Layered Needle Group Circuit Layout for Dense Skin Treatment
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Solution Overview
Problem
Conventional skin treatment devices face challenges in densely disposing needles due to the disposition structure of the needles connected to the electric circuit, leading to reduced treatment effectiveness and increased risk of short circuits.
Innovation Solution
A skin treatment device with a needle group comprising a first and second needle group fixed to separate circuit boards, allowing for dense needle arrangement without short circuits, where the second needle group protrudes through perforations in the first circuit board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If needles are connected to electric circuit and fixed to support plate, then electrical connection is achieved, but wide area is formed between needles reducing treatment effectiveness
Solution Approach 1:
The support structure is segmented into multiple layers: a first support plate for fixing needles and a second support plate with elastic members. This segmentation allows the electrical connection function to be separated from the needle positioning function, enabling denser needle arrangement while maintaining reliable electrical connections through the circuit board and elastic contact mechanism.
2Strength
If needle fixing part diameter is increased, then needle fixation is secured, but needle density in limited area is reduced
Solution Approach 1:
The solution transitions from a single-plane support structure to a multi-layer vertical arrangement. The first support plate holds needles at one level while the second support plate with elastic members provides contact from another dimension (below), enabling secure fixation with smaller footprint and higher needle density in the limited treatment area.
3Productivity
If needles are densely disposed, then treatment effectiveness is improved, but risk of short circuits increases
Solution Approach 1:
A circuit board is introduced as an intermediary component between the needles and the electrical connection system. The circuit board provides isolated electrical pathways for each needle, allowing dense physical arrangement of needles while maintaining electrical insulation and preventing short circuits through the structured circuit trace design.
4Device complexity
If single support plate is used, then structure is simple, but needle arrangement flexibility is limited
Solution Approach 1:
The support system is divided into functionally independent segments: the first support plate for mechanical needle fixation and the second support plate with elastic members for electrical contact and positioning. This segmentation provides modular flexibility in needle arrangement while keeping each segment's structure relatively simple and manageable.
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 solution enables dense needle disposition, reducing non-treatment areas and preventing short circuits, thereby enhancing treatment effectiveness and safety.
Implementation Method 1
an elastic body configured to elastically support the support plate from the one side wall of the cover, wherein the elastic body comprises a first elastic part configured to elastically support a first region, which is a portion of an edge part of the support plate
Implementation Method 2
a needle part which is inserted into a dermis layer to emit RF high-frequency energy
Implementation Method 3
an optical cable for providing laser generated from a laser generator, a handpiece having multiple lenses installed inside for amplifying or expanding the laser received from the optical cable
Data Source
AI summary
A skin surgery device equipped with a needle group and a driving method thereof are disclosed. The skin surgery device equipped with a needle group, according to an embodiment of the present invention, comprises: a needle group comprising a plurality of needles; a first circuit board to which a first needle group that is a part of the needle group is fixed and in which a perforated portion is formed; and a second circuit board to which a second needle group that is the other part of the needle group is fixed, wherein the second needle group is formed to pass through and protrude out of the perforated portion of the first circuit board.