Medical device and method for treating skin disease

• US 7,637,930 B2
• Filed: 04/15/2005
• Issued: 12/29/2009
• Est. Priority Date: 10/04/1993
• Status: Expired due to Fees

• Current Assignee: Hontech and Tuozhou, LLC
• Original Assignee: Zeno Corporation (LumaTherm, Inc.)
• Inventors: Wang, Xiaoguang, Li, Huanchen
• Primary Examiner(s): Nasser; Robert L
• Application Number:
  US11/108,027
• Publication Number:
  US 20050203596A1
• Time in Patent Office: 1,719 Days
• Field of Search: None
• US Class Current: 607/96
• CPC Class Codes: A61F 2007/0078 with a battery
• CPC Class Codes: A61F 2007/0284 Treatment of stings or bites
• CPC Class Codes: A61F 7/007 characterised by electric heating

Abstract

Methods and systems for treating skin disease are disclosed. Heat is applied at a controlled temperature, for a predetermined period of time, to a skin lesion associated with a skin disease according to embodiments. The temperature used, according to embodiments, is in a range between about 46-62° C., and controlled within a narrow tolerance depending upon the nature of the skin treatment.

Claims

1. A method comprising:

applying heat energy to skin affected by a specific skin condition via conduction of the heat energy from a heat application surface of a device, the heat application surface contacting the skin and being elevated to a selected temperature in a range of 46 to 62°

C. or a range of 50 to 69°

C. to treat the specific skin condition; and

raising the temperature of the skin to clear up the skin condition.

2. The method of claim 1, further comprising maintaining the heat application surface at the selected temperature within a tolerance.

3. The method of claim 2, wherein the tolerance depends on the specific skin condition, and is selected from a group of tolerances consisting of +/−

0.25°

C., 0.5°

C., 1°

C., and 2°

C.

4. The method of claim 2, wherein the tolerance is selected to prevent side effects.

5. The method of claim 4, wherein the side effects comprise edema, and rebound itch.

6. The method of claim 1, wherein the selected temperature is in a range of 46 to 62 degrees C.

7. The method of claim 6, wherein the selected temperature is about 50°

C.

8. The method of claim 1, wherein the specific skin condition is acne.

9. The method of claim 1, wherein the specific skin condition is one or more of systemic skin itch, rash, eczema, psoriasis, hives, poison ivy, poison oak, dermatitis, and herpes.

10. The method of claim 1, further comprising indicating operational information visually and aurally.

11. The method of claim 10, wherein the operational information comprises system and temperature information.

12. The method of claim 1, wherein heat is applied to the skin in one or more pulses by controlling a supply of power to a heater in the device.

13. The method of claim 1, wherein heat is applied to the skin in one or more pulses.

14. A method comprising:

heating a skin area that has a skin condition using a heating device configured to heat the skin area to a predetermined temperature selected for treatment of the skin condition, the heating device comprising a heat application surface that is placed in contact with the skin and that conducts heat energy to the skin;

allowing the skin area to cool by decreasing the temperature of the heat application surface; and

repeating the heating and cooling for a period of time as required to treat the skin condition.

15. The method of claim 14, wherein the skin area is heated and allowed to cool by a pulsating application of heat from the device.

16. The method of claim 14, wherein the skin condition is selected from acne, rash, eczema, psoriasis, hives, poison ivy, poison oak, dermatitis, herpes, and systemic skin itching.

17. The method of claim 14, wherein the heat application surface is configured for a treatment option for a specific skin condition, an area of the body to be treated, and/or a patient type to be treated.

18. A method comprising:

choosing a treatment setting from a plurality of discrete treatment settings using a selector on a skin heating apparatus, the plurality of discrete treatment settings each provided to accommodate at least one of a specific skin condition, an area of a body to be treated, and a type of patient to be treated;

applying a heat application surface of the skin heating apparatus to a skin area having a specific skin problem, the heat application surface being heated to a treatment temperature corresponding to the chosen treatment setting by a heating element controlled by a control system, the treatment temperatures corresponding to the discrete treatment settings being in a range of 49 to 69°

C.; and

introducing a therapeutically effective quantity of heat energy via the heat application surface to the skin area from the heat application surface having been heated to the treatment temperature of the chosen treatment temperature setting, such that the specific skin problem is effectively treated by the heat energy introduced by the heat application surface.