Patent ID: 8900521
Filing Date: 2014-12-02
Classification: A61L,A61N,H05H

Abstract:
1. A manoeuvrable applicator assembly for plasma sterilisation apparatus, the applicator assembly being insertable into a natural orifice of a human or animal body and comprising: a flexible cable assembly for supplying microwave energy and gas; and a plasma applicator connected to a distal end of the flexible cable assembly to receive the microwave energy and gas therefrom, wherein the flexible cable assembly comprises a coaxial cable located within a separate tube, the coaxial cable and tube being connected to a proximal end of the plasma applicator for supplying the microwave energy and gas respectively, wherein the plasma applicator comprises a coaxial antenna connected to receive microwave power from the coaxial cable supplying the microwave energy, the coaxial antenna having an impedance transformer arranged to increase a voltage present at the distal end of the flexible cable assembly to generate an electric field in the applicator for striking a plasma from the gas supplied to the plasma applicator, and wherein the coaxial cable has a hollow centre conductor for carrying the gas to or from the plasma applicator.