Patent ID: 9724481
Date: 2017-08-08
CPC Classifications: A61B,A61M

Claim:
1. A gas delivery system for supplying a body cavity with a given gas, the gas delivery system comprising: a first flow sensor; a second flow sensor different from the first flow sensor; a first guide pipe to be inserted into the body cavity; a second guide pipe installed inside the first guide pipe; a first conduit supplying the body cavity with a first gas at a first flow velocity measured by the first flow sensor, the first conduit being disposed between the first guide pipe and a portion of the second guide pipe installed inside the first guide pipe; and a second conduit supplying the body cavity with a second gas at a second flow velocity measured by the second flow sensor, the second conduit being disposed inside the portion of the second guide pipe installed inside the first guide pipe; a gas supply unit that includes a first gas supply unit and a second gas supply unit, the first gas supply unit supplying the first gas to the first conduit, the second gas supply unit supplying the second gas to the second conduit; and a controller programmed to: