Wound treatment with a microwave plasma source
Wound care is one of the fastest growing areas in health care today. Especially infections of wounds, like long lasting ulcers, are detrimental to wound healing and the daily challenge of health care professionals. The aim of this cold plasma technology is to reduce the bacterial load in chronic wounds and to stimulate the wound healing process.
Cold plasma is an ionized gas at room temperature. In this case the plasma is generated by a micro wave plasma source working with air as process gas. The produced air plasma contains ozone (O3) and nitric oxide (NO) in concentrations depending on the gas flow within the plasma source. These reactive species on the one hand support the decontamination and on the other hand promote the regeneration and healing of the wound. The plasma treatment is a contact-free and painless procedure in which the plasma is set free in distance of few millimetres to the wound.
Special features of the described micro plasma source are:
- low voltage supply of 24 V and low energy consumption
- compact dimensions for easy handling also in small spaces
- adjustable NO/O3 concentrations for personalized treatments
The technology is available for in-licensing or joint development under research cooperation agreement.
Laboratory prototypes with one plasma electrode have been realized and tested with air plasma.
Three patent applications have been filed:
WO 2006075008: “Mikroplasmaarray”,
DE 102007020419 A1: “Elektrode für Plasmaerzeuger”,
DE 102010001395 A1: “Miniaturisierbare Plasmaquelle”.