摘要:
A medical device and a system and for dilating a stenotic airway of a patient are described. The medical device comprises a proximal end, a distal end, and a shaft system having an inflation lumen and a ventilation lumen the proximal end. The shaft system has a proximal shaft section and a distal shaft section. An inflatable balloon is attached to the distal shaft section in a position that is proximal to the distal end. The ventilating tip is distal to the balloon on the distal shaft section and has one or more radially facing openings. A method for treating a stenotic airway includes inserting the medical device into a patient's airway, and dilating and ventilating the airway.
摘要:
A method for cleaning an isthmus of a Eustachian tube (ET) of a patient includes using an instrument. The instrument includes a proximal portion, a distal portion, and a shaft extending therebetween, and a treatment feature disposed at the distal portion. The method includes directing the instrument into an oro-nasal cavity of the patient and advancing at least the distal portion of the instrument into an opening of the ET. The method further includes further advancing the instrument within the ET so that the treatment feature is disposed past, or is coincident with, the isthmus. The method further includes moving the treatment feature relative to the isthmus to clean the isthmus.
摘要:
An inflator system comprises a dilation catheter and a fluid pressure regulator assembly. The dilation catheter comprises a shaft defining a lumen and being sized to fit within an anatomical passageway. The dilation catheter further comprises a dilator configured to receive fluid through the lumen and thereby expand in response to fluid communicated through the lumen. The fluid pressure regulator assembly comprises a pump in fluid communication with the dilation catheter. The fluid pressure regulator assembly further comprises a control module configured to store one or more fluid pressure profiles and is operable to receive a selection of a particular fluid pressure profile from the one or more of fluid pressure profiles. The control module is operable to selectively drive the pump in accordance with a selected fluid pressure profile. The fluid pressure regulator assembly further comprises a user input feature operable to selectively activate the control module.
摘要:
A system for treating a disease or disorder of the ear, nose or throat of a human or animal subject, said system comprising a guide catheter (40c), a working catheter (10); a guidewire (GW) and a member (61) that is attachable to the guidewire and limits the extent to which the guidewire is advanceable through the working catheter.
摘要:
A system for treating a disease or disorder of the ear, nose or throat of a human or animal subject, said system comprising a guide catheter (40c), a working catheter (10); a guidewire (GW) and a member (61) that is attachable to the guidewire and limits the extent to which the guidewire is advanceable through the working catheter.
摘要:
A system for treating a disease or disorder of the ear, nose or throat of a human or animal subject, said system comprising a guide catheter (40c), a working catheter (10); a guidewire (GW) and a member (61) that is attachable to the guidewire and limits the extent to which the guidewire is advanceable through the working catheter.
摘要:
A dilation catheter includes a shaft and an expandable element. The shaft includes a proximal portion and a distal portion. The distal portion includes a tip and a bend. The tip is sized and configured to pass through an isthmus of a Eustachian tube (ET). The bend is proximal to the tip. The bend is formed at an angle configured to provide insertion of the tip into the isthmus of the ET via an ear canal associated with the ET. The expandable element is disposed at the distal portion of the shaft. The expandable element is configured to transition between a non-expanded state and an expanded state. The expandable element in the non-expanded state is configured for insertion into the ET via the isthmus. The expandable element in the expanded state is configured to dilate the ET.
摘要:
An apparatus comprises a shaft, an expandable dilator (1850), and at least one ventilation pathway (1855). The shaft defines a longitudinal axis and comprises a distal and proximal ends with at least one shaft lumen (1853). The expandable dilator comprises body with its own proximal and distal ends (1856, 1851). The body is configured to transition between a contracted state and an expanded state. The body is configured to dilate a Eustachian tube of a patient in the expanded state. The at least one ventilation pathway is configured to provide ventilation from the distal end of the body to the proximal end of the body when the body is in the expanded state. In some examples, the ventilation pathway comprises a set of transversely oriented vent openings formed through the shaft. In some other examples, the ventilation pathway comprises a space defined between one or more radially outwardly protruding features of the expandable dilator.
摘要:
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.