Artificial Eye Lens Support Structure with Scleral Fixation
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Solution Overview
Problem
Existing methods for supporting artificial eye lenses in the eyeball often result in warped or improperly positioned lenses, leading to insufficient vision and increased risk of infection due to suturing, especially when the capsular sac is damaged or cannot accommodate the lens.
Innovation Solution
A support structure featuring an arc-shaped frame with support parts and fixing parts that are inserted into the sclera, allowing the artificial eye lens to be securely positioned without the need for suturing, simplifying the surgical procedure and reducing infection risk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the artificial eye lens is fixed to the sclera using suturing threads, then the lens can be supported in the eyeball, but bacteria can enter the eyeball through the threads causing infection
Solution Approach 1:
The invention extracts and eliminates the suturing thread component from the fixation system. Instead of using threads that penetrate the sclera and create infection pathways, the patent employs a fixation structure that anchors the lens holder directly to the sclera through integrated fixation protrusions that engage with the scleral tissue without requiring external sutures, thereby removing the infection vector while maintaining fixation stability
Solution Approach 2:
The invention introduces a fixation structure as an intermediary component between the lens holder and the sclera. This fixation structure includes fixation protrusions that mechanically engage with the scleral tissue, serving as a mediator that provides stable anchoring without requiring penetrating sutures. The intermediary structure distributes mechanical stress and creates a secure connection while maintaining the integrity of the scleral barrier against infection
2Reliability
If a thin film is used to substitute for the capsular sac and fixed to the ciliary body with threads, then the artificial eye lens can be supported, but the process becomes very difficult and time-consuming
Solution Approach 1:
The invention segments the intraocular lens system into distinct functional components: a lens holder that retains the artificial lens, a fixation structure with integrated fixation protrusions for scleral anchoring, and support parts for capsular sac engagement. This segmentation allows each component to be optimized for its specific function and enables simpler, more rapid assembly during surgery compared to complex threaded fixation of thin films
Solution Approach 2:
The invention merges the lens holder and fixation structure into an integrated unit where the fixation protrusions are built-in components of the lens holder itself. This merging eliminates the need for separate threading operations to attach a fixation structure to a thin film substitute, as the fixation capability is inherent to the lens holder design, significantly reducing surgical time and complexity
3Reliability
If the artificial eye lens is inserted into a damaged or non-functional capsular sac, then the lens cannot be properly positioned or supported, but traditional methods require complex threading and knotting procedures
Solution Approach 1:
The invention enables the lens holder to self-anchor to the sclera through its integrated fixation protrusions that automatically engage with the scleral tissue upon insertion. The support parts of the lens holder self-adjust to engage with the capsular sac or ciliary body structures. This self-service mechanism eliminates the need for complex manual threading and knotting procedures, allowing proper lens positioning even in damaged capsular sac conditions through simple insertion and automatic anchoring
Solution Approach 2:
The invention incorporates preliminary action by pre-forming the fixation protrusions and support parts as integral components of the lens holder before surgery. The fixation protrusions are pre-configured to engage with the sclera, and the support parts are pre-shaped to interact with capsular sac structures. This preliminary preparation eliminates the need for complex intraoperative threading and knotting, reducing procedural complexity while ensuring accurate lens positioning in challenging cases
Data Source
AI summary
The present disclosure relates to a support structure including a frame extending in an arc shape concentric with a lens of the artificial eye lens, having an opening portion therein, and disposed adjacent to a rim of the lens of the artificial eye lens or disposed to support a rim of one side surface of the lens, a plurality of support parts disposed to be spaced apart from one another in a circumferential direction of the frame and configured to support the artificial eye lens to prevent the artificial eye lens from separating from the support structure, and a plurality of fixing parts extending outward from the frame in a diameter direction of the frame and having tips inserted and fixed into a tunnel formed in a sclera of the eyeball.