# US 9,750,910 B2 · Systems for automatically removing fluid from multiple regions of a respiratory tract

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- Number: US 9,750,910 B2
- Document ID: US9750910B2
- Status: Granted
- Kind: B2
- Application number: 14/826,114
- Filed: 2015-08-13
- Published: 2016-02-18
- Granted: 2017-09-05
- Earliest claimed: 2014-08-14
- Assignees: Coeo Labs Private Limited
- Applicants: Coeo Labs Private Limited
- Inventors: Jagdish Chaturvedi; Nitesh Kumar Jangir; Nachiket Deval; Ramakrishna Pappu; Raghuveer Rao; Mohammed Sajid Ali; Vimal Kishore Kakani
- Web page: https://patentgrep.com/patent/US9750910B2

## CPC

- A61M 16/0463: {combined with suction tubes, catheters or the like; Outside connections}
- A61M 16/0445: {Special cuff forms, e.g. undulated}
- A61M 16/0465: {Tracheostomy tubes; Devices for performing a tracheostomy; Accessories therefor, e.g. masks, filters}
- A61M 16/0479: {above the cuff, e.g. giving access to the upper trachea}
- A61M 16/0484: {at the distal end}
- A61M 16/0486: {Multi-lumen tracheal tubes}
- A61M 16/0858: {Pressure sampling ports}
- A61M 1/77: {Suction-irrigation systems (aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463)}
- A61M 16/0057: {Pumps therefor}
- A61M 16/0497: {Tube stabilizer}
- A61M 2205/3334: Measuring or controlling the flow rate
- A61M 2205/3344: Measuring or controlling pressure at the body treatment site
- A61M 2205/3584: using modem, internet or Bluetooth®
- A61M 2205/3592: using telemetric means, e.g. radio or optical transmission
- A61M 2205/505: Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
- A61M 2205/75: with filters
- 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)}

## Abstract

Systems and devices for monitoring, detecting, and removing fluid build-up found at various regions along a tracheal tube of an intubated patient. The fluid management system includes pressure and flow sensors for detecting whether there is fluid at the various regions along the tracheal tube, and a means for drawing out the fluid into collection jars. The system also includes lavage features that is able to rinse different the various regions along a tracheal tube. Also disclosed are respiration insertion devices that either couple to existing tracheal tubes or incorporate tracheal tubing, where the respiration insertion body has channels and ports that contact various regions along the tracheal tube. The combination of the fluid management system and the respiration insertion devices effectively monitor and remove fluid at various locations along a tracheal tube of an intubated patient.

## Claims

### Claim 1

A system for automatically removing fluid from multiple regions of a respiratory tract and lavaging an oral cavity portion of the respiratory tract, the system comprising:
a controller comprising controller circuitry and one or more valves configured to couple to a source of air pressure;
a plurality of fluid lines, wherein the fluid lines couple with the one or more valves of the controller, and wherein the controller circuitry is configured to control the one or more valves to apply positive or negative pressure through each fluid line of the plurality of fluid lines;
a plurality of flow sensors and pressure sensors, wherein the fluid lines are each coupled to a flow sensor and a pressure sensor that are configured to report fluid flow and pressure within the fluid line to the controller;
a source of lavage liquid, wherein the controller is configured to apply positive pressure to deliver lavage liquid; and
a plurality of collection containers each coupled to a fluid line of the plurality of fluid lines and configured to collect fluid from the fluid lines, wherein the plurality of collection containers are connected between a pressure control of the controller and the plurality of flow sensors;
wherein the controller circuitry is configured to periodically, automatically, and independently apply negative pressure to each of the fluid lines, to continue applying negative pressure until there is no more flow and to stop applying negative pressure in each fluid line of the plurality of fluid lines when the fluid flow in that fluid line indicates an absence of secretions, and to detect a blockage in the fluid line based on fluid flow and pressure in that fluid line;
further wherein the controller circuitry is configured to clear a block in that fluid line.

### Claim 2 (depends on 1)

The system of claim 1, further comprising an input configured to receive user-selected control information comprising one or more of: lavage delivery frequency, lavage duration, lavage pressure, suction application frequency, and suction pressure.

### Claim 3 (depends on 1)

The system of claim 1, wherein the controller further comprises a display, and wherein the controller circuitry is configured to display for one or more of the first, second and third fluid lines data comprising one or more of: flow rate of a secretion within the fluid line, thickness of secretion within the fluid line, volume of secretion within the fluid line, or color of the secretion within the fluid line.

### Claim 4 (depends on 1)

The system of claim 1, wherein the controller is configured to apply positive pressure to deliver the lavage fluid through one of the fluid lines and to apply negative pressure to one or more other of the fluid lines to remove the lavage fluid.

### Claim 5 (depends on 1)

The system of claim 1, wherein the plurality of fluid lines comprises a first, second and third fluid lines and wherein the controller circuitry is configured to independently apply negative pressure through each of the first, second and third fluid lines.

### Claim 6 (depends on 1)

The system of claim 1, wherein the plurality of fluid lines comprises a first, second, third and fourth fluid lines and wherein the controller circuitry is configured to independently apply negative pressure through each of the first, second, third and fourth fluid lines.

### Claim 7 (depends on 1)

The system of claim 1, wherein the plurality of fluid lines comprises one or more lavage delivery fluid lines that are connected to the source of lavage liquid and wherein the controller is configured to apply positive pressure to the one or more lavage delivery fluid lines to deliver lavage fluid.

### Claim 8 (depends on 1)

The system of claim 1, further comprising a pump configured to apply positive pressure, wherein the pump is in communication with the controller and the source of lavage fluid.

### Claim 9 (depends on 1)

The system of claim 1, wherein the source of lavage liquid comprises a receptacle configured to hold a lavage liquid.

### Claim 10 (depends on 1)

The system of claim 1, wherein the one or more valves comprises a plurality of suction valves, wherein each of the fluid lines of the plurality of fluid lines is in communication with a suction valve of the plurality of suction valves.

### Claim 11 (depends on 1)

The system of claim 1, wherein the plurality of flow sensors are outside of the plurality of fluid lines.

### Claim 12 (depends on 1)

The system of claim 1, wherein the controller circuitry is configured to apply positive pressure to deliver lavage fluid through one or more of the plurality of fluid lines.

### Claim 13 (depends on 1)

The system of claim 1, wherein the controller circuitry is configured to periodically apply positive pressure to deliver lavage fluid through one or more of the plurality of fluid lines at a lavage delivery frequency.

### Claim 14 (depends on 1)

The system of claim 1, wherein the collection containers are connected to the fluid lines between the one or more valves and the source of air pressure.