Removable Cap Actuation for IOL Cartridge Folding
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Solution Overview
Problem
Existing intraocular lens (IOL) delivery systems lack efficient mechanisms for folding and delivering IOLs during cataract surgery, often requiring manual manipulation and risking user errors due to improper sequencing.
Innovation Solution
A removable cap actuation system for an IOL cartridge that folds the IOL upon removal, integrating a sliding mechanism within the cartridge to manipulate the lens upon cap removal, allowing for standardized attachment to various handpieces with different drive mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual manipulation is used for IOL folding and delivery, then the system can be simple in structure, but user errors increase due to improper sequencing
Solution Approach 1:
The cap is pre-configured with actuator-engaging features that automatically initiate the folding sequence when removed. The actuator is pre-positioned to engage specific folding elements in the correct sequence, ensuring proper IOL folding before delivery without requiring manual manipulation steps.
Solution Approach 2:
The cap removal action itself performs the folding function through the actuator mechanism. As the cap is removed, the actuator automatically engages and drives the folding sequence, making the system self-actuating and eliminating the need for separate manual folding operations by the user.
2Reliability
If a removable cap actuation system is integrated, then proper folding and delivery are ensured, but the device complexity increases
Solution Approach 1:
The actuator is designed with a universal interface that can engage with different cap configurations and drive various folding mechanisms. This multi-functional actuator can accommodate different IOL types and folding sequences while maintaining the same basic mechanism, reducing overall system complexity despite the added reliability features.
3Adaptability or versatility
If standardized attachment to various handpieces is implemented, then interchangeability and ease-of-use are enhanced, but the adaptability requirements increase device complexity
Solution Approach 1:
The cartridge incorporates a standardized attachment interface that can connect to multiple handpiece types with different drive mechanisms. This universal interface design allows the same cartridge to be used with various drive systems (manual, motorized, foot-pedal actuated) without modifying the cartridge itself, enhancing versatility while maintaining relatively simple interface mechanics.
Data Source
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AI summary
Systems, methods, and apparatuses for removably attaching a drive mechanism handpiece to an intraocular lens (IOL) cartridge that folds the IOL upon removal of a cap, are provided. The IOL cartridge comprises a nozzle and a housing comprising a slide. A compartment configured to receive an IOL is disposed within the housing. An interior portion of the slide is exposed to the compartment. The nozzle is in fluid communication with the compartment. The cap covers the nozzle and the slide. The cap is configured to expose the nozzle and advance the slide to fold the IOL upon removal of the cap.