Uncinate process support for ethmoid infundibulum illumination

Patent metadata

Field	Value
Publication number	US-9615959-B2
Application number	US-201313832167-A
Country	US
Kind code	B2
Filing date	Mar 15, 2013
Priority date	Mar 15, 2013
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

A dilation apparatus comprises an elongate member and a dilation assembly that is slidable along the elongate member. The dilation assembly comprises a platform and an inflatable dilator. The platform and the elongate member cooperate to absorb inflation forces from the dilator directed toward the longitudinal axis of the elongate member, such that the dilation forces are exerted against tissue asymmetrically relative to the longitudinal axis of the elongate member. The dilation apparatus may be used to dilate the ethmoid infundibulum in a human patient. Various devices may be used to maintain the dilated state of an ethmoid infundibulum, including a wedge, a mesh, and a tether. An illuminator may be configured to reach around an uncinate process, retract the uncinate process, and then illuminate the ethmoid infundibulum to provide improved visualization of the ethmoid infundibulum.

First claim

We claim:

1. A method of maintaining dilation of the ethmoid infundibulum in a human patient, the method comprising:
(a) dilating the ethmoid infundibulum in a human patient, wherein the act of dilating the ethmoid infundibulum comprises:
(i) positioning an inflatable dilator within the ethmoid infundibulum,
(ii) asymmetrically inflating the dilator out from the longitudinal axis of the dilator within the ethmoid infundibulum;
wherein the act of asymmetrically inflating the dilator within the ethmoid infundibulum results in movement of the uncinate process thereby creating a dilated ethmoid infundibulum; and

(b) installing a support member to maintain dilation of the dilated ethmoid infundibulum towards the uncinated process.

2. The method of claim 1 , wherein the support member comprises a wedge with one or more anchors, wherein the act of installing the support member comprises securing the one or more anchors in one or more of the ethmoid bulla, the uncinate process, or the middle turbinate.

3. The method of claim 1 , wherein the support member comprises an expandable mesh member configured to maintain an expanded configuration, wherein the act of installing the support member comprises expanding the mesh within at least a portion of the ethmoid infundibulum.

4. The method of claim 1 , wherein the support member comprises a tether, wherein the act of installing the support member comprises:
(i) securing one portion of the tether to an inferior side of the uncinate process, and
(ii) securing another portion of the tether to a medial side of a lateral wall adjacent to the uncinate process.

5. A method of maintaining dilation of the ethmoid infundibulum in a human patient, the method comprising:
(a) dilating the ethmoid infundibulum in a human patient, wherein the act of dilating the ethmoid infundibulum comprises:
(i) positioning an inflatable dilator within the ethmoid infundibulum,
(ii) asymmetrically inflating the dilator out from the longitudinal axis of the dilator within the ethmoid infundibulum towards the uncinated process;

wherein the act of asymmetrically inflating the dilator within the ethmoid infundibulum results in movement of the uncinate process thereby creating a dilated ethmoid infundibulum; and
(b) installing a support member to maintain dilation of the dilated ethmoid infundibulum;
wherein the support member comprises a wedge consisting essentially of a pair of legs and a vertex, each leg having an anchor and being joined together at the vertex.

6. A method of maintaining dilation of the ethmoid infundibulum in a human patient, the method comprising:
(a) dilating the ethmoid infundibulum in a human patient, wherein the act of dilating the ethmoid infundibulum comprises:
(i) positioning an inflatable dilator within the ethmoid infundibulum, and (ii) asymmetrically inflating the dilator out from the longitudinal axis of the dilator within the ethmoid infundibulum towards the uncinated process;
wherein the act of asymmetrically inflating the dilator within the ethmoid infundibulum results in movement of the uncinate process, thereby creating a dilated ethmoid infundibulum; and

(b) installing a support member to maintain dilation of the dilated ethmoid infundibulum;
wherein the support member comprises a wedge comprising a pair of legs joined at a vertex, and further wherein one leg is secured in the ethmoid bulla and the other leg is secured in the uncinate process.

Assignees

• Acclarent Inc

Inventors

• Kesten Randy J
• Harfe Daniel T
• Goldfarb Eric

Classifications

• A61F2/186

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• A61B2017/246

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• A61B17/24

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• A61B2090/309

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