Vaginal remodeling device and methods
This invention relates generally to apparatus and methods for tightening tissue of the female genitalia by heating targeted connective tissue with radiant energy, while cooling the mucosal epithelial surface over the target tissue to protect it from the heat. Embodiments include a handle and treatment tip that has both an energy delivery element and a cooling mechanism. The handle may be a two-handed handle allowing control even while rotating and maneuvering the treatment around the genital opening. The apparatus or system may also include an integrated controller, which may confirm tissue contact without applying RF energy, based only on the temperature of the applicator and the time since the last application of energy from the applicator.
1. A method of determining if an energy-delivery element of a treatment tip for an RF energy device is in adequate communication with a tissue to be treated, without determining an electrical impedance from the tissue, the method comprising:
determining the time since the energy-delivery element of the treatment tip was last activated;
taking a temperature of one or more sites on the treatment tip;
determining if the energy-delivery element is in contact with the tissue without applying RF energy to the tissue by comparing the temperature of the one or more sites on the treatment tip to a threshold function for the time since the treatment tip was last activated; and
indicating if the energy-delivery element is in contact with the tissue.
2. The method of claim 1 , wherein the threshold function comprises having a ramping temperature threshold from about 30 to about 180 seconds since the energy-delivery element of the treatment tip was last activated.
3. The method of claim 1 , wherein the ramping temperature threshold ramps from about 18 degrees Celsius to a fixed temperature below body temperature between a finite time range since the energy-delivery element of the treatment tip was last activated.
4. The method of claim 1 , wherein the ramping temperature threshold ramps from about 18 degrees Celsius to about 27 degrees Celsius between a finite time range since the energy-delivery element of the treatment tip was last activated.
5. The method of claim 1 , wherein the threshold function is an arctan function.
6. The method of claim 1 , wherein the threshold function is a step function.
7. The method of claim 1 , wherein the one or more sites comprises one or more corners of the treatment tip.
8. The method of claim 1 , wherein the one or more sites comprises the four corners of the treatment tip.
9. The method of claim 1 , wherein determining if the energy-delivery element is in contact with the tissue comprises determining if at least three of four sites on the treatment tip are in contact with the tissue.
10. The method of claim 1 , wherein determining if the energy-delivery element is in contact with the tissue comprises determining if over half of the one or more sites on the treatment tip are in contact with the tissue.
11. The method of claim 1 , wherein determining if the energy-delivery element is in contact with the tissue comprises determining if a fixed percentage of the sites on the treatment tip is in contact with the tissue.
12. The method of claim 1 , wherein determining if the energy-delivery element is in contact with the tissue comprises assigning weights to the one or more sites on the treatment tip, the weights corresponding to the site's impact on determining contact of the treatment tip.
13. The method of claim 12 , wherein assigning weights comprises more heavily weighting sites arranged to form a continuous line across the tissue than other sites.
14. The method of claim 1 , further comprising allowing treatment to proceed based on a determination of contact between the energy-delivery element and the tissue.
15. The method of claim 1 , further comprising preventing treatment from proceeding based on a determination of insufficient contact between the energy-delivery element and the tissue.