Carbon Dioxide Shampoo Apparatus Scalp Treatment
Solution Overview
Problem
Traditional aerosol shampoo containers rely on hazardous and environmentally harmful propellants, posing safety risks and environmental concerns, while also failing to effectively penetrate the scalp for treatment and leaving residue.
Innovation Solution
A pressurized carbon dioxide shampoo system that uses carbon dioxide as both a propellant and an active ingredient, optionally with detergents like zinc pyrrolidone carboxylic acid and minoxidil, to create a safe and effective cleansing solution without the need for toxic propellants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If traditional propellants (liquefied petroleum gases, chlorofluorocarbons, methyl ethyl ether, dimethyl ether) are used in aerosol containers, then appropriate vapor pressure is achieved for spray expulsion, but flammability, toxicity, and environmental pollution occur
Solution Approach 1:
The patent changes the chemical composition parameter by replacing traditional hydrocarbon and fluorocarbon propellants with carbon dioxide. This parameter change maintains the necessary vapor pressure for aerosol dispensing while eliminating flammability and environmental pollution, as carbon dioxide is non-flammable and does not deplete ozone
Solution Approach 2:
The patent converts the previously harmful role of propellants into a beneficial dual-function system where carbon dioxide serves both as the propellant for spray expulsion and as an active therapeutic ingredient for scalp treatment, thereby transforming a harmful necessity into a beneficial component
2Ease of operation
If aerosol containers are disposed of, then convenience is achieved, but explosive or flammable hazards remain due to propellant material
Solution Approach 1:
The patent eliminates the hazardous disposal problem by replacing flammable and explosive propellants with carbon dioxide, which is non-flammable and non-explosive. This allows the aerosol container to be disposed of safely without fire or explosion risks, while maintaining the convenience of aerosol dispensing
3Reliability
If percutaneous penetration of active agent is achieved, then treatment effectiveness is improved, but irritation or discomfort may occur
Solution Approach 1:
The patent changes the chemical environment parameter by using carbon dioxide as both propellant and active ingredient. Carbon dioxide provides effective percutaneous penetration for treating scalp conditions while being non-irritating and comfortable for the user, unlike many traditional active ingredients that require harsh solvents or propellants
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 carbon dioxide system provides a safe, non-toxic, and environmentally friendly alternative for shampoo application, effectively removing sebacic acid from the scalp and promoting scalp health without leaving residue, while reducing the hazards associated with traditional propellants.
Implementation Method 1
The carbon dioxide solvates/makes soluble and aids removal of sebacic acid on the scalp
Implementation Method 2
Propellants provide the appropriate vapor pressure within aerosol containers for the expulsion of the formulation as a spray or semisolid when the valve is opened
Data Source
AI summary
The invention comprises a shampoo apparatus and method of use thereof, comprising: (1) a pressurized container, a pressure in the container in a range of seventy to two hundred pounds per square inch and (2) a shampoo in the container, the shampoo comprising greater than five thousand parts per million carbon dioxide, where the shampoo optionally contains a detergent, zinc pyrrolidone carboxylic acid, and/or minoxidil. The carbon dioxide in the container is optionally added as a solid or a liquid and/or is chemically formed inside the container, such as from any of a carbonic acid, a bicarbonate, a bicarbonate salt, and/or a carbonate. The carbon dioxide solvates/makes soluble and aids removal of sebacic acid on the scalp.