Needleless Access Port Valve Piston Slit and Antimicrobial Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing needleless access port valves lack alternatives that effectively control fluid flow and microbial growth in medical applications, with a need for improved designs that incorporate antimicrobial agents and efficient fluid path creation.
Innovation Solution
The development of a valve assembly with a piston featuring internal indentations and ribs for fluid flow paths, antimicrobial agents like silver and gold compounds, and a slit created through cutting processes such as thin blade, laser, or water jet cutting to enhance fluid flow and prevent microbial growth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a piston with internal indentations and ribs is used to create fluid flow paths, then fluid flow control is improved, but device complexity increases
Solution Approach 1:
The piston is segmented into multiple functional zones with internal indentations and ribs that create distinct fluid flow paths. These internal structures divide the fluid flow into controlled channels, improving flow management while maintaining a single integrated piston component.
Solution Approach 2:
The piston incorporates internal indentations and ribs that create a porous-like structure for fluid distribution. This internal geometry allows fluid to flow through multiple paths within the piston body, enhancing flow control without requiring additional external components.
2Reliability
If antimicrobial agents like silver and gold compounds are incorporated into piston and valve housing, then microbial protection is improved, but manufacturing complexity increases
Solution Approach 1:
Antimicrobial agents (silver and gold compounds) are merged into the piston and valve housing materials during the manufacturing process. This combination integrates the antimicrobial function directly into the structural components, eliminating the need for separate antimicrobial treatment steps or additional components.
Solution Approach 2:
The piston and valve housing are formed as composite materials that combine the base material with antimicrobial agents (silver and gold compounds). This composite approach provides both structural integrity and antimicrobial protection in a single manufacturing process.
3Manufacturing precision
If a slit is cut on the piston through cutting processes to create fluid flow path, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
Traditional mechanical cutting methods are replaced with laser cutting technology to create the slit in the piston. This substitution provides superior precision and control over the slit geometry while maintaining a simple single-piece piston structure without additional internal components.
Data Source
Figure 1~4
Figure 5~7
Figure 8
AI summary
Needleless access port valves are generally discussed herein with particular discussions extended to needleless access port valves incorporating a piston comprising slit along an upper piston section for accommodating fluid flow. The slit is closed by the relative geometry of the piston and the valve housing, which acts to terminate fluid flow from between the inlet and outlet of the valve assembly.