Noninvasive apparatus for ablating turbinates

• US 5,800,429 A
• Filed: 11/19/1996
• Issued: 09/01/1998
• Est. Priority Date: 06/24/1994
• Status: Expired due to Term

• Current Assignee: Gyrus ACMI, Inc. (Olympus Corporation)
• Original Assignee: Somnus Medical Technologies, Inc. (Olympus Corporation)
• Inventors: Edwards, Stuart D.
• Primary Examiner(s): PEFFLEY, MICHAEL F
• Application Number:
  US08/752,076
• Time in Patent Office: 651 Days
• Field of Search: 606/10-15, 606/27-31, 606/41, 606/42, 606/45-50, 607/100-105, 607/156, 604/21, 604/22
• US Class Current: 606/41
• CPC Class Codes: A61B 18/1477 Needle-like probes
• CPC Class Codes: A61B 18/148 having a short, rigid shaft for accessing the inner body transcutaneously, e.g. for neurosurgery or arthroscopy
• CPC Class Codes: A61B 18/1485 having a short rigid shaft for accessing the inner body through natural openings
• CPC Class Codes: A61B 18/1492 having a flexible, catheter-like structure, e.g. for heart ablation A61B18/1477 takes precedence
• CPC Class Codes: A61B 18/18 by applying electromagnetic radiation, e.g. microwaves radiation therapy A61N5/00
• CPC Class Codes: A61B 2017/00084 Temperature
• CPC Class Codes: A61B 2017/00106 ultrasonic
• CPC Class Codes: A61B 2017/4216 Operations on uterus, e.g. endometrium
• CPC Class Codes: A61B 2018/00029 open
• CPC Class Codes: A61B 2018/00065 porous
• CPC Class Codes: A61B 2018/00083 low, i.e. electrically insulating
• CPC Class Codes: A61B 2018/00214 Expandable means emitting energy, e.g. by elements carried thereon
• CPC Class Codes: A61B 2018/0022 Balloons
• CPC Class Codes: A61B 2018/00261 arranged in a line
• CPC Class Codes: A61B 2018/00559 Female reproductive organs
• CPC Class Codes: A61B 2018/00577 Ablation
• CPC Class Codes: A61B 2018/00654 with individual control of each of a plurality of energy emitting elements
• CPC Class Codes: A61B 2018/00666 using a threshold value
• CPC Class Codes: A61B 2018/00678 upper
• CPC Class Codes: A61B 2018/00702 Power or energy
• CPC Class Codes: A61B 2018/00708 : switching the power on or off
• CPC Class Codes: A61B 2018/00761 : Duration
• CPC Class Codes: A61B 2018/00791 : Temperature
• CPC Class Codes: A61B 2018/00827 : Current
• CPC Class Codes: A61B 2018/00869 : Phase
• CPC Class Codes: A61B 2018/00875 : Resistance or impedance
• CPC Class Codes: A61B 2018/00886 : Duration
• CPC Class Codes: A61B 2018/00892 : Voltage
• CPC Class Codes: A61B 2018/00898 : Alarms or notifications created in response to an abnormal condition
• CPC Class Codes: A61B 2018/0091 : Handpieces of the surgical instrument or device
• CPC Class Codes: A61B 2018/00916 : with means for switching or controlling the main function of the instrument or device
• CPC Class Codes: A61B 2018/00982 : combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes
• CPC Class Codes: A61B 2018/046 : in liquid form
• CPC Class Codes: A61B 2018/124 : switching the output to different electrodes, e.g. sequentially
• CPC Class Codes: A61B 2018/1472 : for use with liquid electrolyte, e.g. virtual electrodes
• CPC Class Codes: A61B 2218/002 : Irrigation
• CPC Class Codes: A61M 16/0481 : through the cuff wall
• CPC Class Codes: A61M 2025/1052 : for temporarily occluding a vessel for isolating a sector
• CPC Class Codes: A61M 2025/1086 : having a special balloon surface topography, e.g. pores, protuberances, spikes or grooves
• CPC Class Codes: A61M 25/1002 : characterised by balloon shape A61M25/1006, A61M25/1009 take precedence
• CPC Class Codes: A61N 1/06 : for high-frequency therapy
• CPC Class Codes: A61N 5/04 : Radiators for near-field treatment

Abstract

An apparatus is provided for ablating at least a portion of a nasal concha. By ablating at least a portion of a nasal concha, the size of the nasal concha is reduced. The three nasal concha in the body (inferior, middle and superior nasal concha) form at least a portion of the three nasal meatus (inferior, middle and superior nasal meatus) in the body. By reducing the size of a nasal concha, obstruction of a nasal meatus is reduced or eliminated. As a result, air flow through the nasal meatus is improved. In one embodiment, the apparatus includes a catheter having a distal portion with a dimension configured for positioning the catheter distal portion through a nostril of a patient into a nasal meatus adjacent a surface of a nasal concha and a means at the catheter distal portion for delivering sufficient ablative energy to the nasal concha to ablate at least a portion of the nasal concha through heating without penetrating the surface of the nasal concha with an element of the apparatus.

