Magnetized Needle Tattoo Removal Device

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Solution Overview

Problem

Current tattoo removal methods, including laser irradiation, often fail to completely erase pigment traces without causing unsightly alterations to the treated surface and require multiple sessions.

Innovation Solution

A motorized and non-motorized device using magnetized needles with a magnetic induction field greater than 100 Gauss, capable of moving in translation or rotation, to attract and extract tattoo pigments from the skin or lips, enhancing the effectiveness of tattoo removal by leveraging magnetic attraction and physico-chemical effects.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If laser irradiation technique is used to erase pigment traces, then some pigment removal is achieved, but complete erasure is not always obtained and additional unsightly alteration of the treated surface occurs

Engineering Contradiction:
Improvecomplete erasure of pigment traceVSAvoidunsightly alteration of treated surface
Core Design Contradiction:
Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the optical/mechanical laser system with a magnetic field-based system. Magnetized needles generate magnetic fields that attract and extract pigment particles through magnetic force, eliminating the thermal and mechanical damage caused by laser irradiation while achieving complete pigment removal.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the fundamental parameter of interaction from optical energy (laser) to magnetic field strength. By controlling magnetic field intensity and needle magnetization levels, the system achieves selective pigment extraction without altering the surrounding skin tissue, thus preventing unsightly surface changes.

Inventive Principle:
Principle #35Parameter changes

2Manufacturing precision

If tattoo removal composition is used to dissolve and release pigments, then good results are obtained, but the number of sessions required is reduced only partially

Engineering Contradiction:
Improvecomplete erasure of pigment traceVSAvoidnumber of sessions necessary
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent combines chemical dissolution (tattoo removal composition) with magnetic extraction (magnetized needles) into a single integrated system. The chemical composition loosens pigment bonds while the magnetic field simultaneously attracts and extracts pigment particles, achieving complete removal in fewer sessions compared to either method alone.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent enables continuous pigment extraction during a single treatment session. The motorized drive device continuously moves the magnetized needles across the treatment area, maintaining constant magnetic extraction action throughout the session, thereby reducing the total number of sessions required compared to intermittent chemical methods.

Inventive Principle:
Principle #20Continuity of useful action

3Manufacturing precision

If multiple sessions are used for tattoo removal, then complete erasure is achieved, but time and treatment duration increase

Engineering Contradiction:
Improvecomplete erasure of pigment traceVSAvoidtreatment efficiency per session
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The patent applies preliminary chemical treatment (tattoo removal composition) to the skin before magnetic extraction. This preliminary action loosens and destabilizes pigment particles, making them more susceptible to magnetic attraction and extraction during the same session, thereby achieving complete removal in fewer treatments.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces dynamic movement of magnetized needles through motorized drive devices. The needles move continuously across the treatment area, dynamically scanning and extracting pigment particles throughout the session. This dynamic action increases treatment efficiency and productivity compared to static methods requiring multiple sessions.

Inventive Principle:
Principle #15Dynamics

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 devices efficiently remove tattoo pigments with reduced sessions, minimizing surface alteration and improving the cosmetic treatment process by facilitating the extraction of metallic compounds through magnetic interaction.

Implementation Method 1

The Applicant has noted that the devices described above are useful for extracting an encrusted metallic compound using the effect of magnetic attraction of this compound by said at least one magnetized needle.

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Data Source

PatentEP3784319B1Device for treating a part of the human body comprising at least one magnetised needle
Publication Date: 2023.12.06 PARADIS LINE
  • EP3784319B1 patent drawingFigure 1~3
  • EP3784319B1 patent drawingFigure 4~7

AI summary

The invention concerns, in particular, a motorised device (1) for treating a part of the human body, comprising at least: - a treatment portion comprising at least one magnetised needle (14) intended to come into contact with a part of the human body, and - a motorised drive device linked to the treatment portion and capable of imposing a movement on said at least one magnetised needle, and, when this movement is a translational movement (T), the treatment portion comprises a single magnetised needle or a plurality of magnetised needles secured together by welding.