Glaucoma Drainage Tube With Flow-Responsive Displacement Feedback
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Solution Overview
Problem
Existing glaucoma drainage tubes lack the ability to effectively evaluate the health condition of a patient's eye after shunt surgery and correlate exercise with ocular hypotensive effects, limiting the physician's assessment capabilities.
Innovation Solution
A glaucoma drainage tube with a displacement member, such as a cardiac valve or fibrin membrane, that reciprocates in response to aqueous humor flow, allowing evaluation of eye health and exercise correlation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional glaucoma drainage tube is used, then aqueous humor can be drained from the eye, but the health condition of the patient's eye cannot be effectively evaluated after shunt surgery
Solution Approach 1:
The displacement member changes its visual appearance through motion and displacement in response to aqueous humor flow, providing visual feedback about eye health status. The cardiac valve-like structure opens and closes dynamically, creating observable motion patterns that indicate different physiological states.
Solution Approach 2:
The displacement member provides real-time feedback about aqueous humor flow and eye pressure conditions through its reciprocating motion. This visual feedback mechanism allows physicians to assess eye health status without additional measurement devices.
2Measurement precision
If a conventional glaucoma drainage tube is used, then aqueous humor drainage is achieved, but correlation between exercise and ocular hypotensive effect cannot be assessed
Solution Approach 1:
The displacement member provides visual feedback that correlates with physiological changes during exercise. By observing the displacement patterns and motion characteristics of the cardiac valve-like structure, physicians can assess how exercise affects ocular pressure and the effectiveness of the drainage system.
Solution Approach 2:
The displacement member automatically responds to physiological changes caused by exercise through its inherent mechanical properties. The structure self-regulates and provides information about exercise effects without requiring external measurement devices or additional patient actions.
3Reliability
If a displacement member with fibrin membrane properties is used, then elasticity is obtained for better functionality, but manufacturing complexity increases
Solution Approach 1:
The displacement member's physical properties are optimized to match fibrin membrane characteristics, including elasticity, flexibility, and mechanical response to pressure changes. These parameter adjustments enhance the physiological compatibility and functional performance of the device.
Solution Approach 2:
The displacement member may utilize composite material structures that combine different properties to achieve fibrin-like elasticity while maintaining manufacturability. The cardiac valve-like structure integrates multiple functional requirements into a unified component design.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables clear assessment of eye health and ocular hypotensive effects by observing the displacement member's motion, mimicking cardiac valve functionality.
Implementation Method 1
a displacement member that is arranged at an inlet of the canal and is displaced so as to reciprocate in response to a flow of the aqueous humor flowing therein
Implementation Method 2
the displacement member has physical properties equal to those of a fibrin membrane (a membrane or film made from a clotting component of blood). Owing to this, it is possible to obtain a displacement member having elasticity.
Data Source
AI summary
A glaucoma drainage tube is provided. The glaucoma drainage tube is a glaucoma drainage tube for draining aqueous humor, and includes a canal through which the aqueous humor flows, and a displacement member that is arranged at an inlet of the canal and is displaced so as to reciprocate in response to a flow of the aqueous humor flowing therein.