EUSTACHIAN TUBE TREATMENT SYSTEMS

• US 20080154343A1
• Filed: 09/28/2007
• Published: 06/26/2008
• Est. Priority Date: 12/21/2006
• Status: Abandoned Application

• Current Assignee: George Y. Choi
• Original Assignee: George Y. Choi
• Inventors: LI, Kasey K., CHOI, George Y.
• Application Number:
  US11/864,741
• Publication Number:
  US 20080154343A1
• Time in Patent Office: Days
• US Class Current: 607/89
• CPC Class Codes: A61B 17/2202 the ultrasound transducer being inside patient's body at the distal end of the catheter
• CPC Class Codes: A61B 18/22 the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
• CPC Class Codes: A61B 2017/00787 Surgery of the ear
• CPC Class Codes: A61B 2018/1425 Needle
• CPC Class Codes: A61B 2018/2211 Plurality of fibres

Abstract

Eustachian tube treatment systems are described herein. One method for reducing or removing any obstructions within the Eustachian tube is to apply laser energy to the underlying tissue. One instrument may be used to deliver laser energy and to optionally provide an infusion or injection of a fluid directly into the tissue as well as optionally provide for ultrasound energy application as well. One or more optical fibers which may extend through needles inserted into the tissue may be utilized to deliver the laser energy.

Claims

1. A method of treating tissue in or around a Eustachian tube of a patient body via laser energy, comprising:

positioning an elongate shaft having a distal end against a tissue region of interest in or around the Eustachian tube;

piercing the tissue region via at least one needle retractably disposed near or at the distal end;

advancing at least one optical fiber terminal end into the tissue region within or along the at least one needle; and

applying laser energy via the at least one optical fiber to the tissue region.

3. The method of claim 1 wherein positioning comprises advancing the elongate shaft through a mouth of a patient and into or against a nasopharyngeal opening.

4. The method of claim 1 wherein positioning comprises advancing the elongate shaft through an ear canal of a patient and into the Eustachian tube.

5. The method of claim 1 wherein piercing comprises piercing the tissue region via a plurality of needles.

6. The method of claim 1 wherein piercing further comprises advancing the at least one needle from within the elongate shaft to project externally of a surface of the elongate shaft.

7. The method of claim 1 further comprising infusing or injecting a fluid through the at least one needle into the tissue region prior to applying laser energy.

8. The method of claim 7 wherein infusing or injecting comprises infusing or injecting a fluid selected from the group consisting of anesthetics, analgesics, anti-inflammatory drugs, anti-histamines, non-steroidial drugs, steroidal drugs, anti-bacterial drugs, water, and saline.

9. The method of claim 1 wherein applying comprises transmitting laser energy via a plurality of optical fiber terminal ends positioned near or at the distal end.

10. The method of claim 1 further comprising applying a cooling fluid onto the surface of the tissue region.

11. The method of claim 1 further comprising applying ultrasound energy to the tissue region via one or more ultrasound transducers positioned near or at the elongate shaft distal end.

12. The method of claim 1 further comprising deploying an expandable stent into or against the tissue region within the Eustachian tube.

13. The method of claim 1 further comprising applying RF energy to the tissue region.

2. The method of claim r wherein positioning comprises advancing the elongate shaft through a nostril of a patient and into or against a nasopharyngeal opening.

14. A Eustachian tube treatment system, comprising:

an outer sheath sized for advancement within the Eustachian tube and defining at least an instrument lumen and a stent lumen;

an elongate shaft having a distal end, a proximal end, and a length therebetween positionable within the instrument lumen;

at least one needle retractably positioned to extend from a surface of the shaft near or at the distal end;

at least one optical fiber positioned within or along the at least one needle such that a distal end of the optical fiber is movable with respect to the shaft; and

an expandable stent removably positioned within the stent lumen.

15. The system of claim 14 wherein the outer sheath is sized for advancement within the Eustachian tube.

16. The system of claim 14 further comprising a laser generator in communication with the at least one optical fiber.

17. The system of claim 14 further comprising at least one ultrasound transducer positioned along the shaft.

18. The system of claim 14 further comprising a fluid reservoir in communication with the at least one needle.

19. The system of claim 14 further comprising an RF energy generator in communication with the at least one needle.