System for treating target tissue within the eustachian tube

A technology of eustachian tube and catheter, applied in the field of system for processing target tissue in eustachian tube, capable of solving the problems of small damage risk of ear tissue

Inactive Publication Date: 2012-10-17
ACCLARENT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ideally, such methods and systems would be minimally invasive and pose very little risk of damage to healthy ear tissue

Method used

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  • System for treating target tissue within the eustachian tube
  • System for treating target tissue within the eustachian tube
  • System for treating target tissue within the eustachian tube

Examples

Experimental program
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Effect test

Embodiment Construction

[0138] Embodiments of the present invention relate to methods and systems for accessing, diagnosing and treating target tissue regions within the middle ear and Eustachian tube.

[0139] path

[0140] One embodiment of the invention involves obtaining transeustachian access to the middle ear using minimally invasive techniques. In one embodiment, the middle ear space is accessible via the Eustachian tube (ET). To obtain this access to the ostium of the Eustachian tube, a guiding catheter can be used that has a bend at its distal tip that is greater than about 30 degrees and less than about 90 degrees. Once access is obtained, diagnostic or interventional devices can be introduced into the Eustachian tube. Optionally, a safety mechanism may be employed to prevent damage to delicate middle ear structures. In one embodiment, the safety mechanism may include probes and / or sensors introduced into the middle ear via the tympanic membrane, such as Figure 7 shown. For example, t...

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Abstract

Systems for accessing a Eustachian tube (26) of a patient are disclosed. The system includes a guide (1600) configured for passing into a nasal passage of the patient to position a distal tip (1602) of the catheter at or near a Eustachian tube, the guide having a distal tip with a bend having an angle between 30 and 90 degrees; and a guidewire (1604) configured to pass through the guide into the Eustachian tube. A device (1606) for providing therapy to the Eustachian tube is passed through the guide.

Description

[0001] Cross references to related patent applications [0002] This patent application is a continuation-in-part of U.S. Patent Application No. 12 / 340,226 filed December 19, 2008, which requires U.S. Provisional Patent Application No. 12 / 340,226 filed December 20, 2007. 61 / 015,647, the disclosures of both applications are incorporated herein by reference in their entirety for all purposes. Background technique [0003] The present invention relates to methods and systems for accessing, diagnosing and treating target tissue regions within the middle ear and Eustachian tube. [0004] see Figure 1-2 , the ear 10 is divided into three parts: the outer ear 12 , the middle ear 14 and the inner ear 16 . The outer ear 12 is made up of the pinna 18 and the ear canal 20 , which collect and direct sound toward an eardrum 22 (also referred to as the eardrum) at the inner end 24 of the ear canal 20 . Middle ear 14 is located between outer ear 12 and inner ear 16, and is connected to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/00A61M25/06A61M25/10A61M29/00A61M25/09A61B1/00A61F2/84A61B17/3207A61K31/00A61L29/00A61B18/00
CPCA61M2025/1054A61M25/007A61M25/0068A61M2025/0039A61B17/24A61F11/004A61M29/02A61M25/10A61M31/002A61B8/12A61M25/0662A61B18/20A61M2025/0037A61B1/233A61M2025/09183A61M25/09A61M25/0041A61M25/1002A61B1/227A61M2025/1086A61M25/008A61B5/036A61B5/415A61N7/02A61M2025/105A61M2025/09008A61M25/0054A61B18/08A61F11/20A61F11/202A61M25/0067A61F11/00
Inventor A·G·克利福德J·马考尔J·Y·常J·H·莫里斯E·A·布赖特E·戈德法布J·D·弗拉尼
Owner ACCLARENT INC
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