Apparatus and method for acoustic/mechanical treatment of early stage acne

• US 8,740,917 B2
• Filed: 12/21/2007
• Issued: 06/03/2014
• Est. Priority Date: 01/15/2003
• Status: Active Grant

• Current Assignee: L'Oreal SA
• Original Assignee: L'Oreal SA
• Inventors: Giuliani, David, Meginniss, Stephen M., Pilcher, Kenneth E.
• Primary Examiner(s): Nguyen, Victor
• Application Number:
  US11/963,616
• Publication Number:
  US 20080097355A1
• Time in Patent Office: 2,356 Days
• Field of Search: 606/131, 606/133, 604/289, 604/290, 604/313, 132/200, 132/289, 132/290, 15/28
• US Class Current: 606/131
• CPC Class Codes: A61B 17/54 Chiropodists' instruments , e.g. pedicure chiropractic devices A61H1/008
• CPC Class Codes: A61B 2017/00747 Dermatology
• CPC Class Codes: A61B 2017/320012 Brushes

Abstract

The apparatus includes at least two skin-contacting elements, the elements having narrow end faces and a mounting assembly for holding the elements closely adjacent to each other. A driving assembly reciprocally moves one element relative to the adjacent element(s) at a frequency that produces an action on the pores of the skin to loosen sebaceous plugs present in the pores, by permitting their ready removal from the skin.

Claims

1. A method for cleansing of skin, comprising the steps of:

a first step of deforming the skin from a neutral position to a first deformed position at which point the skin is within its elastic limit;

a second step permitting the skin to return to said neutral position; and

repeating the first and second steps within a frequency range of 20 Hz to 1 KHz, to produce an action on the skin which results in the cleansing of the skin, wherein the step of deforming the skin is accomplished by bristles arranged into a plurality of bristle tufts, and wherein the peak amplitude of motion at the base of one bristle tuft with respect to that of an adjacent bristle tuft is in the range of 10%-125% of the center-to-center distance between adjacent bristle tufts moving with respect to each other.

2. The method of claim 1, wherein the cleansing of the skin includes removal of undesired material from skin pores, the undesired material being a sebum plug.

3. The method of claim 1, wherein the frequency range is 80-200 Hz.

4. The method of claim 1, including a third step of stretching the skin to a second deformed position in a direction opposite to that in the first step, and a fourth step of permitting the skin to return to said neutral position, the third and fourth steps being accomplished prior to the step of repeating.

5. The method of claim 4, wherein the steps of deforming are accomplished by positively moving the skin.

6. The method of claim 1, wherein the deformation of the skin is accomplished by a strain action.

7. The method of claim 1, wherein the deformation of the skin is accomplished by a tension/compression action.

8. The method of claim 1, including a step of applying a fluid to the skin to assist in the cleansing thereof.

9. The method of claim 1, wherein the steps of the method are carried out for predetermined times for specific skin areas on the face of a user.

10. The method of claim 1, wherein the bristle tufts have a reciprocally arcuate movement.

11. The method of claim 1, wherein the bristle tufts have a reciprocally linear movement.

12. A method for cleansing of skin, comprising the steps of:

repetitively deforming skin in one direction to a first position and then in another direction to a second position, wherein the skin returns to a neutral position between the first and second positions, wherein the step of deforming the skin is accomplished by bristles arranged into a plurality of bristle tufts, and wherein the peak amplitude of motion at the base of one bristle tuft with respect to that of an adjacent bristle tuft is in the range of 10%-125% of the center-to-center distance between adjacent bristle tufts moving with respect to each other, to produce an action on the skin which results in cleansing of the skin.

13. The method of claim 12, wherein the skin is deformed to within its elastic limit at the first and second positions.

14. The method of claim 12, wherein the first and second positions approximately oppose each other.

15. The method of claim 12, wherein the step of deforming the skin is accomplished at a frequency in the range of 20 Hz to 1 KHz.

16. The method of claim 15, wherein the frequency range is 80-200 Hz.

17. The method of claim 12, wherein the cleansing of skin includes removal of undesired material from skin pores, including sebum plugs.

18. The method of claim 12, wherein the step of deforming the skin is accomplished by a strain action.

19. The method of claim 12, wherein the step of deforming the skin is accomplished by a tension/compression action.

20. The method of claim 12, including the step of applying fluid to the skin to assist in the cleansing thereof.

21. The method of claim 12, wherein the steps of the method are carried out for predetermined times for specific skin areas on the face of a user.

22. The method of claim 12, wherein the step of deforming the skin is accomplished by a brush member, comprising circular rows of bristle tufts, wherein the bristle tufts move in a reciprocally arcuate manner.

23. The method of claim 12, wherein the step of deforming the skin is accomplished by a brush member, comprising straight rows of bristle tufts, wherein the bristle tufts move in a reciprocally linear manner.

24. The method of claim 12, wherein the step of deforming is accomplished by positively moving the skin in said one direction and then in said another direction.