High Velocity Liquid-Gas Stream Device for Scalp Treatment
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Solution Overview
Problem
Existing devices for tissue cleansing and therapeutic substance application fail to effectively remove small particles and allow for variable substance concentrations, leading to inefficient treatment, especially in areas like the scalp where hair is present.
Innovation Solution
A system that accelerates a gas flow through nozzles to create a high-velocity gas stream, into which therapeutic liquids are introduced to form droplets, allowing for variable substance concentrations and efficient application to tissue surfaces, including the scalp, with the option to cleanse and apply substances topically or subcutaneously.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a fluid stream is employed to irrigate a tissue surface, then the tissue surface can be irrigated, but a boundary layer is formed which prevents removal of small particles
Solution Approach 1:
The patent employs a liquid-gas mixture stream where gas (typically oxygen or air) is mixed with liquid therapeutic substance and accelerated through a nozzle to create a high-velocity jet. The gas phase prevents boundary layer formation by maintaining turbulent flow and preventing liquid accumulation, while the liquid phase delivers therapeutic substances. This pneumatic-hydraulic combination resolves the contradiction by eliminating the stagnant boundary layer that traps particles while still enabling effective tissue irrigation and treatment.
Solution Approach 2:
The patent changes the velocity parameter of the fluid stream to supersonic or near-supersonic speeds (Mach 0.8-1.2) through specially designed nozzles. This extreme velocity parameter change prevents boundary layer formation by creating a jet that rapidly dissipates energy and maintains turbulent flow patterns. The high kinetic energy of the supersonic stream prevents liquid accumulation on the tissue surface, thereby eliminating the boundary layer effect that traps particles while still delivering therapeutic substances effectively.
2Device complexity
If a single liquid container is used, then the device structure is simple, but the concentration of therapeutic substances cannot be varied
Solution Approach 1:
The patent divides the liquid delivery system into separate containers for different therapeutic substances or solutions, each container being independently controllable. This segmentation allows the operator to select and mix different substances in varying proportions to achieve desired concentrations for different treatment conditions. The segmented container system maintains relative structural simplicity while providing flexible concentration control through selective activation of different containers.
Solution Approach 2:
The patent employs dynamic control mechanisms that allow real-time adjustment of liquid flow rates from different containers during operation. Through variable flow control valves and programmable delivery sequences, the system can dynamically adjust the concentration of therapeutic substances being delivered to the tissue. This dynamic capability enables concentration variation without requiring complex pre-mixed solutions or manual preparation, maintaining device simplicity while achieving therapeutic versatility.
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 system efficiently removes contaminants and delivers therapeutic substances to tissue surfaces, including the scalp, with the ability to penetrate and provide effective treatment, even in the presence of hair, by preventing the formation of a stagnant boundary layer and allowing precise control over substance delivery.
Implementation Method 1
accelerating a flow of gas... through at least one gas discharge nozzle so as to provide a gas discharge flow at an elevated velocity
Implementation Method 2
introducing into the elevated velocity gas discharge flow at least one flow of therapeutic liquid... thereby to fragment the at least one flow of therapeutic liquid into a stream of therapeutic droplets, and to accelerate the stream to an accelerated velocity similar to the velocity of the gas discharge flow
Data Source
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AI summary
A device and a method for improved treatment of tissue by direct application thereto of desired therapeutic substances in the form of a stream of therapeutic droplets carried in a high velocity gas produced by accelerating a flow of gas through at least one gas discharge nozzle so as to provide a gas discharge flow at an elevated velocity, and introducing into the elevated velocity gas discharge flow at least one flow of therapeutic liquid, through at least one liquid discharge nozzle, thereby fragmenting the at least one flow of therapeutic liquid into a stream of therapeutic droplets, and accelerating the stream to an accelerated velocity similar to the velocity of the gas discharge flow, and then applying the accelerated therapeutic droplet stream to a tissue mass desired for therapeutic treatment thereby.