RF Microneedle Circuit Board Layout for Dense Needle Spacing
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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
The device includes a first and second needle group fixed to separate circuit boards, with the second group protruding through perforations in the first board, allowing for denser needle arrangement without short circuits, and incorporating a needle circuit board to supply RF high-frequency energy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If needles are connected to electric circuit and fixed to separate support plate, then electrical connection is achieved, but wide area is formed between needles reducing treatment effectiveness
Solution Approach 1:
The patent merges the support plate and circuit board into a single integrated structure. The circuit board serves dual functions as both the electrical connection medium and the support structure for the needles. This eliminates the separate support plate, allowing needles to be arranged more densely without creating wide untreated areas between them, while maintaining reliable electrical connections through the circuit board's conductive traces.
2Productivity
If needle fixing part diameter is reduced to densely dispose needles, then needle density increases, but short circuit risk increases
Solution Approach 1:
The patent applies local quality by providing electrical isolation only where needed - specifically at the needle fixing parts on the circuit board. Each needle fixing part is electrically isolated from adjacent fixing parts through insulation techniques, while the rest of the circuit board maintains its conductive properties for RF energy transmission. This allows needles to be densely arranged with small fixing part diameters without increasing short circuit risk, as each needle's electrical connection is locally isolated.
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
This configuration enables more effective treatment by densely arranging needles, reducing non-treated skin area and preventing short circuits, thereby enhancing safety and convenience.
Implementation Method 1
irradiating radio frequency (RF) high-frequency energy through the needle
Data Source
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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.