Haptic Optic Management System for IOL Delivery
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Solution Overview
Problem
Current ophthalmic surgery techniques face challenges in reducing post-operation healing time due to the size and functionality issues of insertion tools for intraocular lenses (IOLs), particularly as incision sizes decrease, affecting the efficient delivery and deployment of IOLs within the eye.
Innovation Solution
A haptic optic management system integrated into an insertion tool, which includes a drive system, plunger, and nozzle, utilizes a clip and elastic plate to fold and deploy IOLs efficiently through a small incision, allowing for precise delivery and stabilization of the lens within the eye.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If the incision size is reduced to decrease post-operation healing time, then the healing time is reduced, but the size and functionality of the insertion tool becomes problematic
Solution Approach 1:
The haptic optic management system employs a nested structure where the IOL is folded and stored within the insertion tool's housing. The haptics are tucked inside the optic, which is itself contained within the housing. This nested arrangement allows the entire IOL assembly to be delivered through a small incision while maintaining full functionality of the insertion tool.
Solution Approach 2:
The system transitions from a static stored state to a dynamic deployment state. The IOL is held in a folded configuration during insertion, then unfolds and deploys haptics after insertion. The spring mechanism provides dynamic force to evert the haptics outward, transforming the IOL from a compact inserted form to a functional deployed form within the eye.
2Duration of action of stationary object
If the incision size is reduced to decrease post-operation healing time, then the healing time is reduced, but the delivery and deployment of IOLs becomes less efficient
Solution Approach 1:
The IOL is pre-folded and pre-positioned within the insertion tool's housing before insertion. The haptics are pre-tucked inside the optic, and the spring is pre-loaded to provide deployment force. This preliminary preparation allows for efficient delivery through the small incision without requiring complex manipulation during the surgical procedure.
Solution Approach 2:
The spring mechanism automatically everts the haptics outward after the IOL is inserted into the eye. The system uses the stored elastic energy in the spring to self-deploy the haptics without requiring additional manual manipulation, thereby maintaining high delivery efficiency despite the reduced incision size.
3Productivity
If a plunger is used to force the IOL out of the insertion tool, then the IOL can be delivered, but the haptic folding and tucking becomes complex
Solution Approach 1:
The haptic folding and tucking functions are extracted from the plunger mechanism and integrated into the housing structure. The spring mechanism is separate from the plunger, providing haptic deployment independently. This separation simplifies the plunger's function to only pushing the IOL forward, while the housing and spring handle the complex haptic folding and tucking operations.
Solution Approach 2:
The spring acts as an intermediary between the IOL insertion and haptic deployment. When the plunger forces the IOL out of the nozzle, the spring is released and mediates the eversion of the haptics. This intermediary mechanism decouples the insertion action from the haptic deployment, allowing each function to be optimized independently.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This system enables the efficient delivery and stabilization of IOLs through small incisions, reducing healing time and improving the precision of IOL placement, while minimizing the risk of complications associated with smaller incisions.
Implementation Method 1
an elastic plate, herein the clip engages the plate to prevent the plate from returning to an original position
Implementation Method 2
The clip body may include a spring portion and opposing gripping portions that extend from the spring portion
Data Source
Figure 1
Figure 2A~2B
Figure 3
AI summary
Systems, methods, and devices for inserting an intraocular lens (IOL) assembly into an eye may be provided. In an exemplary aspect, the present disclosure is directed to a haptic optic management system. The haptic optic management system may include a housing. The haptic optic management system may further include a plate, wherein the plate is disposed within the housing. The haptic optic management system may further include a clip that engages the plate in the housing, wherein the clip comprises a clip body and a plurality of legs that extend from the clip body.