Microneedle Stacking Mode for Repeated Multi-Layer Skin Delivery
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Solution Overview
Problem
Existing microneedle therapy systems require burdensome manual operations for repeated needling, either through pressing a piston or operating a motor, which is inefficient and cumbersome for users.
Innovation Solution
A microneedle therapy device with a stacking mode that allows needling to be performed repeatedly by pressing a one-shot button, featuring automatic or manual modes, and includes a pressure generation mechanism to inject effective ingredients into multiple skin layers with controlled penetration depths and positive-pressure generation times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If microneedles are moved repeatedly using a piston or motor, then needling can be performed multiple times, but the operation becomes burdensome and cumbersome for users
Solution Approach 1:
The device enables automatic repeated needling operations through a one-shot button mechanism. When the user presses the button once, the system automatically performs multiple needling cycles without requiring continuous manual intervention. This transforms the operation from a burdensome repetitive task to a simple single-action trigger, significantly improving ease of operation while maintaining high productivity
Solution Approach 2:
The device implements periodic needling actions through automated cycles. After a single button press, the system executes multiple needling operations at predetermined intervals, then pauses and waits for the next button press. This periodic automation reduces user burden while ensuring consistent treatment delivery across multiple skin layers
2Quantity of substance
If pharmacological agents are applied onto the epidermal layer, then the agents can be delivered to the skin, but the amount reaching the dermal layer and reaching speed are drastically reduced
Solution Approach 1:
The device performs preliminary mechanical needling action before pharmacological agent delivery. By first creating micro-channels in the epidermal layer through microneedle penetration, the system prepares the skin pathway in advance. This preliminary action removes the barrier that would otherwise slow down and reduce the quantity of agents reaching the dermal layer, enabling faster and more efficient substance delivery
Solution Approach 2:
The microneedles serve as an intermediary mechanism between the pharmacological agents and the dermal layer. Instead of directly applying agents onto the intact epidermis (which blocks delivery), the microneedles create temporary channels that facilitate agent transport. This intermediary action significantly increases both the quantity and speed of agent delivery to the target dermal layer
3Speed
If pressure or ultrasonic vibrations are applied to deliver pharmacological agents, then the agents can reach the dermal layer faster, but the cost and device size increase
Solution Approach 1:
The device extracts and eliminates the complex pressure generation or ultrasonic vibration mechanisms from the system. Instead of incorporating expensive and bulky components for generating these forces, the patent achieves rapid agent delivery through simple microneedle mechanical penetration combined with basic pressure application. This extraction of unnecessary complexity significantly reduces device size and cost while maintaining effective delivery speed
Solution Approach 2:
The device replaces complex mechanical systems (pressure generators or ultrasonic devices) with a simpler mechanical approach. Instead of using elaborate mechanisms to generate pressure or vibrations, the system uses straightforward microneedle insertion and basic pressure application. This substitution dramatically simplifies the device structure, reducing both size and cost while achieving the same therapeutic effect of rapid agent delivery to the dermal layer
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 device eliminates the need for repeated manual button pressing, enables efficient treatment of multiple skin layers with optimized ingredient delivery, and enhances subcision effects for skin conditions like scars.
Implementation Method 1
a needling in which a microneedle moves forward and backward
Implementation Method 2
a pressure generation mechanism to inject effective ingredients into multiple skin layers
Data Source
AI summary
The present invention relates to a microneedle therapy system and, more particularly, to a microneedle therapy device and system equipped with a stacking mode which allows needles to be stacked repeatedly with a single button click and enables injecting an active ingredient into multiple layers of the skin so as to be treated at once.