# US 11,253,665 B2 · Larynx mask having a connector

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- Number: US 11,253,665 B2
- Document ID: US11253665B2
- Status: Granted
- Kind: B2
- Application number: 16/678,224
- Filed: 2019-11-08
- Published: 2020-07-02
- Granted: 2022-02-22
- Earliest claimed: 2008-11-27
- Assignees: Singularity AG
- Applicants: Singularity AG
- Inventors: Werner F. Dubach
- Web page: https://patentgrep.com/patent/US11253665B2

## CPC

- A61M 16/0447: {Bell, canopy or umbrella shaped}
- A61M 16/04: Tracheal tubes (catheters in general A61M25/00)
- A61M 16/0409: {with mean for closing the oesophagus}
- A61M 16/0415: {with access means to the stomach}
- A61M 16/0427: {with removable and re-insertable liner tubes, e.g. for cleaning}
- A61M 16/0816: {Joints or connectors}
- B29C 65/48: using adhesives {, i.e. using supplementary joining material; solvent bonding}
- A61M 16/0486: {Multi-lumen tracheal tubes}
- A61M 2207/10: Device therefor
- B29L 2031/753: {Medical equipment; Accessories therefor (bloodbags, medical bags B29L2031/7148; artificial eyes B29L2011/0008)}
- 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)}
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES

## Abstract

A larynx mask is provided that comprises a dorsal cover plate with an inflatable cuff integrally formed thereon and a tube connecting connector having an insertion section for connecting to an insertion tube. Two separate lumens are provided in the region of the insertion section, these being the esophageal lumen and a respiration lumen. These two lumens are separated from each other by a separating and supporting, wall. The separating and supporting wall extends from the insertion section to the tip of the larynx mask. While the esophageal lumen opens into an esophageal outlet at the proximal end of the mask, the respiration lumen opens in the ventral direction and is closed in the proximal direction close to the tip of the mask. Such a larynx mask is produced in one piece by way of injection of molding and is reinforced by the separating or supporting wall to prevent kinking.

## Claims

### Claim 1

A larynx mask formed as a single piece comprising:
(i) a dorsal cover plate with a circumferential inflatable cuff formed thereon;
(ii) a tube connecting connector having an insertion section for connecting to at least one insertion tube;
(iii) a respiration lumen and an oesophageal lumen;
(iv) a separating and supporting wall formed substantially centrally on the cover plate, wherein the separating and supporting wall extends longitudinally in a ventral direction from the cover plate;
(v) a circumferential adhesive or welding wall positioned on the cover plate, the circumferential adhesive or welding wall extending longitudinally in a ventral direction from the cover plate towards a lower edge of the cuff, and being thickened relative to a wall of the cuff; and
(vi) a circumferential adhesive or welding edge formed on the lower edge of the cuff and extending in a dorsal direction towards the circumferential adhesive or welding wall,
wherein in an area of the insertion section of the tube connecting connector, the separating and supporting wall forms a bi-luminal tube separating the respiration lumen from the oesophageal lumen, and
the separating and supporting wall extends downwardly from the dorsal cover plate in a ventral direction less far from the cover plate than the circumferential adhesive or welding wall.

### Claim 2 (depends on 1)

The larynx mask of claim 1 formed by injection molding.

### Claim 3 (depends on 1)

The larynx mask of claim 1, wherein the separating and supporting wall extends perpendicular to the dorsal cover plate.

### Claim 4 (depends on 1)

The larynx mask of claim 1, wherein the separating and supporting wall extends to an oesophageal outlet, which is formed by an opening in the dorsal cover plate and extends over the inflatable cuff.

### Claim 5 (depends on 1)

The larynx mask of claim 1, wherein a cross-section of the respiration lumen is larger than a cross-section of the oesophageal lumen in an area of the insertion section.

### Claim 6 (depends on 1)

The larynx mask of claim 1, wherein the insertion section is limited by a projection that narrows a cross-section of the insertion section and serves as a stop for the at least one insertion tube.

### Claim 7 (depends on 1)

The larynx mask of claim 1, wherein the separating and supporting wall and the circumferential adhesive or welding wall extend parallel to one another.

### Claim 8 (depends on 1)

The larynx mask of claim 1, wherein the circumferential adhesive or welding wall delimits a respiration chamber below the dorsal cover plate.

### Claim 9

A larynx mask formed as a single piece comprising:
(i) a dorsal cover plate with a circumferential inflatable cuff formed thereon;
(ii) a tube connecting connector having an insertion section for connecting to at least one insertion tube;
(iii) a respiration lumen and an oesophageal lumen each in functional contact with the at least one insertion tube;
(iv) a separating and supporting wall formed substantially centrally on the cover plate, wherein the separating and supporting wall extends longitudinally in a ventral direction from the cover plate and extends from the tube connecting connector to an oesophageal outlet, above the cuff;
(v) a circumferential adhesive or welding wall positioned on the cover plate, the circumferential adhesive or welding wall extending longitudinally in a ventral direction from the cover plate towards a lower edge of the cuff, and being thickened relative to a wall of the cuff; and
(vi) a circumferential adhesive or welding edge formed on the lower edge of the cuff and extending in a dorsal direction towards the circumferential adhesive or welding wall, and
wherein the dorsal cover plate, the tube connecting connector, the respiration lumen, the oesophageal lumen, and the separating and supporting wall are all made from the same material, and
the separating and supporting wall extends downwardly from the dorsal cover plate in a ventral direction less far from the cover plate than the circumferential adhesive or welding wall.

### Claim 10 (depends on 9)

The larynx mask of claim 9 formed by injection molding.

### Claim 11 (depends on 9)

The larynx mask of claim 9, wherein the separating and supporting wall extends perpendicular to the dorsal cover plate.

### Claim 12 (depends on 9)

The larynx mask of claim 9, wherein the oesophageal outlet is formed by an opening in the dorsal cover plate and extends over the inflatable cuff.

### Claim 13 (depends on 9)

The larynx mask of claim 9, wherein a cross-section of the respiration lumen is larger than a cross-section of the oesophageal lumen in an area of the insertion section.

### Claim 14 (depends on 9)

The larynx mask of claim 9, wherein the insertion section is limited by a projection that narrows a cross-section of the insertion section and serves as a stop for the at least one insertion tube.

### Claim 15 (depends on 9)

The larynx mask of claim 9, wherein the separating and supporting wall and the circumferential adhesive or welding wall extend parallel to one another.

### Claim 16 (depends on 9)

The larynx mask of claim 9, wherein the circumferential adhesive or welding wall delimits a respiration chamber below the dorsal cover plate.