Device for Generating a Non-Thermal Atmospheric Pressure Plasma

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

This invention relates to a portable device that generates a non-thermal (cold) plasma at atmospheric pressure using high-frequency excitation. The device is designed to be compact and hand-held, integrating all necessary components such as the high-frequency generator, resonance coil with a ferrite core, control electronics, and a gas nozzle inside a grounded metal housing. A removable conductive cap with a slit or hole can be attached for safety and process adjustments. The main goal is to provide a mobile plasma treatment tool that meets electromagnetic compatibility (EMC) regulations, making it suitable for use in medical, dental, cosmetic, and other sensitive environments without causing electromagnetic interference.

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

• Surface sterilization and antimicrobial treatment in medical and dental practices.
• Cosmetic procedures, such as skin rejuvenation or acne treatment, where cold plasma is applied to skin.
• Surface cleaning and preparation for improved adhesion in laboratories or manufacturing.
• Coating or functionalization of implants to enhance their biocompatibility.
• Localized treatment in hard-to-reach areas due to the device’s small size and adaptability.
• General mobile plasma applications where portability and EMC compliance are required.

BenefitsContent extracted from patent full text and abstract with AI.

• Portable and hand-held: Enables in-field or point-of-care use without bulky equipment constraints.
• Non-thermal plasma: Allows safe treatment of heat-sensitive surfaces, including biological tissues.
• EMC compliance: Designed to minimize electromagnetic interference, making it suitable for sensitive environments like hospitals and clinics.
• Versatility: Can use different process gases and interchangeable nozzles for various applications and treatments.
• Enhanced safety: Removable conductive caps help minimize user exposure and risk during sensitive treatments.
• Low power losses: Efficient design reduces energy consumption and heat generation, enabling longer operation and improved user comfort.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to a device for generating a cold, HF-excited plasma under atmospheric pressure conditions, comprising a metal housing functioning as a grounded electrode in the region of the emergent plasma, wherein an HF generator, an HF resonance coil having a closed ferrite core suitable for the high frequency, an insulating body acting as a gas nozzle, and a high-voltage electrode mounted in the insulating body are disposed in such a manner that they are permeated or circulated around by process gas. In a preferred embodiment, the device comprises an electrically conductive removable cap comprising a slit or hole in the front region. The invention can be used advantageously for plasma treatment of materials for cosmetic and medical purposes. By integrating the plasma nozzle and required control electronics in a miniaturized handheld device, or by using a short high-voltage cable, the invention allows compliance with the electromagnetic compatibility directives and allows the power loss to be minimized and thus a mobile application to be implemented.