# US 2025/0143749 A1 · Device and method for clearing an obstructed airway

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- Number: US 2025/0143749 A1
- Document ID: US20250143749A1
- Status: Published application
- Kind: A1
- Application number: 18/964,791
- Filed: 2024-12-02
- Published: 2025-05-08
- Earliest claimed: 2018-06-14
- Assignees: Extralife Ltd.
- Applicants: Extralife Ltd.
- Inventors: YARON LEIFENBERG
- Web page: https://patentgrep.com/patent/US20250143749A1

## CPC

- A61B 17/50: Instruments {, other than pincettes or toothpicks,} for removing foreign bodies from the human body (surgical pincettes, i.e. surgical tweezers, A61B17/30)
- A61B 17/24: for use in the oral cavity, larynx, bronchial passages or nose (for medical inspection of cavities or tubes in the body A61B1/00); Tongue scrapers
- A61M 1/81: {Piston pumps, e.g. syringes}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- 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 device for clearing an obstructed airway of a subject including an airway interface adapted for positioning over a mouth and/or nose of the subject, and a pump in fluid communication with the airway interface and being activatable to generate suction at the airway interface, wherein the device is adapted for activation of the pump to generate the suction when the airway interface is pushed against the mouth and/or nose of the subject.

## Claims

### Claim 1

A device for clearing an obstructed airway of a subject comprising:
an airway interface configured to be positioned over a mouth and/or nose of the subject; and
a pump in fluid communication with the airway interface and configured to generate suction at the airway interface when activated, and a sleeve surrounding the pump, wherein the device is configured to activate the pump to generate the suction when the airway interface is pushed against the mouth and/or nose of the subject by pushing on the sleeve, wherein the device is configured to be held and activated with one hand.

### Claim 2 (depends on 1)

The device of claim 1, wherein the sleeve is a grippable sleeve.

### Claim 3 (depends on 1)

The device of claim 1, wherein the airway interface includes a seal for sealing around a mouth and/or nose of a subject.

### Claim 4 (depends on 1)

The device of claim 1, wherein the pump includes a spring and a piston both mounted in a cylinder, wherein the pump is configured such that the spring is compressed when the piston is locked in a closed position and such that unlocking of the piston results in decompression of the spring for the activation of the pump.

### Claim 5 (depends on 4)

The device of claim 4, wherein the sleeve is slidably mounted on the cylinder and configured such that pushing of the sleeve towards the airway interface unlocks the piston.

### Claim 6 (depends on 4)

The device of claim 4, further including a lock pin configured to hold the piston in a locked position, wherein pushing the sleeve towards the airway interface, moves the lock pin to thereby unlock the piston.

### Claim 7 (depends on 4)

The device of claim 4, further including a body, wherein the sleeve surrounds the body, wherein the body is connected to the airway interface, wherein the pump is mounted in the body, wherein the body further includes a slanted grove and the cylinder further includes an L-shaped groove including a locked part for holding a lock pin in a locked position, wherein the device is configured such that movement of the sleeve towards the airway interface moves the slanted groove to thereby drive the lock pin along the slanted groove to thereby move the lock pin into an unlocked part of the L-shaped groove to thereby unlock the piston.

### Claim 8 (depends on 4)

The device of claim 4, wherein a spring constant of the spring is 200-400 N/m.

### Claim 9 (depends on 4)

The device of claim 4, wherein a force applied by the spring is 50-90 N.

### Claim 10 (depends on 1)

The device of claim 1, wherein the pump is capable of generating a suction force greater than 100 mm Hg within a second or less.

### Claim 11 (depends on 1)

The device of claim 1, wherein the pump includes a pneumatic/hydraulic piston.