# US 2019/0167936 A1 · Nasal Cannula Clamping and Patient Monitoring System

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- Number: US 2019/0167936 A1
- Document ID: US20190167936A1
- Status: Published application
- Kind: A1
- Application number: 16/184,901
- Filed: 2018-11-08
- Published: 2019-06-06
- Earliest claimed: 2017-12-04
- Inventors: Roger Cameron Love
- Web page: https://patentgrep.com/patent/US20190167936A1

## CPC

- A61M 16/0666: {Nasal cannulas or tubing (devices for improving normal breathing through the nose A61F5/08; nose filters A62B23/06; outside holding devices A61M25/02)}
- A61M 5/1418: {Clips, separators or the like for supporting tubes or leads}
- A61M 5/16831: {Monitoring, detecting, signalling or eliminating infusion flow anomalies (low-level float-valves causing cut-off A61M5/40; indicating or recording presence, absence or direction of flow in general G01P13/0066)}
- A61M 16/0051: {with alarm devices}
- A61M 16/024: {including calculation means, e.g. using a processor}
- A61M 16/0672: {Nasal cannula assemblies for oxygen therapy}
- A61M 16/0833: {T- or Y-type connectors, e.g. Y-piece}
- A61M 16/0875: {Connecting tubes}
- A61M 39/28: Clamping means for squeezing flexible tubes, e.g. roller clamps {(tube strippers A61M1/83)}
- A61M 16/0816: {Joints or connectors}
- A61M 2016/0036: {in the breathing tube and used in both inspiratory and expiratory phase}
- A61M 2016/0039: {in the inspiratory circuit}
- A61M 2025/0226: {specifically adapted for the nose}
- A61M 2025/024: {having a clip or clamp system}
- A61M 2205/18: with alarm
- A61M 2205/3334: Measuring or controlling the flow rate
- A61M 2205/3553: remote, e.g. between patient's home and doctor's office
- A61M 2205/3569: sublocal, e.g. between console and disposable
- A61M 2205/3584: using modem, internet or Bluetooth®
- A61M 2205/3592: using telemetric means, e.g. radio or optical transmission
- A61M 2205/581: by audible feedback
- A61M 2205/582: by tactile feedback
- A61M 2205/583: by visual feedback
- A61M 2205/8206: battery-operated
- A61M 2209/088: on the body
- A61M 2230/06: Heartbeat rate only
- A61M 2230/205: partial oxygen pressure (P-O2)
- 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

A nasal cannula clamping system which holds a nasal cannula in position on a patient. The nasal cannula clamping system includes a nasal cannula clamp assembly having a clamp body and a clamp block grasping nasal cannula tubes in two non-round parallel passages/grooves which securely clamps the two tubes under the chin while not compromising the distribution of medication prescribed by the attending physician. The nasal cannula tubes are sandwiched between the clamp body and clamp block which also contains the non-round parallel passages/grooves.

## Claims

### Claim 1

A nasal Cannula clamping system, comprising:
a cannula clamp assembly including:
a clamp body having two non-round cannula tubes passages extending the length of the clamp body;
a clamp block attached to the clamp body and residing over a portion of both cannula tubing recesses; and
a clamp block fastener drawing the clamp block towards the clamp body;
an independent flow sensor detecting a presence of a flow in cannula tubing;
a circuit board to process data from the independent flow sensor;
batteries electrically connected to the circuit carrying a power signal to the circuit board;
a switch controlling the circuit board; and
an indicator providing an indication of flow presence detected by the independent flow sensor, in the cannula tubing.

### Claim 2 (depends on 1)

The nasal cannula clamping system of claim 1, wherein the cannula tubing recesses are generally parallel.

### Claim 3 (depends on 1)

The nasal cannula clamping system of claim 1, wherein clamp block fastener is a threaded fastener.

### Claim 4 (depends on 1)

The nasal cannula clamping system of claim 1, wherein the cannula tubing passages have a parabolic cross-section.

