Medical device for treating skin itch and rash

• US 7,537,605 B2
• Filed: 05/03/2003
• Issued: 05/26/2009
• Est. Priority Date: 10/04/1993
• Status: Expired due to Fees

• Current Assignee: Hontech and Tuozhou, LLC
• Original Assignee: Zeno Corporation (LumaTherm, Inc.)
• Inventors: Li, Huan-Chen, Wang, Xiao-Guang
• Primary Examiner(s): Nasser; Robert L
• Application Number:
  US10/428,253
• Publication Number:
  US 20040127962A1
• Time in Patent Office: 2,215 Days
• Field of Search: 607 96-101
• 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

An apparatus and method that is effective for the treatment of skin itch and skin rash is disclosed. The apparatus is contained within a body which can be easily manipulated with one hand, and which is powered by a self-contained battery. Also contained within the body is a heating means, controlled by a thermostat, a temperature selector if the heating means if intended to provide multiple temperatures, and means to warn the user when the desired temperature is reached. In addition the apparatus includes means to apply the heat in a cyclical manner, in which the heat is repeatedly applied and removed, with a cycle time and pulse width in which is controlled by user by means of a control located on the body heater and some other elements that can ensure only one substantially unique temperature is used. The method, which is related to the apparatus as its governing principle, includes the application of heat at a precise, controlled temperature, for a specific period of time, t the skin at the location of the itch or rash. The temperature used depends upon the nature of skin discomfort, but is generally inside the range between 46-62° C. The temperature variation is generally controlled within +/−0.5° C. although it can be wider or narrower depends upon the nature of the itch treatment. In addition, the method includes a pulsating application of heat to the skin area, in which the heat is alternately applied and removed at a rate of approximately 1 second, with a total application time of between 10 and 30 seconds.

Claims

1. A system comprising a plurality of apparatuses, each apparatus comprising:

a heater adapted to heat a skin area to thereby treat a specific skin condition afflicting the skin area;

a temperature controller that regulates the heater to a single unalterable temperature upon activation of the apparatus, the single unalterable temperature effectively treating the specific skin condition, the temperature controller maintaining the heater at the single unalterable temperature after the heater reaches the single unalterable temperature which is inside a range of about 46-62°

Celsius, each one of the plurality of apparatuses providing a different single unalterable temperature and being labeled to indicate a treatment option for which the one apparatus is to be used;

a power source providing energy to operate the heater; and

a housing having a contact end, the heater positioned within the contact end, the temperature controller located within the housing, and the power source means connected to or in the housing.

2. The system as in claim 1, wherein each apparatus further comprises signaling means to indicate that the heater has reached the single unalterable temperature.

3. The system as in claim 1, wherein each apparatus further comprises a heater application surface disposed at the contact end for directly contacting a patient'"'"'s skin while being heated by the heater;

and a temperature sensor disposed proximate the skin contact surface to provide feedback to the temperature controller to maintain the heater application surface at the single unalterable temperature within a tolerance of about +/−

1°

Celsius, to effectively treat the skin condition.

4. The system as in claim 1, wherein the specific skin condition comprises a skin itch and disease selected from the group consisting of acne, rash, eczema, psoriasis, dermatitis, allergic skin itching, renal failure skin itching, hepatic skin itching, herpes, and systemic skin itch.

5. The system as in claim 1, wherein the specific skin condition comprises a skin itch and disease selected from the group consisting of hives, poison ivy, poison oak, and insect bites.

6. The system as in claim 1, wherein each apparatus further comprises means to control skin temperature to within a tolerance of about +/−

1°

Celsius after the single unalterable temperature is reached, and for a time sufficient to treat the skin condition.

7. A system as in claim 1, wherein the selected effective temperature of at least one of the apparatuses is within a range of 49 to 53°

C.

