The present invention is a dual lumen endobronchial tube provided with a flexible wall dividing a cylindrical main tube into two lumens, where the outside wall of the main tube is reinforced, preferably by metal wire but alternately by a sufficiently rigid polymer ribbing which will achieve a desired reduction necessary outside wall thickness. The achievement of a reduction in necessary wall thickness enables sufficient hydraulic cross sectional area so that each lumen is capable independently of providing adequate ventilation to a patient even while a ventilation lumen is partly occluded when the insertion end of a bronchoscope or tube is inserted into the adjacent lumen to examine or treat the other lung.

Disclosed herein is a tracheal tube including a tube main body and a cuff that is mounted to the tube main body and has a barrel portion capable of being deflated and inflated. A covering region that covers a tracheal inner wall of a trachea in a state in which the barrel portion is inflated in the trachea has a contact part that gets contact with the tracheal inner wall and a wrinkle part that does not get contact with the tracheal inner wall, and the wrinkle part includes a first wrinkle and a second wrinkle that extends in a direction intersecting a predetermined part of the first wrinkle and has a termination part that does not intersect the predetermined part and terminates at such a position as to sandwich the contact part with the predetermined part.

A system for safely delivering an efficient amount of oxygen to essential organs, during cardiopulmonary resuscitation (CPR) is described; a respective method and an endotracheal device for delivering a semi-spontaneous positive-pressure ventilation are further described; the system comprises; at least one limb compression device, a positive-pressure ventilation system, an endotracheal tube, a cardiac stimulation device, an intra-tracheal pressure sensor, a synchronizer; the method comprises; compressing at least one limb device and occluding a blood flow into the limb, delivering a mixture of gases, providing an endotracheal tube, conferring a deployed configuration, conferring a withheld configuration, performing a cardiac stimulation device, determining a pressure, synchronizing a timing; the endotracheal device comprises; an elongated tube, a sealing cuff assuming a deployed configuration and withheld

Provided is a cuff having a trunk portion capable of deflation and inflation. The trunk portion in a state of the inflation is rotationally symmetric with respect to a prescribed axis and has a tapered part whose diameter gradually increases centering at the prescribed axis as it goes from one end side towards the other end side of the prescribed axis. An angle made by the prescribed axis and the tapered part is greater than or equal to 10 and less than or equal to 12. A wrinkle area ratio as a ratio between a wrinkle area of a part of the trunk portion where wrinkles form and a contact area of a part of the trunk portion contacting an inner wall of a trachea in a state in which the trunk portion is inflated in the trachea is less than or equal to 4.4%.

There is provided a tracheal tube that allows improvement in safety. The tracheal tube includes a tube main body, and a cuff that is mounted to the tube main body and has a barrel portion capable of being deflated and inflated. A covering region that covers a tracheal inner wall of a trachea in a state in which the barrel portion is inflated in the trachea has a sealing part that gets contact with the tracheal inner wall seamlessly in a circumferential direction of the barrel portion. The width of at least part of the sealing part is smaller than 1 mm.

Devices and methods for preventing tracheal aspiration as described, where a cuff assembly having an inflatable member with an inflation tube fluidly coupled may be placed over a proximal end of an endotracheal tube or laryngeal mask and inserted into the patient trachea with the endotracheal tube or separately after the endotracheal tube has already been positioned. In either case, the inflatable member may be positioned distal (or inferior) to the vocal cords and proximal to the endotracheal balloon via a delivery instrument which automatically positions the balloon in proximity to the vocal cords.

A cuffed tracheostomy tube has a sealing cuff 10, 10, 100, 100 attached to a shaft 1, 1, 1 of the tube towards its patient end by a rear end collar 30, 55, 103 bonded with the outside of the shaft. In one embodiment the patient end collar 31, 31 is folded unattached around the patient end face 60, 60 of the shaft and is attached to the inside of the tube. When inflated, the cuff inflates slightly away from the patient end face to cushion the tip of the tube. In another embodiment the cuff 100 is formed integrally with the shaft 51. In a further embodiment the cuff 100 has an integral portion 102 of a soft material that forms a patient end extension of the shaft 1.

The present invention is a dual lumen endobronchial tube provided with a flexible wall dividing a cylindrical main tube into two lumens, where the outside wall of the main tube is reinforced, preferably by metal wire but alternately by a sufficiently rigid polymer ribbing which will achieve a desired reduction necessary outside wall thickness. The achievement of a reduction in necessary wall thickness enables sufficient hydraulic cross sectional area so that each lumen is capable independently of providing adequate ventilation to a patient even while a ventilation lumen is partly occluded when the insertion end of a bronchoscope or tube is inserted into the adjacent lumen to examine or treat the other lung.

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 proximal end and a bifurcated distal portion having two distal ends. Each applicator may be coupled with one of the distal 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 tracheal tube include a conformable conduit that forms a respiratory passage to transfer respiratory gases to a patient. A helical inflatable lumen is formed in or on an interior surface of the conformable conduit. Fluid transferred into the helical inflatable lumen causes the inflatable lumen to assume an expanded configuration to expand an outer diameter of the conformable conduit relative to an unexpanded configuration of the helical inflatable lumen. When in the expanded configuration and inserted in a patient, conformable walls of the conformable conduit expand outwards to contact the tracheal walls such that the conformable conduit is self-sizing to a patient's trachea size.