Hydrogen Peroxide Sterilization Pouch with Permeable Membrane

The patent utilizes the phase transition of hydrogen peroxide from liquid to vapor form. The sterilization device contains hydrogen peroxide in liquid form and allows it to evaporate and fill the sealed container as vapor, which then sterilizes the medical device. This eliminates the need for drying because the vapor condenses on the device surface without leaving harmful residues that would interfere with subsequent use.

The patent changes the physical state parameter of hydrogen peroxide from aqueous solution to pure vapor phase. By controlling the concentration and phase of hydrogen peroxide, the system achieves effective sterilization while avoiding the wetness issue associated with aqueous solutions. The hydrogen peroxide is applied as vapor at controlled concentrations that ensure sterilization effectiveness without requiring post-sterilization drying.

The patent divides the sterilization process into a simple sealed container system that can be individually used for each medical device. Instead of one large industrial machine, the system uses multiple small, portable sterilization containers, each capable of sterilizing a single device. This segmentation makes the technology suitable for individual use in remote locations, during travel, or in emergency situations without requiring complex industrial infrastructure.

The sterilization device is designed to be self-contained and self-operating. The user simply places the medical device in the sealed container with the hydrogen peroxide source, closes it, and the hydrogen peroxide automatically evaporates and sterilizes the device without requiring external power, control systems, or complex operation. This self-service approach eliminates the need for industrial-grade machines while achieving effective sterilization.

The patent carefully controls the concentration parameter of hydrogen peroxide, using formulations that achieve effective sterilization at lower concentrations compared to traditional methods. The system maintains hydrogen peroxide at controlled concentrations that are sufficient for sterilization while being safer for user handling and less corrosive to medical devices and container materials.

The patent introduces a controlled environment (sealed container) as an intermediary between the hydrogen peroxide and the external environment. This intermediary allows the use of effective hydrogen peroxide concentrations for sterilization while containing any potentially harmful effects within the sealed system. The container protects both the user and the medical device from direct exposure to high concentrations, enabling effective sterilization with reduced safety and compatibility concerns.