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Devices and methods for transnasal irrigation or suctioning of the sinuses

a technology of transnasal irrigation and sinuses, applied in the field of medical devices, can solve the problems of sinus cavity tissue swelling, sinus cavity mucus collection, and sinus cavity infection, and achieve irreparable damage to tissues and/or bony structures of the paranasal anatomy

Inactive Publication Date: 2013-07-18
ACCLARENT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is an irrigation catheter for the treatment of a sinus that has an irrigation lumen and a proximal portion, a rigid middle portion, and a flexible distal portion with an irrigation tip. The flexible distal portion has an actuator and may contain a stiffening member. The catheter has a stiffness that is intermediate the stiffness of the rigid middle portion and the flexible distal portion. The invention also includes a system for treatment of a target space in the nasal anatomy with a handle, a guide catheter for attachment to the handle, and an irrigation catheter with an outer diameter that is smaller than the inner diameter of the guide catheter. The irrigation catheter has an irrigation lumen and a flexible distal portion with an irrigation tip. The technical effects of the invention include improved irrigation of the sinus with reduced risk of complications, improved visualization, and the ability to deliver a fluid to the target space at a controlled flow rate.

Problems solved by technology

Acute sinusitis can be associated with upper respiratory infections or allergic conditions, which may cause tissue swelling and temporarily impede normal trans-ostial drainage and ventilation of the sinuses, thereby resulting in some collection of mucus and possibly infection within the sinus cavities.
Chronic sinusitis, if left untreated, can result in irreparable damage to the tissues and / or bony structures of the paranasal anatomy.

Method used

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  • Devices and methods for transnasal irrigation or suctioning of the sinuses
  • Devices and methods for transnasal irrigation or suctioning of the sinuses
  • Devices and methods for transnasal irrigation or suctioning of the sinuses

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Embodiment Construction

[0036]The following detailed description should be read with reference to the drawings, in which like elements in different drawings are identically numbered. The drawings, which are not necessarily to scale, depict exemplary embodiments for the purpose of explanation only and are not intended to limit the scope of the invention. The detailed description illustrates by way of example, not by way of limitation, the principles of the invention. This description will clearly enable one skilled in the art to make and use the invention, and describes several embodiments, adaptations, variations, alternatives and uses of the invention, including what is presently believed to be the best mode of carrying out the invention.

[0037]As used herein, the terms “about” or “approximately” for any numerical values or ranges indicate a suitable dimensional tolerance that allows the part or collection of components to function for its intended purpose as described herein.

[0038]Medical devices accordin...

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Abstract

An irrigation catheter for the treatment of the sinus anatomy is described. The catheter comprises a proximal portion, a rigid middle portion, and a flexible distal portion. The flexible distal portion comprises an irrigation tip and the proximal portion has a stiffness that is intermediate the stiffness of the rigid middle portion and the flexible distal portion. The irrigation tip has a tip opening and one or more radially facing openings. A method for irrigating or suctioning the sinus anatomy includes inserting an irrigation catheter into a patient's anatomy and irrigating or suctioning a target space.

Description

FIELD OF THE INVENTION[0001]The present invention relates, in general, to medical devices and, in particular, to medical devices and related methods for the treatment of sinus conditions.BACKGROUND OF THE INVENTION[0002]The paranasal sinuses are hollow cavities in the skull connected by small openings, known as ostia, to the nasal canal. Each ostium between a paranasal sinus and the nasal cavity is formed by a bone covered by a layer of mucosal tissue. Normally, air passes into and out of the paranasal sinuses through the ostia. Also, mucus is continually formed by the mucosal lining of the sinuses and drains through the ostia and into the nasal canal.[0003]Sinusitis is a general term that refers to inflammation in one or more of the paranasal sinuses. Acute sinusitis can be associated with upper respiratory infections or allergic conditions, which may cause tissue swelling and temporarily impede normal trans-ostial drainage and ventilation of the sinuses, thereby resulting in some ...

Claims

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Application Information

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IPC IPC(8): A61M3/02
CPCA61B17/24A61M3/0279A61M25/0054A61M1/85A61M1/774
Inventor NEWHAUSER, JR., RICHARD R.GOLDFARB, ERIC A.WHITE, JOHN W.LIN, ARTHUR M.
Owner ACCLARENT INC
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