Needleless Laser Injection Device for Skin Material Delivery
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Solution Overview
Problem
Conventional needleless syringes for delivering materials into the skin have complex configurations and low efficiency in medicine delivery.
Innovation Solution
A device with a simple configuration that uses a laser beam generator to increase internal pressure in a material inject tip, allowing a liquid material to penetrate the skin through a nozzle with a controlled inject cycle, optimizing penetration efficiency without needles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional needleless syringe is used to deliver material into skin, then the skin can be penetrated without a needle, but the configuration becomes complicated and the efficiency of delivering medicine is low
Solution Approach 1:
The patent replaces the mechanical needle penetration system with a laser-based pressure generation system. The laser beam irradiates a liquid medium in a chamber, converting optical energy to thermal energy, which generates pressure to eject material through a nozzle without mechanical needle penetration, thereby simplifying the overall device configuration while maintaining needleless injection capability
Solution Approach 2:
The patent changes the physical state and properties of the injecting medium from a solid or liquid material directly to a liquid medium that is irradiated by laser. By controlling parameters such as laser power, injection pressure, and material viscosity, the system achieves efficient material delivery without complex mechanical structures
2Ease of operation
If a conventional needleless syringe is used to deliver material into skin, then the skin can be penetrated without a needle, but the efficiency of delivering medicine is low
Solution Approach 1:
The patent employs periodic laser irradiation to generate pressure pulses that eject material in cycles. This periodic action allows for controlled, efficient material delivery by repeatedly pressurizing the liquid medium and ejecting it through the nozzle, improving productivity compared to continuous or single-pulse conventional methods
Solution Approach 2:
The patent utilizes phase transition of the liquid medium through laser heating. The laser irradiation increases the temperature and pressure of the liquid, causing it to transition from a low-pressure state to a high-pressure state, which then ejects the material efficiently through the nozzle, thereby improving delivery efficiency
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
Improves the efficiency of material penetration into the skin while minimizing remaining material that does not penetrate, enhancing the delivery process.
Implementation Method 1
a laser beam generator configured to generate a laser beam with power received from the power supply
Implementation Method 2
configured to allow a laser beam emitted from an outside to pass therethrough and reach the liquid accommodated in the pressure chamber
Implementation Method 3
configured to seal the pressure chamber and be transformed by pressure generated as the liquid is irradiated with the laser beam
Implementation Method 4
configured to inject an inject material accommodated therein at an end thereof as internal pressure is increased by the laser beam emitted from the laser beam generator
Data Source
AI summary
The present invention relates to a device for injecting a material, the device comprising the laser generation unit generates laser beams at a repetition rate of 15 to 25 Hz such that an inject material is injected so as to penetrate into skin through the surface of skin. As described above, a device for delivering a material by applying an optimum inject cycle according to the present invention is advantageous in that a material can be injected at an optimum inject cycle and made to penetrate into skin without a needle, thereby improving the penetration efficiency and minimizing the residual material which has failed to penetrate.