Curved Segmented Delivery Tool for Precise Viscoelastic Fluid Injection
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Solution Overview
Problem
Current cataract surgery techniques require improved precision and efficiency in delivering viscoelastic solutions during cataract removal and intraocular lens placement, as existing methods can be cumbersome and lack optimal fluid delivery mechanisms.
Innovation Solution
A delivery tool connectable to a syringe, featuring a segmented design with a curved distal portion and beveled surface, providing a leak-free connection and precise fluid delivery to the anterior chamber of the eye.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a traditional syringe delivery system is used for viscoelastic solution delivery, then the surgical procedure can be performed, but the precision and efficiency of fluid delivery is insufficient
Solution Approach 1:
The delivery tool is divided into multiple segments including a hub, a cannula with first and second segments, and a distal portion. This segmentation allows for precise control of fluid delivery while maintaining surgical efficiency through modular design that enables easy assembly and proper positioning within the anterior chamber.
Solution Approach 2:
The distal portion of the cannula extends in a curved manner rather than linearly. This curvature enables the delivery tool to navigate the anatomical constraints of the eye and deliver viscoelastic solution precisely to the anterior chamber with improved efficiency and reduced surgical complexity.
2Measurement precision
If a simple delivery mechanism is used, then the device complexity is low, but the precision of viscoelastic solution delivery to the anterior chamber is insufficient
Solution Approach 1:
Different segments of the delivery tool have specialized features tailored to their specific functions: the hub provides connection and control, the cannula segments provide structural support and fluid passage, and the curved distal portion provides precise positioning. This local optimization achieves high delivery precision without requiring overall system complexity.
Solution Approach 2:
The delivery tool acts as an intermediary between the syringe and the anterior chamber, with its segmented structure and curved distal portion serving as a bridge that translates simple syringe actuation into precise fluid delivery at the target location within the eye.
3Measurement precision
If a linear delivery path is used, then the device structure is simple, but the ability to navigate ocular anatomy and deliver fluid precisely is limited
Solution Approach 1:
The curved distal portion of the cannula is specifically designed to navigate the anatomical constraints of the ocular structures. This curvature allows the delivery tool to follow the natural contours of the eye and reach the anterior chamber precisely, improving both delivery accuracy and surgical ease without increasing overall device complexity.
Data Source
AI summary
A delivery tool connectable with a syringe can be used to deliver a viscoelastic solution. The tool includes a first segment, a second segment and an inner lumen defined by the first and second segments. A distal portion extends from the second segment in a curved manner.