# US 11,077,269 B2 · Breathing gas delivery system

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- Number: US 11,077,269 B2
- Document ID: US11077269B2
- Status: Granted
- Kind: B2
- Application number: 17/073,929
- Filed: 2020-10-19
- Published: 2021-02-18
- Granted: 2021-08-03
- Earliest claimed: 2018-03-02
- Assignees: Msafe, Inc.
- Applicants: MSafe, Inc.
- Inventors: Robert McBride
- Web page: https://patentgrep.com/patent/US11077269B2

## CPC

- A61M 16/022: {Control means therefor}
- A62B 7/12: with fresh-air hose
- A61M 16/0003: {Accessories therefor, e.g. sensors, vibrators, negative pressure}
- A61M 16/0816: {Joints or connectors}
- A61M 16/0875: {Connecting tubes}
- A61M 16/106: {in a path}
- A61M 16/0605: {Means for improving the adaptation of the mask to the patient}
- A61M 16/0672: {Nasal cannula assemblies for oxygen therapy}
- A61M 16/0683: {Holding devices therefor}
- A61M 16/0833: {T- or Y-type connectors, e.g. Y-piece}
- A61M 16/1045: {Devices for humidifying or heating the inspired gas by using recovered moisture or heat from the expired gas}
- A61M 16/208: {Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves}
- A61M 2016/003: {with a flowmeter}
- A61M 2202/0275: Nitric oxide [NO]
- A61M 2205/3334: Measuring or controlling the flow rate
- A62B 7/00: Respiratory apparatus (for medical purposes A61M16/00)
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}
- A62B: DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING (valves specially adapted for medical use A61M39/00; life-saving devices, apparatus or methods specially adapted for use in water B63C9/00; divers' equipment B63C11/00; specially adopted for use with aircraft, e.g. parachutes, ejector seats, {B64D17/00, B64D25/10}; rescue devices peculiar to mining E21F11/00)

## Abstract

A breathing gas delivery system comprising a gas flow controller and at least one breathing apparatus. The gas flow controller has a body having an on/off switch, at least one gas input, and at least one gas output. The breathing apparatus comprises a T-shaped gas input having a body with two arms and a free end, a breathing bag coupled to the free end of the T-shaped gas input, a length of tubing having two opposed ends, wherein one end is coupled to the other arm of the T-shaped gas input, a filter coupled the length of tubing, and a nasal assembly coupled to the filter.

## Claims

### Claim 1

A breathing gas delivery system comprising:
a) a gas flow controller comprising a body having:
i) an on/off switch;
ii) at least one gas input; and
iii) at least one gas output;
b) at least one breathing apparatus comprising:
i) a T-shaped gas input having a body with two arms and a free end;
ii) a breathing bag coupled to the free end of the body of the T-shaped gas input;
iii) a nasal assembly tube having two opposed ends, wherein one end is coupled to a first of the two arms of the T-shaped gas input;
iv) a filter coupled to the other end of the nasal assembly tube; and
v) a nasal assembly coupled to the filter and configured in use to not block a user's mouth;
wherein the at least one gas output is in fluid communication with a second of the two arms of the T-shaped gas input.

### Claim 2 (depends on 1)

The system of claim 1, wherein the nasal assembly comprises a nasal hood.

### Claim 3 (depends on 2)

The system of claim 2 wherein the nasal hood comprises a one-way vent disposed in a side wall of the nasal hood.

### Claim 4 (depends on 1)

The system of claim 1, wherein the nasal assembly comprises a nasal hood and an airtight elbow coupling for coupling the nasal hood to the filter.

### Claim 5 (depends on 4)

The system of claim 4, wherein the elbow coupling comprises a sphere with two cylinders extending from the sphere.

### Claim 6 (depends on 1)

The system of claim 1, further comprising at least one first length of tubing individually coupling each respective breathing apparatus to the gas flow controller.

### Claim 7 (depends on 1)

The system of claim 1, wherein there are three gas outputs, and three breathing apparatuses.

### Claim 8 (depends on 1)

A method of using the system of claim 1, the method comprising the steps of:
a) coupling the at least one gas input to a gas source;
b) securing a respective one of the breathing apparatuses to a face of each user; and
c) turning on gas flow to the breathing apparatus(es).

### Claim 9

A kit for assembling a breathing gas delivery system, the kit comprising:
a) a gas flow controller comprising a body having:
i) an on/off switch;
ii) at least one gas input; and
iii) at least one gas output;
b) at least one breathing apparatus comprising:
i) a T-shaped gas input having a body with two arms and a free end;
ii) a breathing bag configured to couple to the free end of the body of the T-shaped gas input;
iii) a nasal assembly tube having two opposed ends, wherein one end is configured to couple to a first of the two arms of the T-shaped gas input;
iv) a filter configured to couple to the other end of the first lengthof tubing nasal assembly tube; and
v) a nasal assembly configured to couple to the filter and configured in use to not block a user's mouth; and
c) at least one length of tubing configured to individually couple each respective breathing apparatus to the gas flow controller.

### Claim 10 (depends on 9)

The kit of claim 9, further comprising a dial coupled to a needle valve that extends into a body passageway and controls a flow of gas to the corresponding gas output.

### Claim 11 (depends on 9)

The kit of claim 9, wherein the nasal assembly comprises a nasal hood.

### Claim 12 (depends on 11)

The kit of claim 11, wherein the nasal hood comprises a one-way vent disposed in a side wall of the nasal hood.

### Claim 13 (depends on 9)

The kit of claim 9, wherein the nasal assembly comprises a nasal hood and an airtight elbow coupling for coupling the nasal hood to the filter.

### Claim 14 (depends on 13)

The kit of claim 13, wherein the elbow coupling comprises a sphere with two cylinders extending from the sphere.

### Claim 15 (depends on 9)

The kit of claim 9, wherein there are three gas outputs, three lengths of tubing, and three breathing apparatuses.

### Claim 16 (depends on 9)

The kit of claim 9, further comprising a T-valve configured to couple to the gas input.

### Claim 17 (depends on 9)

A method of using the kit of claim 9, the method comprising the steps of:
a) coupling the at least one gas input to a gas source;
b) securing a respective one of the breathing apparatuses to a face of a user; and
c) turning on gas flow to the breathing apparatus.