Stamp Fluid Delivery Container With Microneedles
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Solution Overview
Problem
Existing fluid delivery containers with microneedles for skin or scalp care face challenges in uniformly and smoothly supplying fluid to the dermis due to complex nozzle opening/closing structures and issues with fluid leakage.
Innovation Solution
A stamp type fluid delivery container with a simple structure featuring a container body, needle housing with parallel slots, a sealing cover, and a closing cap, which includes an oblong fluid discharge hole and an air hole to prevent leakage, allowing for uniform and controlled fluid supply to microneedles without a separate nozzle opening/closing mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a nozzle opening/closing structure and connecting housing are separately formed, then fluid can be supplied to the dermis through microneedles, but the structure becomes complicated and fluid is not uniformly supplied to the slots
Solution Approach 1:
The patent merges the nozzle hole and fluid channel into a single integrated structure where the nozzle hole serves dual purposes: as the fluid discharge opening and as the fluid channel leading to the slots. This eliminates the need for a separate connecting housing and nozzle opening/closing structure, simplifying the overall device while maintaining effective fluid delivery to the microneedles slots.
2Reliability
If a base and cover with fluid channel hole are used without nozzle structure, then fluid can permeate into dermis through microneedles, but the structure becomes complicated and fluid is excessively supplied
Solution Approach 1:
The patent combines the fluid channel and nozzle hole into one integrated component, eliminating the need for a separate base structure. The nozzle hole directly receives fluid from the container and channels it to the slots, simplifying the structure while controlling fluid supply to prevent excessive delivery.
3Productivity
If fluid channel hole keeps open in the cover, then fluid can flow freely, but fluid leaks outside during storage and carrying
Solution Approach 1:
The patent makes the fluid channel dynamic by positioning it within the movable nozzle hole structure. The channel is open during use when the nozzle hole is activated, but closed during storage when the nozzle hole is sealed, allowing the system to adapt its state based on operational requirements and preventing leakage.
4Ease of operation
If nozzle hole is opened by pressing nozzle bar on skin, then fluid can be supplied through microneedles, but the structure becomes complicated with separate opening/closing mechanism
Solution Approach 1:
The patent merges the activation mechanism with the fluid channel structure itself. The nozzle hole is formed as an integral part of the connecting housing that can be directly activated by pressing against the skin, eliminating the need for separate nozzle bars and cover mechanisms while maintaining ease of operation.
Data Source
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AI summary
Proposed is a stamp type fluid delivery container with microneedles, the container being used to inject fluid for skin or scalp care, treatment, etc. In detail, a needle housing having microneedles coupled in slots formed to the left and right in parallel is coupled to a coupling groove at the upper portion of a container body, a fluid discharge hole is formed in an oblong shape on the bottom of the coupling groove across the slots of the needle housing, and an air hole through which air can flow without leakage of fluid is formed in the upper portion of the container body. Accordingly, it is possible to uniformly and smoothly supply fluid not excessive, but appropriately to the microneedles even without a nozzle opening/closing structure and it is also possible to use the fluid delivery container without the possibility of leakage of fluid at normal times.