Portable Isolation Unit with Negative Pressure Ventilation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Healthcare workers are at risk of infection from highly infectious airborne diseases like COVID-19 due to inadequate physical protection when treating patients outside specialist hospital containment rooms, as existing negative pressure rooms are ineffective in capturing large viral droplets, and there is a need for a portable, cost-effective solution that meets hospital-grade hygiene standards.
Innovation Solution
A portable isolation unit with a configurable enclosure and ventilation system that provides negative or positive air pressure, using a transparent plastic sheet cover supported by resilient rods and a HEPA filter, which can be easily deployed over a bed or chair to shield healthcare workers from viral droplets and allow for continued patient care with reduced exposure risk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a portable isolation unit with enclosure and ventilation is deployed, then protection for healthcare workers is improved, but device complexity increases
Solution Approach 1:
The isolation unit is divided into separate modular components: an enclosure portion, a ventilation unit, and a portable frame. This segmentation allows each component to be independently designed, manufactured, and assembled, reducing overall complexity while maintaining protective functionality. The enclosure can be configured between stowed and deployed states, further simplifying storage and transport.
Solution Approach 2:
The portable frame serves multiple functions: it supports the enclosure portion, provides structural stability, and houses the ventilation unit. This multi-functionality reduces the number of separate components needed, thereby reducing device complexity while enhancing protection for healthcare workers treating patients with infectious diseases.
2Illumination intensity
If a transparent plastic sheet cover is used for the enclosure, then visibility for patient care is improved, but structural strength may be reduced
Solution Approach 1:
The enclosure combines transparent plastic material with resilient rods to create a composite structure. The transparent plastic provides visibility for patient care while the resilient rods provide structural strength and support. This composite approach allows both requirements to be satisfied simultaneously without compromising either visibility or structural integrity.
Solution Approach 2:
The enclosure portion uses a flexible transparent plastic sheet cover that can be tensioned over the patient area. This thin film material provides sufficient structural strength when tensioned while maintaining transparency for visibility. The flexible nature allows the enclosure to be portable and easily deployed.
3Ease of operation
If the enclosure portion is made foldable, then ease of storage and transport is improved, but manufacturing precision requirements increase
Solution Approach 1:
The enclosure portion is designed to be configurable between a stowed state for compact storage and transport, and a deployed state for providing isolation protection. This dynamic configuration allows the same structure to serve different functional requirements. The foldable design uses simple hinged connections that do not require high manufacturing precision while enabling easy transformation between states.
Solution Approach 2:
The foldable enclosure is divided into segmented panels connected by simple hinges, allowing it to be collapsed into a compact configuration for storage and transport. This segmentation enables ease of operation without requiring complex mechanisms or high manufacturing precision, as each panel can be independently positioned and connected.
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 portable isolation unit effectively captures large viral droplets and aerosols, reducing the risk of infection for healthcare workers while allowing for uninterrupted patient care and easy cleaning, and is cost-effective and adaptable for emergency situations.
Implementation Method 1
a ventilation unit configured for applying air pressure to an area beneath the enclosure portion when the enclosure portion is in the deployed state
Implementation Method 2
ventilation unit configured for applying air pressure to an area beneath the enclosure portion
Implementation Method 3
using a transparent plastic sheet cover supported by resilient rods and a HEPA filter
Data Source
AI summary
A portable isolation unit for use with a bed or chair, including an enclosure portion configurable between a stowed state and a deployed state, in which the enclosure portion substantially shields over an end of the bed or chair; a ventilation unit configured for applying air pressure to an area beneath the enclosure portion when the enclosure portion is in the deployed state; and a portable frame to which the enclosure portion and ventilation unit are mounted.