Implantable Valve Multi-Directional Pumping Mechanism
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Solution Overview
Problem
Existing hydrocephalus valve systems are inadequate for easily clearing obstructions in both proximal and distal implanted catheters, particularly lacking in multi-directional pumping capabilities.
Innovation Solution
An implantable valve system with a resilient membrane and opposing sealing features that can be manipulated by a single finger to restrict fluid flow and drive fluid through ports using a depression and rolling motion, allowing for effective clearing of obstructions in both directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a multiple finger approach is used to clear obstructions, then the ability to clear blockages in one direction is improved, but the ability to clear blockages in the opposite direction deteriorates
Solution Approach 1:
The patent applies inversion by enabling the valve to pump fluid in both directions through opposite finger motions. The same finger that pushes to clear a proximal blockage can be rolled to clear a distal blockage, inverting the operational approach from single-direction to multi-directional clearing capability
Solution Approach 2:
The valve system achieves universality by designing a single valve mechanism that can clear obstructions in both proximal and distal directions. The opposing sealing features and resilient membrane configuration allow the same structure to perform multiple clearing functions regardless of obstruction location
2Reliability
If complex multi-electrode systems are used to clear obstructions, then the effectiveness of clearing blocked catheters is improved, but the device complexity increases
Solution Approach 1:
The patent replaces complex multi-electrode systems with a simple mechanical pumping mechanism. Instead of using electrical stimulation to clear obstructions, the invention uses a resilient membrane with opposing sealing features that can be manually actuated by finger pressure to pump fluid and clear blockages mechanically
Solution Approach 2:
The valve system enables self-service by allowing patients to clear their own catheter obstructions without requiring external medical intervention or complex electronic systems. The manual pumping mechanism can be operated by the patient themselves through simple finger motions
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 easy and multi-directional clearing of obstructions in implanted catheters using a single finger, improving the efficiency and effectiveness of fluid flow management in hydrocephalus treatment systems.
Implementation Method 1
a resilient membrane defining a reservoir in fluid communication with at least two ports
Implementation Method 2
capable of being depressed additionally by a rolling motion of the finger to drive fluid through the other of the ports
Data Source
Figure 1~2
Figure 3~4
AI summary
An implantable valve system and method of using same, including a housing with a resilient membrane defining a reservoir in fluid communication with at least two ports, and at least a first set of opposing sealing features disposed on upper and lower surfaces within the housing. The membrane is capable of being depressed by a human finger to bring the sealing features together to substantially restrict fluid from passing through at least one of one of the ports, and is capable of being depressed additionally by a rolling motion of the finger to drive fluid through the other of the ports.