Intraocular Lens Injector Container with Movement Restriction
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Solution Overview
Problem
Conventional intraocular ring injectors face challenges in stably housing the intraocular ring due to the risk of disengagement during the housing operation, especially when the operator is distracted by moving the plunger, leading to potential misalignment and instability.
Innovation Solution
The design incorporates a container with a moving mechanism allowing the hollow body and plunger to move relatively in the axial direction, featuring movement restricting portions to prevent disengagement and ensure the intraocular ring is securely housed, including a nozzle with an overhanging portion to prevent backflow and a protrusion for engagement, facilitating stable and normal housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the operator moves the plunger to push out the intraocular ring, then the intraocular ring can be housed in the injector, but the engagement between the pushing member and the eyelet may be released causing instability
Solution Approach 1:
The patent incorporates a movement restricting portion that provides tactile feedback to the operator during the housing operation. When the pushing member engages with the eyelet, the movement restricting portion prevents further movement of the hollow body, providing clear feedback that the engagement is secure. This feedback mechanism ensures the operator can maintain reliable engagement while completing the housing operation.
Solution Approach 2:
The movement restricting portion acts as an intermediary between the hollow body and the container. It mediates the interaction by allowing controlled movement during housing while preventing disengagement, thus maintaining the engagement stability without interfering with the normal housing operation.
2Productivity
If the operator is distracted by moving the plunger, then the housing operation can be completed, but the risk of misalignment and disengagement increases
Solution Approach 1:
The movement restricting portion provides real-time feedback to the operator about the engagement status. When the pushing member is properly engaged with the eyelet, the movement restricting portion prevents further hollow body movement, giving clear tactile feedback that confirms proper alignment. This feedback allows the operator to maintain precision even while managing the plunger movement.
Solution Approach 2:
The movement restricting portion is positioned to engage with the hollow body before disengagement can occur. This preliminary restriction of movement ensures that alignment is maintained throughout the housing operation, preventing misalignment even when the operator is focused on plunger movement.
3Ease of operation
If the hollow body moves freely in the container, then the housing operation is easy, but the intraocular ring may disengage from the pushing member
Solution Approach 1:
The movement restricting portion is designed to be dynamically responsive. It allows the hollow body to move freely during the initial housing operation but automatically engages to restrict movement when the pushing member contacts the eyelet. This dynamic behavior maintains engagement reliability without interfering with the ease of the housing operation.
Solution Approach 2:
The movement restricting portion serves as an intermediary that mediates between the hollow body's natural movement and the engagement requirement. It allows easy operation during housing while automatically activating to prevent disengagement, thus maintaining reliability without compromising ease of operation.
Data Source
AI summary
There is provided an intraocular ring injector which allows an operator to stably and normally house the intraocular ring in the intraocular ring injector, which is an intraocular ring injector 20 with a container configured so that an intraocular ring injector 10 is housed in a container 4, for injecting an intraocular ring C into an eye for retaining a shape of a lens capsule,the intraocular ring injector comprising:a hollow body 1 having a hollow part in which the intraocular ring C is housed;a plunger 2 that moves through an inside of the hollow body 1 in an axial direction of the hollow body 1; anda pushing member 3 that pushes out the intraocular ring C by moving together with the plunger 2 through the inside of the hollow body 1 and toward front part of the hollow body 1 in the axial direction,wherein the container 4 has a moving mechanism of moving the hollow body 1 and the plunger 2 relatively in the axial direction, while housing the intraocular ring injector 10 in the container 4.