# US 9,517,212 B1 · Medicated adhesive pad arrangement

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- Number: US 9,517,212 B1
- Document ID: US9517212B1
- Status: Granted
- Kind: B1
- Application number: 13/694,272
- Filed: 2012-11-15
- Granted: 2016-12-13
- Earliest claimed: 2012-11-15
- Applicants: Chandra Zaveri
- Inventors: Chandra Zaveri
- Web page: https://patentgrep.com/patent/US9517212B1

## CPC

- A61K 47/10: Alcohols; Phenols; Salts thereof, e.g. glycerol; Polyethylene glycols [PEG]; Poloxamers; PEG/POE alkyl ethers
- A61F 13/00063: {comprising medicaments or additives, e.g. odor control, PH control, debriding, antimicrobic (drug delivery dressings A61K9/70; chemical aspect of the additives A61L15/00)}
- A61F 13/025: {having a special distribution arrangement of the adhesive}
- A61K 9/7053: {obtained by reactions only involving carbon to carbon unsaturated bonds, e.g. polyvinyl, polyisobutylene, polystyrene}
- A61K 9/7084: {Transdermal patches having a drug layer or reservoir, and one or more separate drug-free skin-adhesive layers, e.g. between drug reservoir and skin, or surrounding the drug reservoir; Liquid-filled reservoir patches}
- A61K 31/60: Salicylic acid; Derivatives thereof
- A61K 31/765: Polymers containing oxygen
- A61K 31/79: Polymers of vinyl pyrrolidone
- A61K 33/30: Zinc; Compounds thereof
- A61K 47/32: Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. carbomers {, poly(meth)acrylates, or polyvinyl pyrrolidone}
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)

## Abstract

A medicated pad which may be removably placed over a skin disorder such as acne to provide a relatively rapid treatment for relieving such skin disorder and may then be easily removed from the person.

## Claims

### Claim 1

A medicated pad for treatment of preselected skin disorders comprising, in combination:
a base strip, said bases base strip comprising a thin flexible plastic sheet having a first surface and a second surface;
a plurality of medicated pads removably adhesively adhered to said base strip on said first surface thereof in a preselected array, each of said pads having a preselected geometric shape;
each of said medicated pads comprising a multi-layer pad comprising:
a thin, flexible transport plastic sheet having a first surface and a second surface;
a first layer of adhesive on said second surface of said thin, flexible transport plastic sheet;
a layer of preselected medication on said first layer of adhesive;
a second layer of adhesive on said layer of preselected medication; and
an outer layer of peelable adhesive on said first surface of said transport sheet configured for removable attachment to skin.

### Claim 2 (depends on 1)

The medicated pad defined in claim 1 wherein:
said preselected geometric shape of said pads is circular;
said preselected array is a linear matrix comprising a plurality of aligned rows and a plurality of aligned columns.

### Claim 3 (depends on 1)

The medicated pad defined in claim 1 wherein:
said preselected medication is a homogenous mixture of ingredients comprising salicylic acid in a nanomaterial form, vinyl acetate-2, zinc oxide, 1,2 propylene glycol and polyvinylpyrrolidone.

### Claim 4 (depends on 3)

The medicated pad defined in claim 3 wherein:
said preselected medication has a dosage on each of said pads on the order of 0.2 gm.

### Claim 5 (depends on 2)

The medicated pad defined in claim 2 wherein:
each of said pads is on the order of one 15 mm in diameter.

### Claim 6 (depends on 4)

The medicated pad defined in claim 4 wherein:
the percentage by volume of said homogenous mixture of ingredients is:
1.0 to 2.0% nanoparticle salicylic acid, 70-90% vinyl acetate-2, 2.0 to 5.0% zinc oxide, 6.0 to 10.0% 1,2 propylene glycol and 1.0 to 3.0% polyvinylpyrrolidone.

### Claim 7 (depends on 6)

The medicated pad defined in claim 6 wherein:
said thin, flexible transport plastic sheet, said first layer of adhesive and said outer layer of peelable adhesive are each permeable to said preselected medication for the temperature of said preselected medication at an elevated temperature greater than the ambient temperature whereby the preselected medication flows therethrough at such elevated temperature;
said second layer of adhesive is non-permeable to said medication mixture at temperatures lower than said elevated temperature.