8. An apparatus for treating skin itch and disease, through the controlled application of heat, comprising:

a heater for applying heat to skin to treat a specific skin condition;

a temperature controller for regulation of a heater temperature at a temperature selected to effectively treat the specific skin condition;

power source means to provide enough energy to operate the heater; and

a housing having a contact end, the heater positioned within the contact end, the temperature controller located within the housing and the power source means connected to or in the housing,

wherein the heater further comprises a slideably moveable heating surface positioned within the contact end, the heating surface having an extended position in which the heating surface is in contact with the skin of and a retracted position out of contact with the skin, further comprising means to position the surface at either position; and

selection means to control motion of the heating surface.

9. The apparatus as in claim 8, wherein the positioning and selection means provide a periodic motion of the heating surface, and wherein the selection means provides control of a frequency and a duty cycle of the motion of the heating surface.

10. The apparatus as in claim 9, further comprising signaling means to inform a user that the heater is at the selected temperature.

11. The apparatus as in claim 10, further comprising means to select one or more additional temperatures, so that, when cyclical operation is selected, heat will be alternately be applied first at the first selected temperature, then at the second selected temperature, and so on until all the selected temperatures have been applied in sequence, then at first selected temperature, and repeating indefinitely.

12. The apparatus as in claim 11, further comprising a grid at the contact end, said grid having a multiplicity of apertures, whereby the heat transfer surface contains a multiplicity of protrusions which extend through the grid apertures when the surface is in extended position.

13. An apparatus as in claim 8 wherein the temperature selected to effectively treat the specific skin condition is in a range of about 46-62°

Celsius.

14. An apparatus for treating skin itch and disease, through the controlled application of heat, comprising;

a) heating means for applying heat to the skin;

b) temperature selection means for allowing selection of a heater temperature that is effective to treat a specific skin condition;

c) power source means to provide enough energy;

d) a housing having a contact end, the heating means positioned within the contact end, the temperature selection means located within the housing, and the power source means connected to or in the housing; and

e) a slideably moveable heating surface positioned within the contact end, said heating surface having an extended position in which the surface is in contact with the skin of the user and a retracted position out of contact with the skin, further comprising means to position the surface at either position; and

selection means to control said motion, wherein said positioning and selection means provide a periodic motion of the heating surface, and wherein the selection means provides control of frequency and duty cycle of said motion.

15. The apparatus as in claim 14, further comprising signaling means to inform the user that the heating means is at the selected temperature.

16. The apparatus as in claim 15, further comprising means to select one or more additional temperatures, so that when cyclical operation is selected, heat will be alternately be applied first at the first selected temperature, then at the second selected temperature, and so on until all the selected temperatures have been applied in sequence, then at first selected temperature, and repeating indefinitely.

17. The apparatus as in claim 16, further comprising grid at the contact end, said grid having a multiplicity of apertures, whereby the heater application surface contains a multiplicity of protrusions which extend through the grid apertures when the surface is in extended position.

18. An apparatus as in claim 14 wherein the temperature selected to effectively treat the specific skin condition is in a range of about 46-62°

Celsius.

19. A method comprising:

applying a heat application surface of an apparatus to a skin area having a specific skin problem, the apparatus comprising a heating element controlled by a control system that regulates the temperature of the heat application surface to a single unalterable temperature upon activation of the apparatus, the single unalterable temperature effectively treating the specific skin problem, the temperature controller maintaining the heater at the single unalterable temperature after the heater reaches the single unalterable temperature that is in a range of 46°

to 62°

C.; and

introducing a therapeutically effective quantity of heat energy via the heat application surface, such that the skin area in contact with the heat application surface is raised to, and maintained at, a temperature effective to treat the specific skin problem.

20. The method as in claim 19, further comprising monitoring a skin temperature of the skin area and controlling delivery of heat energy to the skin surface to maintain the skin area at the therapeutic temperature.

21. The method as in claim 19, wherein a manifestation of the skin problem includes a skin lesion.

22. The method as in claim 19, further comprising maintaining the skin area at the predetermined temperature within a tolerance of about +/−

one degree Celsius for a period of time sufficient to treat the skin condition.

