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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0437306 (1999-11-09) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 436 인용 특허 : 110 |
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 (in
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 at a surface of a nasal concha, an expandable member positioned adjacent the catheter distal portion, an energy delivery device for delivering ablative energy positioned adjacent the catheter distal portion, and a lumen coupled to the catheter for delivering a medium into the expandable member to expand the expandable member.
1. A method for ablating at least a portion of a nasal concha comprising: introducing a distal portion of a catheter through a nostril and a nasal passageway, wherein the distal portion of the catheter includes at least a first RF electrode; positioning the distal portion of the catheter adjacen
1. A method for ablating at least a portion of a nasal concha comprising: introducing a distal portion of a catheter through a nostril and a nasal passageway, wherein the distal portion of the catheter includes at least a first RF electrode; positioning the distal portion of the catheter adjacent to a portion of the nasal concha; controllably delivering energy from the at least a first RF electrode to the nasal concha; and creating a sufficient ablation zone so as to reduce the size of the nasal concha. 2. The method of claim 1, wherein the distal portion includes at least a second RF electrode, and the at least first and second RF electrodes are bi-polar electrodes. 3. The method of claim 2, further comprising: introducing an electrolytic solution to the at least the first RF electrode. 4. The method of claim 1, further comprising: maneuvering the distal portion of the catheter as it is introduced through the nasal passageway to a position the distal portion adjacent to the inferior nasal concha. 5. The method of claim 1, wherein the distal portion of the catheter is dimensioned to be positioned into a nasal meatus adjacent a surface of a nasal concha. 6. The method of claim 1, wherein the size of the ablation zone is sufficient to improve air flow through a nasal meatus. 7. The method of claim 1, wherein the at least one RF electrode delivers energy at a frequency between about 300 megahertz and about 700 megahertz. 8. The method of claim 1, wherein the at least one RF electrode delivers about 5 to 30 watts of RF energy to at least a portion of the nasal concha. 9. The method of claim 1, wherein the size of the ablation zone is sufficient to increase a rate of airflow through a nasal meatus by at least 25%. 10. The method of claim 1, further comprising: monitoring the delivery of energy from the at least one RF electrode through the surface of the nasal concha to the nasal concha.
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