Disposable Dental Filter Assembly for Aerosol Contamination Control
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Solution Overview
Problem
Traditional filter assemblies often fail to prevent cross-contamination by not effectively separating bacteria, viruses, and other contaminants from the surrounding environment, posing a risk in sterile medical procedures.
Innovation Solution
A filter assembly comprising a filter housing with a filter medium that is at least partially exposed to the external environment, designed to be coupled with evacuation components, utilizing HEPA-grade filters and antibacterial agents to capture aerosols and contaminants, and featuring a disposable design with a cap to prevent re-contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional filter assemblies are used, then the structure is simple and cost is low, but they fail to effectively separate bacteria, viruses, and contaminants from the surrounding environment
Solution Approach 1:
The filter assembly is divided into distinct functional segments: a filter medium for particle separation, a filter housing for structural support and direction, and a cap for sealing and protection. This segmentation allows each component to be optimized for its specific function while maintaining overall system effectiveness in separating contaminants.
Solution Approach 2:
The filter housing acts as an intermediary component that directs fluid flow between the cap and the filter medium. It provides a structured pathway that ensures contaminants pass through the filter medium while maintaining proper sealing and structural integrity, thereby enhancing separation effectiveness.
2Reliability
If reusable filter assemblies are used, then cost is reduced, but re-use-related contamination occurs
Solution Approach 1:
The filter assembly is designed as a disposable unit that can be discarded after single use, eliminating the risk of re-use-related contamination. The complete assembly including filter medium, housing, and cap is intended for single-use applications to ensure sterile environment maintenance without the need for cleaning or sterilization between uses.
3Reliability
If filter medium is fully enclosed, then protection from contamination is improved, but aerosol removal from external environment is reduced
Solution Approach 1:
The filter medium is selectively exposed to the external environment at specific locations where aerosol removal is needed, while other portions remain enclosed within the filter housing for protection. This local exposure approach allows the filter to capture aerosols from the environment while maintaining sealed connections to evacuation components, thus balancing aerosol removal effectiveness with contamination prevention.
4Reliability
If HEPA-grade filters and antibacterial agents are used, then contaminant removal effectiveness is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The filter assembly combines HEPA-grade filtration technology with antibacterial treatment in a single integrated unit. The filter medium incorporates both high-efficiency particulate removal capabilities and antibacterial properties, allowing simultaneous achievement of contaminant capture and bacterial inactivation without requiring separate systems, thereby managing manufacturing complexity while maintaining high effectiveness.
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 filter assembly effectively removes aerosols and contaminants from the external environment, reducing the risk of cross-patient contamination and ensuring a sterile environment during medical procedures by using HEPA-grade filters and antibacterial agents, and its disposable nature prevents re-use-related contamination.
Implementation Method 1
a filter medium carried by the filter housing and at least partially directly exposed to an external environment to be filtered by the filter assembly
Implementation Method 2
utilizing HEPA-grade filters and antibacterial agents to capture aerosols and contaminants
Implementation Method 3
utilizing HEPA-grade filters and antibacterial agents to capture aerosols and contaminants
Data Source
AI summary
Systems and methods are disclosed that include providing a filter assembly having a filter housing and a filter medium disposed within and/or carried by the filter housing. The filter medium is configured to be exposed to an external environment and collect, filter, or otherwise remove aerosols (which may be contaminated with bacteria, viruses, or a combination thereof) from the external environment when coupled to an evacuation component, such as a dental high vacuum evacuation (HVE) line.