systems lack a suitable mechanism for accurately and efficiently positioning the patient's eye vis-à-vis the optical opening, which is essential for precise laser therapy.
Innovation Solution
A positioning device comprising two recording units that provide observation data from different angles, a displacement unit for adjusting the eye's position, and a control unit to generate control commands based on the recorded data, allowing for accurate and automatic positioning of the eye.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a contact element is used to immobilize the eye, then positioning stability is improved, but positioning precision and alignment accuracy deteriorate due to lack of automated control
Solution Approach 1:
The system uses recording units to capture eye position data and feeds this information back to the control unit, which automatically adjusts the displacement unit to achieve precise alignment. This closed-loop feedback mechanism ensures both stability during immobilization and high positioning precision through automated correction.
Solution Approach 2:
The patent replaces manual mechanical positioning with an automated system combining optical recording units, computational control algorithms, and motorized displacement mechanisms. This substitution enables precise alignment through electronic control rather than manual mechanical adjustment.
2Device complexity
If manual positioning is used, then device complexity is reduced, but positioning time and productivity deteriorate
Solution Approach 1:
The positioning system performs self-alignment through automated recording and control mechanisms. The recording units automatically capture eye position, the control unit processes this data, and the displacement unit autonomously adjusts positioning, eliminating the need for complex manual intervention while maintaining high positioning speed.
3Device complexity
If observation is performed coaxially with therapy beam path, then device complexity is minimized, but positioning control capability is lost
Solution Approach 1:
The system introduces an additional spatial dimension for observation by positioning recording units at angles different from the coaxial therapy beam path. This angular separation enables independent positioning control while maintaining relatively simple optical system architecture through strategic geometric arrangement.
Data Source
AI summary
An ophthalmological laser therapy positioning device which facilitates accurate positioning of the laser therapy system vis-à-vis the patient's eye. The positioning device includes a first and a second recording unit, which provide recording data from different recording directions, a displacement unit that displaces the relative position of the eye vis-à-vis an optical opening of the laser therapy system on the basis of control commands, and a control unit that generates control commands on the basis of the recording data. The positioning device furthermore may include a display unit for displaying the recording data and an input unit for inputting input data, the control unit in this case generates control commands on the basis of the recording data and/or on the basis of the input data and to provide the control commands to the displacement unit. Corresponding positioning methods are also included.