Patent ID: 7731704

Claim:
An apparatus for introducing anesthetic agent into the abdomen of a patient comprising: a) an insufflation device to provide pressure and volumetrically controlled gas in a manner suitable for laparoscopic surgery, in a volume to provide full insufflation of the abdomen; b) a heater/hydrator connected to the insufflation device downstream thereof, the heater/hydrator having a heater and an absorbent material contained therein; c) at least a first structure comprising at least a first fluid flow path for the pressure and volumetrically controlled gas extending at least a portion of the distance between the insufflation device and the heater/hydrator; d) at least a second structure comprising at least a second flow path for the pressure and volumetrically controlled gas extending at least a portion of the distance between the heater/hydrator and the abdomen; and e) an agent chamber or a modified agent chamber isolated and external from the heater/hydrator connectable to either the first structure, or the second structure, or both, to supply the anesthetic agent to the pressure and volumetrically controlled gas flowing through either the first flow path, or the second flow path, or both, while it is flowing in the first structure, or the second structure, or both, thereby supplying the anesthetic agent containing gas stream to the interior of the abdomen through either the first flow path, or the second flow path, or both.