Devices and methods for treating maxillary sinus disease

摘要

Devices and methods are described for improving drainage and/or aeration of maxillary sinuses and for treating maxillary sinus disease. Spacer devices are implanted through natural or man-made openings in the maxillary sinus. In some embodiments, the spacer device is loaded with a therapeutic substance which then exits the device over a desired time period to treat maxillary sinus disease.

主权项

1. A system useable for treating a disorder of a maxillary sinus, the system comprising a sinus spacer device that comprises:
(a) an elongate shaft having a lumen, a proximal end and a distal end, (b) an expandable reservoir insertable into a paranasal sinus and attached to the distal end of the elongate shaft such that a substance may be introduced through the lumen of the elongate shaft into the expandable reservoir, thereby causing the reservoir to expand to a size that is greater than the size of a paranasal ostium, wherein a sidewall of the reservoir comprises a plurality of openings configured to allow a substance that has been introduced into the reservoir to exit the reservoir into the maxillary sinus via the openings, and (c) a collapsible retention structure insertable into a paranasal sinus and biased to expand from a collapsed orientation to an expanded orientation to thereby prevent slipping of the reservoir outwardly from a paranasal ostium.