US 12,629,491 B2Granted

Laryngeal mask airway

AssigneeChangsha Magill Medical Technology Co., Ltd.

InventorsDaqing Li, Mijie Tang, Zhonghui Liu

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Abstract

Provided is a laryngeal mask airway, comprising a laryngeal mask airway main body (10) and a view device (20). The laryngeal mask airway main body (10) comprises a catheter (12), and a sealing base (13) connected to the distal end of the catheter (12), and the view device (20) comprises a control part (22) and a vidicon (23), wherein an image sensor (231) is formed at the distal end of the vidicon (23), and an air guide channel (101) and a view lumen (103) are formed in the laryngeal mask airway main body (10); and a first blind end part (103a) that is closed by a light-transmitting material is formed at the distal end of the view lumen (103), the vidicon (23) is inserted into the view lumen (103) in a pluggable manner, the distal end of the view lumen (103) and the distal end of the vidicon (23) extend into the sealing base (13), and the distal end of the vidicon (23) can be bent and reset. The vidicon (23) is sealed inside the view lumen (103) and does not come into contact with internal tissue of a patient during use, such that the vidicon (23) can be reused in a relatively safe manner; and the distal end of the vidicon (23) can bypass the epiglottis, and the drooping epiglottis can be pushed aside by means of controlling the distal end of the vidicon (23) to be bent upwards so as to obtain a good view.

Claims22

Dependent claims

A laryngeal mask airway comprising:

a laryngeal mask airway main body comprising a tubular body and a sealing dome connected to a distal end of the tubular body, and
a view device comprising a control part and an image tube connected to the control part, wherein a distal end of the image tube is provided with an image sensor, the laryngeal mask airway main body being formed with an airway channel and a view lumen in the laryngeal mask airway main body;
a distal end of the view lumen being formed with a first light-transmitting blind end, the image tube being inserted into the view lumen in a pluggable manner, the distal end of the view lumen and the distal end of the image tube extending into the sealing dome, and the distal end of the image tube capable of being bent and returned to an initial state under control of the control part,
wherein the laryngeal mask airway main body comprises a light guide, the first light-transmitting blind end surrounds the distal end of the image tube, and a distal end of the light guide and the first light-transmitting blind end are disposed to be optically isolated from each other, and
wherein the tubular body is formed with a first accommodation chamber for receiving a part of the image tube in the tubular body;
the laryngeal mask airway main body comprises a sealing part isolating the first accommodation chamber from a space within the sealing dome and formed with a first through hole in the sealing part, and a first hose extending at least partially into the sealing dome;
a distal end of the first hose is formed as the first light-transmitting blind end, a proximal end of the first hose is hermetically connected to a periphery of the first through hole of the sealing part, the image tube is disposed in the first accommodation chamber and the first hose by passing through the first accommodation chamber and the first hose longitudinally, and the distal end of the image tube is disposed in the first hose.

4 more elements

A laryngeal mask airway comprising a laryngeal mask airway main body and a view device;

the view device comprising a housing, a light source assembly, an image tube and a display;
the housing formed with a light source cavity in the housing, and the housing formed with a light emitting port on the housing to align with a light guide of the laryngeal mask airway, the light emitting port communicating with the light source cavity and exposed to an outer surface of the housing;
the light source assembly disposed in the light source cavity and emitting visible light to be emitted through the light emitting port;
a proximal end of the image tube connected to the housing;
the display mounted on the housing, and the image tube electrically connected to the display;
the laryngeal mask airway main body comprising a tubular body, a sealing dome connected to a distal end of the tubular body, and the light guide, a proximal end of the tubular body detachably connected to a bottom of the housing;
the laryngeal mask airway main body formed with a view lumen and a light guide lumen in the laryngeal mask airway main body, the image tube inserted into the view lumen in a pluggable manner, the light guide preset in the light guide lumen, and a proximal end of the light guide aligning with the light emitting port to guide light from the light emitting port to a distal end of the light guide, a distal end of the view lumen formed with a first light-transmitting blind end surrounding a distal end of the image tube, and the distal end of the light guide and the first light-transmitting blind end disposed to be optically isolated from each other.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/427,705Filed 3 Jan 2020
Priority: CN 201910106487.42 Feb 2019
Published: US 2022/0126042 A128 Apr 2022
Granted: 19 May 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

A61M 16/0409
Special features for tracheal tubes not otherwise provided for: with mean for closing the oesophagus
A61B 1/00052
Display arrangement: positioned at proximal end of the endoscope body
A61B 1/00128
Connectors, fasteners and adapters, e.g. on the endoscope handle: mechanical, e.g. for tubes or pipes
A61B 1/00135
Accessories for endoscopes: oversleeves mounted on the endoscope prior to insertion