Biomaterial Database

A nonoccluding bag and closed scavenging system for the Jackson Rees modified T-piece breathing system. 2000

S S Dhara, and H L Pua

Associate Professor and Senior Consultant Anasthetist; Consultant Anasthetist, National University Hospital, 5 Lower Kent Ridge Road, Singapore 119074.

We used the inner tube and its 22-mm connector from the patient end of a Bain breathing system to splint the double-ended bag of the Jackson Rees modification of the Ayre's T-piece breathing system. A paediatric airway pressure-limiting valve was connected to the distal end of the tube for closed scavenging. The resistance of the modified bags was similar to that of unmodified bags at gas flows below 11 l.min-1. The valve offered no resistance to gas flows below 5 l.min-1. During its use in 30 paediatric patients, analysis of carbon dioxide from inside the bag and from the expiratory port confirmed no loss of deadspace gas by preferential flow bypassing the bag into the scavenging system.

UI	MeSH Term	Description	Entries
D011312	Pressure	A type of stress exerted uniformly in all directions. Its measure is the force exerted per unit area. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)	Pressures
D002245	Carbon Dioxide	A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals.	Carbonic Anhydride,Anhydride, Carbonic,Dioxide, Carbon
D002648	Child	A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL.	Children
D002675	Child, Preschool	A child between the ages of 2 and 5.	Children, Preschool,Preschool Child,Preschool Children
D004334	Drug Administration Schedule	Time schedule for administration of a drug in order to achieve optimum effectiveness and convenience.	Administration Schedule, Drug,Administration Schedules, Drug,Drug Administration Schedules,Schedule, Drug Administration,Schedules, Drug Administration
D004867	Equipment Design	Methods and patterns of fabricating machines and related hardware.	Design, Equipment,Device Design,Medical Device Design,Design, Medical Device,Designs, Medical Device,Device Design, Medical,Device Designs, Medical,Medical Device Designs,Design, Device,Designs, Device,Designs, Equipment,Device Designs,Equipment Designs
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000769	Anesthesia, Inhalation	Anesthesia caused by the breathing of anesthetic gases or vapors or by insufflating anesthetic gases or vapors into the respiratory tract.	Insufflation Anesthesia,Anesthesia, Insufflation,Inhalation Anesthesia
D015920	Gas Scavengers	Apparatus for removing exhaled or leaked anesthetic gases or other volatile agents, thus reducing the exposure of operating room personnel to such agents, as well as preventing the buildup of potentially explosive mixtures in operating rooms or laboratories.	Anesthetic Gas Scavengers,Anesthetic Gas Scavenger,Gas Scavenger,Gas Scavenger, Anesthetic,Gas Scavengers, Anesthetic,Scavenger, Anesthetic Gas,Scavenger, Gas,Scavengers, Anesthetic Gas,Scavengers, Gas
D018685	Anesthetics, Inhalation	Gases or volatile liquids that vary in the rate at which they induce anesthesia; potency; the degree of circulation, respiratory, or neuromuscular depression they produce; and analgesic effects. Inhalation anesthetics have advantages over intravenous agents in that the depth of anesthesia can be changed rapidly by altering the inhaled concentration. Because of their rapid elimination, any postoperative respiratory depression is of relatively short duration. (From AMA Drug Evaluations Annual, 1994, p173)	Inhalation Anesthetic,Inhalation Anesthetics,Anesthetic Gases,Anesthetic, Inhalation,Gases, Anesthetic