Apparatus and method to provide breathing support
AssigneeEupnea Technologies, Inc.
InventorsRajendra Gurudas Sardesai, Rangasamy Ramanathan
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Abstract
A ventilator, or a breathing assistance apparatus, is disclosed to ventilate patients who may have breathing difficulties, said device comprising a inspiratory pressure control duct configured to be immersed in a first body of fluid; a positive end-expiratory pressure control duct configured to be immersed in a second body of fluid; at least one valve connected to the peak inspiratory pressure control duct and to the positive end-expiratory pressure control duct, and at least one controller communicably connected to the valve to control rate of cycling of the valve, thereby controlling number of breaths per minute, and to control the duration of peak inspiratory pressure also known as inspiratory time.
Claims21
An apparatus to provide breathing support to a patient comprising:
- a valve comprising at least three ports, said three ports comprising an inlet port, a first outlet port and a second outlet port, the inlet port adapted for connection to a patient interface via a primary duct configured for a flow of a gas;
- at least one peak inspiratory pressure (PIP) control duct connected to the first outlet port of the valve;
- at least one positive end-expiratory pressure (PEEP) control duct connected to the second outlet port of the valve;
- a container containing a first body of fluid, wherein the PIP control duct and the PEEP control duct are configured to be immersed in the first body of fluid in the container, and an immersed length of the PIP control duct is greater than an immersed length of the PEEP control duct;
- at least one safety duct adapted for connection to the primary duct and configured to be immersed in the first body of fluid, wherein an immersed length of the safety duct is greater than the immersed length of the PIP control duct;
- wherein the valve is configured to cycle between the first outlet port and the second outlet port thereby switching the flow of the gas from the inlet port to only the first outlet port and from the inlet port to only the second outlet port;
- wherein a cycle corresponds to one breath;
- and
- wherein when the gas flows from the inlet port to the first outlet port of the valve, the gas flows through the PIP control duct, thereby controlling a PIP in the apparatus so that the patient receives the PIP, and when the gas flows from the inlet port to the second outlet port of the valve, the gas in the apparatus flows through the PEEP control duct, thereby lowering pressure in the apparatus to a PEEP so that the patient receives the PEEP.
An apparatus to provide breathing support to a patient comprising:
- a pressurized gas supply;
- at least one body of fluid;
- a primary duct including proximal and distal ends, the proximal end adapted for connection to the pressurized gas supply, the primary duct also adapted for connection to a patient interface between the proximal and distal ends;
- a valve comprising at least three ports, said three ports comprising one inlet port, a first outlet port and a second outlet port, the inlet port adapted for connection to the distal end of the primary duct;
- wherein the apparatus further comprises:
- (i) at least one peak inspiratory pressure (PIP) control duct connected to the first outlet port of the valve and configured to be immersed in the at least one body of fluid;
- (ii) at least one positive end-expiratory pressure (PEEP) control duct connected to the second outlet port of the valve and configured to be immersed in the at least one body of fluid;
- and
- (iii) wherein an immersed length of the PIP control duct is greater than an immersed length of the PEEP control duct;
- (iv) at least one safety duct adapted for connection to the primary duct and configured to be immersed in the at least one body of fluid, wherein an immersed length of the safety duct is greater than the immersed length of the PIP control duct;
- wherein the valve is configured to cycle between the first outlet port and the second outlet port thereby switching a flow of a gas from the inlet port to only the first outlet port and from the inlet port to only the second outlet port;
- wherein a cycle corresponds to one breath;
- and
- wherein when the gas flows from the inlet port to the first outlet port of the valve, the gas flows through the PIP control duct, thereby controlling a PIP in the system so that a patient receives the PIP, and when the gas flows from the inlet port to the second outlet port of the valve, the gas flows through the PEEP control duct, thereby lowering pressure in the system to a PEEP so that the patient receives the PEEP.
Dependencies are inferred from the claim text.