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An apparatus for resuscitating, administering anesthesia to, or administering respiratory care to a patient is shown which allows greater rebreathing of mixed expired gases thus improving humidification and heat retention in the inspired gases. The inhalation breathing circuit may include two concen

An apparatus for resuscitating, administering anesthesia to, or administering respiratory care to a patient is shown which allows greater rebreathing of mixed expired gases thus improving humidification and heat retention in the inspired gases. The inhalation breathing circuit may include two concentric, non-kinking, corrugated tubes, one visually apparent within the other, for handling both fresh gases and mixed expired gases of the patient or the inhalation breathing circuit may consist of a spiralled inflow tube contained within the wall of the larger exhalation corregated tube. An adjustable exhaust pressure valve maintains a predetermined pressure range for the gas being delivered to-and-fro between a breathing bag and the patient. Expired gases vent through an anesthesia bacterial filter or may be scavenged to prevent environmental pollution. Suctioning of the patient may be performed without interrupting the fresh gas flow or ventilation to the patient.

대표청구항 ▼

An inhalation breathing circuit for supplying fresh gases to a patient from source of fresh gases comprising: a fresh gas tube having a fresh gas passage therethrough, said fresh gas tube having a first end including means adapted to be connected to a source of fresh gases and an opposite second end

An inhalation breathing circuit for supplying fresh gases to a patient from source of fresh gases comprising: a fresh gas tube having a fresh gas passage therethrough, said fresh gas tube having a first end including means adapted to be connected to a source of fresh gases and an opposite second end; an exhalation tube having an exhalation passage therethrough, said exhalation tube having a first end and an opposite second end, said fresh gas tube extended through said exhalation passage with both said second end of said exhalation tube and said second end of said fresh gas tube terminating immediately adjacent said patient; a short mixing connector for connecting said second end of said exhalation tube to said patient; tip means connecting to said second end of said fresh gas tube adjacent said patient, said tip means being located inside said short mixing connector, said tip means having radial passages for discharging said fresh gases radially inside said short mixing connector; circuit connector means with a main exhaust passage therethrough having a first end connected to said first end of said exhalation tube and an opposite second end, a fresh gas tube opening in said circuit connector means for receiving said fresh gas tube therethrough and into said main exhaust passage; and exhaust control means having a cylindrical body with a longitudinal passage therethrough having one end connected to the second end of said main exhaust passage of said circuit connector means and an opposite second end, said opposite second end of said cylindrical body having means adapted to be connected to a reservoir bag, said cylindrical body having a discharge opening through a side of said cylindrical body extending laterally to said longitudinal passage, a sleeve with a lateral opening being rotatably mounted on said cylindrical body, said lateral opening being rotatably alignable with said discharge opening and being adapted for connection to an anesthetic scavenging system; said sleeve being rotatable on said cylindrical body to vary amount of overlap between said discharge opening of said cylindrical body and the lateral opening of said sleeve which controls amount of gases discharged during use.