Medical device for treating skin itch and rash

• US 20040127962A1
• Filed: 05/03/2003
• Published: 07/01/2004
• Est. Priority Date: 10/04/1993
• Status: Active Grant

• Current Assignee: Hontech and Tuozhou, LLC
• Original Assignee: Zeno Corporation (LumaTherm, Inc.)
• Inventors: Li, Huan-Chen, Wang, Xiao-Guang
• Granted Patent: US 7,537,605 B2
• Time in Patent Office: Days
• 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. An apparatus for treating skin itch and disease, through the controlled application of heat, comprising:

heating means for applying heat to the skin;

temperature selection means for allowing selection of a heater temperature inside the range of about 46-62 degree Celsius;

power source means to provide enough energy;

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 house.

2. The apparatus according to claim 1 further comprising a control means to regulate the heating means temperature.

3. The apparatus in accordance with claim 2, further comprising signaling means to indicate that the heating means has reached the selected temperature.

4. The apparatus in accordance with claim 3, further comprising means to select one of a multiplicity of temperatures, each such temperature comprising a best effective temperature for a particular treatment, and comprising means to control skin temperature to within one-half degree centigrade after the selected temperature is reached.

5. The apparatus according to claim 1, wherein the heating means further comprises:

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.

6. The apparatus according to claim 5, 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.

7. The apparatus in accordance with claim 6, further comprising signaling means to inform the user that the heating means is at the selected temperature.

8. The apparatus in accordance with claim 7, 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.

9. The apparatus in accordance with claim 8, further comprising a grid at the contact end, said grip 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.

10. The apparatus in accordance with claim 1, further comprising an essentially spherical heat transfer surface filled with liquid of a high specific heat, and wherein the temperature detection means and heating means are located within said liquid.

11. The apparatus in accordance with claim 10, further comprising means to select one of a multiplicity of temperatures, each such temperature comprising a best effective temperature for a particular treatment, and comprising means to control skin temperature to within one-half degree centigrade.

12. The apparatus according to claim 1, wherein the heating means further comprises an heat source recessed within said contact end, wherein the contact end is enclosed by a grip having a multiplicity of apertures allowing heating of the skin by said indirect means, and wherein said temperature detection means are located in proximity to the grid.

13. The apparatus according to claim 12, wherein said selection means provides a periodic heating of the skin, and wherein the selection means provides control of frequency and duty cycle of said heating.

14. A method for treating an itch or rash skin disease, comprising the following steps, in order:

selecting a heater that can provide a desired temperature inside the range of about 46-62 degree Celsius based on the type of a specific treatment;

raising the temperature of the diseased area to the desired temperature to a certain precision;

and maintaining the temperature of the diseased area for a desired time.

15. A apparatus for treating an itch or rash skin disease, through the controlled application of heat, comprising:

heating means providing a temperature inside the range of 46 to 62°

C.;

control means to control the heating means temperature within a range good for a specific skin itch treatment;

power source means to provide enough energy;

a housing comprising a contact end, with the heating means positioned in the contact end, the control means in the house, and the power source means connected to or in the house.