Motor-Driven Needle Actuator for Controlled Tattoo Removal
Solution Overview
Problem
Current tattoo removal methods are difficult, costly, and painful, failing to provide an efficient and effective solution for individuals seeking to remove unwanted tattoos or permanent makeup.
Innovation Solution
An actuating device with a motor-driven reciprocating rod and adjustment mechanism, paired with a needle cartridge and fluid delivery system, allows for controlled depth penetration and fluid delivery to facilitate efficient tattoo removal without rotating the needle cartridge, ensuring consistent and accurate needle penetration and minimizing discomfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If tattoo removal is performed using conventional methods, then tattoo removal can be achieved, but the process is difficult, costly, and painful
Solution Approach 1:
The patent replaces conventional mechanical tattoo removal methods (such as laser ablation or surgical excision) with a controlled fluid injection system. The system uses a needle cartridge that delivers fluid directly into the tattooed skin through controlled punctures, substituting mechanical destruction with a chemical/biological fluid-based approach that is less painful and more controlled
Solution Approach 2:
The invention changes the fundamental parameter of tattoo removal from mechanical energy delivery (laser, surgery) to fluid pressure and composition control. By adjusting fluid pressure, flow rate, and chemical composition, the system achieves effective tattoo removal with reduced pain and improved patient comfort compared to conventional mechanical methods
2Productivity
If needle depth is not controlled, then tattoo removal may be more aggressive, but it increases pain and risk of damage to deeper skin layers
Solution Approach 1:
The system implements dynamic control of needle penetration depth through a movable rod housing that can be adjusted relative to the motor housing. This allows the needle cartridge to achieve the precise depth required for effective tattoo removal while preventing excessive penetration that would cause pain or damage to deeper skin layers, optimizing both efficiency and safety
3Reliability
If fluid delivery is not controlled, then tattoo removal may be more effective, but fluid leakage occurs and precision is reduced
Solution Approach 1:
The system incorporates feedback control through sensors that monitor fluid pressure, flow rate, and needle position in real-time. This feedback enables the control system to adjust fluid delivery parameters dynamically, ensuring precise fluid injection into the target area while preventing leakage and maintaining optimal conditions for effective tattoo removal
4Measurement precision
If the needle cartridge is rotated for adjustment, then depth control may be achieved, but rotational movement compromises fluid delivery alignment
Solution Approach 1:
The system segments the adjustment function from the fluid delivery function by using a linearly movable rod housing for depth control while keeping the needle cartridge orientation fixed. This segmentation allows independent optimization of both depth control and fluid delivery alignment, eliminating the compromise that would result from rotational adjustment
Data Source
AI summary
Embodiments of an actuating device for actuating a needle cartridge and puncturing an epidermis with controlled depth. The actuating device includes a motor housed in a motor housing, an actuating rod driven by the motor and configured to actuate in a reciprocating motion, and an adjustment mechanism. The actuating rod is housed in a rod housing, the rod housing forming a device aperture configured to receive a needle cartridge and to attach to the needle cartridge. The adjustment mechanism interfaces with the rod housing and is configured to adjust a position of the rod housing relative to the motor housing while not rotating the rod housing relative to the motor housing.