Trocar Position Overlay for Eye Surgery Microscopes
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Solution Overview
Problem
Current eye surgery methods rely heavily on surgeon experience for accurate placement of trocars, leading to increased operation time and risk of retinal damage due to visual determination of trocar positions, which can be inaccurate and time-consuming.
Innovation Solution
An eye surgery system that includes an operating microscope with a camera and data memory to store predetermined trocar positions, a pattern generator to create visual overlays on the microscope image, and a display apparatus to accurately depict trocar positions relative to eye-specific features, reducing the need for manual marking and enhancing precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If surgeon determines trocar positions visually during operation, then flexibility in surgical approach is maintained, but positioning accuracy decreases and operation time increases
Solution Approach 1:
The system performs preliminary determination of trocar positions by capturing a preoperative image of the eye and calculating optimal insertion points before the surgical intervention begins. This advance preparation eliminates the need for time-consuming visual determination during the operation while ensuring high positioning accuracy through computational algorithms.
Solution Approach 2:
The system creates a digital copy of the eye's surface features from a preoperative image and uses this replicated model to determine trocar positions. By working with the copied image data rather than relying on real-time visual assessment, the system achieves precise positioning without adding operation time.
2Productivity
If manual marking tools are used to determine trocar positions, then surgical flexibility is preserved, but additional work steps are introduced increasing operation length
Solution Approach 1:
The system replaces manual mechanical marking tools and procedures with an automated computational system. A camera captures the eye's surface, a processor calculates optimal trocar positions using algorithms, and a display shows the determined positions. This substitution eliminates the need for physical marking tools and the complex manual procedures associated with them, thereby improving surgical efficiency without increasing device complexity.
3Measurement precision
If visual determination of trocar angle position is used, then real-time adjustment capability is maintained, but determination accuracy decreases and time outlay increases
Solution Approach 1:
The system performs self-service by automatically calculating and determining the precise angle positions of trocars relative to eye-specific features. The computational algorithm independently analyzes the captured eye image, identifies anatomical landmarks, and computes optimal insertion angles without requiring surgeon intervention or visual estimation, thereby reducing surgeon workload while maintaining high accuracy.
Data Source
AI summary
An eye surgery system includes an operating microscope having at least one camera, a data memory, a pattern generator, and a display apparatus. The operating microscope presents a microscope image of an eye, and the at least one camera records a camera image of the eye. The data memory stores data that represent at least one predetermined position, relative to the eye, of a trocar to be inserted into the eye. The pattern generator generates a pattern representing the predetermined position of the trocar on the basis of the data stored in the data memory and the camera image recorded by the camera, and the display apparatus overlays the pattern produced by the pattern generator on the microscope image of the eye.