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. An apparatus for remodeling a therapeutic zone within tissue underlying a mucosal epithelium of female genital tissue, the apparatus comprising:
an elongate handle configured to be held;
a treatment tip, the tip comprising:
a shaft comprising a longitudinal axis;
an energy delivery element having an epithelium-contacting surface, the epithelium-contacting surface having a plurality of energy applicator regions; and
an internal cooling chamber configured to internally cool the energy delivery element,
wherein the energy delivery element comprises a thermally-conductive surface that is adapted to allow cooling of the epithelium while transmitting RF energy to heat the target tissue;
a controller configured to determine contact with a target tissue and generate a contact map comprising a graphical map representing relative positions of the plurality of energy applicator regions on the energy delivery element, the graphical map showing contact status of each of the energy applicator regions;
wherein the controller is configured to determine a time since the energy delivery element of the treatment tip was last activated, take a temperature of one or more sites on the treatment tip, and determine if the energy delivery element is 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 indicate if the treatment energy delivery element is in contact with the tissue; and
a display configured to display the contact map.
2. The apparatus of claim 1 , wherein the energy delivery element is configured to be parallel to the longitudinal axis of the shaft.
3. The apparatus of claim 1 , wherein the energy delivery element is configured to have a width of 0.75 cm to 1.25 cm.
4. The apparatus of claim 1 , wherein the energy delivery element is configured to have a length of 1 cm to 3 cm.
5. The apparatus of claim 1 , wherein the energy delivery element is configured to be flat.
6. The apparatus of claim 1 , wherein the internal cooling chamber comprises a plurality of coolant nozzles configured to spray cooling fluid on an internal portion of the energy delivery element further wherein the nozzles project at different angles relative to the energy delivery element.
7. The apparatus of claim 6 , wherein the plurality of coolant nozzles comprises three coolant nozzles.
8. The apparatus of claim 1 , wherein the energy delivery element comprises at least one RF electrode.
9. The apparatus of claim 1 , further comprising at least one temperature sensor located in close proximity to the energy delivery element.
10. The apparatus of claim 1 , further comprising a return coolant pathway extending proximally from the elongate handle configured to channel the used coolant away from a patient.
11. The apparatus of claim 1 , further comprising a flat cable connecting the handle to the controller, the cable including a coolant delivery channel and a coolant return channel, at least one RF power line.
12. The apparatus of claim 1 , wherein the handle does not include a button or switch controlling the application of RF energy.
13. A system for remodeling a therapeutic zone within tissue underlying a mucosal epithelium of female genital tissue, the system comprising:
an elongate handle configured to be held, wherein the handle extends in a longitudinal direction;
a treatment tip, wherein the tip comprising:
a plurality of energy-delivery elements having epithelium-contacting surfaces,
at least one internal cooling chamber configured to internally cool the energy delivery elements, wherein the energy delivery element comprises a thermally-conductive surface that is adapted to allow cooling of the epithelium while transmitting RF energy to heat the target tissue; and
an integrated controller including:
a housing;
an RF generator within the housing;
a cooling sub-system within the housing;
a controller for controlling operation of the treatment tip and determining when the treatment tip is in contact with a target tissue and generating a contact map comprising a graphical map representing the position of the plurality of energy-delivery elements on the treatment tip having epithelium-contacting surfaces, the graphical map showing contact status of each of the energy applicator regions;
wherein the controller is configured to determine a time since at least one of the plurality of energy-delivery elements was last activated, take a temperature of one or more sites on the treatment tip, and determine if the at least one of the plurality of energy-delivery elements 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 activating, and indicate if the at least one of the plurality of energy-delivery elements is in contact with the tissue; and
a display configured to display the contact map.
14. The system of claim 13 , further comprising a flat cable connecting the handle to the integrated controller, the cable including a coolant delivery channel and a coolant return channel, at least one RF power line.
15. The system of claim 13 , further comprising a foot switch configured to connect to the integrated controller and trigger the application of RF energy by the plurality of energy-delivery elements.
16. The system of claim 13 , wherein the display is configured to display control information.
17. The system of claim 13 , wherein the integrated controller is portable.
18. The system of claim 13 , wherein the system weighs less than fifty pounds.