Antiseptic Applicator Valve System for Flow Control
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Solution Overview
Problem
Conventional antiseptic applicators lack a mechanism to control the flow of antiseptic solution after it has been released from the container, making it difficult to apply the solution effectively and ergonomically to a surface.
Innovation Solution
An antiseptic applicator design that includes a hollow body with a solution container and an application member, featuring a valve system that allows controlled release and flow of the antiseptic solution through a fluid chamber and a pledget for enhanced flow control and tinting, enabling one-handed operation to manage the flow rate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a puncturing means is used to release the antimicrobial solution, then the solution can be released from the sealed container, but there is no mechanism to control the flow of the solution to the surface
Solution Approach 1:
The valve mechanism is integrated within the application member, merging the flow control function with the application function. The valve body forms part of the application member structure, eliminating the need for separate flow control components and reducing overall device complexity while enabling one-handed operation.
Solution Approach 2:
The valve system is designed to be self-regulating through spring-loaded mechanisms that automatically control solution flow. The spring-loaded valve member responds to pressure changes from the squeezable container, providing automatic flow control without requiring additional actuators or complex control systems.
2Ease of operation
If a frangible ampoule is used with one-way directional force, then the ampoule can be fractured to release solution, but there is no mechanism to control the flow rate after release
Solution Approach 1:
The application member is designed to be squeezable and deformable, allowing dynamic adjustment of the container compression force. This dynamic deformation directly controls the pressure applied to the frangible ampoule and the subsequent solution flow rate, enabling real-time flow control through simple hand motion without additional mechanical components.
Solution Approach 2:
The system uses hydraulic pressure generated by squeezing the flexible container to control solution flow. The pressure transmitted through the fluid directly actuates the valve mechanism and controls the flow rate through the porous material, converting manual squeezing force into controlled hydraulic flow without requiring separate actuation systems.
3Productivity
If the solution is released without flow control, then the application process is simple, but ergonomic control and effective application to the surface are difficult
Solution Approach 1:
The application member incorporates porous material that provides passive flow resistance and distributes the solution evenly across the application surface. The porous structure naturally regulates flow rate based on pressure differential, enabling effective application to the skin surface while maintaining ergonomic one-handed operation without requiring active flow control mechanisms.
Solution Approach 2:
The valve mechanism acts as an intermediary between the solution container and the application surface, mediating the flow of solution. This intermediary component translates the user's squeezing action into controlled solution discharge, improving both application efficiency and ergonomic control by decoupling the force application from the flow rate.
4Ease of manufacture
If no flow control mechanism is present, then the device structure is simple, but visual confirmation of drying and user experience are reduced
Solution Approach 1:
The solution contains a color indicator that changes as the solution dries on the skin surface. This color change provides visual confirmation to the user that the antiseptic application is complete and effective, enhancing user experience and application reliability without adding mechanical complexity to the device structure.
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 applicator provides convenient and ergonomic control over the antiseptic solution's flow, ensuring effective application and visual confirmation of drying through color change, enhancing user experience and application efficiency.
Implementation Method 1
a valve system that allows controlled release and flow of the antiseptic solution
Implementation Method 2
a pledget for enhanced flow control and tinting
Data Source
Figure 1
Figure 2
Figure 3a~3c
AI summary
An applicator assembly may include a body having a proximal end portion and a distal end portion, an actuator operatively coupled to the body, a container disposed within the body, an application member attached to the distal end portion, and a valve disposed between the container and the application member. Actuation of the actuator opens the valve and places the interior of the container in fluid communication with the application member by way of a compressive force applied to the body. A method of applying a solution to a surface may include actuating the actuator, wherein actuation of the actuator applies a compressive force to the body that opens the valve and places the interior of the container in fluid communication with the application member, and contacting the application member to the surface, thereby applying the solution to the surface.