US4979938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of iontophoretically treating acne, furuncles and like skin disorders
Assignee: Iomed LLC
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Filing: 1989-05-11
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Granted: 1990-12-25
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Expires: 2009-05-11
Abstract
Abstract A method is disclosed for treating acne, boils and similar skin disorders which are characterized by closed, blocked channels in the epidermis of the skin. The method comprises applying an applicator electrode on the skin of the person to be treated; providing a relatively small amount of water containing dissolved ions in contact with the applicator electrode and the affected tissue; applying a dispersive electrode on the skin of the person to be treated; applying a voltage differential to the applicator and dispersive electrodes such that the applicator electrode has a negative charge and the dispersive electrode has a positive charge; producing hydroxyl ions at the applicator electrode to develop a strongly alkaline solution therein, and driving the ions down the channels of the affected tissue by iontophoresis; continuing the application of the voltage differential to the applicator and dispersive electrodes for a time sufficient to disrupt the blockage of the channels in the affected tissue and to establish drainage from the channels.
Inventors
- 👤 Robert L. Stephen
- 👤 Tomasz J. Petelenz
- 👤 Stephen C. Jacobsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:47
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/20; A61N1/30
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
200 words
A method for treating acne, furuncles and similar skin disorders which are characterized by blocked channels in the skin, said method comprising providing an iontophoresis device which includes an applicator electrode having a receptacle for receiving and holding an electrolytic water-based solution, a dispersive electrode, and a voltage source for providing a voltage of negative polarity to the applicator electrode and a voltage of positive polarity to the dispersive electrode; supplying an electrolytic, water-based solution to the receptacle of the applicator electrode; placing the applicator electrode and dispersive electrode on the skin of the person to be treated so that the applicator electrode is positioned over the skin affected by the disorder; operating the iontophoresis device so that a negative current is supplied from the voltage source to the applicator electrode and a positive current is supplied from the voltage source to the dispersive electrode to thereby produce hydroxyl ions in the solution which are caused to move into the channels of the skin affected by the disorder; and continuing the operation of the iontophoresis device for a time sufficient to disrupt the blockage of the channels in the skin affected by the disorder and establish drainage from the channels.
Claim 2
Independent Claim
200 words
A method for treating acne, furuncles and similar skin disorders which are characterized by blocked channels in the skin, said method comprising providing an iontophoresis device which includes an applicator electrode having a receptacle for receiving and holding an electrolytic water-based solution, a dispersive electrode, and a voltage source for providing a voltage of negative polarity to the applicator electrode and a voltage of positive polarity to the dispersive electrode; supplying an electrolytic, water-based solution to the receptacle of the applicator electrode; placing the applicator electrode and dispersive electrode on the skin of the person to be treated so that the applicator electrode is positioned over the skin affected by the disorder; operating the iontophoresis device so that a negative current is supplied from the voltage source to the applicator electrode and a positive current is supplied from the voltage source to the dispersive electrode to thereby produce hydroxyl ions in the solution which are caused to move into the channels of the skin affected by the disorder; and continuing the operation of the iontophoresis device for a time sufficient to disrupt the blockage of the channels in the skin affected by the disorder and establish drainage from the channels.
Claim 3
Dependent Claim
40 words
A method in accordance with claim 1 wherein said operating step comprises operating the iontophoresis device at a current level sufficient to render the solution in the applicator electrode alkaline to a pH value of about ten or above units.
Claim 4
Dependent Claim
26 words
A method in accordance with claim 1 wherein said placing step comprises placing the dispersive electrode on the skin in close proximity to the applicator electrode.
Claim 5
Dependent Claim
21 words
A method in accordance with claim 1 wherein said supplying step comprises supplying a solution of hard water containing mineral ions.
Claim 6
Dependent Claim
17 words
A method in accordance with claim 1 wherein said supplying step comprises supplying a dilute saline solution.
Claim 7
Dependent Claim
20 words
A method in accordance with claim 1 wherein said supplying step comprises supplying a solution which includes a cleansing agent.
Claim 8
Dependent Claim
19 words
A method in accordance with claim 1 wherein said supplying step comprises supplying a solution which includes an antibiotic.
Claim 9
Dependent Claim
25 words
A method in accordance with claim 1 wherein said supplying step comprises supplying about three cc of solution to the receptacle of the applicator electrode.
Claim 10
Dependent Claim
26 words
A method in accordance with claim 1 wherein said operating step comprises operating the iontophoresis device for a period of between about 10 and 20 minutes.
Claim 11
Dependent Claim
16 words
A method in accordance with claim 9 wherein the current is about 3 to 4 milliamps.
Claim 12
Dependent Claim
24 words
A method in accordance with claim 1 wherein the current supplied to the applicator and dispersive electrodes is from about 1 to 10 milliamps.
Claim 13
Independent Claim
146 words
A method for treating acne, furuncles and like skin disorders which are characterized by blocked hair follicles in the skin, said method comprising placing an applicator electrode over the skin disorder of the person to be treated, said electrode holding an electrolytic, water-based solution, placing a dispersive electrode against the person's skin in a position spaced from but in close proximity to the position of the applicator electrode, and supplying a negative current to the applicator electrode and a positive current to the dispersive electrode to thereby produce hydroxyl ions in the solution in the applicator electrode which are caused to move into the hair follicles of the skin affected by the disorder, said supplying step continuing for a time sufficient to raise the pH value in the applicator electrode to a value of about 10 or more units and disrupt the blockage of the follicles.
Claim 14
Independent Claim
146 words
A method for treating acne, furuncles and like skin disorders which are characterized by blocked hair follicles in the skin, said method comprising placing an applicator electrode over the skin disorder of the person to be treated, said electrode holding an electrolytic, water-based solution, placing a dispersive electrode against the person's skin in a position spaced from but in close proximity to the position of the applicator electrode, and supplying a negative current to the applicator electrode and a positive current to the dispersive electrode to thereby produce hydroxyl ions in the solution in the applicator electrode which are caused to move into the hair follicles of the skin affected by the disorder, said supplying step continuing for a time sufficient to raise the pH value in the applicator electrode to a value of about 10 or more units and disrupt the blockage of the follicles.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-12-24 | 1994-06-25 | 1994-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-24 | 1998-06-25 | 1998-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-24 | 2002-06-25 | 2002-12-25 | $7700.00 | Window Closed / Lapsed |