Described herein are methods of using inhaled nitric oxide for treating pulmonary hypertension and/or improving oxygen saturation in a patient with a ventilation-perfusion (V/Q) mismatch and/or pulmonary hypertension associated with lung disease.

The hiccup relieving apparatus includes a body with a first end having a mouthpiece, a second end having a restriction in the body between the first end and the second end. The restriction makes it difficult to draw fluid through the body to the user's mouth. The fluid can be air or the body can be immersed in water or other potable liquid in a container. The restriction requires an adult user, using the mouthpiece, to produce a threshold suction of for example water before water can flow from the water in the water container, through the body, through the mouthpiece, and to the user.

A catheter assembly for navigation including a flexible catheter having a proximal portion adjacent a proximal end and a distal portion adjacent a distal end and defining a longitudinal axis, the flexible catheter defining a lumen extending therethrough along a longitudinal axis and configured to enable translation of an instrument from the proximal end to the distal end. The flexible catheter defines a compound curve formed on the distal portion, wherein the compound curve includes an elbow bend and a radially curved portion. The elbow bend deflecting the distal portion of the flexible catheter from the longitudinal axis, while the radially curved portion extends from the elbow bend farther deflecting the distal portion about a center point. The catheter guide assembly for navigation includes a control handle disposed at the proximal end of the flexible catheter and is configured to advance and rotate the flexible catheter within a luminal structure.

A medical device and its method of use includes a catheter, at least two electromagnetic sensing coils located within the distal tip of the catheter, and a multi-element planar ultrasound transducer array located within the distal tip of the catheter and configured to transmit and receive ultrasonic energy. The device also includes an imaging system coupled to the ultrasound transducer and is used for creating an image of tissue in a first target plane that extends orthogonally from the catheter body. The medical device also includes a backscatter evaluation system for use in receiving and evaluating the acoustic spectral characteristics of tissues within a second target area within the first target plane.

A percutaneously delivered medical device and its method of use includes a catheter, at least two electromagnetic sensing coils located within the distal tip of the catheter, and at least one within the proximal handle, and a multi-element planar ultrasound transducer array located within the distal tip of the catheter and configured to transmit and receive ultrasonic energy in at least two imaging modes. The device also includes an imaging system coupled to the ultrasound transducer and is used for creating an image of tissue in a first target plane that extends orthogonally from the catheter body. The medical device also includes a backscatter evaluation system for use in receiving and evaluating the acoustic spectral characteristics of tissues within a second target area within the first target plane.

A control of an artificial intelligence medical suction device may be embodied by a controller through the steps of: setting a suction pressure of a suction pump connected to the catheter to be a predetermined reference suction pressure, moving the catheter forward so that a suction end portion of the catheter is inserted into the respiratory organ, and analyzing a state of the suction end portion of the catheter based on a variation value of an actual suction pressure measured from the catheter. The medical suction device is capable of determining whether the suction end portion thereof is adsorbed to an inner wall of bronchial tubes on its own.

Embodiments include a transition section for coupling a distal section and a proximal section of the guidewire. The transition section includes a main body having a first outer diameter; proximal and distal pin extensions having second and third outer diameters, wherein the proximal pin extension is configured to be fixed to the proximal section of the guidewire, and the distal pin extension is configured to be inserted into and fixed to the distal section of the guidewire. The distal pin extension includes a bore for receiving an inner core of the distal section of the guidewire. The first outer diameter may be greater than the second and third outer diameters. Also disclosed are methods of manufacturing a guidewire with such a transition section.

An intra-tumoral agent deployment apparatus for diagnosing and delivering targeted, sequential deployment of agents to an endo-bronchial and, or an intra-parenchymal tumor, said apparatus formed of, among other things, an elongated shaft assembly including: at least one lumen; an intra-tumoral probe wire for tumor traversal, slidably interposed there between or slidably disposed between any one of, or combination of the at least one lumen; and wherein the displacement of the intra-tumoral probe wire causes disruption of an endo-bronchial and, or an intra-parenchymal tumor tissue, and, or creating an inlet for deployment of at least a first agent comprising any one of a therapeutic agent and, or a delivery vehicle from the first lumen, and a subsequent second agent comprising any one of a therapeutic agent and, or a binding agent from any one of the first lumen, second lumen, and, or the delivery vehicle.

A catheter assembly for navigation including a flexible catheter having a proximal portion adjacent a proximal end and a distal portion adjacent a distal end and defining a longitudinal axis, the flexible catheter defining a lumen extending therethrough along a longitudinal axis and configured to enable translation of an instrument from the proximal end to the distal end. The flexible catheter defines a compound curve formed on the distal portion, wherein the compound curve includes an elbow bend and a radially curved portion. The elbow bend deflecting the distal portion of the flexible catheter from the longitudinal axis, while the radially curved portion extends from the elbow bend farther deflecting the distal portion about a center point. The catheter guide assembly for navigation includes a control handle disposed at the proximal end of the flexible catheter and is configured to advance and rotate the flexible catheter within a luminal structure.

A lung isolation tube assembly comprising a control valve that is adapted to be moved between a left lumen position, a right lumen position, and a both lumens position, a connector that is in fluid communication with the control valve, and a tube that is in fluid communication with the connector. The tube comprises a left lumen that is in fluid communication with the connector and a right lumen that is in fluid communication with the connector. The assembly also comprises a first cuff that is disposed around a portion of the right lumen and the left lumen and a second cuff that is disposed around the left lumen. The assembly is adapted to convey airflow or oxygen to a human lung via at least one of the left lumen and the right lumen. A method for isolating a human lung.