Ophthalmic Fixation Apparatus with Flexible Conduits
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Solution Overview
Problem
Conventional eye exam systems lack adequate movement and use of fixation elements, limiting the ability of physicians to direct patients to focus on specific locations during examinations.
Innovation Solution
An ophthalmic fixation apparatus with flexible conduits and a toggle switch, along with a light indicator, allows for easy adjustment and switching between fixation targets, enhancing the operator's ability to direct patient focus during eye exams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional fixation systems are used, then the structure is simple, but the ability to direct patient focus to specific locations is limited
Solution Approach 1:
The patent implements a movable fixation target that can be repositioned along the optical path using a motorized drive mechanism. This dynamic positioning capability allows the fixation target to be directed to specific locations within the patient's visual field, enhancing the system's adaptability while maintaining a relatively compact structure through automated control.
Solution Approach 2:
The fixation target is designed to serve multiple functions: it can be positioned at different locations along the optical path, illuminated independently, and used for various types of eye examinations. This multi-functionality increases adaptability without proportionally increasing device complexity, as the same mechanical structure supports diverse examination protocols.
2Ease of operation
If fixation targets are made movable and adjustable, then the physician's ability to direct patient focus improves, but the device complexity increases
Solution Approach 1:
The patent replaces manual mechanical adjustment mechanisms with an automated motorized drive system. The motorized mechanism electronically controls the position of the fixation target, significantly improving ease of operation while containing complexity through integrated control circuits and programmable positioning sequences.
Solution Approach 2:
The fixation target system includes self-positioning capabilities through automated control mechanisms that can be programmed to move the target to predetermined locations. This self-service feature reduces the operational burden on the physician while managing complexity through automated sequencing and control logic.
3Adaptability or versatility
If multiple fixation targets are provided, then the versatility of the examination increases, but the difficulty of operation increases
Solution Approach 1:
The patent implements a control system that provides feedback on the position and status of multiple fixation targets. This feedback mechanism allows the operator to easily monitor and switch between targets, maintaining ease of operation while supporting multiple targets for versatile examination protocols.
Data Source
AI summary
A ophthalmic fixation apparatus includes a case housing with an interior area to hold a power source, the case housing further having a switch to activate a first fixation element and a second fixation element; one or more straps extending from the case housing; a first flexible conduit extending from the case housing and to facilitate direction of the first fixation element; and a second flexible conduit extending from the case housing and to facilitate direction of the second fixation element; the ophthalmic apparatus is for use during an eye exam to keep the patient's attention and maintain a still eye for examination.