Needleless Hot-Liquid Injection for Localized Collagen Remodelling
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Solution Overview
Problem
Existing skin anti-aging treatments for collagen remodelling, such as those using laser radiation or ultrasound, struggle with precise control of energy deposition and localization, often causing visible wounds and discomfort.
Innovation Solution
A needleless injection device that heats a liquid to a controlled temperature (65° C.-80° C.) and injects it into the skin using micro-jets to create micro-burns, allowing for precise control over energy deposition and localization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If laser radiation or ultrasound is used to cause micro-burns for collagen remodelling, then collagen remodelling is stimulated, but precise control of energy deposition and localization is difficult
Solution Approach 1:
The patent replaces complex optical (laser) and acoustic (ultrasound) energy delivery systems with a simpler mechanical injection system. A syringe or injection device delivers liquid directly to the skin surface, where it is heated by a separate heating element. This mechanical approach provides precise control over injection volume, depth, and location, while the heating element can be positioned to deliver thermal energy exactly where needed, solving the control and localization problems of optical/acoustic methods.
Solution Approach 2:
The patent introduces liquid as an intermediary carrier between the injection device and the skin. The liquid is heated to a controlled temperature (40-60°C) and injected into the skin, where it delivers both mechanical trauma (from injection) and thermal energy (from the heated liquid). This intermediary approach allows independent control of injection parameters and temperature, achieving precise energy deposition without the complexity of direct optical or acoustic methods.
2Reliability
If laser radiation or ultrasound is used to cause micro-burns, then collagen remodelling is stimulated, but skin surface damage and visible wounds occur
Solution Approach 1:
The patent changes the temperature parameter of the injected liquid to an optimal range (40-60°C) that causes controlled micro-burns without excessive damage. This parameter control ensures sufficient thermal stimulation for collagen remodelling while avoiding skin surface damage and visible wounds. The liquid temperature can be precisely adjusted based on patient needs and treatment goals, providing reliable collagen stimulation with minimal harmful effects.
Solution Approach 2:
The injected liquid serves multiple functions simultaneously: it acts as a trauma agent (from injection), a heat transfer medium (from heated liquid), and a therapeutic carrier (containing collagen-stimulating substances). The liquid itself is the vehicle for delivering both mechanical and thermal effects, eliminating the need for separate treatment components and reducing overall skin damage by consolidating effects into a single controlled injection.
3Object-affected harmful factors
If needleless injection is used to avoid trauma, then skin damage is reduced, but control over energy deposition and localization is lost
Solution Approach 1:
The patent replaces optical (laser) and acoustic (ultrasound) energy delivery systems with a simpler mechanical injection system. A syringe or injection device delivers liquid directly to the skin surface, where it is heated by a separate heating element. This mechanical approach provides precise control over injection volume, depth, and location, while the heating element can be positioned to deliver thermal energy exactly where needed, solving the control and localization problems of optical/acoustic methods.
Solution Approach 2:
The patent introduces liquid as an intermediary carrier between the injection device and the skin. The liquid is heated to a controlled temperature (40-60°C) and injected into the skin, where it delivers both mechanical trauma (from injection) and thermal energy (from the heated liquid). This intermediary approach allows independent control of injection parameters and temperature, achieving precise energy deposition without the complexity of direct optical or acoustic methods.
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 device enables improved collagen remodelling by precisely controlling the amount and depth of energy deposited in the skin, reducing trauma and enhancing collagen production while minimizing visible damage.
Implementation Method 1
passing an alternating current through at least one conductive coil, by a connected alternating current source, wherein the at least one conductive coil surrounds the opening, and thereby creating an alternating magnetic field in the opening; heating, by the alternating magnetic field, a conductive or semi-conductive element of the needleless injection unit
Implementation Method 2
transferring heat, from the conductive element, to the liquid stored in the liquid reservoir
Implementation Method 3
heating, by a heater unit of the device, a liquid to a temperature configured to cause micro-burns to the skin of the subject when the liquid is in contact with the skin of the subject
Data Source
AI summary
Embodiments of the invention provided methods and systems for collagen remodelling of an area of skin of a subject using a collagen remodelling device. The method may comprise heating, by a heater unit of the device, a liquid to a temperature configured to cause micro burns to the skin of the subject when the liquid is in contact with the skin of the subject and injecting the liquid, using a needleless injection unit of the device, from a liquid reservoir of the device into the area of skin of the subject.