Micro Needle Zero-Point Detection for Consistent RF Treatment Depth

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Solution Overview

Problem

Existing invasive high-frequency treatment devices face issues with inconsistent micro needle placement due to design, assembly, or use, leading to inaccurate procedure depth and potential side effects or discomfort.

Innovation Solution

The device includes a control circuit that determines a procedure zero point by detecting a change in voltage during micro needle elevation, using a conductive plate to set a consistent initial location, and adjusts the elevation unit to ensure precise needle placement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If micro needles are accommodated within the procedure tip, then safety is improved by preventing premature contact with skin, but manufacturing precision deteriorates due to inconsistent needle locations

Engineering Contradiction:

ImprovesafetyVSAvoidneedle location consistency

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The system performs preliminary action by detecting the initial location of micro needles before the procedure and compensating for deviations. The control circuit measures the actual position of each needle tip relative to the procedure tip and calculates compensation values in advance, ensuring accurate placement during the actual procedure while maintaining safe accommodation during transport and storage.

Inventive Principle:

Principle #10Preliminary action

2Measurement precision

If micro needles are advanced to predetermined depth, then procedure precision is improved, but harmful factors increase due to inaccurate targeting causing side effects

Engineering Contradiction:

Improveprocedure depth accuracyVSAvoidside effects from inaccurate targeting

Core Design Contradiction:

Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The system implements feedback by measuring the actual position of micro needles after advancement and comparing it with the predetermined target depth. The control circuit uses this feedback information to calculate and apply compensation values, adjusting the needle positions to achieve accurate targeting and prevent side effects caused by incorrect depth placement.

Inventive Principle:

Principle #23Feedback

3Ease of operation

If micro needles are exposed outside the procedure tip, then ease of operation is improved by direct skin contact, but harmful factors increase causing discomfort and pain

Engineering Contradiction:

Improvedirect skin contactVSAvoiddiscomfort and pain

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary action by detecting and compensating for the initial location of micro needles before they contact the skin. By pre-adjusting the needle positions based on measured deviations, the system ensures that when needles are exposed and contact the skin, they are already positioned accurately, thereby maintaining ease of operation while preventing discomfort and pain from misplaced needles.

Inventive Principle:

Principle #10Preliminary action

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 solution ensures accurate and consistent micro needle placement, improving procedure precision and reducing discomfort or pain by preventing needles from protruding outside the planned location.

Implementation Method 1

detect a change in a voltage of at least one of the multiple micro needles

Methodology Applied

Scientific EffectVoltage detection: Electric Field

Implementation Method 2

controls the elevation unit to rise at a predetermined height from the procedure zero point

Methodology Applied

Scientific EffectMechanical elevation: Mechanical Force

Implementation Method 3

transfer radio frequency heat energy to the skin layer having a corresponding depth

Methodology Applied

Scientific EffectRadio frequency heating: Dielectric Heating

Implementation Method 4

frictional heat is generated within a tissue surrounding the micro needles due to the radio frequency

Methodology Applied

Scientific EffectFrictional heat generation: Friction

Data Source

PatentEP4663144A1Invasive high-frequency treatment device that can determine the initial location of the procedure at a constant time

Publication Date: 2025.12.17 VIOL CO LTD

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AI summary

Disclosed is an invasive high-frequency treatment device. The invasive high-frequency treatment device includes multiple micro needles including a first micro needle and a second micro needle, an elevation unit configured to raise the micro needle, and a control circuit configured to control the elevation unit. The control circuit determines a procedure zero point of the elevation unit corresponding to the multiple micro needles in an initialization step of the invasive high-frequency treatment device, and controls the elevation unit to rise at a predetermined height from the procedure zero point in a procedure step of the invasive high-frequency treatment device. Accordingly, it is possible to make consistent the location of the micro needles prior to a procedure regardless of conditions for a design, an assembly, and use.