Devices and methods for treating maxillary sinus disease

Patent metadata

Field	Value
Publication number	US-9351750-B2
Application number	US-63991909-A
Country	US
Kind code	B2
Filing date	Dec 16, 2009
Priority date	Apr 21, 2004
Publication date	May 31, 2016
Grant date	May 31, 2016

Abstract

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.

First claim

What is claimed is:

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.

2. A system for treating a disorder of a maxillary sinus, the system comprising:
(a) a sinus spacer device insertable into a paranasal ostium, comprising:
(i) an elongate shaft having a lumen, a proximal end and a distal end,
(ii) an expandable reservoir 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, and
(iii) a collapsible retention structure biased to expand from a collapsed orientation to an expanded orientation to thereby prevent slipping of the reservoir outwardly from a paranasal ostium, wherein the collapsible retention structure comprises a proximal end and a distal end, wherein the distal end of the collapsible retention structure is configured to deflect outwardly away from the elongate shaft to thereby prevent slipping of the reservoir from the paranasal ostium, wherein the proximal end of the collapsible retention structure is configured to remain in contact with the elongate shaft as the distal end of the collapsible retention structure deflects outwardly; and

(b) a tubular delivery guide having a lumen through which the spacer device is insertable, wherein the tubular delivery guide is configured to constrain the collapsible retention structure in the collapsed orientation as the sinus spacer device is inserted into a paranasal ostium.

3. A system for treating a disorder of a maxillary sinus, the system comprising:
(a) a sinus spacer device, comprising:
(i) an elongate shaft having a lumen, a proximal end and a distal end, wherein the elongate shaft comprises a valve member,
(ii) an expandable reservoir 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 the expandable reservoir is positioned about the elongate shaft such that the valve member of the elongate shaft is disposed within the expandable reservoir, wherein the valve member is configured to regulate the flow of the substance into the expandable reservoir, and
(iii) a collapsible retention structure insertable into a paranasal sinus between the expandable reservoir and a paranasal ostium, wherein the collapsible retention structure is biased to expand from a collapsed orientation to an expanded orientation to thereby prevent slipping of the reservoir outwardly from a paranasal ostium; and

(b) an elongate shaft having a lumen through which the spacer device is insertable.

Assignees

• Muni Ketan P
• Ha Hung V
• Chan Randy S
• Harfe Daniel T
• Levine Howard
• Acclarent Inc

Inventors

• Muni Ketan P
• Ha Hung V
• Chan Randy S
• Harfe Daniel T
• Levine Howard

Classifications

• A61B17/24 Primary

  for use in the oral cavity, larynx, bronchial passages or nose (for medical inspection of cavities or tubes in the body A61B1/00); Tongue scrapers · CPC title

• A61M25/04

  in the body, e.g. expansible {(A61M25/10, A61M16/0488 take precedence)} · CPC title

• A61M27/00

  Drainage appliance for wounds or the like {, i.e. wound drains, implanted drains} ({negative pressure wound therapy devices A61M1/90;} implements for holding wound open A61B17/02 {; middle ear drainage A61F11/202}) · CPC title

• A61M25/10

  Balloon catheters ({A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02;} inflatable balloons for placing stents or stent-grafts A61F2/958 {; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00}) · CPC title

• A61M2025/0681

  Systems with catheter and outer tubing, e.g. sheath, sleeve or guide tube · CPC title