Patent ID: 8667963
Filing Date: 2014-03-11
Classification: A61M

Abstract:
1. A ventilator circuit for use with a ventilator to provide a mixture of air and oxygen to a patient that receives oxygen from a low pressure low flow supply, the ventilator circuit comprising: a fill enable valve for selectively enabling the flow of gas including a replenishing supply of oxygen from the ventilator; an inspiratory line extending from the fill enable valve towards the patient; an exhalation valve in communication with an end of the inspiratory line remote from the fill enable valve, the exhalation valve being operable for selectively opening and accommodating a flow of gas from the inspiratory line to the patient and selectively closing and blocking a flow of gas from the inspiratory line to the patient and allowing an outflow of exhaled gas from the patient downstream of the exhalation valve; and an oxygen fill line extending from a low pressure low flow supply of oxygen and into communication with the inspiratory line at a location near the exhalation valve, whereby oxygen from the oxygen fill line can fill the inspiratory line during an exhalation cycle performed by the ventilator with the exhalation valve closed.