Devices systems and methods are disclosed for removing secretions from the lumen of a functional assessment catheter for the lungs. The system comprises a flushing unit configured to deliver a clearing fluid to the lumen of the pulmonary catheter to remove debris, secretions, or moisture from the lumen or sensors.

A device for targeted delivery of a substance to an airway may include a conduit and at least two applicators. The conduit may include a primal end and a bifurcated distal portion having two distal ends. Each applicator may be coupled with one of the distill ends of the conduit and may be configured to direct the substance out of the applicator toward one of two sides of an airway. A method for targeted delivery of a substance to an airway may involve advancing a substance delivery device into the airway, contacting two sides of the airway with at least two applicators of the substance delivery device, such that each applicator contacts the airway near a glossopharyngeal nerve and/or a superior laryngeal nerve on each of the two sides of the airway, and delivering the substance through the applicators to contact the airway along the two sides.

A ventilation catheter and airway management system is described to create conditions that tend to clear secretions during the normal conduct of ventilation by having an exclusive outflow channel and/or to use a programed cuff leak combined with PEEP to protect the airway. The secretion clearing endotracheal tube may include separate inflow and outflow paths as part of a double lumen, to facilitate breathing when placed in a patient. The double lumen portion intersecting to form a single lumen for protrusion into the intratracheal region allowing the new inspiratory fluid from the airway management system to flow into a patient and the used inspiratory fluid from the patient to flow back to the airway management system. A pharyngeal suction component removes fluid from the intratracheal region via periodic suctioning.

The present disclosure describes systems and apparatuses related to a bronchial blocking tube and/or a laryngeal mask or similar device, and methods for using the same. In an exemplary airway device, the device may comprise a mask portion being defined at a distal end of the airway device, and may be configured and dimensioned to be positioned in a hypopharyngeal area of a patient to cover and seal around a glottis of the patient; and a channel portion extending from a proximal end of the airway device to the mask portion. The channel portion may include first and second channels, wherein the second channel may obliquely merge with the first channel proximate to an opening of the first channel. In an exemplary embodiment, a third channel may form a combined pharyngeal-gastric access channel.

A tracheal tube including: a catheter, a suction tube, a gas-charging tube, and an inflatable balloon. The catheter includes a first portion and a second portion. The first portion includes a first hole and a second hole, and the second portion includes a third hole and a fourth hole. The gas-charging tube includes a first end and a second end. The suction tube includes a first end and a second end. The inflatable balloon is disposed on the second portion of the catheter. The inflatable balloon includes a flange, and the inflatable balloon is fixed on the second portion via the flange. The first end of the gas-charging tube is disposed outside the catheter, and the second end of the gas-charging tube enters the catheter via the first hole and extends to connect to the third hole. The first end of the suction tube is disposed outside the catheter.

An artificial airway device to facilitate lung ventilation of a patient. The device includes an airway tube including a lumen, a mask at one end of the airway tube. The mask includes a backplate and having a peripheral formation capable of forming a seal around the circumference of the laryngeal inlet. The peripheral formation surrounding a hollow interior space or lumen of the mask and the airway tube opening into the lumen of the mask. The device further includes fixation structure for fixation of the device to a patient when the device is in use. The fixation structure is movable with respect to the airway tube to allow for correct positioning of the device with respect to the anatomy of the patient.

Embodiments can provide an expandable nasogastric intubation assembly, comprising a tube subassembly and an expander subassembly, comprising an inflatable balloon comprising a proximal expander component section and a distal expander component section wherein the proximal expander component section is located between the proximal end of the intubation assembly and the distal expander component section; wherein the distal expander component section is located between the distal end of the intubation assembly and the proximal expander component section; wherein the inflatable balloon is coupled to the tube subassembly, the proximal expander component section is configured to be inflated from an injection of fluid into at least one first opening located in the second passageway, and the distal expander component section is configured to be inflated by the injection of fluid into at least one second opening located in the second passageway.

An oral or nasal endotracheal tube includes a tube part, a first balloon and a second balloon. The tube part extends along a direction with a tube shape and an end portion of the tube part is intubated into trachea. The first balloon extends with passing through the tube part, and expands or contracts a block cuff. The second balloon extends with passing through the tube part, and expands or contracts a guide cuff. The block cuff uniformly expands around the tube part and blocks the trachea after the tube part is intubated into the trachea. The guide cuff ununiformly expands around the tube part and guides the tube part to be intubated into the trachea.

The present invention relates to a tracheal ventilation apparatus (1), in particular a tracheostomy cannula or an endotracheal tube, having a cannula tube (2), which has a proximal tube portion (3) with a proximal opening (3a) and a distal tube portion (4) with a distal opening (4a). In order to provide an easy-to-handle tracheal ventilation apparatus that can easily be inserted and that impedes a swallowing process as little as possible, in which tracheal ventilation apparatus the risk of injuring the tracheal wall is reduced, it is proposed, according to the invention, that the proximal tube portion (3) and the distal tube portion (3) are connected to one another by way of an axially air-permeable joint (7) that facilitates at least restricted mobility and, in particular, pivotability of the axis of the distal tube portion (4) with respect to the axis of the proximal tube portion (3).

A laryngeal mask airway (LMA) device includes a backplate, an inflatable balloon, an airway tube, and a non-inflatable skeleton, which extends anteriorly from the backplate, and which is shaped so as to define a skeleton anterior side that has a pre-formed shape. A distal end of an inflation tube is coupled in fluid communication with (i) an interior of the inflatable balloon for supplying air to the inflatable balloon, and (ii) at least a portion of the skeleton anterior side. The inflatable balloon is shaped so as to define an inflatable annular cuff which (a) covers at least a portion of the skeleton anterior side, and (b) has a cuff anterior side that is configured to form a seal around a laryngeal inlet of a patient when the inflatable annular cuff is disposed at an LMA-insertion location within a throat of the patient. Other embodiments are also described.