Intraocular Administration Device with Segmented Needle Reception
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Solution Overview
Problem
Current intraocular administration devices are limited in accommodating various types and sizes of hypodermic needles and syringes, and they often fail to prevent complications such as intraocular hemorrhage and cataracts due to incorrect needle placement.
Innovation Solution
An intraocular administration device with an open access section and wing-shaped elements that accommodate a wide range of needle sizes, providing visual inspection and markers for correct positioning, along with an intermittent elliptical base structure to minimize tissue contact and ensure stable placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a funnel shaped receptacle is used to receive a hypodermic needle, then the needle placement position is improved, but the device can only accommodate a limited variety of needle sizes and types
Solution Approach 1:
The device divides the needle reception area into multiple segmented zones with different depths and configurations. Each zone can accommodate different needle types and sizes, allowing the single device to handle multiple needle specifications while maintaining precise placement positioning.
Solution Approach 2:
The device incorporates adjustable components that allow the reception structure to dynamically adapt to different needle dimensions. The adjustable depth and positioning mechanisms enable the device to accommodate various needle sizes and types while maintaining accurate placement positioning.
2Object-affected harmful factors
If a closed structure is used to protect the injection area, then protection from contamination is improved, but visual inspection during administration becomes difficult
Solution Approach 1:
The protective structure is segmented into multiple zones with varying degrees of openness. The device incorporates open access sections that provide visual inspection capability while other segments maintain protective coverage, allowing simultaneous achievement of both protection and visibility during administration.
Solution Approach 2:
Different portions of the device have different structural qualities - some areas are open for visual inspection while other areas provide protective coverage. This local differentiation allows the device to simultaneously enable visual monitoring and protect from contamination during the administration process.
3Adaptability or versatility
If multiple differently sized types of the known device are kept in stock to accommodate various needles, then adaptability is improved, but device complexity and inventory management become worse
Solution Approach 1:
The device is designed as a universal instrument that can accommodate multiple needle types and sizes through its adjustable and segmented reception structure. This single multi-functional device replaces the need for multiple specialized devices, simplifying inventory management while maintaining broad adaptability.
4Device complexity
If no spreading elements are used to keep the eye open, then device simplicity is improved, but the insertion process is interfered with by involuntary blinking
Solution Approach 1:
The device merges the needle reception function with the eyelid spreading function into a single integrated structure. The wing-shaped elements are combined with the reception zones, allowing the device to both hold the needle and maintain eyelid separation simultaneously, facilitating smooth insertion without additional separate components.
Data Source
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AI summary
The invention relates to a device suitable for intraocular administration of a liquid substance, for example a medication, into a human or animal eye by means of a hypodermic needle. The device comprises a support element comprising a base structure having an elliptical shaped configuration for placement on the eye and a hollow body defining an upright circumferential wall extending in transverse direction from the base structure. The upright wall comprises an open access section, extending from the base structure and is arranged for administration of the substance and visual inspection of the administration of the substance. The hollow body comprises spreading elements for spreading eyelids of the eye, comprising two spaced apart wing shaped elements extending in radial direction from the base structure in longitudinal direction of the hollow body on both sides of the open access section.