Intraocular Lens Punch for Suture Hole Repositioning
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Solution Overview
Problem
Current methods for repositioning dislocated single-piece intraocular lenses are risky and costly, often requiring complete explantation and replacement, posing significant surgical challenges and increased patient recovery time.
Innovation Solution
An intraocular lens punch with a movable jaw that creates a hole in the lens, allowing securement with sutures to reposition the lens without full explantation, using a handpiece with a movable jaw and actuator to form a hole in the lens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complete explantation and replacement of dislocated lens is performed, then lens repositioning is achieved, but surgical risk and complexity increase
Solution Approach 1:
The invention extracts only the necessary portion of the lens (creating a hole) rather than removing the entire lens. The punch device creates a localized opening in the dislocated lens to allow suture passage, enabling repositioning while preserving the majority of the lens structure, thereby reducing surgical risk compared to complete explantation
Solution Approach 2:
The invention applies local intervention by creating a hole at a specific location on the lens rather than affecting the entire lens. The punch device concentrates surgical action to a localized area, allowing suture attachment for repositioning while leaving the rest of the lens intact, thus minimizing surgical complexity and risk
2Reliability
If complete explantation and replacement of dislocated lens is performed, then lens repositioning is achieved, but surgical cost increases
Solution Approach 1:
The invention extracts only the necessary portion of the lens (creating a hole) rather than removing the entire lens. This localized intervention allows the existing lens to be retained and repositioned, avoiding the cost of procuring and implanting a completely new intraocular lens, thereby reducing surgical cost
Solution Approach 2:
The invention recovers and retains the dislocated lens by creating a hole for suture attachment, rather than discarding it through complete explantation. This approach allows the original lens to be reused after repositioning, eliminating the need to purchase a replacement lens and reducing overall surgical cost
3Reliability
If complete explantation and replacement of dislocated lens is performed, then lens repositioning is achieved, but patient recovery time increases
Solution Approach 1:
The invention extracts only the necessary portion of the lens (creating a hole) rather than removing the entire lens. This minimally invasive approach causes less trauma to the eye and surrounding tissues, leading to reduced patient recovery time compared to complete explantation and replacement
Solution Approach 2:
The invention performs preliminary action by creating a hole in the dislocated lens to facilitate suture attachment, enabling minimally invasive repositioning. This preliminary modification allows the lens to be repositioned without full removal, reducing surgical trauma and accelerating patient recovery
4Reliability
If complex surgical skills are required for lens repositioning, then lens rescue is possible, but surgical complexity increases
Solution Approach 1:
The punch device is designed to create a hole in the lens that directly accommodates suture passage. The device structure itself (with the post extending to close the gap between jaw legs) provides self-aligning features that guide the suture through the created hole, reducing the need for complex surgical maneuvers and techniques
Data Source
AI summary
An intraocular lens (IOL) punch includes a handpiece having an opening at a first end, a jaw comprising a first leg and a second leg joined at a first rod end of a rod, the rod extending into the opening and moveable relative to the handpiece to operate the jaw between an open position and a closed position, and a post attached to the first leg and extending toward the second leg, wherein in the open position there is a gap between the post and the second leg and in the closed position the post extends to the second leg closing the gap.