Handheld Nasal Irrigation With Gravity Feed and Vacuum Suction
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Solution Overview
Problem
Current nasal irrigation devices lack a practical, hand-held solution that combines gravity, pressure, and suction delivery methods, and do not offer a powered mechanism for safe and controlled irrigation, leading to inefficiencies and user discomfort.
Innovation Solution
A hand-held nasal irrigation device with a source of saline solution, an effluent receptacle, a nasal interface, fluid passageways, and a switch and valve assembly that utilizes gravity and powered suction to deliver saline solution, providing a controlled and gentle irrigation while collecting effluent for easy disposal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If gravity-based irrigation is used, then the device is simple and easy to manufacture, but it lacks controlled delivery and requires awkward physical positioning
Solution Approach 1:
The patent combines gravity-based saline delivery with powered suction in a single integrated device. The gravity feed system provides simple saline flow while the powered suction component adds controlled effluent removal, merging two different delivery mechanisms into one cohesive system that maintains manufacturing simplicity while dramatically improving user convenience
Solution Approach 2:
The patent introduces a powered suction mechanism as an intermediary element that mediates between the simple gravity feed system and the user's nasal cavity. This intermediary component provides the controlled suction action needed for comfortable operation without requiring the user to maintain awkward positions, while the overall device remains relatively simple to manufacture
2Ease of operation
If pressure-based irrigation is used, then delivery control is improved, but harmful pressures may be applied to the nasal cavity
Solution Approach 1:
Instead of applying positive pressure to force saline into the nasal cavity (which risks harmful pressures), the patent inverts the approach by using negative pressure (suction) to draw effluent out. This inverted mechanism provides delivery control while eliminating the risk of harmful positive pressure being applied to sensitive nasal structures
Solution Approach 2:
The patent converts the potential harm of uncontrolled pressure into a benefit by using controlled suction. The suction mechanism provides the necessary delivery control while inherently preventing harmful pressure buildup, turning what could be a harmful mechanism (pressure application) into a beneficial one (controlled negative pressure removal)
3Productivity
If powered suction is added to the device, then irrigation effectiveness is improved, but device complexity increases
Solution Approach 1:
The patent segments the irrigation device into distinct functional modules: a gravity-based saline delivery system and a powered suction system. This segmentation allows each component to be optimized independently and simplifies the overall design by clearly defining boundaries between functions, making the complex device more manageable and easier to manufacture
4Device complexity
If effluent collection is not provided, then device simplicity is maintained, but effluent disposal becomes messy and inconvenient
Solution Approach 1:
The patent implements a self-service effluent collection system where the powered suction mechanism automatically draws effluent into a collection reservoir. This eliminates the need for manual disposal and prevents messiness, as the device itself performs the collection function without requiring user intervention or creating messy discharge
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
The device offers a convenient, effective, and safe method for nasal irrigation, reducing nasal congestion and improving airflow by using a combination of gravity and suction, eliminating the risks of harmful pressures, and facilitating quick and easy disposal of effluent.
Implementation Method 1
a vacuum source, fluid passageways... The source of saline solution communicates with the effluent receptacle through the fluid passageway
Implementation Method 2
The nasal interface engages a device user's nostrils to deliver saline solution by gravity from the source to the nasal cavity
Data Source
AI summary
Systems and methods for nasal irrigation are provided in which a nasal irrigation device includes a source of saline solution, an effluent receptacle, a nasal interface, a vacuum source, a fluid passageway to communicate the source of saline solution with the effluent receptacle through the nasal interface and a nasal cavity of a user, and a switch and valve assembly for selectively controlling the vacuum source and flow of the saline solution through the fluid passageway. The source of saline solution is disposed relative to the device to provide gravitational inducement of the saline solution to the nasal interface in engagement to the device user's nostrils. A combination of the gravitational inducement and a relative vacuum from the effluent receptacle generates a fluid flow for irrigating, cleansing and massaging the nasal cavity and ostia of the user. The entire device is assembled as a hand-held device for convenient lifting and disposal against the user's nostrils.