Oxygen supply control device of anaesthesia machine

• Main Author: YAN QUANGUO
• Format: Patent
• Language: Chinese; English
• Published: 03.10.2017
• Subjects: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

The invention discloses an oxygen supply control device of an anaesthesia machine. The oxygen supply control device comprises a three-way tube and a valve body, wherein the three-way tube comprises an oxygen inlet, an anesthetic gas inlet and an anesthetic mixed gas outlet; an anesthetic gas spraying tube is arranged on the valve body; at least one through hole, which communicates with an inner cavity of the spraying tube, is formed in the tube wall of the anesthetic gas spraying tube; one end of the anesthetic gas spraying tube is fixedly connected to the valve body and communicates with an inner cavity of the valve body, and the other end of the anesthetic gas spraying tube is provided with a pressure buffer plate which is axially perpendicular to the anesthetic gas spraying tube; the area of the pressure buffer plate is greater than the cross-section area of the anesthetic gas spraying tube; the valve body is connected to the three-way tube by virtue of a connecting tube; the anesthetic gas spraying tube o