Micro-Projection Massage Head for Shallow, Comfortable Transdermal Delivery

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Solution Overview

Problem

Existing microneedle transdermal enhancement technologies face issues of long waiting time for visible effects, discomfort during use, and risk of subcutaneous tissue damage due to microneedles penetrating deep into the stratum corneum, hindering widespread adoption.

Innovation Solution

A micro-projection massage head with micro-projections not exceeding 60 micrometers in height, combined with a vibrating mechanism operating at frequencies over 1000 times per minute, forms shallow delivery channels in the stratum corneum, ensuring effective ingredient absorption without discomfort and reducing the risk of tissue damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If microneedles with height of 100 micrometers or above are used to penetrate the stratum corneum, then transdermal absorption efficacy is improved, but user discomfort increases and risk of subcutaneous tissue damage occurs

Engineering Contradiction:
Improvetransdermal absorption efficacyVSAvoiduser discomfort and tissue damage risk
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the critical parameter of microneedle height from 100 micrometers or above to below 60 micrometers. This parameter change allows the microneedles to form delivery channels in the stratum corneum without penetrating too deeply, thereby maintaining transdermal absorption efficacy while reducing user discomfort and the risk of subcutaneous tissue damage.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If microneedles with height of 100 micrometers or above are used to form delivery channels, then effective ingredients can enter skin quickly, but visible effect time is extended

Engineering Contradiction:
Improveingredient absorption speedVSAvoidwaiting time for visible effect
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent changes the microneedle height parameter to below 60 micrometers, which creates shallower delivery channels that facilitate faster absorption of effective ingredients into the skin. This parameter optimization enables visible skincare effects to appear more quickly, reducing the waiting time while maintaining efficient ingredient delivery.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If microneedles with height of 100 micrometers or above are used, then delivery channels penetrate stratum corneum effectively, but technology popularization is hindered

Engineering Contradiction:
Improvedelivery channel formationVSAvoidtechnology popularization
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent optimizes the microneedle height parameter to below 60 micrometers, creating a safer and more comfortable experience for users. This parameter change removes the barriers of discomfort and safety concerns that have hindered the popularization of microneedle technology, while still maintaining effective delivery channel formation in the stratum corneum.

Inventive Principle:
Principle #35Parameter changes

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 micro-projection massage head allows immediate visual efficacy of skincare ingredients, enhances absorption, and reduces user discomfort, promoting faster skin improvement and safer application.

Implementation Method 1

a delivery channel is formed on the stratum corneum via microneedles

Methodology Applied
Scientific EffectMechanical penetration: Mechanical Force

Implementation Method 2

a vibrating mechanism operating at frequencies over 1000 times per minute

Methodology Applied
Scientific EffectVibration: Vibration

Data Source

PatentUS20250249227A1Micro-projection massage head and massager
Publication Date: 2025.08.07 SUZHOU NASHENG MICROELECTRONICS CO LTD
  • US20250249227A1 patent drawing
  • US20250249227A1 patent drawing
  • US20250249227A1 patent drawing

AI summary

The present disclosure relates to the field of microneedle transdermal enhancement technology, in particular to a micro-projection massage head and a massager, wherein the micro-projection massage head includes a massage nanochip, the micro-projections are provided on the massage nanochip, and the height of the micro-projection does not exceed 60 micrometers; the massager includes a vibrating mechanism and a micro-projection massage head; during operation, the vibration mechanism can drive the micro-projection massage head to vibrate, and the working vibration frequency of the micro-projection massage head is not less than 1000 times per minute. According to the present disclosure, the technical problems such as discomfort and easily causing damage to subcutaneous tissue during the application of the existing microneedle transdermal enhancement technology can be solved, and the improvement effect of the effective ingredients on the skin can be revealed in time.