Electromagnetic Tattoo Machine Drive Without Mechanical Vibration
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Solution Overview
Problem
Existing tattoo and microneedle machines are bulky, cumbersome, prone to overheating and vibration, noisy, and difficult to sterilize, posing health and ergonomic challenges.
Innovation Solution
A contactless, motion-free microneedle drive apparatus using electromagnets to magnetically actuate needles, eliminating mechanical components and allowing for programmable control of needle movement, reducing size, and enabling sterilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional electric coils and mechanical components are used to drive the needle, then the needle can be actuated, but the device becomes bulky, heavy, and cumbersome
Solution Approach 1:
The patent replaces the traditional mechanical coil and armature bar system with an electromagnetic field-based actuation system. Electromagnets generate magnetic fields that directly interact with ferromagnetic components in the needle assembly, eliminating the need for mechanical linkages and reducing overall device mass while maintaining needle actuation capability.
Solution Approach 2:
The patent extracts and removes unnecessary mechanical intermediaries (armature bar, coil frames) from the system. By directly coupling electromagnetic fields with the needle assembly's ferromagnetic components, the design eliminates redundant mechanical parts that contribute to bulk and weight.
2Object-generated harmful factors
If traditional mechanical components are used, then the needle can be driven, but the device produces vibration and heat
Solution Approach 1:
The patent substitutes mechanical vibration-based actuation with electromagnetic field interaction. The magnetic fields directly drive ferromagnetic components without mechanical contact, eliminating vibration generation. The system also incorporates heat dissipation features to manage thermal energy from electromagnetic components.
3Ease of manufacture
If exposed mechanical components and electrical connections are used, then the device can be assembled, but cleaning and sterilization become limited or impossible
Solution Approach 1:
The patent employs sealed housing structures with smooth, non-porous surfaces that allow complete immersion sterilization. The electromagnetic components and electrical connections are enclosed within sealed barriers, creating a sterile barrier that prevents contamination while maintaining internal functionality.
Solution Approach 2:
The patent replaces exposed mechanical and electrical components with sealed electromagnetic systems. The magnetic field transmission occurs through non-contact interfaces that maintain sealing integrity, allowing the entire device to be sterilized without disassembly or special handling.
4Object-generated harmful factors
If traditional coil systems are used, then the needle can be actuated, but the device is noisy
Solution Approach 1:
The patent replaces mechanical coil actuation with electromagnetic field-based needle control. The magnetic fields directly drive the needle assembly without mechanical contact or friction, eliminating noise generation while maintaining precise needle actuation control.
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 provides a lightweight, vibration-free, and ergonomically improved microneedle system that can be easily sterilized, enhancing operator comfort and extending usage time.
Implementation Method 1
the electromagnet is oriented such that it develops a magnetic field aligned substantially parallel to the axis and which magnetically interacts with and drives a ferrous component
Implementation Method 2
at least one electromagnet within the housing which is isolated from the needle cartridge
Data Source
AI summary
A magnetically driven tattoo machine is disclosed, which has a substantially radially symmetric exterior shape and be driven by a sensor-controlled electromagnetic coil. The machine has no oscillating mechanical components, and thus reduces or eliminates vibration. The machine may include a housing mechanically isolated from a needle cartridge or subcomponents that can be disassembled and sterilized. The electromagnet may be controlled by a sensor integral with the coil, housed within the machine, or within an external power supply. The machine may be powered by internal battery or by an external power source. The machine may also be controlled wirelessly.