### Claim 8

A medicated pad for treating acne comprising:
a thin, flexible transport plastic sheet having a first surface and a second surface;
a first layer of adhesive on said second surface of said thin, flexible transport plastic sheet;
a layer of preselected medication on said first layer of adhesive;
a second layer of adhesive on said layer of preselected medication;
an outer layer of peelable adhesive on said second first surface of said transport sheet configured for removable attachment to skin.

### Claim 9 (depends on 8)

The medicated pad defined in claim 8 wherein:
said preselected medication is a homogeneous mixture of:
1.0 to 2.0% nanomaterial salicylic acid, 70-90% vinyl acetate-2, 2.0 to5.0%, zinc oxide, 6.0 to 10.0% 1,2 propylene glycol and 1.0 to 3.0% polyvinylpyrrolidone, wherein the percentages are percentage by volume.

### Claim 10 (depends on 9)

The medicated pad defined in claim 9 and further comprising:
a base sheet comprising a thin, flexible sheet of polypropylene on said outer layer of peelable adhesive; and,
said outer layer of peelable adhesive is removable attached to said base sheet.

### Claim 11 (depends on 10)

The medicated pad defined in claim 10 wherein:
said thin, flexible transport plastic sheet, said outer layer of peelable adhesive and said first layer of adhesive are permeable to said preselected medication for said second layer of adhesive removably mounted on a person in regions containing acne.

### Claim 12 (depends on 11)

The medicated pad defined in claim 11 wherein:
said layer of preselected medication provides a dosage of about 0.2 grams on each of said pads.

### Claim 13

A method of making a medicated adhesive pad for treating a skin disorder condition on a person comprising the steps of:
a. providing a transport sheet of a thin, flexible sheet of polypropylene having a thickness of about 0.1 to 0.5 mm, said transport sheet having a first surface and a second surface;
b. applying a first thin layer of adhesive to a second surface of the transport sheet and allowing the first layer of adhesive to dry for about 24 hours;
c. applying a thin layer of a homogeneous medication mixture to the first thin layer of adhesive after said first thin layer of adhesive is dry and the homogeneous medication mixture may have a thickness to provide a medication dosage of 0.2 gm of medication, and allowing the thin layer of homogeneous medication layer mixture to dry for about 24 hours;
d. applying a thin second layer of adhesive to the dry thin layer of homogeneous medication mixture after the thin layer of homogeneous medication mixture is dry and allowing the thin second layer of adhesive to dry for about 24 hours;
e. applying a thin outer layer of peelable adhesive to said first surface of the transport sheet configured for removable attachment to skin and allowing the outer layer of peelable adhesive to dry for about 24 hours;
f. after the outer layer of peelable adhesive is dry, cutting the transport sheet with the layers of the first thin layer of adhesive, the thin layer of a homogeneous medication mixture, the thin second layer of adhesive and the thin outer layer of peelable adhesive thereon into the individual pads having a preselected geometrical shape;
g. providing a base sheet of polypropylene;
h. pressing the thin outer layer of peelable adhesive on each of the pads onto the base sheet of polypropylene in a preselected array so as to be removably mounted thereon.

### Claim 14 (depends on 13)

The method defined in claim 13 wherein:
each of the steps of allowing each of the first thin layer of adhesive, the thin second layer of adhesive, the thin outer layer of peelable adhesive and the thin layer of homogeneous medication mixture to dry is on the order of 24 hours.

### Claim 15 (depends on 14)

The method defined in claim 14 wherein:
each of said first thin layer of adhesive, said thin second layer of adhesive and said outer layer of peelable adhesive is vinyl acetate.

### Claim 16 (depends on 15)

The method defined in claim 15 and further comprising the steps of:
a. removing a pad from said base sheet of polypropylene to provide a removed pad;
b. applying the removed pad to the skin of a person to cover a skin disorder by pressing the outer layer of peelable adhesive onto the skin;
c. allowing the removed pad to remain on the person for a time period of about 10 to 12 hours.

### Claim 17 (depends on 16)

The method defined in claim 16 wherein:
said thin layer of a homogeneous medication mixture provides a dosage of said thin layer of medication mixture on said removed pad of about 0.2 gm.
