Intraocular Lens Injector Posture Holding Mount
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Solution Overview
Problem
Existing intraocular lens insertion instruments with preset lenses face issues of high production costs and potential malfunction due to complex moving mechanisms, and the lenses can stick to the injector settings, leading to stress and instability, especially with soft acrylic or silicone materials.
Innovation Solution
An intraocular lens insertion instrument with a main body, lens setting section, transition section, and nozzle piece, featuring a lens push-out mechanism and releasing means with a posture holding mount and scooping surface to facilitate smooth lens release and movement, preventing sticking and stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex lens moving mechanism is used to push out the preset lens, then the lens can be moved from preset position to releasable position, but the production cost increases and malfunction risk increases
Solution Approach 1:
The patent extracts the lens from the complex moving mechanism by using a simple push-out structure where the lens is held in a preset position and then pushed out in one continuous motion without requiring complex mechanical components. The plunger directly pushes the lens from the staging area through the incision, eliminating the need for complex lens moving mechanisms.
Solution Approach 2:
Instead of using a complex mechanism to move the lens from preset to releasable position, the patent inverts the approach by having the lens remain stationary in the preset position until pushed out by a simple plunger mechanism. The lens is held unstressed in the staging area and then moved in one continuous motion directly to the eye, reversing the conventional complex moving mechanism approach.
2Stability of the object's composition
If the lens is stored in close contact with the lens setting section, then the lens is securely held, but the lens sticks to the setting section causing stress and damage
Solution Approach 1:
The patent introduces an intermediary substance (such as a release agent or coating) between the lens and the lens setting section. This intermediary prevents the lens from sticking to the setting section while the lens is being held in the preset position, allowing for smooth push-out without stress or damage to the lens material.
Solution Approach 2:
The patent changes the surface properties of the lens setting section or the lens itself by applying coatings or modifying surface energy characteristics. This parameter change reduces adhesion between the lens and the setting section, preventing sticking during storage and push-out while maintaining secure holding when needed.
Data Source
Figure 1(A)~1(B)
Figure 2
Figure 3(A)~3(B)
AI summary
An intraocular lens insertion instrument capable of smoothly pushing out a preset lens is provided. An intraocular lens insertion instrument (1) comprises: a main body (3) including a lens setting section (8) on which a lens (2) is set, a transition section (22) that deforms the lens (2), and a nozzle piece (21) that releases the lens (2); and a lens push-out mechanism (4) that pushes out the lens (2) set on the lens setting section (8). The instrument (1) further includes a releasing means (11) for releasing the lens (2) pushed by the lens push-out mechanism (4) from the lens setting section (8). The releasing means (11) has a posture holding mount (12) that holds the lens (2) with a forward tilt relative to an axial line (A) of lens movement. The posture holding mount (12) has a passage (15) through which the lens push-out mechanism (4) passes.