Hardware configuration for pressure driver
First Claim
1. A pressure driver for a ventilation system for ventilating a patient, the pressure driver comprising:
- a gas source;
a patient pressure sensor operative to measure pressure at the patient; and
an inspiration flow control valve interposed between the gas source and the patient and being operative to open and close in response to patient pressure measurements.
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Accused Products
Abstract
A pressure driver for a ventilation system comprises a gas source, an inspiration flow control valve and a patient pressure sensor to form a closed loop control system. The inspiration flow control valve may be mounted within a housing and is operative to open and close in response to patient pressure measurements in order to produce a desired pressure at the patient. The pressure driver may further include a mixture control for allowing selective adjustment of the oxygen concentration in pressurized gas delivered to the patient. An oxygen mixer is connected between the gas source and the mixture control and is operative to deliver the desired mixture of oxygen and air to the inspiration flow control valve for delivery to the patient. An oxygen sensor monitors the oxygen concentration in the gas provided by the oxygen mixer.
100 Citations
25 Claims
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1. A pressure driver for a ventilation system for ventilating a patient, the pressure driver comprising:
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a gas source;
a patient pressure sensor operative to measure pressure at the patient; and
an inspiration flow control valve interposed between the gas source and the patient and being operative to open and close in response to patient pressure measurements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A pressure driver for a continuous positive airway pressure (CPAP) ventilation system for ventilating a patient, the pressure driver comprising:
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a gas source;
a pressure regulator fluidly connected to the gas source and being operative to regulate the pressure of gas from the gas source;
a closed loop control system comprising;
an inspiration flow control valve fluidly connected between the pressure regulator and the patient;
a patient pressure sensor operative to measure pressure at the patient for feedback to the inspiration flow control valve;
wherein the inspiration flow control valve is operative to open and close in response to patient pressure measurements. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A pressure driver for a ventilation system for ventilating a patient, the pressure driver comprising:
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a housing;
a gas source comprising an oxygen port and an air port mounted on the housing;
a patient pressure sensor disposed on the housing and being operative to measure pressure at the patient;
a pressure regulator disposed on the housing and fluidly connected to the gas source and being operative to regulate the pressure of gas flowing therefrom;
an inspiration flow control valve disposed on the housing and interposed between the gas source and the patient, the inspiration flow control valve being operative to open and close in response to patient pressure measurements for producing a desired pressure at the patient;
a mixture control being configured to allow for selective adjustment of the oxygen concentration delivered to the patient;
an oxygen mixer connected to the gas source and being operative to deliver a mixture of oxygen and air to the inspiration flow control valve in response to a setting of the mixture control; and
an oxygen sensor operative to measure the oxygen concentration in the gas provided to the patient. - View Dependent Claims (22, 23, 24, 25)
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Specification