Devices and methods for dilating a paranasal sinus opening and for treating sinusitis

摘要

Medical devices which are adapted to be implanted into a patient for a limited period of time using minimally invasive insertion procedures for dilating a stenotic opening, such as a stenotic sinus opening, are provided. The devices and methods can be used for treating sinusitis and other nasal and/or sinus disorders.

主权项

1. A method of dilating a stenotic opening of a paranasal sinus in a subject, the method comprising:
positioning a device in the stenotic opening, wherein the device comprises:
(a) two or more self-expanding drivers configured to expand an expandable portion from a non-expanded configuration to an expanded configuration in a substantially radial direction with respect to a longitudinal axis of the device with a pressure ranging from 1 atm to 500 atm, wherein the two or more drivers comprise a proximal driver proximate to the proximal end of the device and a distal driver proximate to the distal end of the device; and(b) the expandable portion disposed peripherally around the two or more drivers and configured to expand from the non-expanded configuration to the expanded configuration, wherein the non-expanded configuration is sized to be positioned within the stenotic opening, wherein the two or more drivers expand the expandable portion from the non-expanded configuration to the expanded configuration over a period of 1 hour or more while the device is positioned in the stenotic opening, thereby dilating the stenotic opening.