23. The method as in claim 22, wherein the period of time is greater than 15 seconds.

24. A method as in claim 19 further comprising allowing the skin to cool down to a cooled temperature that is lower than the single unalterable temperature;

and repeating the heating up and cooling down for one or more cycles to treat the skin problem.

25. A method comprising:

applying a heat application surface of an apparatus to a skin area having a specific skin problem, the skin problem being selected from acne, rash, eczema, psoriasis, hives poison ivy, poison oak, dermatitis, herpes, and systemic skin itch, the apparatus comprising a heating element controlled by a control system that regulates the temperature of the heat application surface to a single preset temperature that is in a range of 46°

to 62°

C.; and

introducing a therapeutically effective quantity of heat energy via the heat application surface, such that the skin area in contact with the heat application surface is raised to, and maintained at, a temperature effective to treat the specific skin problem.

26. An apparatus comprising:

a heater adapted to heat a skin surface to thereby treat a skin condition afflicting the surface;

a selector that presents two or more treatment options that can be chosen by a user, the treatment options being selected from a group consisting of a specific skin condition, an area of the body to be treated, and a type of patient to be treated, each treatment option corresponding to a discrete heater temperature that is in a range of 46 to 62°

C.;

a temperature controller in communication with the selector, the temperature controller regulating the heater to the discrete temperature that corresponds to the treatment option chosen by the user;

a power source providing energy to operate the heater; and

a housing having a contact end, the heating means positioned within the contact end, the temperature selection means located within the housing, and the power source means connected to or in the housing.

27. The apparatus as in claim 26, wherein the plurality of discrete temperatures presented by the selector are in a range of 49 to 53°

Celsius.

28. The apparatus as in claim 26, wherein the temperature controller maintains the heater at the chosen temperature that has been selected by the user within a tolerance of about +/−

1°

C. after the chosen temperature is reached.

29. The apparatus as in claim 26, wherein the selector allows selection of two discrete temperatures for the heater, both discrete temperatures being within a range of 49-53°

Celsius, one discrete temperature being appropriate for treatment of children and the other discrete temperature being appropriate for treatment of adults.

30. The apparatus as in claim 26, wherein the heater is adapted to provide sufficient thermal transfer capacity and to provide sufficient thermal contact with the skin, that, from the time that contact is established between the heater at the discrete temperature that corresponds to the chosen treatment option and the skin area, the skin area temperature reaches the discrete temperature that corresponds to the chosen treatment option within about three seconds.

31. A method comprising:

choosing a treatment temperature using a selector on a skin heating apparatus, the treatment temperature being chosen from a plurality of specific temperatures in a range of approximately 46-62°

C. based on one or more criteria selected from a specific skin condition, an area of the 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 the treatment temperature by a heating element controlled by a control system; and

introducing a therapeutically effective quantity of heat energy via the heat application surface, such that the skin area in contact with the heat application surface is raised to, and maintained at, the treatment temperature to treat the specific skin problem.

32. A method comprising:

applying a heat application surface of an apparatus to a skin area having a specific skin problem selected from a group consisting of acne, rash, eczema, psoriasis, hives, poison ivy, poison oak, dermatitis, herpes, and systemic skin itch, the apparatus comprising a heating element controlled by a control system that regulates the temperature of the heat application surface to a single preset temperature; and

introducing a therapeutically effective quantity of heat energy via the heat application surface, such that the skin area in contact with the heat application surface is raised to, and maintained at, a temperature effective to treat the specific skin problem.

33. A method comprising:

applying a heat application surface of an apparatus to a skin area having a specific skin problem, the apparatus comprising a heating element controlled by a control system that regulates the temperature of the heat application surface to a single preset temperature;

introducing a therapeutically effective quantity of heat energy via the heat application surface, such that the skin area in contact with the heat application surface is raised to, and maintained at, a treatment temperature effective to treat the specific skin problem; and

allowing the skin to cool down to a cooled temperature that is lower than the single preset temperature; and

repeating the heating up and cooling down for one or more cycles to treat the skin condition.