Claims

1. An apparatus for ablating at least a portion of a nasal concha comprising:

an introducer having a distal portion with a length operable for positioning the introducer distal portion through a nostril of a patient into a nasal meatus adjacent a surface of a nasal concha, the introducer including a longitudinal axis and a side port formed in a side wall of the introducer;

an energy delivery means coupled to the introducer distal portion for delivering sufficient ablative energy to the nasal concha to create an interior ablation section of the nasal concha; and

a nasal concha ablation protection means coupled to the energy delivery means the nasal concha ablation protection means having a large enough protection surface positionable adjacent to an exterior surface of the nasal concha to minimize an ablation of the exterior surface of the nasal concha when energy is delivered to the interior ablation section.

2. The apparatus according to claim 1 wherein the apparatus further includes an insulating means for preventing the delivery of ablative energy to a selected tissue section forming a portion of the nasal meatus.

3. The apparatus according to claim 1 wherein the nasal concha ablation protection means includes an insulating means for preventing the delivery of ablative energy to a selected area of the nasal concha.

4. The apparatus according to claim 1 wherein the energy delivery means delivers electromagnetic energy.

5. The apparatus according to claim 1 wherein the energy delivery means delivers energy selected from the group consisting of RF, microwave, ultrasound, pulsed laser, and diffused laser energy.

6. The apparatus according to claim 1 wherein the energy delivery means delivers RF radiation with a frequency between about 300 megahertz and about 700 megahertz.

7. The apparatus according to claim 1 wherein the energy delivery means delivers sufficient RF radiation to deliver between about 5 and about 30 watts of energy to the portion of the nasal concha being ablated.

8. The apparatus according to claim 1 wherein the energy delivery means delivers ablative energy through the surface of the nasal concha into an interior section of the nasal concha.

9. The apparatus according to claim 1 wherein the energy delivery means delivers ablative energy through the surface of the nasal concha into an interior section of the nasal concha substantially bloodlessly.

10. The apparatus according to claim 1 wherein the energy delivery means delivers ablative energy through the surface of the nasal concha into an interior section of the nasal concha without the formation of an external wound on the surface of the nasal concha.

11. The apparatus according to claim 1 wherein the nasal concha ablation protection means includes a cooling means for cooling at least a portion of the exterior surface of the nasal concha during the delivery of ablative energy.

12. The apparatus according to claim 1 wherein the nasal concha ablation protection means includes an expandable member which conforms to the surface of the nasal concha when expanded.

13. An apparatus for ablating an interior portion of a nasal concha without ablating tissue forming a surface of the nasal concha comprising:

an introducer having a distal portion with a length operable for positioning and maneuvering the introducer distal portion through a nostril of a patient into a nasal meatus adjacent a surface of a nasal concha;

an energy delivery means at the introducer distal portion for delivering sufficient ablative energy to create an internal ablation section of the nasal concha; and

a nasal concha ablation protection means coupled to the energy delivery means, the nasal concha ablation protection means having a large enough protection surface positionable adjacent to an exterior surface of the nasal concha to minimize an ablation of the exterior surface of the nasal concha when energy is delivered to the interior ablation section.

14. The apparatus according to claim 13 wherein the energy delivery means delivers ablative energy to the internal section of the nasal concha without penetrating the surface of the nasal concha with an element of the apparatus.

15. The apparatus according to claim 13 wherein the energy delivery means delivers ablative energy to the internal section of the nasal concha without the formation of a wound on the surface of the nasal concha.

16. The apparatus according to claim 13 wherein the nasal concha ablation protection means includes a cooling means for cooling at least a portion of the exterior surface of the nasal concha during the delivery of ablative energy.

17. The apparatus according to claim 16 wherein the cooling means is adapted to receive a cool medium from a medium source to cool the surface of the nasal concha.

18. The apparatus according to claim 13 wherein the nasal concha ablation protection means includes an expandable member which conforms to the surface of the nasal concha when expanded.

19. The apparatus according to claim 18 wherein the apparatus further includes a cooling means coupled to the expandable member for cooling the surface of the nasal concha during the delivery of ablative energy.

20. The apparatus according to claim 19 wherein the cooling means receives a cool medium from a medium source to cool the surface of the nasal concha.

21. The apparatus according to claim 13 wherein the apparatus includes an insulating means coupled to the energy delivery means for preventing the delivery of ablative energy to a selected tissue area forming a portion of the nasal meatus.

22. The apparatus according to claim 13 wherein the energy delivery means delivers electromagnetic energy.

23. The apparatus according to claim 13 wherein the energy delivery means delivers energy selected from the group consisting of RF, microwave, and ultrasound energy.

24. The apparatus according to claim 13 wherein the energy delivery means delivers RF radiation.

25. The apparatus according to claim 24 wherein the energy delivery means delivers RF radiation with a frequency between about 300 megahertz and about 700 megahertz.

26. The apparatus according to claim 13, wherein the introducer distal portion further includes at least one sensor for measuring a property selected from the group consisting of an amount of energy delivered by the energy delivery device, an amount of heat generated at a location, an amount of impedance generated, and a temperature at a location.

27. The apparatus according to claim 26, wherein the energy delivered to the energy delivery device is controlled by a processor in response to a property measured by the sensor.