| abstract |
Disclosed is an anesthesia gas delivery device and methods of use therefor. The device comprises an aluminum cover plate, a gas inlet for a carrier gas, a gas outlet for a diluent anesthetic gas, a gas corridor in fluid communication with and extending between the gas inlet and the gas outlet, at least four ultrasound acoustic sensors, at least 2 thermistors, a reservoir comprising a reservoir housing for a liquid inhalational anesthetic, a controller, a graphical user interface, and means for transferring a sample of a liquid inhalational anesthetic from the reservoir to the gas corridor. Methods of providing anesthesia to a subject using the device are also disclosed. These methods comprise using ultrasound and temperature data to determine anesthetic gas velocity, composition and concentration. |