Cold Plasma Handheld Device for Plasma Treatment of Surfaces

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention is a portable, hand-held device (cold plasma tool) for surface treatment using a cold plasma jet. Unlike previous devices which required bulky external adjustment circuits (matchboxes), this tool integrates the necessary electrical components (coil and capacitor) directly into the plasma nozzle. This compact design allows for flexible, convenient, and manual operation, making it suitable for industrial and medical applications that require treatment, modification, or coating of surfaces at atmospheric pressure and without excessive heat.

Use CasesContent extracted from patent full text and abstract with AI.

• Surface cleaning and activation in manufacturing lines (e.g., plastics, metals, electronics)
• Sterilization or disinfection of medical instruments and biological surfaces
• Surface modification for improved adhesion of paints, coatings, or adhesives
• Etching or patterning of materials for microelectronics or packaging
• Preparation and coating of medical implants for enhanced biocompatibility
• Decontamination in food packaging materials
• Robotic or automated plasma treatments in industrial processes
• Treatment of heat-sensitive materials that cannot withstand high temperatures

BenefitsContent extracted from patent full text and abstract with AI.

• Compact and hand-held design enables manual use or robotic integration
• Removes the need for bulky, external adjustment units, improving flexibility and mobility
• Enables cold (non-thermal) plasma operation at atmospheric pressure, allowing treatment of heat-sensitive surfaces
• Facilitates real-time and on-site surface treatment, modification, or sterilization
• Cost-effective compared to traditional vacuum-based plasma systems
• Improved process control and easier adaptation to various applications and geometries

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

Plasma tool for production of a cold plasma stream with a plasma nozzle including a hollow body (4) for feeding the process gas, a frequency generator and at least one coil (6) or a coil containing adaptation network for production of a the required voltage. At least one coil of the network is integrated into the plasma nozzle.