Dual-Frequency Tattoo Needle Vibration for Lower Insertion Force
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Solution Overview
Problem
Conventional tattooing methods cause pain and skin trauma due to the impact of needles on the skin, leading to bleeding, scabbing, and an immune response.
Innovation Solution
A tattoo device with a first oscillator inducing vibrations at a frequency of 1-1000 Hz longitudinally and a second oscillator at a higher frequency of 5-200 kHz to lower insertion force and reduce pain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional tattooing methods use needle impact to penetrate skin, then tattoo application is achieved, but pain and skin trauma occur
Solution Approach 1:
The patent applies mechanical vibration to the needle assembly at ultrasonic frequencies (20-100 kHz) to reduce insertion force and minimize skin trauma. The vibration causes the needle to oscillate rapidly, allowing it to penetrate skin layers with reduced impact force, thereby decreasing pain and trauma while maintaining effective tattoo application.
Solution Approach 2:
The patent changes the operational parameters of the needle by introducing high-frequency vibration (20-100 kHz) in addition to the standard reciprocating motion. This parameter change transforms the needle's interaction with skin from high-impact penetration to low-impact vibrational penetration, reducing pain and trauma while achieving the same tattooing function.
2Object-affected harmful factors
If needle vibration frequency is increased to reduce insertion force, then pain is reduced, but device complexity increases
Solution Approach 1:
The patent merges two oscillator systems into a single integrated device - a first oscillator for longitudinal vibration (1-1000 Hz) and a second oscillator for high-frequency vibration (5-200 kHz). By combining these functions in one device, the patent achieves reduced pain through dual-frequency vibration while managing overall device complexity through integration rather than separate components.
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 dual-frequency vibration significantly reduces the sensation of pain and skin trauma during tattooing by minimizing the forces required to penetrate the skin layers.
Implementation Method 1
a first oscillator which is coupled, in use, to a needle having a sharps end, wherein the first oscillator is arranged and adapted to induce vibrations at a frequency from 1-1000 Hz substantially longitudinally along an axis of the needle in order to cause, in use, the sharps end to penetrate skin
Implementation Method 2
a second oscillator which is coupled, in use, to the needle; wherein the second oscillator is arranged and adapted to induce vibrations at a higher frequency than the first oscillator and at a frequency from 5-200 kHz in order to lower the insertion force required to penetrate skin layers
Data Source
AI summary
A tattoo device is provided comprising a housing having a first oscillator which is coupled, in use, to a needle assembly having a sharps end. The first oscillator is arranged and adapted to induce vibrations at a frequency from 1-1000 Hz substantially longitudinally along an axis of the needle assembly in order to cause, in use, the sharps end to penetrate skin. The tattoo device further comprises a second oscillator which is also coupled, in use, to the needle assembly, wherein the second oscillator is arranged and adapted simultaneously to induce vibrations at a higher frequency than the first oscillator and in particular at a frequency from 5-200 kHz in order to lower the insertion force required to penetrate skin layers.