### Claim 5 (depends on 1)

The nasal cannula clamping system of claim 1, wherein the cannula tubing passages have an elliptical cross-section.

### Claim 6 (depends on 1)

The nasal cannula clamping system of claim 1, wherein the cannula tubing passages have an oval cross-section.

### Claim 7 (depends on 1)

The nasal cannula clamping system of claim 1, wherein the cannula tubing passages have a width slightly greater than a diameter of the cannula tubing, and a depth less than a radius of the cannula tubing.

### Claim 8 (depends on 7)

The nasal cannula clamping system of claim 7, wherein the cannula tubing passages are preferably between 0.005 and 0.002 inches wider than the cannula tubing diameter and between 0.0015 and 0.0045 shallower than the radius of the cannula tubing.

### Claim 9 (depends on 7)

The nasal cannula clamping system of claim 7, wherein the cannula tubing passages are 0.129+0.001 or −0.002 inches wide and 0.059+0.0020 or −0.0010 inches deep

### Claim 10 (depends on 1)

The nasal cannula clamping system of claim 1, wherein the independent flow sensor resides in a sensor assembly spaced apart from the cannula clamp assembly.

### Claim 11 (depends on 10)

The nasal cannula clamping system of claim 10, further including a standard cannula Y connector between the independent flow sensor assembly and the clamp body, wherein:
the independent flow senor assembly receives a first flow from a main source; and
the standard cannula Y connector separates the first flow in the first cannula tube into two parallel second flows in two second cannula tubes held between the clamp body and the clamp block.

### Claim 12 (depends on 10)

The nasal cannula clamping system of claim 10, wherein the circuit board, the batteries, the switch, and the indicator are attached to the cannula clamp assembly.

### Claim 13 (depends on 1)

The nasal cannula clamping system of claim 1, wherein the indicator is a light, a vibrator, an audio device, or a wireless signal.

### Claim 14 (depends on 13)

The nasal cannula clamping system of claim 13, wherein the wireless signal is transmitted via WiFi or wireless protocol.

### Claim 15 (depends on 13)

The nasal cannula clamping system of claim 13, wherein the indicator is a light.

### Claim 16 (depends on 1)

The nasal cannula clamping system of claim 1, wherein the color of the clamp body provides patient information to medical staff.

### Claim 17

A method for retaining a nasal cannula, the method comprising:
positioning two second cannula tubes of the nasal cannula on a patient, the two second cannula tubes connected to a standard cannula Y ;
connecting a first cannula tube between a main source and the standard cannula Y;
resting two portions of the second cannula tubes in first non-round cannula tubing recesses of a clamp body of a nasal cannula clamping system;
positioning a clamp block having two second non-round cannula tubing recesses over the two portions of cannula tubing;
tightening the clamp block grasping the two portions of cannula tubing between the first non-round cannula tubing recesses and the two second non-round cannula tubing recesses; and
starting a flow of a physician recommended/controlled medication from a main source into the nasal cannula;
wherein the first and second non-round cannula tubing recesses have a width slightly greater than a diameter of the second cannula tubes, and a depth less than a radius of the second cannula tubes.

### Claim 18 (depends on 17)

The method of claim 17, further including:
an independent flow sensor assembly serially connected between the main source and the standard cannula Y, the independent flow sensor assembly detecting a presence of a flow in the first cannula tubing;
a first circuit in the flow sensor assembly processing flow data from the independent flow sensor;
wirelessly transmitting the flow data to a second circuit in the clamp body; and
wirelessly transmitting the flow data from the second circuit in the clamp body to a patient monitoring device.

### Claim 19 (depends on 17)

The nasal cannula clamping system of claim 17, wherein the cannula tubing passages are preferably between 0.005 and 0.002 inches wider than the diameter of the cannula tubing and between 0.0015 and 0.0045 shallower than the radius of the cannula tubing.