Frontal sinus dilation catheter

摘要

A balloon dilation catheter includes a substantially rigid inner guide member and a movable shaft coupled to a balloon that is slidably mounted on the substantially rigid inner guide member. To treat a sinus cavity of a subject using the balloon dilation the substantially rigid inner guide member is advanced into a drainage pathway of the sinus (e.g., frontal recess) of the subject via a nasal passageway. The shaft and balloon are advanced in a distal direction over the substantially rigid inner guide member to place the balloon in the drainage pathway. The balloon is inflated to expand or otherwise remodel the drainage pathway.

主权项

1. A method of treating a sinus cavity of a subject comprising:
providing a balloon dilation catheter that includes
a handle defining a slot extending along a longitudinal exterior surface of the handle,a balloon mounted on a shaft,a first lumen extending through the shaft,a second lumen in fluidic communication with the balloon,an inner guide member extending through the first lumen,an inflation port in fluidic communication with a proximal end of the second lumen, anda balloon advancement member slidably disposed within the slot wherein the second lumen does not extend through the balloon advancement member; advancing the inner guide member through a nostril of the subject while at least a portion of the inner guide member is disposed within the first lumen; advancing the inner guide member to a desired location within a drainage pathway of the sinus cavity; advancing the balloon advancement member distally to a position along the handle that is distal with respect to the inflation port to place the balloon at the desired location; and directing a fluid through the inflation port to inflate the balloon at the desired location.