Integrated Filter PEEP Valve for Pathogen Containment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing PEEP valves allow pathogens to be released into the atmosphere during exhalation, posing a risk of infectious disease transmission to healthcare workers and other patients, as they require a separate filter device that increases complexity and cost.
Innovation Solution
A PEEP valve with an integral biological filter positioned between the patient interface and exit vents, which prevents or reduces the passage of microbes into the atmosphere by filtering exhalation gases before they are released, using a spring-biased valve mechanism to control gas pressure and a filter media that may include antimicrobial substances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a separate filter device is inserted into the flow path to prevent pathogen emission, then pathogen transmission is reduced, but device complexity and cost increase
Solution Approach 1:
The patent combines the filter device with the PEEP valve into a single integrated unit. The filter element is positioned within the valve body, allowing the valve to serve dual functions: maintaining positive end expiratory pressure and filtering exhaled gases. This merging eliminates the need for separate filter devices, reducing overall system complexity while maintaining pathogen prevention capabilities.
Solution Approach 2:
The PEEP valve is designed to perform multiple functions simultaneously: it provides positive pressure ventilation, controls exhalation pressure, and filters pathogens from exhaled gases. By making the valve multi-functional, the patent eliminates the need for additional dedicated filter devices, thereby reducing device complexity and cost while maintaining effective pathogen transmission prevention.
2Object-affected harmful factors
If a separate filter device is inserted into the flow path to prevent pathogen emission, then pathogen transmission is reduced, but manufacturing cost increases
Solution Approach 1:
The patent combines the filter device with the PEEP valve into a single integrated unit. The filter element is positioned within the valve body, allowing the valve to serve dual functions: maintaining positive end expiratory pressure and filtering exhaled gases. This merging eliminates the need for separate filter devices, reducing overall system complexity while maintaining pathogen prevention capabilities.
3Object-affected harmful factors
If a separate filter device is inserted into the flow path to prevent pathogen emission, then pathogen transmission is reduced, but the chances of disconnected flow path increase
Solution Approach 1:
The patent combines the filter device with the PEEP valve into a single integrated unit. The filter element is positioned within the valve body, allowing the valve to serve dual functions: maintaining positive end expiratory pressure and filtering exhaled gases. This merging eliminates the need for separate filter devices, reducing overall system complexity while maintaining pathogen prevention capabilities.
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 integrated filter effectively reduces the emission of pathogens into the air, enhancing patient safety by containing infectious agents and potentially neutralizing them, while maintaining lung pressure and simplifying the device by eliminating the need for a separate filter.
Implementation Method 1
a spring-biased relief valve which remains closed and prevents the patient from exhaling until the pressure of the patient's exhalation gas exceeds the force of the spring
Implementation Method 2
The PEEP valve has an integral filter in the air flow between a patient interface and exit vents. The filter prevents or reduces the passage of microbes from the patient's exhalation gasses into the atmosphere.
Data Source
AI summary
An application for a PEEP valve includes a filter media in the air flow between a patient interface and exit vent(s). The patient interface is connected to a patient airway system and the exit vents exhaust exhalation gasses into the atmosphere. The filter prevents or reduces the passage of microbes from the patient's exhalation gasses into the atmosphere. The PEEP valve provides positive gas pressure to a patient's lungs, requiring a predetermined exhalation gas pressure to be exceeded before releasing exhalation gasses into the atmosphere.