Subdermal cryogenic remodeling of muscles, nerves, connective tissue, and/or adipose tissue (fat)
View Patent ↗Devices, systems, and methods treat cosmetic defects, and often apply cooling with at least one tissue-penetrating probe inserted through of the skin of a patient. The cooling may remodel one or more target tissue so as to effect a desired change in a composition of the target tissue and/or a change in its behavior. Exemplary embodiments of the cooling treatments will interfere with the nerve/muscle contractile function chain so as to mitigate wrinkles of the skin. Related treatments may be used therapeutically for treatment of back and other muscle spasms, chronic pain, and the like. Some embodiments may remodel subcutaneous adipose tissue so as to alter a shape or appearance of the skin surface.
1. A method for cryogenically treating tissue in a patient, said method comprising:
providing a cryogenic device, the cryogenic device comprising a tissue penetrating needle probe, the tissue penetrating needle probe comprises an array of needles;
advancing the tissue penetrating needle probe through a skin surface into target tissue disposed therebelow, the target tissue having an associated nerve/muscle contractile chain comprising a muscle, a nerve, a connective tissue, and a nerve/muscle junction;
cooling the target tissue with the tissue penetrating needle probe; protecting the skin surface from a cooling induced injury; and
temporarily interfering with the function of the nerve/muscle contractile chain so as to achieve a cosmetic result.
2. The method of claim 1 , wherein the array of needles are arranged in a linear configuration or in a multi-dimensional configuration.
3. The method of claim 1 , wherein cooling the target tissue comprises cooling the target tissue to a temperature in a range from about −5° C. to about −50° C.
4. The method of claim 1 , wherein interfering with the function of the contractile chain comprises temporarily inhibiting contraction of the muscle.
5. The method of claim 1 , wherein the therapeutic or cosmetic result comprises alleviating a muscle spasm.
6. The method of claim 1 , wherein the therapeutic or cosmetic result comprises improving an appearance of the patient.
7. The method of claim 6 , wherein improving the appearance of the patient comprises reducing an appearance of lines and wrinkles in a skin surface of the patient.
8. The method of claim 7 , wherein the skin surface comprises the face.
9. The method of claim 1 , wherein interfering with the function of the contractile chain comprises impairing signal transmission therealong.
10. The method of claim 1 , wherein temporarily interfering with the function of the nerve/muscle contractile chain comprises selecting a duration for the interference with the function of the contractile chain following completion of the cryogenic treatment, and wherein characteristics of the cooling are determined in response to the selected duration.
11. The method of claim 1 , wherein protecting the skin comprises applying a bioactive agent or chemical to the target tissue.
12. The method of claim 1 , wherein protecting the skin comprises heating the skin.
13. The method of claim 12 , wherein heating the skin comprises applying energy along the skin surface with an applicator of the cryogenic device, and heating the skin surface with the applicator during the cooling of the target tissue.
14. The method of claim 1 , wherein protecting the skin comprises applying a cooling injury inhibiting material on the skin surface.
15. The method of claim 1 , wherein protecting the skin comprises providing a heated biocompatible fluid or a biocompatible cryoprotectant in thermal communication with the skin.
16. The method of claim 1 , wherein protecting the skin comprises reducing or eliminating alteration of a natural skin color of the patient.
17. The method of claim 1 , wherein protecting the skin comprises introducing an infusion fluid into the target tissue.
18. The method of claim 1 , wherein the cryogenic device comprises a cryogenic fluid supply cartridge, the method further comprising replacing the fluid supply cartridge when the cartridge is substantially empty.