Device for dispensing a pulverulent product having a reservoir unit (100) connected on the one hand, to an air expulsion system (200) and on the other hand to a dispensing head (300) provided with a dispensing orifice (310). The reservoir unit (100) has a reservoir (110) having substantially the form of a hollow cylinder, with a distal opening (111), a proximal opening (112), and a metering passage (113) connecting the distal and proximal openings (111, 112), a one-way valve (115) being positioned between the metering passage (113) and the distal opening (111), the proximal opening (112) of the reservoir (110) forming a filling cone which tapers towards the metering passage (113) to facilitate filling of the metering passage (113) with a dose of powder.

Some implementations of the disclosure are directed to a eustachian tube dilator system including: a housing for removably inserting an endoscope, the housing including an insert ratchet mechanism or top down ratchet mechanism configured to couple to a proximal rigid end of the endoscope; and a hollow balloon cannula coupled to and distally extending from the housing, the hollow balloon cannula including a curved distal end configured to couple to a flexible distal end of the endoscope, and the hollow balloon cannula configured for insertion of a balloon catheter used for eustachian tube dilation such that a distal balloon of the balloon catheter is advanced through the hollow balloon cannula from a proximal opening of the hollow balloon cannula to a distal opening of the hollow balloon cannula.

A fluid delivery and airway management device including a tubular member dimensioned for introducing a fluid into a trachea of a mammal, the tubular member having a proximal portion, a distal portion, and a middle portion between the proximal portion and the distal portion. The tubular member is dimensioned for positioning of the proximal portion in an oral cavity of a mammal, the middle portion in an oropharynx of the mammal and the distal portion in an esophagus of the mammal. An inflatable oral cavity balloon is positioned at the proximal portion and dimensioned to occlude the oral cavity. An inflatable esophageal balloon is positioned at the distal portion and dimensioned to occlude the esophagus. Apertures may he formed within the middle portion such that a fluid introduced into the tubular member is output through the apertures to a trachea.

A system includes an apparatus and a controller, according to an embodiment. The apparatus is configured to maintain an airway of a subject open while the subject is sleeping by applying to the airway a pressure having a magnitude, and the controller is configured to cause the apparatus to change the magnitude of the pressure over a period that begins at a settable start time. For example, the system can be configured to treat a subject's sleep apnea with positive or negative pressure, and to function as an alarm clock by beginning to change the pressure magnitude at a settable start time, and to continue changing the pressure over a period with a settable duration (or settable stop time) to gently awaken the subject by the end of the period.

A medical system includes a tube (102) configured to pass internally into a body and an index (108) disposed on the tube and configured to be visible internally within the tube. An outermost nested cannula (110) component is affixed within the tube with a geometric relationship with the tube as indicated by the index. An imaging device (106) is configured to image an anatomic reference relative to the index such that alignment of the outermost nested cannula component is provided by aligning the at least one index with the anatomic reference.

[Object] It is an object of the present invention to provide a catheter for forming a biological tissue holding member by which a body lumen can be maintained in a dilated state even after a procedure of dilating a target part of the body lumen. [Solution] The catheter (100) for forming a biological tissue holding member includes: an elongated main body section (30) having a lumen (31 and 32) through which can flow a curable liquid substance that is cured in a living body; a first discharge section (10) through which the curable liquid substance supplied via the main body section is discharged in a filamentous form in a first direction intersecting the axial direction of the main body section; a second discharge section (20) which is disposed on the distal side along the longitudinal direction of the main body section as compared with the first discharge section and through which the curable liquid substance supplied via the main body section is discharged in a second direction intersecting both of the axial direction and the first direction; a first rotation driving unit (16) which rotates the first discharge section in a first rotation direction; and a second rotation driving unit (24) which rotates the second discharge section in a second rotation direction reverse to the first rotation direction.

A dilation system includes a balloon catheter and a puncturing assembly. The balloon catheter includes a shaft, a dilator coupled to a distal end of the shaft, and a lumen extending through the shaft and the dilator. The dilator is expandable from a collapsed state to an expanded state. The puncturing assembly includes at least one cutting member. The puncturing assembly is positionable within the lumen of the balloon catheter or along an exterior of the shaft when the puncturing assembly is in a first position. The puncturing assembly transitions to a second position to puncture the lumen of the balloon catheter and/or to puncture the dilator, to thereby drain fluid from the dilator.

A respiratory obstruction removal device, which includes a face mask and a negative pressure generating device. The negative pressure generating device includes a grip section, an extendable tubular body, and an annular interface, connected in sequence. The extendable tubular body has a variable volume cavity. The face mask includes an upper part that fits with the annular interface, a lower part that corresponds to a face of a patient, and a connecting body that links the upper and lower parts. The respiratory obstruction removal device also includes a first one-way valve located on the annular interface and a second one-way valve for unidirectional expulsion of gas to the outside. The grip portion and the extendable tubular body are detachably connected. This design is efficient and easy to carry and transport, suitable for emergency use in different scenarios.

An intubation assistance device facilitates insertion of an endotracheal tube or a guide wire into a patient's trachea without requiring a laryngoscope. The device includes a curved flexible tubular member that has a proximal portion having a proximal end, a distal portion having a distal end, and a curved portion between the proximal portion and the distal portion. A lumen extends from the proximal end of the tubular member and terminates in the curved portion of the tubular member. The lumen is sized and shaped so that an endotracheal tube and/or a guide wire is axially moveable through the lumen. A ramp is disposed at a distal end of the lumen, and is angled to facilitate insertion of the endotracheal tube and/or guide wire into the patient's trachea. The distal portion of the tubular member includes an esophageal protrusion that is configured to be inserted in the patient's esophagus.

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.