Patent ID: 8176914

Claim:
An anesthetic absorbing circle, comprising: a first common tube ( 1 ), providing an anesthetic gas mixture; an inspiration branch ( 2 ), connected at the first end thereof to the first common tube ( 1 ) and delivering the anesthetic gas mixture to a patient end ( 5 ); an expiration branch ( 3 ), connected at the first end thereof to the first common tube ( 1 ) and sending back the expired gas from the patient end ( 5 ) to the first common tube ( 1 ); a second common tube ( 4 ), wherein the first end of the second common tube is connected to the second end of the inspiration branch ( 2 ) and the second end of the expiration branch ( 3 ) respectively, and the second end of the second common tube is connected to the patient end ( 5 ); and a flow sensor( 15 ), wherein the flow sensor ( 15 ) is disposed in the first common tube ( 1 ).