Microneedle Array for Precise Dermal Filler Delivery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for skin augmentation, such as injecting dermal fillers, are painful, inefficient, and require professional administration, and cannot effectively address fine wrinkles or lines, often resulting in uneven results and waste of material.
Innovation Solution
The development of microneedles with biocompatible materials that deliver augmentation compositions directly to the dermis or hypodermis layer, allowing for easy, pain-free, and precise application of skin fillers, including hydroxyapatite and hyaluronic acid, using a microneedle array applicator that facilitates self-administration and reduces side effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional needle injection methods are used for skin augmentation, then dermal fillers can be delivered to the skin, but the procedure is painful and requires professional administration
Solution Approach 1:
The injection device is segmented into multiple microneedles arranged in an array, with each needle independently delivering filler material. This segmentation allows distributed penetration of the skin barrier, reducing the trauma and pain associated with traditional single-needle injections while enabling precise delivery to the dermis layer
Solution Approach 2:
The microneedles are designed as disposable, single-use components that are discarded after one application. This eliminates the need for sterilization and reduces the risk of infection, while the temporary nature of the needles ensures minimal tissue damage and rapid recovery, making the procedure more comfortable for patients
2Manufacturing precision
If traditional needle injection methods are used, then skin augmentation can be performed, but the results are uneven and material is wasted
Solution Approach 1:
Each microneedle in the array is configured with specific dimensions and properties tailored to deliver filler material to precise locations in the dermis. The needles vary in length and diameter to target different depths and areas, ensuring uniform distribution of the augmentation material and eliminating the waste associated with traditional injection methods
Solution Approach 2:
The injection approach transitions from a single-point vertical insertion to a multi-point spatial distribution across the treatment area. The array of microneedles delivers filler material simultaneously at multiple locations and depths, creating homogeneous results and maximizing material utilization by placing filler exactly where needed in the dermal layer
3Adaptability or versatility
If traditional needle injection is used, then dermal fillers can be administered, but fine wrinkles and lines cannot be effectively addressed
Solution Approach 1:
The microneedle array is configured with needles of varying lengths and diameters that can be selectively positioned to target specific areas such as fine wrinkles and lines. This local customization allows precise delivery of filler material to the dermis layer, effectively addressing fine skin imperfections that cannot be treated with traditional needle methods
Solution Approach 2:
The microneedle array delivers filler material to a greater depth and with finer precision than traditional needles, enabling treatment of fine wrinkles and lines. The controlled penetration depth and distributed delivery pattern allow partial treatment of specific areas, achieving the desired cosmetic effect without over-treatment or material waste
Data Source
AI summary
The present invention provides microneedles for administration of biocompatible materials effective in augmentation of skin or other skin treatments, and applicators comprising such microneedles. In particular, the microneedles and applicators of the present invention are aimed at filling the undesired lines, wrinkles, depressed scars and folds of a subject's facial and neck skin and restoring youthful fullness to the skin.