Ocular Implant Insertion Apparatus with Helical Slot Plunger
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Solution Overview
Problem
Current lens insertion apparatuses face challenges in achieving precise control during lens insertion, with push-type systems struggling to balance pressure against frictional resistance and screw-type systems being complex and difficult to operate, often resulting in unintended lens release and potential ocular tissue damage.
Innovation Solution
A lens insertion apparatus with a main body and plunger featuring a helical slot and longitudinally extending clearance grooves, allowing for seamless switching between push-type and screw-type operations, enabling precise control and reducing the risk of lens release through a combination of axial and rotational movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If push-type lens insertion apparatus is used, then one-hand operation is enabled, but precise control of lens movement is difficult to achieve
Solution Approach 1:
The patent combines push-type and screw-type operational mechanisms into a single apparatus. The operational portion can function in push-mode for quick insertion or switch to screw-type rotation for precise control, allowing the system to merge the simplicity of push-type operation with the precision of screw-type mechanisms.
Solution Approach 2:
The apparatus allows dynamic switching between two operational modes (push-type and screw-type) based on the procedural needs. The operational portion can transition from direct pushing to rotational screw-type advancement, providing adaptability in control precision during different phases of lens insertion.
2Measurement precision
If screw-type lens insertion apparatus is used, then precise control of lens travel distance is achieved, but operation becomes difficult and structurally more complicated
Solution Approach 1:
The patent integrates both push-type and screw-type mechanisms within a single apparatus structure. The operational portion can switch between direct pushing and rotational screw-type operation, combining the precision advantages of screw-type with the operational simplicity of push-type when needed.
Solution Approach 2:
The operational portion is designed to perform multiple functions: it can operate as a simple pusher for quick insertion or as a rotational screw mechanism for precise control. This multi-functionality allows the same component to adapt to different operational requirements without requiring separate apparatuses.
3Reliability
If push-type apparatus with increasing resistance is used, then lens control is improved, but operation becomes more complex
Solution Approach 1:
The patent combines the simplicity of push-type apparatus with the control features of screw-type mechanisms. The operational portion can engage in direct pushing for simple operation or switch to rotational screw-type movement for enhanced control, merging advantages without requiring entirely separate systems.
Data Source
AI summary
Ocular implant insertion apparatus configured for screw-type and push-type operation and associated methods. Such insertion apparatus includes a main body defining a longitudinal axis and a plunger, movable relative to the main body, including a rod portion and an operational portion rotatably mounted on the rod portion. One of the main body and the plunger operational portion includes a helical slot and at least one longitudinally extending clearance groove that intersects the helical slot and the other of the main body and the operational portion includes at least one protrusion that is sized and shaped to fit within the helical slot and within the at least one longitudinally extending clearance groove.