Devices to treat nasal airways
A device is described for treating a nasal airway by modifying a property of a nasal tissue of or near a nasal valve of the airway, without using a surgical incision or an implant, to decrease airflow resistance or perceived airflow resistance in the nasal airway. Various embodiments include an elongate shaft, a bipolar radiofrequency delivery member extending from one end of the shaft, and a handle attached to the elongate shaft at an opposite end from the radiofrequency delivery member. The radiofrequency delivery member is sized to be inserted into a nose and configured to at least temporarily deform the nasal tissue and deliver radiofrequency energy.
1. A device for treating a nasal airway by modifying a property of a nasal tissue of or near a nasal valve of the airway, without using a surgical incision or an implant, to decrease airflow resistance or perceived airflow resistance in the nasal airway, the device comprising:
a handle;
an elongate shaft extending from a first end of the handle; and
a treatment element extending from a second end of the elongate shaft that is opposite the first end, wherein the treatment element is sized to be inserted into a nostril and configured to at least temporarily deform the nasal tissue and deliver radiofrequency energy to modify the property of the nasal tissue, and wherein the treatment element comprises:
a front, tissue contact surface having a convex shape configured to at least temporarily deform the nasal tissue into a concave shape;
a back surface; and
a monopolar radiofrequency electrode disposed on the tissue contact surface of the treatment element.
2. A device as in claim 1 , wherein the monopolar radiofrequency electrode is a needle electrode.
3. A device as in claim 1 , wherein the monopolar radiofrequency electrode is a protruding, non-penetrating electrode.
4. A device as in claim 1 , further comprising a grounding pad for attaching to a patient during a procedure.
5. A device as in claim 1 , wherein the treatment element has a width that is larger than a width of the elongate shaft.
6. A device as in claim 5 , wherein the treatment element has a length that is parallel to a longitudinal axis of the shaft.
7. A device as in claim 1 , further comprising at least one heat sensor disposed on the tissue contact surface.
8. A device as in claim 7 , wherein the at least one heat sensor comprises a thermocouple that protrudes from the tissue contact surface of the treatment element.
9. A device as in claim 7 , wherein the at least one heat sensor comprises multiple heat sensors disposed along the tissue contact surface.
10. A device as in claim 9 , wherein the multiple heat sensors comprise a first heat sensor configured to sense a first temperature of a first region of the tissue and a second heat sensor configured to sense a second temperature of a second region of the tissue, the second region being a more interior section of the tissue than the first region.
11. A device as in claim 1 , wherein the monopolar electrode comprises multiple monopolar electrode needles disposed in an array on the tissue contact surface.
12. A device as in claim 1 , wherein the monopolar electrode comprises an electrode plate.
13. A device as in claim 1 , further comprising an external mold attached to the handle via a second shaft, wherein the external mold is configured to apply pressure to an external surface of a nose to help the treatment element deform the nasal tissue.
14. A device as in claim 1 , further comprising a second shaft coupled with the handle for applying force to a portion of the nasal airway to help press the treatment element into the nasal tissue to be deformed.
15. A device as in claim 1 , further comprising a second shaft and a second treatment element, wherein the treatment element and the second treatment element are configured to treat two areas of nasal tissue at the same time.
16. A device as in claim 1 , further comprising a tissue cooling member coupled with the tissue contact surface near the monopolar radiofrequency electrode.