Ventilator adaptable for use with either a dual-limb circuit or a single-limb circuit
First Claim
1. A ventilator comprising:
- a housing;
a gas flow generator disposed in the housing and adapted to generate a flow of gas;
a gas outlet port disposed on an exterior surface of the housing;
a first conduit coupling the gas flow generator to the gas outlet port;
a gas inlet port disposed on an exterior surface of the housing;
a first exhaust valve disposed in the housing;
a second conduit coupling the gas inlet port to the first exhaust valve, wherein the first exhaust valve controls a flow of exhaust gas from the second conduit;
a second exhaust valve disposed in the housing and operatively coupled to the first conduit, wherein the second exhaust valve controls a first flow of exhaust gas from the first conduit; and
a controller operatively coupled to the second exhaust valve, wherein the controller causes the second exhaust valve to change a degree of flow restriction based on a respiratory phase of a patient coupled to the ventilator responsive to the ventilator being configured to operate in a single-limb ventilation configuration.
3 Assignments
0 Petitions
Accused Products
Abstract
A ventilator of the present invention includes a housing, a gas flow generator disposed in the housing, a gas outlet port provided on an exterior surface of the housing, and a first conduit coupling the gas flow generator to the gas outlet port. A gas inlet port is also provided on an exterior surface of the housing. A second conduit couples the gas inlet port to a first exhaust valve in the housing that regulates a flow of exhaust gas from the second conduit. A second exhaust valve in the housing is coupled to the first conduit and regulates a flow of exhaust gas from the first conduit. A controller coupled to second exhaust valve causes the second exhaust valve to change a degree of flow restriction based on a respiratory phase of a patient coupled to the ventilator when the ventilator is operating in a single-limb ventilation configuration.
96 Citations
13 Claims
-
1. A ventilator comprising:
-
a housing; a gas flow generator disposed in the housing and adapted to generate a flow of gas; a gas outlet port disposed on an exterior surface of the housing; a first conduit coupling the gas flow generator to the gas outlet port; a gas inlet port disposed on an exterior surface of the housing; a first exhaust valve disposed in the housing;
a second conduit coupling the gas inlet port to the first exhaust valve, wherein the first exhaust valve controls a flow of exhaust gas from the second conduit;a second exhaust valve disposed in the housing and operatively coupled to the first conduit, wherein the second exhaust valve controls a first flow of exhaust gas from the first conduit; and a controller operatively coupled to the second exhaust valve, wherein the controller causes the second exhaust valve to change a degree of flow restriction based on a respiratory phase of a patient coupled to the ventilator responsive to the ventilator being configured to operate in a single-limb ventilation configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A ventilator comprising:
-
a housing;
a gas flow generator disposed in the housing and adapted to generate a flow of gas;an exhaust valve disposed in the housing; a gas outlet port disposed on an exterior surface of the housing; a gas inlet port disposed on an exterior surface of the housing; a first conduit structured to couple the gas flow generator to the gas outlet port and to the exhaust valve; a second conduit structured to couple the gas inlet port to the exhaust valve, wherein the exhaust valve is structured to control at least one of a flow of exhaust gas from the first conduit and a flow of gas from the second conduit; and a controller operatively coupled to the exhaust valve, wherein the controller causes the exhaust valve to change a degree of flow restriction responsive to a respiratory phase of a patient coupled to the ventilator and responsive to the ventilator being configured to operate in a single-limb ventilation configuration or a dual-limb ventilation configuration. - View Dependent Claims (9, 10, 11, 12)
-
-
13. A method for providing ventilation to a patient, comprising:
-
(a) coupling such a patient to a ventilator with one of a single-limb circuit or a dual-limb circuit; and (b) creating a flow of gas with the ventilator, the ventilator comprising; (1) a housing, (2) a gas flow generator disposed in the housing and structured to generate the flow of gas, (3) an exhaust valve, (4) a gas outlet exhaust port disposed on an exterior surface of the housing and operatively coupled to the gas flow generator and to the exhaust valve, (5) a gas inlet port disposed on the exterior surface of the housing and operatively coupled to the exhaust valve; and (6) a controller operatively coupled to the exhaust valve, the controller adapted to cause the exhaust valve to change a degree of flow restriction responsive to a respiratory phase of such patient and responsive to such patient being coupled to the ventilator with the single-limb circuit or the dual-limb circuit.
-
Specification