A laryngeal mask includes a housing having a neck part and a head part extending from the neck part. The head part includes a sealing face and an opposing face, the sealing face and the opposing face being connected by an enclosing wall extending upwardly from the sealing face. The sealing face has a peripheral seal for forming a seal around a larynx and having an opening arranged to be positioned over a laryngeal opening. The mask further includes an airway tube positioned within the housing and extending from the neck part to the opening in the peripheral seal. The mask further includes a first drain tube extending from the neck part to an aperture located in a distal tip of the head part, and a second drain tube extending from the neck part to a position within the head part that is proximal to the distal tip.

A laryngeal mask apparatus includes a mask portion, a breathing tube and a suction tube. The suction tube is adapted for connection to a suction-producing device. The suction tube further includes suction ports that suck fluids and secretions from the patient's hypopharyngeal region when suction is created within the interior of the suction tube. The breathing tube is adapted for connection to a ventilating system. Air flows through the breathing tube and into the mask portion. A capillary tube is positioned within the interior of the suction tube. When the mask portion is positioned within a patient's throat and suction is created within interior of the suction tube, the suction ports suck the fluids and secretions in the patient's hypopharyngeal region. At the same time, the suction tube and capillary tube cooperate to provide a stream of air that decreases the direct suction forces on the mucosa of the patient's throat that are caused by the suction ports. The laryngeal mask apparatus includes a scope tube having an interior and an inner tube disposed within the interior of the scope tube. The inner tube is sized for receiving a gastric tube.

A method of aspiration detection and intubation placement verification for an endotracheal tube comprises: Attempting to intubate the patient with an endotracheal tube; Providing a multimodal aspiration detection and intubation placement verification system for an endotracheal tube having a housing and sensors within the housing, wherein the sensors include at least i) a sensor for a first gastric acid, and ii) a sensor for a second gastric acid different from the first gastric acid; Coupling the housing to the endotracheal tube whereby patient exhalation can flow through an internal passage of the housing, wherein the sensors within the housing come into contact with the patient exhalation; and Utilizing the sensor output for at least one of Detecting aspiration and to verification of intubation placement. The sensors include an electric chemical sensor array which can detect odor molecules at concentrations of less than 10 parts per billion in the gas phase.

The invention discloses a multi-tube body adapter which is connected to a plurality of outer tubes for application to a digestive system and a respiratory system of a human body. The multi-tube body adapter includes a housing to form an accommodating space of the multi-chamber. The plurality of chambers is not in communication with each other. One end of the plurality of chambers respectively provides a connection port and the other end of the plurality of chambers is commonly connected to an extension having a plurality of openings. By connecting with the chamber, the connection port and the opening, a supply path for separately providing the supply path of the respiratory system and the digestive system can be formed.

Disclosed are laryngeal airway devices for human and veterinary use. The device includes an airway tube having a distal end and a proximal end, the distal end of the airway tube is provided with a pre-formed and non-inflatable peri-pharyngeal bowl, the peri-pharyngeal bowl has a posterior bowl portion having a back dorsal portion and a side wall extending around and depending from the periphery of the back dorsal portion to define an internal space, the peri-pharyngeal bowl further having a resiliently deformable flange extending laterally from the side wall of the back dorsal portion which defines an extended internal space, the resiliently deformable flange having inner and outer surfaces that extend to a circumferential edge.

An airway device to be inserted into a patient's throat and to be function as a supraglottic airway device during a positive pressure ventilation and spontaneous ventilation that includes an air tube, an air sac, a tongue lifting means, a pulling unit and a drainage systems. The pulling unit will be pulled by an operator's hand to cause the tongue lifting means upward movement to open up the air sac and lift up the tongue base. The air tube lumen and the air sac are configured to have inflow airflow be divided and follow specific route therefore to deliver the focused airflow to vocal cords opening, and also to let inspired airflow enter desired area of the air sac to expand the air sac to form seals with surrounding tissue. During expiration, the pressure will be relieved. Different design of the drainage system can be configured to drained fluid from upper esophagus or from posterior pharyngeal wall.

The invention relates to a positioning sputum suction laryngeal mask. The positioning sputum suction laryngeal mask comprises a mask body and a mask body tube, wherein the mask body comprises a mask body bottom plate and a mask main body arranged on the mask body bottom plate, a central region in the mask main body is provided with a mask body cavity communicated with the mask body tube, a stomach decompression tube corresponding to the stomach mouth is arranged on the back side of the mask body bottom plate, and the stomach decompression tube is isolated from the mask body cavity through the mask body bottom plate. The positioning sputum suction laryngeal mask also comprises a connection suction mechanism capable of realizing negative pressure suction in a gas supply process. The connection suction mechanism comprises a suction connecting tube which is arranged in the mask body bottom plate, and the end, located in the mask body bottom plate, of the suction connecting tube is communicated with the stomach decompression tube. The positioning sputum suction laryngeal mask can be effectively positioned, has lower complexity and usage costs, can ensure the ventilation and sealing effect without air inflation in use, can realize suction of secretions in a ventilation process, can avoid airway blockage caused by epiglottis, and can improve the stability and reliability in use.

Disclosed is a three-cavity flushable fish mouth laryngeal mask airway catheter, including a cover, the cover is provided with a respiratory chamber for communicating with a respiratory tract and a digestive chamber for communicating with a digestive tract; the digestive chamber is provided with a digestive opening for communicating the digestive chamber and the digestive tract; a peripheral wall of the digestive chamber is tapered from an end away from the digestive opening to the digestive opening; an edge of the digestive opening includes a plurality of protrusions; and the plurality of protrusions are configured to be close to each other due to a squeezing force during a process of inserting the three-cavity flushable fish mouth laryngeal mask airway catheter into a throat to narrow the digestive opening.

The present invention provides an improved visual laryngeal mask comprising a snorkel, an end of the snorkel is provided with a fixing seat. The fixing seat is provided with an airbag, and the fixing seat has a recess which is provided with an airway opening. The inner wall of the snorkel longitudinally extends an imaging cavity and a cleaning channel. The imaging cavity has a built-in imaging device, and the imaging cavity and the cleaning channel protrude forward relative to the airway opening to form a stopper which prevents an epiglottis from blocking the imaging device.

This invention is a device to be used with a system for supplying anaesthetic or respiratory gases into the airway of a human or an animal. This device is a supraglottic airway device, which includes a shaft with three tubes one for ventilation purpose and rest two for dynamic cuff inflation and other for suctioning purpose. The dynamic cuff is inflated by the gases supplied directly from the anaesthesia or ventilator circuit through a specialised adaptor via dynalumen. The cuff inflation lumen (DynaLumen) will also be having a locking mechanism to enable its use like a conventional LMA; i.e., the cuff can be left continuously inflated both during positive pressure ventilation as well as less during expiratory phase and during spontaneous respiration.