Patent ID: 8187265

Claim:
A coagulation apparatus using cold plasma, comprising: a microwave oscillation unit having a signal source which generates a microwave signal for supplying a resonance energy used to generate the plasma; an amplification unit which is provided between the microwave oscillation unit and a resonator to amplify the microwave signal into an amplified microwave signal with a predetermined amplitude; the resonator which is driven by the resonance energy of the amplified microwave signal to generate the plasma by discharging an inert gas supplied by a gas supply unit; and a coagulation unit which is constructed with a hollow-tube venting unit which is connected to an end of the resonator to vent the plasma generated by the resonator, so that the cold plasma discharged and generated by the microwave signal can be concentrated on a bleeding portion to coagulate blood, wherein the resonator comprises: a coaxial cable which is constructed with a first inner conductor and a dielectric material which surrounds the first inner conductor; an outer conductor which surrounds the coaxial cable; a connection conductor which has at least one gas injection tube and which is provided at one end of the coaxial cable to electrically connect the first inner conductor and the outer conductor; and a connection member which has a second inner conductor which penetrates the outer conductor to be electrically connected to the first inner conductor.