# US 9,038,627 B2 · Artificial oral airway, esophageal blocker, and pharyngeal airway assembly

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- Number: US 9,038,627 B2
- Document ID: US9038627B2
- Status: Granted
- Kind: B2
- Application number: 13/366,423
- Filed: 2012-02-06
- Published: 2013-04-25
- Granted: 2015-05-26
- Earliest claimed: 2011-10-21
- Applicants: Tien-Sheng Chen
- Inventors: Tien-Sheng Chen
- Web page: https://patentgrep.com/patent/US9038627B2

## CPC

- A61M 16/04: Tracheal tubes (catheters in general A61M25/00)
- A61M 16/0409: {with mean for closing the oesophagus}
- A61M 16/0427: {with removable and re-insertable liner tubes, e.g. for cleaning}
- A61M 16/0431: {with a cross-sectional shape other than circular}
- 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

An artificial oral airway, an esophageal blocker, and a pharyngeal airway assembly are disclosed. The artificial oral airway includes a main body and an airway. The airway penetrates the main body, and the main body has a body front end. The esophageal blocker is slidably connected to the artificial oral airway and penetrates the main body to contact the esophagus of a patient. The esophageal blocker has an opening portion, an esophageal blocking portion, and a slice body. The opening portion touches the body front end, and the esophageal blocking portion is used for blocking the esophagus of the patient. The slice body is used for connecting the opening portion and the esophageal blocking portion.

## Claims

### Claim 1

A pharyngeal airway assembly comprising:
a main body comprising:
a main body front end;
a main body rear end;
a bottom surface, a first side surface, a second side surface, and a top surface, wherein the first side surface corresponds to the second side surface and is connected to the bottom surface and the top surface, wherein the top surface is adapted to touch a tongue of a patient;
at least one blocking strip mounted on the bottom surface, the first side surface, and the second side surface at the main body rear end of the main body; and
an airway passing through the main body; and
an esophageal blocker slidably received along the bottom surface in the airway and adapted to touch an esophageal inlet of the patient, wherein the esophageal blocker part comprises:
an opening part touching the main body front end;
an esophageal blocker part adapted to block the esophageal inlet of the patient;
a slice body connecting the opening part and the esophageal blocker part, wherein the slice body is in a sheet-like shape having first and second, parallel, spaced surfaces and first and second spaced sides extending between and interconnecting the first and second, parallel, spaced surfaces; and
two blocking portions and an indentation, wherein the indentation is situated between the two blocking portions, wherein the two blocking portions are adapted to cover the esophageal inlet and the indentation is adapted to touch a rear laryngeal wall of the patient when the esophageal blocker enters a mouth of the patient.

### Claim 2 (depends on 1)

The pharyngeal airway assembly as claimed in claim 1, wherein the two blocking portions individually further comprise a blocking portion front end, and wherein each blocking portion front end is adapted to enter the esophageal inlet when the esophageal blocker enters the mouth of the patient.

### Claim 3 (depends on 2)

The pharyngeal airway assembly as claimed in claim 2, wherein shapes of each of the two blocking portions are substantially similar to a shape of an uprising hill.

### Claim 4 (depends on 3)

The pharyngeal airway assembly as claimed in claim 3, wherein the opening part further comprises an air vent and a blocking unit, wherein the air vent is situated on the blocking unit.