Manual Suction Device Plunger Pump Check Valves
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Solution Overview
Problem
Current suction devices are fragile, require assembly or a power source, and are not suitable for manual operation in emergency settings where electrical power may not be available, posing challenges in effectively clearing bodily fluids and debris without causing contamination.
Innovation Solution
A hand-held, manually operated suction device with a pump unit, check valves, and a media collector that uses a plunger and cylinder to create negative and positive pressure for effective extraction and collection of media from body cavities, ensuring a water-tight connection and minimizing backflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current suction devices are used, then suction function is provided, but the devices are fragile and easily broken
Solution Approach 1:
The suction device is divided into separate components (pump unit, media collector, connecting mechanism, tubing) that can be individually sterilized and assembled. This segmentation allows each component to be optimized for durability while maintaining overall device reliability in emergency settings.
2Ease of operation
If current suction devices are used, then suction function is provided, but additional assembly is required
Solution Approach 1:
The pump unit and media collector are designed as pre-assembled integrated components with connecting mechanisms that simplify the overall assembly process. This merging reduces the number of separate parts that need to be assembled while maintaining the functional benefits of modular design.
3Adaptability or versatility
If battery operated or power source required suction devices are used, then automated suction is provided, but they are not suitable for austere environments without power
Solution Approach 1:
The device employs a manual pump mechanism that operates without external power sources, allowing users to generate suction through hand-operated plunger movement. This self-service approach eliminates dependency on batteries or electrical infrastructure, making the device adaptable to austere environments.
4Productivity
If suction pump flows are increased to improve extraction, then media removal efficiency is improved, but backflow risk increases
Solution Approach 1:
Check valves are strategically positioned in the tubing and connecting mechanisms to provide automatic feedback control of media flow direction. These valves respond to pressure changes by opening or closing to maintain unidirectional flow, preventing backflow while allowing efficient media extraction during suction operations.
5Reliability
If tubing is used for media transport, then media collection is enabled, but contamination risk increases
Solution Approach 1:
The tubing and connecting mechanisms are designed as disposable components that can be sterilized or replaced after use. This approach eliminates cross-contamination risks between patients while maintaining cost-effectiveness for emergency and field settings where sterilization resources may be limited.
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 provides a durable, efficient, and safe means to clear airways and body cavities of unwanted media, ensuring rapid emergency treatment and minimizing contamination risks, suitable for both medical and non-medical settings without the need for electrical power.
Implementation Method 1
the pump unit is configured to evacuate the media from the source when the plunger is pulled from the cylinder creating negative pressure throughout the pump unit
Implementation Method 2
the plunger is removably inserted into the cylinder creating positive pressure causing the media to flow through the media collector tube
Implementation Method 3
a first check valve and a second check valve; wherein the drain tube second end is fixedly attached to the first check valve
Data Source
AI summary
A disposable, hand-held, manually operated, and powered suction device for use in both emergent and non-emergent hospital and pre-hospital care settings evacuates media from body cavities created or formed.