Cataract Surgery Microscopy System with Adjustable Ring Pattern
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Solution Overview
Problem
Conventional cataract surgery methods often result in complications due to the lack of precision in making incisions in the capsule sac, as they are typically performed without visual guidance, leading to zigzag or irregular shapes that do not match the diameter of the artificial lens.
Innovation Solution
A cataract surgery microscopy system that includes a pattern generator to produce a ring pattern superimposed on the image of the capsule sac and iris, allowing the surgeon to align the incision along a circular, oval, or polygon pattern, ensuring the incision matches the diameter of the artificial lens, thereby reducing the risk of complications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the surgeon makes the incision by naked eye without visual guidance, then the operation is simpler and faster, but the incision shape becomes irregular (zigzag) and does not match the lens diameter
Solution Approach 1:
A projection device is introduced as an intermediary between the surgeon and the capsule sac. The device projects a circular reference pattern onto the capsule sac, serving as a visual mediator that guides the surgeon in making a precise circular incision. This intermediary pattern enables the surgeon to achieve accurate incision shaping without complicating the surgical procedure.
Solution Approach 2:
The projection device uses optical patterns (circular lines) projected onto the capsule sac to provide visual guidance. The projected circular pattern serves as a color/visual cue that helps the surgeon identify the correct incision path and shape, ensuring the incision matches the lens diameter while maintaining ease of operation.
2Productivity
If the incision diameter is not adapted to the lens diameter, then the surgical process is faster, but long-term complications are more likely to occur
Solution Approach 1:
The projection device is used to pre-mark the optimal incision circle on the capsule sac before the actual incision is made. The circular reference pattern is projected in advance, allowing the surgeon to quickly and accurately create an incision that is pre-planned to match the lens diameter, thereby ensuring both speed and reliability.
Solution Approach 2:
The projection device provides real-time visual feedback to the surgeon during the incision process. The circular pattern serves as a continuous reference that feedbacks the correct incision path and size, ensuring the incision diameter is precisely adapted to the lens diameter, thus improving long-term reliability while maintaining surgical efficiency.
3Reliability
If a circular incision is made with diameter adapted to the lens, then long-term complications are reduced, but the surgeon needs additional tools and guidance systems
Solution Approach 1:
The projection device acts as a simple intermediary tool that adds minimal complexity to the surgical system. It projects a circular pattern onto the capsule sac, providing the necessary guidance without requiring complex mechanical or electronic systems. The device integrates smoothly with the existing microscopy setup, enhancing reliability while keeping the overall system complexity low.
4Device complexity
If the incision is made without pattern guidance, then the device complexity is lower, but the measurement precision of incision diameter is insufficient
Solution Approach 1:
The projection device uses optical patterns (circular lines) projected onto the capsule sac to provide visual measurement guidance. The projected circular pattern serves as a visual scale and reference that enables the surgeon to accurately measure and control the incision diameter, achieving precise measurement without requiring complex measurement instruments or systems.
Data Source
AI summary
A cataract surgery microscopy system is provided which comprises a microscopy optics for producing an image of an object plane of the microscopy optics and a pattern generator for generating a pattern superimposed on the image, said pattern generator being provided to generate a circular pattern having an adjustable diameter.