Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1977-10-07
1980-02-19
Recla, Henry J.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
A61M 1600
Patent
active
041889460
ABSTRACT:
A method and apparatus for administering anesthesia to a patient is shown. A control module may be connected through an inhalation breathing circuit to a patient with a portion of the mixed/expired gases being rebreathed by the patient thus improving humidification and heat retention. By use of a CO.sub.2 analyzer in the control module, the CO.sub.2 content of the expired gas is accurately measured with any necessary adjustments being made in the gases delivered to the patient. The control module includes an O.sub.2 analyzer, adjustable pressure warning and control device, pressure gauge, manually controlled scavenger valve, and bacterial filter connected thereto. An anesthesia ventilator or breathing bag may be used in conjunction with the control module for administering anesthesia or transportation of the patient. The inhalation breathing circuit has two concentric, non-kinking, corrugated tubes, one visually apparent within the other for delivering both fresh gas with a mixed portion of the expired gas to the patient through a special elbow adapter that allows suctioning without interrupting the fresh gas flow or ventilation of the patient.
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Rayburn Robert L.
Watson Robert L.
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