Sterile Lavage Flow-Adjusting Member for Targeted Fluid Delivery
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Solution Overview
Problem
Current lavage devices are inefficient, pose contamination risks, and lack control over fluid flow, often requiring re-equilibrium periods that compromise sterility and delay the lavage process, with a need for versatile, terminally sterilized systems that allow optimal control and targeting of lavage fluid delivery.
Innovation Solution
Devices and systems featuring a sealed body containing terminally sterilized lavage fluid and a flow-adjusting member that facilitates selectable fluid flow rates and patterns, allowing adaptable control over lavage fluid delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a resilient hollow body is used to expel lavage fluid upon pressure application, then fluid delivery capability is improved, but contamination risk increases due to required re-equilibrium periods that introduce non-sterile gas
Solution Approach 1:
The device is divided into separate functional components: a resilient hollow body for fluid storage and a separate valve mechanism for controlled fluid release. This segmentation allows the body to be pressurized for rapid fluid delivery while the valve controls the release path to prevent contamination during re-equilibrium periods.
Solution Approach 2:
A valve acts as an intermediary between the resilient body and the external environment. The valve mediates the interaction by controlling when fluid is released and when the system is sealed, preventing non-sterile gas from entering the lavage fluid pathway while still allowing pressure-driven fluid expulsion.
2Stability of the object's composition
If re-equilibrium periods are implemented to restore internal pressure, then pressure balance is improved, but lavage process time increases due to unacceptable delays
Solution Approach 1:
The resilient hollow body is pre-filled and pre-pressurized with lavage fluid before use. This preliminary action eliminates the need for re-equilibrium periods during the actual lavage process, as the pressure is already established in the stored fluid, allowing immediate deployment without time loss.
Solution Approach 2:
The device is designed to maintain continuous pressure-driven fluid delivery without interruption for re-equilibrium. The resilient body continuously expels fluid as long as pressure is applied, eliminating idle periods and ensuring continuous useful action throughout the lavage process.
3Device complexity
If the same pathway is used for both lavage fluid dispensing and gas intake, then device simplicity is improved, but flow control precision deteriorates due to non-optimized paths
Solution Approach 1:
The internal pathways are segmented into distinct functions: a dedicated fluid dispensing pathway optimized for controlled lavage fluid delivery and a separate gas intake pathway for pressure equalization. This segmentation allows each pathway to be optimized for its specific function, improving flow control precision while maintaining overall device simplicity.
Data Source
AI summary
A system for applying a lavage fluid to a surface, the system having a sealed body for housing a lavage fluid, and a flow-adjusting member being configured to create a disruption in the sealed body dispense the lavage fluid, wherein the sealed body and lavage fluid contained therein are terminally-sterilized.