Blade-Scissors Instrument for Vitreoretinal Membrane Cutting
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Solution Overview
Problem
Current cutting apparatus for vitreoretinal surgery require continuous tool exchange during operations, leading to time loss and increased eye trauma due to the need for separate tools for membrane cutting on the retina surface and inside the vitreous.
Innovation Solution
Development of a single blade-scissor instrument with sharp inner and outer edges that functions as both a scissors and a blade, allowing for simultaneous cutting and incision without the need for tool exchange, and optionally incorporating a third leg for forceps functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two separate tools (scissors and MVR blade) are used for membrane cutting and incision, then each tool can be optimized for its specific function, but continuous tool exchange is required leading to time loss and increased eye trauma
Solution Approach 1:
The patent combines the functions of two separate surgical tools (scissors for cutting and MVR blade for incision) into a single integrated instrument. The blade-scissors features both cutting edges (like scissors) and sharp pointed edges (like MVR blade) on the same instrument, allowing the surgeon to perform both incision and cutting operations without exchanging tools, thereby eliminating time loss and reducing eye trauma from repeated insertions.
Solution Approach 2:
The blade-scissors is designed as a universal instrument that can perform multiple surgical functions: it can make incisions with its sharp pointed edges (MVR blade function) and cut membranes with its cutting edges (scissors function). This multi-functionality eliminates the need for separate specialized tools and continuous tool exchange during vitreoretinal surgical operations.
2Adaptability or versatility
If two separate tools are used for membrane cutting and incision, then each tool can be optimized for its specific function, but continuous tool exchange increases eye trauma
Solution Approach 1:
The patent combines the functions of two separate surgical tools (scissors for cutting and MVR blade for incision) into a single integrated instrument. The blade-scissors features both cutting edges (like scissors) and sharp pointed edges (like MVR blade) on the same instrument, allowing the surgeon to perform both incision and cutting operations without exchanging tools, thereby eliminating time loss and reducing eye trauma from repeated insertions.
Solution Approach 2:
The blade-scissors is designed as a universal instrument that can perform multiple surgical functions: it can make incisions with its sharp pointed edges (MVR blade function) and cut membranes with its cutting edges (scissors function). This multi-functionality eliminates the need for separate specialized tools and continuous tool exchange during vitreoretinal surgical operations.
3Loss of time
If a single instrument combines both scissors and blade functions, then tool exchange is eliminated saving time, but the instrument structure becomes more complex
Solution Approach 1:
The patent combines the functions of two separate surgical tools (scissors for cutting and MVR blade for incision) into a single integrated instrument. The blade-scissors features both cutting edges (like scissors) and sharp pointed edges (like MVR blade) on the same instrument, allowing the surgeon to perform both incision and cutting operations without exchanging tools, thereby eliminating time loss and reducing eye trauma from repeated insertions.
Data Source
Figure 1a~1b
AI summary
The invention relates particularly to the embodiment used for cleaning the membranes on the surface of the retina and inside the vitreous during vitreoretinal eye surgical operations.